HomeMy WebLinkAboutRECLAMATION PLAN FOR PACIFIC AGGREGATES-NICHOLS CANYON MINE FINAL 11-2006 RECLAMATION PLAN FOR
PACIFIC AGGREGATES/ NICHOLS CANYON MINE
PREPARED FOR:
Pacific Aggregates, Inc
(Surface Mining Operator)
14741 Lake Street
Lake Elsinore, CA. 92000
PREPARED BY: i
The Planning Associates
3151 Airway Ave. Suite R-1
Costa Mesa, CA 92626
(714) 556-5200
FINAL
Approved by the City Council on November 14, 2006
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APPENDIX A
"Preliminary Geotechnical Investigation Proposed Outlet Mall Expansion Nichols
Road Project"—Report prepared by Geotechnics Incorporated, Dated June 14,
2005
54
,mob, Geotechnics
i Incorporated
San Diego
El Centro
Riverside
1
1 PRELIMINARY GEOTECHNICAL INVESTIGATION
PROPOSED OUTLET MALL EXPANSION
NICHOLS ROAD PROJECT
LAKE ELSINORE, CALIFORNIA 92532
I (PARCEL MAP 25638)
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prepared for
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Castle and Cooke
19700 Fairchild, Suite 300
{ Irvine, California 92612
by
GEOTECHNICS INCORPORATED
Project No. 0860-002-00
Document No. 05-0597
i
June 14, 2005
9245 Activity Road,Ste. 103 • San Diego, California 92126
Phone(858)536-1000 • Fax(858)536-8311
imai&, Geotechnics
Incorporated
San Diego
El Centro
June 14, 2005 Riverside
Castle and Cooke Project No. 0860-002-00
19700 Fairchild, Suite 300 Document No. 05-0597
Irvine; California 92612
Attention: Mr. Scott Thayer
SUBJECT: PRELIMINARY GEOTECHNICAL INVESTIGATION
Proposed Outlet Mall Expansion
Nichols Road Project
Lake Elsinore, California 92532
(Parcel Map 25638)
Dear Mr. Thayer:
In accordance with your request, we have completed a Preliminary Geotechnical Investigation
for the proposed Outlet Mall Expansion at Nichols Road in Lake Elsinore, California (Parcel
Map 25638). This report presents the results of our investigation and provides recommendations
for the geotechnical aspects of site preparation and earthwork construction, and for the design of
foundations, on-grade slabs, retaining walls, and pavements. Based on the results of our
investigation, we consider the proposed construction feasible from a geotechnical standpoint.
We appreciate this opportunity to provide our professional services. If you have any questions or
require additional services, please do not hesitate to contact us.
Respectfully submitted,
GEOTECHNICS INCORPORATED
John R. Theissen, PE W. Lee Vanderhurst, CEG
Principal Principal
Distribution: (6) Addressee
9245 Activity Road,Ste. 103 • San Diego, California • 92126
Phone(858)536-1000 • Fax(858)536-8311
PRELIMINARY GEOTECHNICAL INVESTIGATION
PROPOSED OUTLET MALL EXPANSION
NICHOLS ROAD PROJECT
LAKE ELSINORE, CALIFORNIA 92532
(PARCEL MAP 25638))
TABLE OF CONTENTS
1 INTRODUCTION....................................................................................................................... 1
2 SCOPE OF SERVICES............................................ 1
3 SITE DESCRIPTION.................................................................................................................. 2
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4 PROPOSED DEVELOPMENT............................................
1 5 GEOLOGY AND SUBSURFACE CONDITIONS .................................................................... 3
5.1 Bedford Canyon Formation.................................. 4
............................................
5.2 Granitic Rock........................................................ 5
5.3 Alluvium................................................................................. 5
5.4 Alluvial Fan Deposits ................................................................................................... 5
I5.5 Colluvium ..................................................................................................................... 6
5.6 Undocumented Fill........................................................................................................ 6
5.7 Groundwater....................................................................... 6
6 GEOLOGIC HAZARDS
6.1 Seismicity and Ground Motion..................................................................................... 7
6.1.1 Deterministic Analysis................................................................................... 8
6.1.2 Historical Analysis......................................................................................... 8
6.1.3 Probabilistic Analysis .................................................................................... 9
6.2 Surface Rupture .........................................................
6.3 Liquefaction and Dynamic Settlement........................................................................ 10
6.4 Landslides and Lateral Spreads ............................................. ............................ 10
6.5 Tsunamis, Seiches, and Flooding.................................
6.6 Subsidence.................................................................................................................. 11
7 CONCLUSIONS........................................................................................................................ 12
8 RECOMMENDATIONS.......................................
8.1 Plan and Specification Review ............................. ..................................................... 13
8.2 Excavation and Grading Observation......................................................................... 14
8.3 Earthwork.................................................................................................................... 14
8.3.1 Site Preparation............................................................................................ 14
8.3.2 Bedrock Excavation......................................... ............... 15
.............................
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` PRELIMINARY GEOTECHNICAL INVESTIGATION
PROPOSED OUTLET MALL EXPANSION
NICHOLS ROAD PROJECT
LAKE ELSINORE, CALIFORNIA 92532
(PARCEL MAP 25638)
ti TABLE OF CONTENTS (Continued)
8.3.3 Remedial Grading........................................................................................ 16
8.3.4 Cut/Fill Transitions...................................................................................... 18
I8.3.5 Expansive Soils............................................................................................ 18
8.3.6 Structural Fill Material................................................................................. 19
8.3.7 Oversized Materials..................................................................................... 19
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8.3.8 Keyways and Benching................................................................................20
8.3.9 Subsurface Drainage Systems.................
8.3.10 Fill Compaction .........................................................................................21
8.3.11 Temporary Excavations............................................................................. 22
8.3.12 Lateral Pressures on Shoring ..................................................................... 23
8.3.13 Bulk/Shrink Estimates ............................................................................... 23
8.3.14 Slopes.........................................................................................................23
8.4 Surface Drainage....................................................................... . 24
8.5 Foundation Recommendations. . ................................ 25
8.5.1 Conventional Foundations...........................................................................25
l 8.5.2 Drilled Piers or Deepened Spread Footings.................................................26
8.6 Slope Setback..............................................................................................................27
8.7 CBC Seismic Parameters............................................................................................27
8.8 Building Settlements................................................................................................... 28
8.9 Interior Building Slabs................................................................................................ 28
8.9.1 Moisture Protection for Interior Slabs .........................................................28
8.9.1.1 Commonly Used Method..............................................................29
8.9.1.2 Current ACI 302 Recommendations.............................................29
8.9.2 Exterior Slabs............................................................................................... 31
8.10 Earth-Retaining Structures........................................................................................ 31
8.11 Pipelines.................................................................................................................... 33
8.11.1 Thrust Blocks............................................................................................. 33
8.11.2 Modulus of Soil Reaction .......................................................................... 33
8.11.3 Pipe Bedding
8.12 Pavements................................................................................................................. 34
8.12.1 Asphalt Concrete........................................................................................ 35
8.12.2 Portland Cement Concrete......................................................................... 35
8.13 Soil Corrosivity......................................................................................................... 36
9 LIMITATIONS OF INVESTIGATION.................................................................................... 36
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PRELIMINARY GEOTECHNICAL INVESTIGATION
PROPOSED OUTLET MALL EXPANSION
NICHOLS ROAD PROJECT
LAKE ELSINORE, CALIFORNIA 92532
(PARCEL MAP 25638)
i TABLE OF CONTENTS (Continued)
APPENDICES
REFERENCES ..............................................................................................................Appendix A
SUBSURFACE EXPLORATION.................................................................................Appendix B
LABORATORYTESTING...........................................................................................Appendix C
SEISMICANALYSIS...................................................................................................Appendix D
ILLUSTRATIONS
REGIONAL SEISMICITY........................................................................................Tables 1 and 2
SITE LOCATION MAP......................................................................................................Figure 1
LOCALGEOLOGIC MAP.................................................................................................Figure 2
FAULT LOCATION MAP..................................................................................................Figure 3
TRANSITION DETAILS....................................................................................................Figure 4
SLOPE CONSTRUCTION DETAILS................................................................................Figure 5
SLOPEDRAIN DETAIL....................................................................................................Figure 6
SUBDRAIN HEADWALL DETAILS................................................................................Figure 7
WALL DRAIN DETAILS —CANTILEVERED RETAINING WALL.............................Figure 8
WALL DRAIN DETAILS —GRAVITY RETAINING WALL.........................................Figure 9
GEOTECHNICALMAP........................................................................................................Plate 1
GEOLOGIC CROSS-SECTIONS..........................................................................................Plate 2
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Geotechnics Incorporated
PRELIMINARY GEOTECHNICAL INVESTIGATION
PROPOSED OUTLET MALL EXPANSION
NICHOLS ROAD PROJECT
LAKE ELSINORE, CALIFORNIA 92532
(PARCEL MAP 25638)
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1 INTRODUCTION
r This report presents the results of our Preliminary Geotechnical Investigation for the proposed
Outlet Mall Expansion in Lake Elsinore, California (Parcel Map 25638). The purpose of our
investigation was to evaluate the existing subsurface conditions at the site as they relate to the
proposed development and provide geotechnical design parameters for the planned construction.
The conclusions and recommendations presented in this report are based on the subsurface
I conditions encountered during our field explorations, laboratory testing, engineering evaluations,
I and our experience with similar soils and geologic conditions.
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2 SCOPE OF SERVICES
The scope of services provided during this investigation was generally as described in our
Proposal No. 04-134R dated March 28, 2005 (Document No. 04-0533R). Our scope of work did
not include evaluation of potentially contaminated soils. Our scope of work included the
following items:
• Review of available published geologic maps, topographic maps, aerial photographs, and
other literature pertinent to the geotechnical conditions at the site. Pertinent references
are listed in Appendix A.
• Subsurface explorations consisting of drilling 10 borings using a hollow stem auger to
depths up to about 51'/2 feet below existing grade. Bulk and relatively undisturbed
samples were collected for laboratory testing. The borings were logged by our geologist
+ and then backfilled. The boring logs are presented in Appendix B.
1 • Laboratory testing of selected samples of the on-site soils to assess the pertinent physical
characteristics of the materials. The testing included particle size distribution, maximum
density and optimum moisture content, expansion index, water-soluble sulfate and
chloride content, pH, resistivity, R-value, collapse potential, and direct shear. The results
of the laboratory tests are presented in Appendix C.
0 Evaluation of significant geologic hazards that may affect site development, including the
effects of ground shaking due to seismic events on nearby active faults.
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• Engineering analysis of field and laboratory data to make recommendations regarding
site preparation, earthwork and backfill, remedial earthwork, foundation design
parameters, soil bearing capacities, foundation settlement potential, retaining wall design,
soil reactivity, and site drainage and moisture protection.
Preparation of a bound, illustrated report summarizing our findings, conclusions, and
j recommendations.
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3 SITE DESCRIPTION
The site of the proposed Outlet Mall Expansion is located along Nichols Road just east of
Interstate 15 in Lake Elsinore, California (Parcel Map 25638). The approximate site location is
shown on Figure 1, Site Location Map. The subject site is bound by Interstate 15 to the west,
and by undeveloped land to the north. The southern and eastern portions of the site are bound by
both developed and undeveloped land. Residential homes are located adjacent to the
southeastern portion of the site along El Toro Road, and two large municipal water tanks are
located adjacent to the east-central portion of the site. The site is shown in greater detail on the
Geotechnical Map, Plate 1.
The site encompasses approximately 190 acres total, with approximately 140 acres located north
of(future) Nichols Road, and approximately 50 acres on the south side of Nichols Road. Much
of the northern portion of the site is to be left undeveloped as open space. The bulk of the
development will be in the southern two-thirds of the site along Nichols Road. At this time, the
site is undeveloped except for some dirt roads and fences. Earthwork has taken place on site in
the past in conjunction with the construction of Interstate 15 in the early 1980's. The topography
of the site ranges from very steep to nearly flat. A prominent ridge is located in the northern
portion of the site, which slopes moderately to very steeply to the south. Small to moderate sized
drainages have been incised into the hillside. The central and southern portions of the site
Iconsist of a relative flat, broad valley punctuated by three hilltops south of Nichols Road. The
valley generally slopes to the west, with small drainages deflected to the north and south around
the hilltops. Elevations on site range from approximately 1,900 feet above mean sea level (msl)
in the northeastern portion of the site, to approximately 1,277 feet msl in a drainage bottom near
the southwestern corner of the site. Scattered grasses and weeds cover much of the site.
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4 PROPOSED DEVELOPMENT
Based on the schematic site plan provided by Bickel Underwood Architects, we understand the
proposed development will include the construction of up to 27 one-story commercial/retail
buildings, a gas station, and paved access roads and parking areas. Plate 1, Geotechnical Map,
{ shows the proposed locations of the facilities.
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We anticipate that the buildings will consist of wood frame, light metal frame, or concrete
masonry construction with shallow spread footings and continuous wall footings and slab-on-
grade floors. Structural loads are not known but are anticipated to be typical for such
_ construction. In addition, some freestanding, post supported structures may be used at the site.
( Such structures may be supported by cast-in-place reinforced concrete shafts. Retaining walls
are also anticipated.
The site will be sheet graded to flow towards the west. The portion of the site north of Nichols
Road will slope from an elevation of 1,297 feet MSL at the western boundary up to 1,314 feet
MSL at the eastern edge of the development at a gradient of approximately 1.0 percent. The
S portion of the site south of Nichols Road will slope from an elevation of 1,305 feet MSL at the
western boundary up to 1,323 feet MSL approximately three quarters across the site at a gradient
of approximately 1.2 percent, where the grade will rise up to elevation 1,348 at a 2:1
(horizontal:vertical) slope the grade will then rise from and elevation of 1348 feet MSL to 1,362
feet MSL at the eastern edge of the development at a gradient of approximately 2.5 percent. The
topography of the site is such that some earthwork, including cuts and fills, will be necessary to
achieve relatively level building areas. In addition, the existing drainage will likely have to be
+ replaced with a culvert and the drainage ravine filled in. Except for the removal of the existing
hills, the anticipated cuts are expected to be generally less than 20 feet deep from existing grades
I and the planned fills may be 25 feet above existing grade. Geotechnical factors affecting
construction of the site include differential settlement due to cut/fill transitions and deeper fills.
5 GEOLOGY AND SUBSURFACE CONDITIONS
The site of the proposed Outlet Mall Expansion is located in the Peninsular Ranges geomorphic
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province of California. The Peninsular Ranges province, which stretches from the Los Angeles
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1 basin to the tip of Baja California, is characterized as a series of northwest trending mountain
ranges separated by subparallel fault zones, and a coastal plain of subdued landforms. The
mountain ranges typically consist of Jurassic to Cretaceous age metamorphic and crystalline
rock, with the coastal plain predominantly comprised of late Cretaceous to Tertiary age
1 sedimentary rocks. The mountain ranges are cut by northwest trending fault bound valleys. The
l Nichols Road project site is located on the northeast edge of a valley formed by the Elsinore
( fault.
Specifically, the subject site is located within the rugged mountain section of the Peninsular
Ranges Geomorphic Province in an area commonly referred to as the Perris Block. The Perris
Block is a distinct structural province bounded by the Elsinore fault zone to the southwest, the
San Jacinto fault zone to the northeast, and the Cucamonga fault zone to the north. The Perris
Block is characterized as being underlain by lithologically diverse metasedimentary rocks
intruded by plutons of the Peninsular Ranges batholith, with nonmarine Quaternary age
sediments discontinuously covering the metasedimentary and crystalline rocks (Morton, 2004).
The approximate locations of our exploratory borings are shown on Plate 1, Geotechnical Map.
( Geologic cross-sections of portions of the site where buildings are planned are depicted on Plate
f 2, Geologic Cross-Sections. The boring logs are presented in Appendix B. In general, the site is
underlain by Jurassic age metasedimentary rock, Cretaceous age granitic rock, and Quaternary
age alluvial and colluvial sediments. Generalized descriptions of the subsurface materials
1 follow:
` 5.1 Bedford Canyon Formation
The Jurassic age Bedford Canyon Formation was encountered discontinuously across the
site in borings B-3, B-6, and B-9, and is exposed in the three hilltops in the southern half
I of the site. As observed on site, the Bedford Canyon Formation typically consists of dark
gray to brown metasedimentary rock (slate) that is moderately to intensely fractured.
Lesser amounts of metasandstone and quartzite were also observed, generally within the
relict bedding features. A relatively thick profile of intensely weathered metasedimentary
rock was observed in borings B-6 and B-9. The slate was observed to be weathered to
silt (Unified Soil Classification ML) and clay(CL), with sand sized particles of quartzite.
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5.2 Granitic Rock
Much of the northern portion of the site is underlain by granitic rock of the Cretaceous
age Peninsular Ranges batholith. As observed on site, the rock is generally composed of
granite, granodiorite, and tonalite. Color varies from light brown when weathered to light
gray to gray on fresh surfaces. Prior test drilling on site indicated the granitic rock is hard
( to very hard at depth (Geotechnics Incorporated, 2005a). The rock weathers into cobbles
and boulders up to approximately 6 feet in diameter.
5.3 Alluvium
Quaternary age alluvial sediments were encountered across much of the lower elevations
of the site in borings B-1, B-2, B-4, B-5, B-6, B-7, B-8, B-9, and B-10. The alluvial
materials encountered in our borings generally consist of fine to coarse grained silty sand
(SM), well graded sand with silt (SW-SM), and poorly graded sand with silt (SP-SM).
f Sandy silt (ML) and clayey sand (SC) were occasionally observed, and sandy clay (CL)
( was encountered in two borings. Some gravel and cobble was encountered throughout
( the alluvium. The alluvial materials graded from loose to medium dense at the surface to
typically dense at depth, and ranged from dry at the surface to moist at depth. In general,
the sandy alluvial materials exhibit a low to very low expansion potential. Some medium
fexpansion clays may also be present at the site.
i 5.4 Alluvial Fan Deposits
Alluvial fans are present on site at the mouths of drainages exiting onto the alluvial valley
floor from the hillsides in the northern portion of the site. The alluvial fans are composed
of sediments that are deposited primarily by debris flows. The alluvial fans are
anticipated to consist of gravel, cobble, and boulder size clasts of granitic rock in a matrix
of clayey sand (SC) and silty sand (SM). Boulders up to three feet in diameter were
observed on the surfaces of the fans.
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5.5 Colluvium
Colluvium is the gradual accumulation of weathered material, usually on a slope,
transported by gravity. A relatively thick profile of colluvium is anticipated at the base of
the steeper slopes forming the northern boundary of the development. The colluvium
typically consists of fine to medium grained silty sand with gravels (SM) to sandy silt
I (ML) with gravels. Trace amounts of clay (CL) and caliche may be encountered in the
colluvial soils. Pinhole porosity in the finer grained soils is also common.
5.6 Undocumented Fill
Minor fills were not encountered in the borings drilled on site. Piles of loose fill soils
were dumped in some areas of the site, and the prior report by Converse Consultants
(1994)noted undocumented fill soils on the hilltop in the southwestern portion of the site.
Variable amounts of fill are anticipated within the current alignment of Nichols Road,
and along the western site boundary in association with the construction of Interstate 15
in the early 1980's. Deeper fills may exist in other areas of the site. The depth and
extent of the fill materials may be difficult to determine because the fill is probably
jderived from alluvial materials in the area. We did not review any documentation of the
placement of fill materials, and none was provided; therefore, any fills encountered at the
Ssite are considered undocumented ,fills. Such fills are considered compressible and not
capable of supporting structural loads in their present condition.
5.7 Groundwater
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Groundwater was discontinuously observed in the exploratory borings drilled during this
investigation. Groundwater was encountered in borings B-1 and B-7 within the alluvium
at depths of 35 and 33 feet respectively. Light to moderate groundwater seepage was
observed within weathered rock of the Bedford Canyon Formation in boring B-9 at a
depth of 18 feet. A consistent groundwater table, however, was not observed. As
presented in the prior geotechnical report (Converse Consultants, 1994), groundwater was
encountered in borings BH-1 and BH-5 at depths of 39 and 46 feet, respectively.
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i In hard rock terrain, groundwater seepage typically occurs at the interface between more
permeable surficial materials and the underlying hard rock, or within fractures within the
bedrock. Groundwater conditions may fluctuate in the future due to rainfall, irrigation, or
broken pipes. Since the prediction of the location of such conditions is difficult, they are
typically mitigated if and when they occur.
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6 GEOLOGIC HAZARDS
The subject site is located within an area that may have geologic hazards. Based in part on our
( review of fault investigation reports (CGS, 2003) and fault evaluation reports (CGS, 2002),
I evidence of past significant soil failures, landslides, or surface fault rupture was not observed at
the site. However, small, alluvial fan deposits were observed in the northern portion of the site,
and the drainages on the south facing slopes in the northern portion of the site may be subject to
localized flash flooding and debris flows. Evidence of collapsible soils was encountered during
this investigation and prior investigations at the site. The site is in a seismically active area of
California and strong ground shaking is expected to occur during the design life of the facilities.
f The structures should be designed to resist earthquake forces using methods such as those
y presented in the California Building Code (2001 CBC). Potential geologic hazards at the site are
as follows:
f
6.1 Seismicity and Ground Motion
Several commercially available computer programs were used to evaluate potential
l seismicity at the subject site, including EQFAULT, EQSEARCH, and FRISKSP. The
seismic analyses are presented in Appendix D. For comparison purposes, all of these
programs used the median accelerations determined by the same attenuation relationship
for soil sites (Sadigh et al, 1997) and rock sites (Sadigh et al, 1997). These programs
determine the distance between the site and known active faults based on latitude and
longitude. Site coordinates were estimated using TOPO! (National Geographic Holdings,
2001). The site occupies a roughly triangular parcel bounded by latitude 33.7058' north
and longitude 117.3555' west at the southwestern corner, latitude 33.7057' north and
longitude 117.3467' west at the southeastern corner, and latitude 33.7108' north and
j longitude 117.3597' west at the northern corner.
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6.1.1 Deterministic Analysis
The locations of known active faults within a 100-km (62.1-mile) radius of the
site are presented on the Fault Location Map, Figure 3. Tables 1 and 2 summarize
fthe properties of these faults, and provide peak ground accelerations (PGA) for an
event on each of these faults. The values presented in Tables 1 and 2 were
developed using the program EQFAULT and supporting documentation (Blake,
2000) and the attenuation relationship for soil sites (Sadigh et al, 1997) and rock
sites (Sadigh et al, 1997) as described in Appendix D. Deterministic analysis is
i conducted by assuming that each fault of interest will rupture at the nearest
distance to the site. The results do not have substantial statistical significance, but
they are useful for indicating the relative contribution of each of the nearby faults
to the total seismic risk at a site.
For purposes of the analysis, a soil site location was selected at latitude 33.7069"
north and longitude 117.3513' west and a rock site location was selected at
latitude 33.7097' north and longitude 117.3566' west. These locations are shown
on the Site Location Map, Figure 1. The nearest known active faults are the Glen
Ivy (Elsinore), which is located approximately 2.71 km (1.68 miles) southwest of
the soil site location and approximately 2.70 km (1.68 miles) southwest of the
rock site location, and the Temecula (Elsinore), which is located approximately
5.15 km (3.20 miles) southwest of the soil site location and approximately 5.08
km (3.16 miles) southwest of the rock site location based on the fault evaluation
reports (CGS, 2002)
6.1.2 Historical Analysis
The historical site seismicity was studied using the program EQSEARCH (Blake,
2000). A listing of the locations and dates of the earthquakes with magnitudes
between 4.0 and 9.0 that have occurred within 100 km (62.1 miles) of the site is
presented in Appendix E along with the Seismic Recurrence Curve generated
from this data. It should be noted that most of the magnitudes for the older
seismic events were estimated based on eyewitness accounts of the levels of
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ground shaking and reported damage. None of the earthquakes reported in
Appendix D is believed to have significantly damaged the subject site.
6.1.3 Probabilistic Analysis
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In order to provide an estimate of the potential peak ground acceleration that
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structures founded at the site may experience in the fixture, the program FRISKSP
was used to perform a probabilistic analysis of seismicity. The analysis was
conducted using, the characteristic earthquake distribution of Youngs and
Coppersmith (1985). The results are also presented in Appendix D. Note that
I two sets of results are given, one with and one without magnitude weighting.
Magnitude weighting (for a moment magnitude of 7.5) was used to develop
probabilistic PGA for use in liquefaction analysis.
Based on the probabilistic analysis, the Design-Basis Earthquake, defined as the
j peak ground acceleration, which has a 10 percent probability of being exceeded in
a 50-year period (or a 475-year return period), is estimated to be 0.68g for that
portion of the site underlain by rock and 0.57g for that portion of the site
underlain by soil.
6.2 Surface Rupture
Surface rupture is the result of movement on an active fault reaching the surface. The
site is shown in relation to known active faults in the region on Figure 3. The site is not
located in an Alquist-Priolo Earthquake Fault Zone. The nearest known active faults are
the Glen Ivy (Elsinore), which is located approximately 2.43 km (1.51 miles) southwest
of the southwest corner of the site and the Temecula (Elsinore), which is located
approximately 4.79 km (2.98 miles) southwest of the southwest comer of the site. These
I distances are based on the Fault Evaluation Reports Prepared under the Alquist-Priolo
Earthquake Fault Zoning Act (CGS, 2002), which are intended to represent zones of
anticipated fault rupture. There are no known active faults underlying the site or
projecting toward the site. In our opinion, the probability of surface rupture due to
faulting beneath the site is considered low.
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6.3 Liquefaction and Dynamic Settlement
f Liquefaction is a process in which soil grains in a saturated deposit lose contact after the
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occurrence of earthquakes or other sources of ground shaking. The soil deposit
Itemporarily behaves as a viscous fluid; pore pressures rise, the strength of the deposit is
greatly diminished, and the soils may experience significant post liquefaction settlement.
Liquefiable soils typically consist of cohesionless sands and silts that are loose to
medium dense, and saturated. To liquefy, soils must be subjected to ground shaking of
sufficient magnitude and duration. The site is underlain by dense alluvial soils at the
anticipated level of the groundwater table. In our opinion, the potential for liquefaction
to occur at the site is negligible.
Dynamic settlement is a process in which a deposit of loose soil densities during the
vibrations induced by the occurrence of earthquakes or other sources of ground shaking.
Soils subject to dynamic settlement typically consist of cohesionless sands and silts, but
( such soils do not have to be saturated. To settle the soils must be subjected to ground
( shaking of sufficient magnitude and duration. The site is underlain by dense alluvial soils
at depth and the existing looser shallow undocumented fills, wash deposits, and alluvium
will be removed and replaced with compacted fill during site grading. In our opinion, the
potential for significant dynamic settlement to occur at the site following development is
jnegligible.
1 6.4 Landslides and Lateral Spreads
Evidence of ancient landslides or slope instabilities was not observed at the site during
our investigation. The site will not contain bluffs, steep slopes, or other topographic
features susceptible to landslides after site grading. Accordingly, the potential for
landslides to impact the site is considered low.
Lateral spreading is the result of liquefaction or plastic deformation occurring on gently
sloping ground during an earthquake. Typically, the event requires an unsupported, steep
cut or scarp at the toe of the failure area that allows the initial lateral displacement. The
site is underlain by dense alluvial soils at depth and the existing looser shallow
undocumented fills, wash deposits, and alluvium will be removed and replaced with
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compacted fill during site grading. Therefore, the developed site is not expected to be
susceptible to lateral spreading or landsliding associated with a seismic event on a nearby
active fault.
6.5 Tsunamis, Seiches, and Flooding
Given the distance between the subject site and the coast, and the site's elevation above
sea level (approximately 1,300 feet), damage due to tsunamis (seismically induced
I waves) is considered negligible. The site is not immediately adjacent to any lakes or
confined bodies of water; therefore, the possibility of earthquake-induced flooding due to
seiches is also negligible. The site is not located downstream of any lakes or confined
fbodies of water; therefore, the possibility of earthquake-induced inundation in the event
of dam failures is also negligible. Based on the Federal Emergency Management Agency
internet flood maps, a small portion of the southeast corner of the property outside of the
f area of planned development is located within a Federal Emergency Management
Agency (FEMA) 100-year floodplain. In addition, the drainages on the south facing
slopes in the northern portion of the site may be subject to localized flash flooding and
1 debris flows during periods of heavy rainfall, particularly were alluvial fan deposits are
already present.
6.6 Subsidence
The subject site is not within an area known for past cases of substantial subsidence due
to fluid removal (Alfors et. al., 1973). It is our opinion that the potential for significant
subsidence due to the extraction of fluids is negligible.
Soils subject to hydrocollapse were noted in the borings excavated at the site. Soil
settlement associated with wetting of the subgrade materials is anticipated, but such
settlement can be mitigated provided that the loose surficial alluvial soils and fills are
recompacted as recommended herein. Post construction soil settlement associated with
landscape irrigation is anticipated to be less than in the range of 1 to 3 inches.
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7 CONCLUSIONS
Based on the results of this investigation, it is our opinion that the proposed construction is
feasible from a geotechnical standpoint provided the following recommendations and appropriate
Iconstruction practices are followed. No geotechnical conditions were encountered that would
preclude the proposed construction. Geotechnical design and construction considerations
( include the following:
i
I • The proposed buildings and associated structures may be supported on conventional
! shallow spread foundations and continuous wall footings with slab-on7grade floors or
raised floors, provided the recommendations of this report are followed.
j Recommendations for design of shallow foundations and slab-on-grade floors are
I provided in this report.
• The site is underlain by metamorphic and granitic rocks, alluvial and colluvial soils,
alluvial fan debris flows, and possibly undocumented fills. The metamorphic and granitic
rocks are considered suitable for support of structures, improvements, or fills. The
deeper, denser alluvial materials are considered suitable for support of structures,
( improvements, or fills. However, the shallower disturbed alluvial soils, alluvial soils
subject to hydrocollapse, and any alluvial fan debris flows and undocumented fills
E encountered at the site are considered compressible and may experience settlement under
increased loading from structures or new fills. Recommendations for removal and
recompaction of compressible soils are provided in this report. We anticipate that
removals will be approximately 25-feet deep beneath buildings and 2-feet deep beneath
pavements.
• The proposed buildings may be located across transitions from fill to dense alluvial
materials or bedrock. To reduce the potential for distress associated with differential
settlement, pads should be graded so that individual structures do not straddle such
cut/fill transitions. Remedial grading recommendations to handle cut/fill transitions are
provided in this report.
' • The on-site alluvial and colluvial soils and bedrock materials, in general, appear suitable
for re-use in compacted fills, for use as finish grade soils, or as landscape fills. The on-
i site sandy alluvial and colluvial soils may be suitable for re-use in wall backfill
depending on expansion potential and permeability. Laboratory tests indicate that the
existing sandy alluvial soils have a low to very low expansion potential. The onsite
clayey alluvial soils may have a low expansion to medium expansion potential depending
on the amount of clay in the soil.
I
• In general, excavations at the site should be achievable using standard heavy earthmoving
equipment in good-working order with experienced operators. However, some
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excavations may encounter less weathered rock that may require extra excavation effort
including ripping and blasting and which may also generate oversized material that will
i require extra effort to crush or haul off-site. Deeper trench excavations for sewers or
i other utilities may encounter rock that may require ripping or blasting to excavate.
• Groundwater was encountered at depth in the borings excavated during this investigation.
Shallower groundwater may develop in the future. Current groundwater elevations are
not anticipated to significantly impact the proposed construction.
• Evidence of existing slope instabilities, or landslides, was not encountered during our
investigation. Temporary construction slopes and permanent slopes may be susceptible
to surficial erosion by wind, rainfall, or runoff. Recommendations to enhance surficial
slope stability are provided later in this report.
• Areas of the site located on or below alluvial fan deposits or within drainages emptying
from the hills to the north of the site, should be protected from localized flooding and
debris flows by the installation of flood diversion structures and debris catchment basins.
• There are no known active faults underlying the project site. Potential seismic hazards at
the site would more likely be associated with ground shaking associated with seismic
events along regional active faults. Seismic shaking hazards are typically mitigated
through building designs in accordance with the California Building Code.
1
8 RECOMMENDATIONS
The remainder of this report presents recommendations regarding earthwork construction as well
as geotechnical recommendations for the design of the proposed structures and improvements.
These recommendations are based on empirical and analytical methods typical of the standard-
i
of-practice in southern California. If these recommendations appear not to address a specific
feature of the project, please contact our office for additions or revisions to the
y recommendations.
f
I 8.1 Plan and Specification Review
l
Preliminary plans were used as the basis for this investigation. We recommend that final
grading plans, foundation plans, and earthwork specifications be reviewed by
Geotechnics Incorporated prior to finalization to evaluate confonnance of the plans with
I ) the intent of the recommendations of this report. Significant changes in the locations or
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I
elevations of the proposed structures or pad grades may require additional geotechnical
evaluation.
Il
l
8.2 Excavation and Grading Observation
I I
Foundation excavations and site grading should be observed by Geotechmcs
Incorporated. Geotechnics Incorporated should provide observation and testing services
continuously during grading. Such observations are considered essential to identify field
conditions that differ from those anticipated by the investigation, to adjust designs to
actual field conditions, and to determine that the grading is accomplished in general
accordance with the recommendations of this report. Recommendations presented in this
report are contingent upon Geotechnics Incorporated performing such services. Our
personnel should perform sufficient testing of fill during grading to support our
i
professional opinion as to compliance with compaction recommendations.
I 8.3 Earthwork
t Earthwork is anticipated to include remedial grading, excavations for foundations,
temporary excavations for underground utilities, and placement of fill and backfill.
Grading and earthwork should be conducted in accordance with the California Building
Code (CBC), with the City of Lake Elsinore grading ordinances, and with the
recommendations of this report. The following recommendations are provided regarding
specific aspects of the proposed earthwork construction. These recommendations should
be considered subject to revision based on field conditions observed by the geotechnical
consultant during grading.
8.3.1 Site Preparation
General site preparation should include the removal of unsuitable and deleterious
materials, existing structures, or other improvements from areas that will be
subjected to structural or fill loads. Clearing and grubbing should consist of the
removal of vegetation including brush, grass, weeds, wood, tree roots, and
otherwise deleterious materials from areas to be graded. Clearing and grubbing
should extend to the limits of grading. Unsuitable materials include vegetation,
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trash, construction debris, highly organic soil, highly expansive clays,
contaminated soils, or other undesirable materials. Removed materials should be
hauled off-site and legally disposed.
I� The removal of unsuitable materials should be conducted under the observation of
the geotechnical consultant to evaluate the competency of the exposed materials
for support of structural and fill loads. The excavation of unsuitable materials
I�. should be conducted in a way that minimizes the disturbance of competent
II materials.
All buildings, structures, foundations, utilities above and below( ground), and any
other man-made improvements within the grading limits, that are not to be saved
for future use, should be demolished and legally disposed off-site. Subsurface
improvements or obstructions that are to be removed should be excavated and
hauled off-site. The resulting excavations should be backfilled and compacted in
1 accordance with the recommendations of this report. Demolition of pipelines may
consist of capping or rerouting at the project perimeter, and removal within the
project perimeter. If appropriate, abandoned pipelines may be filled with grout or
slurry cement as recommended by, and under the observation of, the geotechnical
consultant. Man-made improvements to be saved should be protected from
damage by the contractor.
1 8.3.2 Bedrock Excavation
Three seismic refraction profiles conducted across the two bedrock hills located in
{ the western and eastern portions of the proposed development indicated that both
the western and eastern bedrock hills are mantled with 5 to 20 feet of colluvium
and older alluvium. Weathered bedrock was indicated to a depth of 50 to 65 feet
under both of the hills.
I
Unweathered bedrock with a seismic wave velocity greater than 12,000 feet per
` second (fps) was reported below the western hill. The top of the unweathered
bedrock core beneath the western hill corresponded to an approximate elevation
)
fof 1,295 feet MSL. Based on the results of the seismic survey it is anticipated that
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the proposed grading of the western hill will primarily be in weathered bedrock
with a seismic wave velocity of 4,400 to 5,100 fps. Unweathered bedrock is
anticipated to be within 15 feet of proposed building pad grades. However, the
unweathered bedrock contact can be highly variable and may be shallower.
Unweathered bedrock with a seismic wave velocity of approximately 9,000 fps
was reported below the eastern hill. The unweathered bedrock contact beneath
the east hill was reported at an elevation of approximately 1,300 feet MSL on the
west side and 1,340 feet MSL beneath the core. It is anticipated that the proposed
grading of the eastern hill will primarily be in weathered bedrock with a seismic
wave velocity of about 5,200 fps. Unweathered bedrock is anticipated to be
within 15 feet of proposed pad grades. However, the unweathered bedrock
Icontact can be highly variable and may be shallower.
l Excavation of the weathered rock should be possible standard heavy earthmoving
l equipment in good-working order with experienced operators. Unweathered
J bedrock may be marginally rippable to non-rippable.
( 8.3.3 Remedial Grading
Based on our explorations and previous explorations, the site appears to be
1 underlain by potentially collapsible alluvial soils to depths up to about 25 feet
below existing grade. Deeper deposits of compressible undocumented fills and
disturbed alluvial soils may exist elsewhere on the site. Existing alluvial fans and
drainages may also contain deeper deposits of loose wash deposits and debris
flows. Expansive clays may also be present on the site.
Compressible Soils: Remedial grading is recommended wherever compressible
soils exist within proposed building pads and other structural fill areas, within
exterior concrete flatwork areas and pavement areas, within improvement areas,
or wherever the existing soils are disturbed due to demolition of existing
structures or improvements. These soils should be removed and replaced as
compacted fill. Compressible soils at the site may include undocumented fills,
weathered fills or alluvial materials, collapsible alluvial soils, alluvial fan
deposits, or other soil subject to settlement under increased loads, wetting, or bio-
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degradation. The removal depths should be sufficient to expose dense alluvial
materials. The removal depths are anticipated to be 25 feet under structures in
areas of deep alluvial soils, in drainages, and in alluvial fans. The removal
envelope should extend horizontally 5 feet beyond the structure perimeter. In
areas of paving and hardscape, the depth of removal and recompaction may be
reduced to 2 feet. It should be noted that the lesser removal may result in
additional post construction settlement in the hardscape and paving areas. Such
settlement should be anticipated in the design of such facilities. The excavation
bottoms should be observed by Geotechnics Incorporated personnel to evaluate
Ithe need for additional removals.
( Expansive Soils: Remedial grading is recommended wherever shallow expansive
soils exist within proposed building pads and within exterior concrete flatwork
l areas and pavement areas. Expansive soils at the site would consist of clay fills or
l alluvial materials with an expansion index greater than 50. These soils should be
removed and replaced with compacted fill having an expansion index of 50 or
less. The replacement fill material should be compacted as recommended in this
r report.
Drainages: Several minor drainages cross the site or discharge onto the site. Any
soft or loose sediments that may have accumulated within the drainages should be
removed to a depth where competent materials are encountered. The excavations
should then be brought to finish grade with fill compacted in accordance with the
recommendations in this report.
Cut/Fill Transitions: Based on the final subgrade elevation there is a potential for
buildings to straddle a transition from medium dense or dense fill materials to
dense or very dense alluvial materials or bedrock. In general, structures should
not straddle cut/fill transitions. Typical mitigation involves over-excavation of
the cut portion of the building pads and replacing as compacted fill as discussed in
this report. The lateral extent of the remedial excavations for the cut/fill transition
should be determined during grading based on the observations made by
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1 After making the recommended removals for remedial grading and prior to fill
.placement, the exposed soils should be scarified to a depth of approximately 8
I
inches, brought to slightly above optimum moisture content, and compacted as
recommended in this report. Where the removals expose firm undisturbed
bedrock, scarifying and recompaction are not required. Removal bottoms should
be observed by Geotechnics Incorporated personnel during grading to confirm
j that dense undisturbed alluvial materials or bedrock capable of supporting the
proposed structures or fills are exposed.
8.3.4 Cut/Fill Transitions
Depending on the location of the proposed buildings, and the extent of removals,
the proposed structures may straddle materials with varying settlement potentials.
These conditions generally occur along or near transitions from fill to native
I materials or rock. Where transitions from dense alluvial materials or bedrock to
compacted fill will exist beneath building pads, we recommend that the cut
portion of any individual pad be overexcavated and replaced with compacted fill
to provide a relatively uniform compacted fill layer. Figure 4, Transition Details,
should be used as a general guideline in determining the over-excavation depths
below finish pad grade for individual pads. The over-excavation envelope should
extend horizontally 5 feet beyond the structure perimeter. The pad grade should
then be re-established with fill compacted as recommended in this report.
II 8.3.5 Expansive Soils
To reduce the potential for heave of finish grade, we recommend that soil having
an expansion index greater than 50 be removed from the upper 4 feet of finish
i building pad grade or the upper 2 feet of finish hardscaping subgrade. The
replacement material may consist of on-site alluvial soil or imported soil with an
expansion index less than 50, based on the guidelines of UBC Test Method 18-2
or ASTM D4829. The replacement material should be compacted as
recommended in this report.
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1 8.3.6 Structural Fill Material
iIn general, the on-site materials may be used in the required fills, less any rocks
larger than 6 inches in greatest dimension or unsuitable or deleterious materials
described previously. Soils that have an expansion index greater than 50 should
1 not be used within the upper 4 feet of finish building pad or within the upper 2
II feet of finish hardscaping subgrade. Soils that have an expansion index greater
than 20 should not be used as retaining wall backfill.
During grading operations, soil types other than those evaluated in the
geotechnical report may be encountered. Geotechnics should be notified to
evaluate the suitability of these soils for use as fill and as finish grade soils.
Imported fill sources, if needed, should be observed prior to hauling onto the site
fto determine the suitability for use. Representative samples of imported materials
and on-site soils should be tested by the geotechnical consultant to evaluate their
I engineering properties for the planned use. Imported fill soils should have an
expansion index of no more than 20.
8.3.7 Oversized Materials
Excavations in rock and alluvial fan materials may generate oversized material.
Oversized material is defined as rocks, boulders, or cemented soil clasts greater
than 6 inches in largest dimension. Based on the anticipated size of the fills,
locations for disposal of oversized material within the fills appears to be in the
drainages on the property and the deeper fills on the west and south portions of
the property. If oversize material cannot be placed in the fills, oversized materials
should be broken down to no greater than 6 inches in largest dimension for use in
fill, used as landscape material, or disposed off-site.
Oversized material (rocks larger than 6 inches in maximum dimension) may be
disposed of in windrows within the soil fill. The oversized material should be
limited to 4 feet in maximum dimension. Oversized materials should be placed in
windrows on the compacted fill or firm natural ground surface. Select native or
imported granular soil with a sand equivalent of 30 or higher should be placed and
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thoroughly flooded over and around all windrowed rock such that all voids are
filled. Windrows should be spaced laterally at least 15 feet, and vertically at least
j 5 feet. Placement of windrows should be staggered so that windrows
overlie each other. In general, windrows should be held back at least 15 feet from
j slope faces and at least 10 feet from finish grade. The hold down
n
recommendations could vary as locations of underground utilities dictate.
Oversized material should not be placed below areas where structures or deep
utilities are proposed. Where select granular soil is not available, oversize
material may be placed in individual pits with all the voids filled with
I I mechanically compacted soil.
I8.3.8 Keyways and Benching
Keyway and benching details are shown in Figure 5. Keyways should be
excavated at the toe of fill slopes under the observation of the geotechnical
J consultant. The minimum keyway width is 15 feet. The entire key should be
excavated into competent material and tilted towards the slope at an inclination of
2 percent or more. The exposed keyway should be scarified to a depth of
approximately 8 inches, brought to slightly above optimum moisture content, and
compacted prior to placing fill. Where the removals expose firm undisturbed
bedrock, scarifying and recompaction are not required. Excavated material that
is
free of unsuitable or deleterious materials may be re-used in compacted fills upon
evaluation by the geotechnical consultant.
Where fill is to be placed on surfaces inclined steeper than 5:1 (horizontal to
vertical), benches should be excavated to provide a relatively level surface for fill
placement. The benches should extend through any compressible materials to
expose competent material as evaluated by the geotechnical consultant. The
bench width should generally be adequate to expose 3 to 5 feet of competent
material in the vertical wall of the bench. The exposed bench bottoms should be
scarified to a depth of approximately 8 inches, brought to slightly above optimum
moisture content, and compacted prior to placing fill. Where the benches expose
firm undisturbed bedrock, scarifying and recompaction are not required.
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8.3.9 Subsurface Drainage Systems
We recommend that composite panel drains be installed where water seepage is
observed in slopes or conditions indicate potential for adverse seepage. Slope
drain details are shown in Figure 6. In cut slopes, the slope face should be over-
excavated to result in a temporary slope, no steeper than as evaluated by the
geotechnical consultant, and a keyway excavated to a minimum width of 8 feet.
The panel drain should be placed so that it covers the areas where seepage is
observed or anticipated. The location and extent of the subdrain should be
evaluated by the geotechnical consultant during grading. Headwalls should be
constructed at any subdrain outlets. Subdrain headwall details are shown in
Figure 7.
1 8.3.10 Fill Compaction
IAfter making the recommended removals and prior to fill placement, the exposed
ground surface should be observed by Geotechnics Incorporated. Any remaining
dry, loose, or soft materials should also be removed until a stable, unyielding
condition under equipment loads is achieved. The exposed ground surface should
be scarified to a depth of approximately 8 inches, brought to slightly above
optimum moisture content, and compacted to at least 90 percent of the maximum
dry density obtained using ASTM D1557 as a guideline. Where removals expose
firm undisturbed bedrock, scarifying and recompaction are not required.
All fill and backfill should be placed at slightly above optimum moisture content
using equipment that is capable of producing a uniformly compacted product
throughout the entire fill lift. Fill materials at less than optimum moisture should
have water added and the fill mixed to result in material that is uniformly above
optimum moisture content. Fill materials that are too wet should be aerated or
mixed with drier material to achieve uniformly moisture-conditioned soil. Except
for compaction around windrowed rock, flooding should not be permitted as a
method of compacting fill or back fill.
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The fill and backfill should be placed in horizontal lifts at a thickness appropriate
for the equipment spreading, mixing, and compacting the material, but generally
should not exceed 8 inches in loose thickness. The minimum relative compaction
recommended for fill and backfill is 90 percent of maximum dry density based on
the guidelines of ASTM D1557. The upper one foot of subgrade in asphalt
parking and driveway areas should be compacted to at least 95 percent of
I maximum dry density just prior to constructing the pavement section. Sufficient
observation and testing should be performed by Geotechnics Incorporated so that
an opinion can be rendered as to the compaction achieved.
8.3.11 Temporary Excavations
Temporary excavations are anticipated to be less than 25 feet in depth and are
expected to be stable provided they are laid back in accordance with our
recommendations or shored. All excavations should conform to Cal-OSHA
Iguidelines. Workers should be protected from falling rocks and caving soils in
accordance with Cal-OSHA requirements. Temporary excavations extending to a
depth of 3 feet or less may be made vertically. Temporary excavations up to 25
feet deep in compacted fill, colluvial soils, or alluvial soils should be laid back no
steeper than 1%2:1 (horizontal:vertical) or shored, prior to allowing workers to
enter. Temporary excavations up to 25 feet deep in intact undisturbed bedrock
should be laid back no steeper than '/4:1 (horizontal:vertical) or shored, prior to
allowing workers to enter. Should deeper temporary excavations be required,
Geotechnics Incorporated should be notified so that additional recommendations
j may be provided.
Where temporary excavations extend below a plane inclined at 1%2:1
(horizontal:vertical) downward from the outside bottom edge of adjacent existing
footings or improvements, shoring is recommended. Temporary excavations that
encounter seepage or other potentially adverse conditions should be evaluated by
the geotechnical consultant on a case-by-case basis during grading. Remedial
measures may include shoring, or reducing the inclination of the temporary slope.
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8.3.12 Lateral Pressures on Shoring
For temporary excavations that will be shored, but not braced with tiebacks or
struts, we recommend using a triangular pressure distribution for calculating earth
pressures. Cantilevered shoring design may be based on an equivalent fluid
pressure of 40 pcf for shoring of the alluvial soils, colluvial 'soils, or fills
(estimated safety factor of 1). In addition, shoring design should include any
groundwater pressures encountered in the excavation and any surcharge loads
resulting from loads placed above the excavation and within a 1:1 plane extending
upward from the base of the excavation. Should surcharge loads be anticipated,
or braced shoring be used, Geotechnics Incorporated should be contacted for
I
additional design parameters. For design of soldier piles, an allowable passive
pressure of 300 psf per foot of embedment up to a maximum of 2,000 psf may be
used for piles within the alluvial soils or fills (estimated safety factor of 1.5).
L Soldier piles should be spaced at least three pile diameters on center.
I
8.3.13 Bulk/Shrink Estimates
Based on estimated densities of compacted fills, the existing alluvial soils and
colluvial soils may shrink on the order of 5 to 15 percent when over-excavated
and recompacted. The bedrock may bulk on the order of 5 to 15 percent when
over-excavated and recompacted. It should be noted, however, that bulking and
shrinking potential can vary considerably based on the variability of the in-situ
densities of the materials in question. The figures for bulking and shrinkage
provided are engineers' opinions of the ranges of bulking and shrinkage, which
may occur and are not intended to be used to estimate the quantity of fill materials
required at the site.
8.3.14 Slopes
All slopes should be inclined no steeper than 2:1 (horizontal:vertical). The
surficial slope stability may be enhanced by providing good site drainage. The
site should be graded so that water from the surrounding areas is not allowed to
flow over the top of the slope. Diversion structures should be provided where
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necessary. Surface runoff should be confined to gunite-lined swales or other
appropriate devices to reduce the potential for erosion.
We recommend that slopes be planted with vegetation that will increase their
stability. Ice plant is generally not recommended. We recommend that
vegetation include woody plants, along with ground cover. All plants should be
adapted for growth in semi-arid climates with little or no irrigation. A landscape
I architect should be consulted in order to develop a specific planting palate
suitable for slope stabilization.
I
It should be recognized that the outer few feet of all slopes are susceptible to
gradual down-slope movements due to slope creep. This will affect hardscape
such as concrete slabs. We recommend that settlement sensitive hardscape not be
constructed within 5 feet of the top of slopes.
8.4 Surface Drainage
1
Foundation and slab performance depends greatly on how well the runoff waters drain
from the site. This is true both during construction and over the entire life of the
structure. The ground surface around structures should be graded so that water flows
I
rapidly away from the structures without ponding. The surface gradient needed to
achieve this depends on the prevailing landscape. In general, we recommend that
pavement and lawn areas within 5 feet of buildings slope away at gradients of at least 2
percent. Densely vegetated areas should have minimum gradients of at least 5 percent
away from buildings in the first 5 feet. Densely vegetated areas are considered those in
which the planting type and spacing are such that the flow of water is impeded.
Planters should be built so that water from them will not seep into the foundation, slab, or
pavement areas. Roof drainage should be channeled by pipe to storm drains, or
discharged at least 10 feet from buildings. Site irrigation should be limited to the
minimum necessary to sustain plants. Should excessive irrigation, surface water
intrusion, water line breaks, or unusually high rainfall occur, saturated zones or "perched"
groundwater may develop in the underlying soils.
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8.5 Foundation Recommendations
The foundation recommendations provided herein are considered generally consistent
with methods typically used in southern California. Other alternatives may be available.
Our recommendations are only minimum criteria based on geotechnical factors and
should not be considered a structural design, or to preclude more restrictive criteria of
i governing agencies or by the structural engineer. The design of the foundation system
should be performed by the project structural engineer, incorporating the geotechnical
parameters described herein and the requirements of applicable building codes.
i
Foundation excavations should be observed by Geotechnics Incorporated. Such
observations are essential to identify field conditions that differ from those anticipated
and to adjust designs to actual field conditions. Recommendations presented in this
Ireport are contingent upon Geotechnics Incorporated performing such services. Loose
soils at the bottom of foundations should be removed prior to placing steel and concrete.
I The following design parameters assume that the foundations for the proposed buildings
will consist of shallow spread footings or continuous wall footings bearing entirely on
i compacted fill soils with a low expansion potential (Expansion Index of 50 or less), on
dense, undisturbed alluvial materials, or on firm undisturbed weathered rock.
8.5.1 Conventional Foundations
Allowable Soil Bearing: 3,000 psf with a 500 psf increase per additional foot
of depth below the minimum depth and a 500 psf
increase per additional foot of width above the
minimum width to a maximum of 5,000 psf
(estimated factor of safety > 2). Allow a one-third
increase for short-term wind or seismic loads.
Minimum Footing Width: 18 inches.
Minimum Footing Depth: 24 inches below adjacent finish soil grade, building
slab, or pavement finish grade, whichever is lower.
Lateral Passive Resistance: 300 psf per foot of embedment in fills compacted as
recommended herein or embedment in dense,
undisturbed alluvial materials (estimated factor of
safety > 1.5). Allow a one-third increase for short-
term wind or seismic loads. The passive resistance
of the materials may be combined with the frictional
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resistance without reduction in evaluating the total
lateral resistance.
Coefficient of Friction: 0.35 between the bottom of slab and fills compacted
as recommended herein; or between the bottom of
footings and fills compacted as recommended
herein or dense undisturbed alluvial materials
(estimated factor of safety> 1.5).
Settlement: Foundations should be designed for 1-inch of
differential settlement over a distance of 40 feet.
Slope Setback: Minimum 8 feet between the outside bottom edge of
the footing and adjacent slope face.
Minimum Reinforcement: Two No. 4 bars at both top and bottom in
continuous footings. Actual required reinforcement
should be determined by the structural engineer.
I8.5.2 Drilled Piers or Deepened Spread Footings
I The following design parameters assume that the foundations will be embedded in
compacted fill, in dense undisturbed alluvial material, or in rock. For cast-in-
place concrete piers, uplift loads may be resisted by friction acting along the
surface area of the pier,plus the weight of the pier. For deepened spread footings,
uplift loads may be resisted by the weight of the footing and the weight of the
compacted backfill overlying the footing. A one-third increase in the soil bearing,
frictional uplift, and passive pressure values may be used for short-term wind or
seismic loads.
Allowable Soil Bearing: 3,000 psf with a 500 psf increase per additional foot of
depth below the minimum depth and a 500 psf increase
per additional foot of width above the minimum width
to a maximum of 5,000 psf(estimated factor of safety>
2). Allow a one-third increase for short-term wind or
seismic loads.
Minimum Diameter/Width: 18 inches.
Minimum Depth: 24 inches below lowest adjacent grade.
Soil Unit Weight: 120 pcf.
Frictional Pier Uplift: 100 psf along perimeter of pier below a depth of 2
feet.
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Passive Pressure: 300 psf per foot of embedment based on an
estimated lateral deflection up to '/2-inch.
I Differential Settlement: %-inch between adjacent piers or footings.
8.6 Slope Setback
,r Foundation setbacks should conform to Figure 184-1 of the 2001 CBC. In general, the
foundations for all structures should be setback from descending slopes a minimum of 8
feet measured horizontally from the outside bottom edge of the footing to the slope face.
The recommended foundation setback for structures located near the tops of slopes may
be achieved by deepening the foundation. A 5-foot foundation setback may be used for
Iutility structures situated near minor slopes less than 4 feet in height and for screen wall
foundations .
i
8.7 CBC Seismic Parameters
1
The following seismic parameters may be used for structural design. They are based on a
1 site-to-fault distance of 5.0 kilometers scaled from fault maps (CDMG, 1998) intended
for use in conjunction with the 2001 CBC.
Seismic Zone Factor, Z: 0.4
Seismic Source Type: B (Glen Ivy, Elsinore fault at approximately 5.0 km)
Soil Profile Type: So (filled areas over colluvium and alluvium)
Seismic Coefficients, C,,: 0.44N„
G: 0.64Nv
Near-Source Factors, N,,: 1.0
Nv: 1.2
Soil Profile Type: SB (cut areas in rock)
Seismic Coefficients, C,: 0.40N„
Cv: 0.40N,
Near-Source Factors, N,,: 1.0
Nv: 1.2
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8.8 Building Settlements
If remedial grading is performed in accordance with the recommendations of this report,
it is anticipated that the long term settlement of the structures founded on compacted fill
i
overlying the older alluvial soils may range from 1 to 4 inches depending on the depth of
the alluvial soils and depth to groundwater.
8.9 Interior Building Slabs
Building slabs should be supported by compacted fill prepared as recommended in this
report and having a low expansion potential (Expansion Index less than 50). Slabs
rshould be designed for the anticipated loading. If an elastic design is used, a modulus of
subgrade reaction of 200 lbs/in3 may be used. Slab thickness, control joints and
reinforcement should be designed by the project structural engineer and should conform
to the requirements of the 2001 CBC and with the recommendations contained in the
1 current American Concrete Institute (ACI) Guide for Concrete Floor and Slab
Construction (ACI 302.1R-04). We recommend that building slabs be at least 5'/2 inches
in thickness and reinforced with at least No. 4 bars spaced 18 inches on center, each way,
placed within the upper 1/3 of the slab thickness with a minimum cover of 1'/2 inches.
The expansion index of the soils within the upper 5 feet should be confirmed by
completing expansion index testing during grading. Pavement section recommendations
for driveway slabs are provided in section 8.11.
8.9.1 Moisture Protection for Interior Slabs
Concrete slabs constructed on soil ultimately cause the moisture content to rise in
the underlying soil. This results from continued capillary rise and the termination
of normal evapotranspiration. Because normal concrete is permeable, the
moisture will eventually penetrate the slab. Excessive moisture may cause
mildewed carpets, lifting or discoloration of floor tiles, or similar problems. To
decrease the likelihood of problems related to damp slabs, suitable moisture
protection measures should be used where moisture sensitive floor coverings,
moisture sensitive equipment, or other factors warrant.
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1
8.9.1.1 Commonly Used Method
A commonly used moisture protection in southern California consists of
about 2 inches of clean sand covered by at least 10-mil plastic sheeting. In
addition, 2 inches of clean sand are placed over the plastic to decrease
concrete curing problems associated with placing concrete directly on an
impermeable membrane. However, it has been our experience that such
systems will transmit from approximately 6 to 12 pounds of moisture per
1000 square feet of floor per day. This transmission rate maybe excessive
for some applications, particularly for sheet vinyl, wood flooring, vinyl
tiles, or carpeting with impermeable backing that use water-soluble
Iadhesives, and may void manufacturers' warranties. The moisture
protection system described above is provided only as an example, and is
not intended as a recommendation for a specific moisture protection
system.
8.9.1.2 Current ACI 302 Recommendations
The current ACI Guide for Concrete Floor and Slab Construction, ACI
302.1R-04, provides detailed recommendations regarding moisture
protection systems. In general, ACI 302-1R-04 defines a vapor retarder as
having a water transmission rate of less then 0.3 perms when tested in
accordance with ASTM E 96, and defines a vapor barrier as having a
! water transmission rate of 0.00 perms. In addition, the vapor retarder
should conform to the ASTM E 1745 guidelines and if a polyethylene
plastic sheeting is used, it should be a minimum of 10-mil.
I
Based on a review of ACI 302-1R-04, the moisture protection may consist
of placing a 10-mil polyethylene plastic sheeting vapor retarder over
compacted subgrade. If necessary, 2 inches of a granular base material
may be placed beneath the polyethylene plastic sheeting to provide a level
surface. The vapor retarder should be placed in accordance with ASTM E
1643 guidelines. All laps or seams should be overlapped a minimum of 6
inches or as recommended by the manufacturer. Joints and penetrations
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should be sealed with the manufacturer's recommended adhesive, pressure
sensitive tape or both. The granular base material should be a clean, fine
graded material with at least 10 to 30% of particles passing No. 100 sieve
but not contaminated with clay, silt, or organic material. The granular
material should be compacted and proof-rolled prior to placement of the
i
vapor retarder. The vapor retarder should be protected from puncture and
if damaged be repaired per the manufacturer's recommendations. It
L should be noted that placing concrete directly on a low permeable
membrane may result in finishing delays. To help speed up the potential
finishing delay times and to reduce the potential for curl of the slab, we
recommend that the concrete mix be designed for a water cement ratio of
between 0.45 and 0.48.
fRegardless of the moisture protection method used, the vapor
l retarderibarrier should extend beneath all foundation elements and grade
( beams. In addition, it has been shown the lateral migration of water from
i foundation edges contributes significantly to moisture problems. The
r membrane should extend above soils grade around the structure's
perimeter, and the exposed foundation face should be painted with a latex
sealer prior to color coat.
The project architect should review the ACI 302.1R-04 document along
with the moisture requirements of the proposed flooring system and
incorporate an appropriate level of moisture protection as part of the floor
covering design. For example, moisture sensitive floor coverings such as
vinyl may develop discoloration or adhesive degradation due to excessive
moisture transmission. Wood flooring may swell and dome if exposed to
excessive moisture transmission. In such cases, the architect should
specify an appropriate moisture barrier based on the allowable moisture
i
transmission rate for the flooring to be used. This may include placing a
vapor barrier (with a maximum water vapor transmission rate of 0 perms)
and/or waterproofing the slab instead of a vapor retarder. In addition,
Geotechnics Incorporated can be contacted for further recommendations
for below-slab barriers and concrete placement.
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8.9.2 Exterior Slabs
Exterior slabs should be supported by granitic rock or compacted fill prepared as
recommended in this report and having a low expansion potential. Slabs should
II be designed for the anticipated loading. We recommend that exterior slabs be at
i
least 4 inches thick and reinforced with at least 6-inch by 6-inch, W2.9 by W2.9
welded wire fabric placed near the top of the slab with at least 1% inches of cover.
Crack control joints should be used on all exterior slabs. A maximum joint
f spacing of 5-foot centers each way for sidewalks and 10-foot centers each way for
slabs is suggested. Actual crack control joint spacing should be designed by the
project structural engineer or architect in conformance with the requirements of
f the 2001 CBC and the PCA Engineering Bulletin for Concrete Floors on Ground.
Differential movement between buildings and slabs, or between sidewalks and
curbs may be decreased by doweling the slab into the foundation or curb.
Exterior slabs constructed directly on expansive soils may experience movement
and cracking. One inch of differential movement is not consid
ered unusual, and
r more is possible. Differential movement and cracking may be decreased by
replacing the surficial two feet of expansive subgrade with low expansive (EI less
than 50) soil. Reinforcement and control joints will also help to -reduce the
cracking and movement potential. Differential movement between build
ings and
exterior slabs or between sidewalks and curbs may be decreased by dowelling the
slabs into the foundations or curbs.
I
8.10 Earth-Retaining Structures
Retaining walls should be designed by the project structural engineer, using the following
soil parameters. These soil parameters assume that retaining walls will be backfilled
with granular,free-draining sandy soils or rock having an expansion index of 20 or less
and compacted as recommended herein.
Active Earth Pressure: Equivalent fluid pressure of 35 pcf for level backfill
or 60 pcf for 2:1 sloping backfill. Assumes walls
are free to yield at the top at least 0.2% of the wall
height.
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At-Rest Earth Pressure: 60 pcf for level backfill or 70 pcf for 2:1 sloping
backfill. Assumes walls are restrained against
movement.
For design of mechanically stabilized earth walls (MSE walls), also referred to as gravity
walls, the following soil parameters may be used for the reinforced earth zone.
i
Friction Angle: 32°
Cohesion: 0 psf
Moist Unit Weight: 120 pcf
I
j In addition to the recommended earth pressure, walls adjacent to vehicular traffic should
be designed to resist a uniform lateral pressure of 100 psf, acting as a result of an
iassumed 300 psf surcharge behind the wall. If the traffic is kept back at least ten feet
from the walls, the traffic surcharge may be neglected.
Lateral loads on retainingwalls may be resisted b friction and b the passive resistance
Y Y Y
1 of the supporting soils in front of the wall. For retaining walls, a coefficient of friction of
0.35 (estimated factor of safety > 1.5) may be used between the bottom of footings and
I compacted fill or undisturbed dense alluvial soil. The passive resistance of compacted
fill may be assumed to be equal to the pressure developed by a fluid with a density of 300
pcf for the portion of vertical foundation members embedded into compacted fill or
undisturbed dense alluvial soil (estimated factor of safety > 1.5). A one-third increase in
the passive values may be used for wind or seismic loads. The passive resistance of the
materials may be combined with the frictional resistance without reduction in evaluating
the total lateral resistance.
The above pressures assume no hydrostatic pressures or surcharge loads, which will
increase the lateral pressures on the wall. Geotechnics should be contacted for additional
recommendations if hydrostatic or surcharge pressures are applicable. Walls should
contain an adequate subdrain to minimize hydrostatic forces. Wall drain details for
cantilevered retaining walls are presented in_Wall Drain Details, Figure 8. Wall drain
details for gravity walls (MSE walls) are given in Figure 9.
Backfilling retaining walls with expansive soils can increase lateral pressures well
beyond the active or at-rest pressures indicated above. We recommend that retaining
walls be backfilled with free-draining, cohesionless soil (sand, gravel, or rock) having an
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expansion index of 20 or less. The backfill area should include the zone defined by a 1:1
plane projected upward from the heel of the wall. Retaining wall backfill or MSE wall
reinforced wall fill should be compacted to at least 90 percent relative compaction, based
on ASTM D1557 guidelines. Backfill should not be placed until walls have achieved
I adequate structural strength. Heavy compaction equipment, which could cause distress to
I walls, should not be used.
8.11 Pipelines
The proposed improvements will likely include storm drain, sanitary sewer, and water
pipelines, as well as gas, electrical, and communication utilities. Geotechnical aspects of
( pipeline design include lateral earth pressures for thrust blocks, modulus of soil reaction,
and pipe bedding.
I8.11.1 Thrust Blocks
ILateral resistance for thrust blocks may be determined by a passive pressure value
I of 300 psf for every foot of embedment assuming a triangular pressure
distribution. This value may be used for thrust blocks embedded in either
compacted fill or dense alluvial materials. A coefficient of friction of 0.35 may
be used between the bottom of thrust blocks and compacted fill or dense alluvial
material. A one-third increase in the passive values may be used for intermittent
loading.
I
8.11.2 Modulus of Soil Reaction
The modulus of soil reaction (E') is used to characterize the stiffness of soil
backfill placed along the sides of buried flexible pipelines. For evaluating
deflection due to the load associated with trench backfill'over the pipe, a value of
2,000 lbs/in2 is recommended for the general site conditions assuming granular
bedding material is placed adjacent to the pipe.
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8.11.3 Pipe Bedding
Typical pipe bedding as specified in the "GREENBOOK" may be used for
underground pipelines. We recommend that pipes be supported on at least 4
inches of granular bedding material. Where pipeline or trench excavation
inclinations exceed 15 percent, we do not recommend that open graded rock be
I used for pipe bedding or backfill because of the potential for piping and internal
erosion of the overlying backfill. The recommended bedding is coarse sand
having a sand equivalent greater than 30. Alternatively, sand-cement slurry can
be used for the bedding. The slurry should consist of at least a 2-sack mix having
a slump no greater than 5 inches. If the sand-cement slurry is used for the pipe
bedding to at least 1 foot over the top of the pipe, cut-off walls may not be
considered necessary. This recommendation should be further evaluated by the
project civil engineer designing the pipe system.
8.12 Pavements
I Preliminary pavement sections are provided for new pavements that will be associated
with the proposed improvements. Final pavement design should be based on R-value test
results of the finish pavement subgrade soils. Subgrade preparation should be conducted
I immediately prior to the placement of the pavement section. Prior to paving the site, the
exposed pavement subgrade should be scarified 12 inches, brought to approximately
optimum moisture content, and compacted. Aggregate base and the upper 12 inches of
subgrade soil should be compacted to at least 95 percent of the maximum dry density,
determined in general accordance with ASTM D1557. Aggregate base materials should
conform to Class 2 aggregate base as defined in Section 26 of the latest edition of the
Caltrans Standard Specifications. Alternatively, base material should conform to the
specifications for crushed aggregate base, crushed miscellaneous base, or processed
miscellaneous base as defined in Section 200-2 of the latest edition of the Standard
Specifications for Public Works Construction, "GREENBOOK."
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8.12.1 Asphalt Concrete
The paving sections for driveways were established using the design criteria of
Caltrans Topic 608.4. Three traffic types were assumed for the design of asphalt
concrete pavements: automobile parking areas (Traffic Index = 4.5), driveways
and bus/fire lanes (Traffic Index = 6.0), and areas where fire trucks and heavy
delivery trucks may be positioned or loaded (Traffic Index = 8.5). Laboratory
testing of a sample of the on-site soils indicate an R-value of 45. Based on the
indicated Traffic Indexes and a design R-value of 40, the following pavement
sections were estimated in accordance with the Caltrans design method.
Traffic Index Asphalt Concrete Aggregate Base
4.5 3 inches 4 inches
I 6.0 4 inches 5 inches
1 8.5 5 inches 9 inches
Hardscape areas with no vehicular traffic may be paved with 3 inches of full-
depth asphalt concrete.
Asphalt concrete should conform to Section 203-6 of the "GREENBOOK"
specifications. Asphalt concrete should be compacted to at least 95 percent based
on the Hveem unit weight.
8.12.2 Portland Cement Concrete
Concrete pavement design was conducted in accordance with the simplified
design procedure of the Portland Cement Association. This methodology is based
on a 20-year design life. For design, it was assumed that aggregate interlock
joints will be used for load transfer across control joints. The Portland Cement
Concrete was assumed to have a minimum 28-day flexural strength of 600 psi. A
"medium" subgrade support (corresponding to a modulus of subgrade reaction
between 130 and 170 pci) was assumed for design purposes. Based on these
assumptions, we recommend that the pavement section consist of 6 inches of
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Portland cement concrete over 4 inches of aggregate base over the compacted
subgrade. Crack control joints should be placed on at least 10-foot centers, each
way. Concentrated truck traffic areas, such as trash truck aprons, should be
reinforced with at least number 4 bars on 24-inch centers, each way.
8.13 Soil Corrosivity
Selected soil samples were evaluated for water-soluble sulfate content to assess the
general degree of sulfate exposure of concrete in contact with the site soils. The test
results are presented in Appendix C. The project design engineer may use the test results
in conjunction with Table 19-A-4 of the 2001 CBC to specify a suitable cement type,
water cement ratio, and minimum compressive strength for concrete used on site, which
will be in direct contact with soil, including all foundations and slabs. Additional testing
of the finish grade materials should be performed to evaluate the final as-graded
condition of the site. It should be noted that soluble sulfate in the irrigation water supply,
and/or the use of sulfate containing fertilizer may cause the sulfate content in the surficial
soils to increase significantly with time. This may result in a higher sulfate exposure than
that indicated by the test results reported herein. Studies have shown that the use of
improved cements in the concrete, and a low water-cement ratio will improve the
resistance of the concrete to sulfate exposure.
Based on the resistivity test results, the on-site soils appear to be mildly corrosive to
ferrous metals. Based on the results of the soluble chloride test results, the on-site soils
I
do not appear to be significantly corrosive to metal. A corrosion consultant should be
contacted to provide specific corrosion control recommendations.
9 LIMITATIONS OF INVESTIGATION
This report has been prepared for the exclusive use of Castle and Cooke, for specific application
to the proposed Outlet Mall Expansion at Nichols Road in Lake Elsinore, California. The
recommendations provided in this report are based on our understanding of the described project
information and on our interpretation of the data collected during the subsurface exploration.
The recommendations apply only to the specific project described in this report. In the event that
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PAGE 37
any changes in the nature, design, or location of the facilities are planned from those described
herein, the conclusions and recommendations contained in this report should not be considered
valid unless the changes are reviewed and conclusions of this report modified or verified in
writing by Geotechnics Incorporated. Geotechnics Incorporated is not responsible for any
claims, damages, or liability associated with interpretation of subsurface data or reuse of the
subsurface data or engineering analyses without the express written authorization of Geotechnics
Incorporated.
This investigation was performed using the degree of care and skill ordinarily exercised, under
similar circumstances, by reputable geotechnical consultants practicing in this or similar
localities. No warranty, express or implied, is made as to the conclusions and professional
opinions included in this report.
IThe analyses and recommendations contained in this report are based on the data obtained from
the referenced subsurface explorations. The samples taken and used for testing and the
observations made are believed representative of the locations sampled; however, test pits and
borings indicate subsurface conditions only at the specific locations and times, and only to the
I depths penetrated. They do not necessarily reflect strata variations that may exist between such
locations. Soil and geologic conditions can vary significantly between field explorations. The
validity of the recommendations is based in part on assumptions about the stratigraphy made by
the geotechnical engineer. Such assumptions may be confirmed only during construction
operations. In many projects, conditions revealed by excavation may be at variance with
preliminary findings. If this occurs, the changed conditions must be evaluated by Geotechnics
Incorporated and additional recommendations made, if warranted.
This report is issued with the understanding that it is the responsibility of Castle and Cooke, or of
their designated representative, to ensure that the information and recommendations contained
herein are brought to the attention of the design consultants for the project and incorporated into
the plans, and the necessary steps are taken to see that the contractors carry out such
recommendations in the field.
Changes in the condition of a property can occur with the passage of time, whether due to natural
processes or the work of man on this or adjacent properties. In addition, changes in applicable or
appropriate standards of practice may occur from legislation or the broadening of knowledge.
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I
Accordingly, the findings of this report may be invalidated wholly or partially by changes
outside our control. Therefore, this report is subject to review and should not be relied upon
jj after a period of three years.
During site preparation and foundation construction, Geotechnics Incorporated should observe
slab on-grade subgrades, wall backfill, and utility trench backfill to check compaction. The
engineer should observe subgrade preparation beneath areas to be recompacted, and observe and
i;
i -- test fill compaction as required. The engineer should also observe building-foundation
excavations to verify the presence of a firm bearing surface.
Geotechnics Incorporated should be retained to observe earthwork construction to help confirm
that our assumptions and recommendations are valid or to modify them accordingly.
Geotechnics Incorporated does not assume responsibility or liability for the adequacy of the
geotechnical recommendations presented herein if we do not observe construction.
GEOTECHNICS INCORPORATED
i
John R. Theissen, P.E. 28313, G.E. 825 W.ALce Van erhurst, C.E.G. 1125
Principal Principal
NAC GF
No. 825 11 w.LEE °c
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a wmia s,Ladd,silre.ada And sanl(o Fmmmi.ns `� .'�-`;.1- „NJ:'• 't• "'�ii�- ~:j r�•`•` �1,•.' r '`'� - -`tQ,',-__I„ ':`.-• =`'•.• to - _ .
W ON undivided allwlum and[11-mm ✓ '•/� j.1, •_ Is A Q e �1� ., _ �1 '� O
(not 1 ',� {\ r• f_ l ) S.
seporoled) < -' Z � �•,•7.JlJt / � .Y�.. �• \.,� _ ' .' ;' y ��
Oo/! stAam enannek a) Q T�t i- �•�< �l�'� '1. `� _h' <�ji/ :i<.� )JPv/e A ,f .�i`s.3�a.
•1.
Trapu[o,WAlyma and LOaa Farmal Dnsl net lml.d led) O OR •Fans }•�•�'- =•� - ��•••� * � j _ �'
i:e qc y olotale Wines 1.eloe:.n lne - - .� ,•�p� - s, -`�L' ..,11�_�i..d1/-''-' r• /.. 1_ � �.r'; ? •
.n m ol. Flora pmins Dnd valley nll 7��• �'� i , / \ i �i pr—;
Gandvr0 , ,•. 1�✓ 1 _`, . i r �(I1'•�131 Stiqhlly old,,(largely in..lrre) '"^E /� y�-':• -���. •- � ' ��E A.
R csa Df the bammiln of rpumern edrmrma unaindm 'b (/,�. •,.j'f'•' (�" 'S• F. t' • ���Q7. 1 -... •�7 f•' .
111 Holoc,yslalllne rocks ` ,76i",11Sgj• r, �-- t' _ :e ..-1�/ - I•q, Silieic to mlErmedinle cks Iquarlp dlari le, a Slream Ch•nneh �+ , -I:{ •• - i -•
gronatlrprlle,q,onile I?I I /'; 1 ✓' / �,� ,,. �. •.b•1 ' I
lnler mearale r cE. (dmr(l•;may Include. /. l-. ,���{T.w�I�'1.71{. .7r•' . • mil �{• / , .Ktl guarl<dran ile 1, a•'• 011 Fans •�j 1 /���/ ';} - 1 •('• ,. ..
!•��.' �,� :r. •der\ .i, per/ i J�tr•
•eb mnlrmeaiare m ea.ie ra[E.(gaeero: a Flood mala.and valley un - . I : .^I*?.mop !ncwae..am.aID.He). ey / i
nyh xINISAN•-dkduaMAtbma.prloe„4. Eo.•Da_ or Lp[a.nme / � i ' • \/'c :i r .per It / 4- L(]�.•'
da
RWI
-Iz)PIl hy.ific-oypah....1 raoEs 1 dw :k• •t. J // .. .1 - •1 .'l�� '(--�
ED (al Older t•PInIa U,dls.e°'!aJQ//
Ow undivided"ellplde.same i.d,ce•tleaasitsl. `^ J 1 -
Op°-gr(Drlwelp•Ry granilre dehris) i•� / �r { _ __ •� CIS
San.P. l4M vakanics aM at alner melarolconic and ♦ '" ••(,� . - r �j�j' / F:=s=.-' O
metPp°'okoille rocYs Q Slream cnonnels _., -- •_�� -y,. ' \,• I •'•,A!• cn
cn
O F1ows,11D•beccia s,1u11.;mostly ' ''s--`•y •1•,.may,S�• 'p•1 'r I - - �• ,ondesil ic. Ool Fans;In..dts Oalg Iprin0.1.y ....is hdisl, 1 / • - ,/ .,, - , - •r'•'1 ^
Oply Im.re.o,cun cl,one COIm ImelaseD,menno.yl �• s r 1 i••�I
I Jsa I HYdrpinermally Dllered Js - t t ' 1 �y,C.sT p'�•
L—J OOr Flood PlDins and valley fill / - - 11 • •nOa^i': ! !e-^4
r-j In lr�sr•.ra[\.,arm,,ally lalrle Dad ( / I n, �,•. - e'I - - O
1"•( 0acr1!.rehrr. 101 Oet CDllvrium 1 � .`I ; •`I ... - •�111y' ,
Farmalian Ond equiv enl ra[hs •10O'�00' •1 / F3 • J r ,
II7 Melasedimenlnr Oe..;am[ gal-apprpaimple lo-W1.age, sn led Irum rrq oral geclaarc l,n l",e /
I. JO quart...[common. iDo11y slave. / .,�
Sadf.,d CLnyan •jl. / F• • • �'•' / -I)+6- N , '_(�j� " - •J, - 4J 1••1
/ , .,\ ••y/ K _ - �'�1'R '7• `- Y =. +� �i
I ( -•^ \< \
m • i .. P 1 • may_a"_yi
pus 1n e,o ,Da.nv separdred dam stale .. '',):J ja,• .:_'--< .J , -• !,-! O
REFERENCE- "Geology of Elsinore and Chino Fault Zones, and Environs, -'� •'. r 1'.: 1
Northwestern Riverside County, California",
F. Harold Webber, DMG Open File Report 77-4, 1977.
_ll co
C
SaTiGaYRlanoFaultZort r •h. �\ / Q^� �o v \ \ �1 '` Z
_ t ^b
_ s ,,erg � �_ � ,\ \ ++
Y — c_ l �` \c,� �I �. / �`� /•,�"• -t i r\�alf •r `'��r:�� _ 1 �id� \ o.� ?i \ 1 O O
VltNa- Point FaultCL
Fsi+nZone. C fongBFeullZone
"S� — +f�-• Fault ` -
i Fa no
34' or
a�—`• � Brawley
yA ��... Elmore Ranch Seism
ic1 }
1) \ \\ \ / \ \ 9g / •/ qj. FaylCZone Zone --
4eell
'm�
LL
\\`\ •� \` \ \ \\ �.\ ` \ �\ \ ` \ \mm� to ._\ : -`- j A%'\VF
for
0
NOTATIONS ),_\\ till\� �`�' \, /�a�F �. \�•�.. �a��,?o� 4�0: '
Holocene fault displacement(during pest 10,000 years)without historic IN \ 1 \ �• \�' �l�\� �N ° 'd
—_ record. Geomorphic evidence for Holocene faulting includes sag ponds,scarps \ `\ \ I� r oe
showing little erosion,or the following features in Holocene age deposits:offset
stream courses,linear scarps,shutter ridges �\and triangular faceted spurs. \ \
i
Recency of faulting onshore is based on the interpreted age of the youngest Cd
strata displaced by faulting. `\``\, ` `\ \� ,\\\� 1` \\ � , I I ��� � � i,••I
Late Quatemary fault dis lacement(during past 700,000 years).
Geomor hic evidence Simi ar to that described for Holocene faults except I \ \\\"I \ \�� \ A t4 �
-• -.._._,_ - features are less distinct. Faulting may be younger,but lack of younger overlying
deposits precludes more accurate age classification.
Quatemary fault(age undifferentiated). Most faults of this category show \�, \` \�
evidence of displacement sometime during the past 1.6 million years;possible p 1 \\ \ \ ` \ \ i; \
exceptions are faults that displace rocks of undifferentiated Plio-Pleistocene age. I `�\\ .� \ ` `� \ \ �, 1-4
See Bulletin 201,Appendix D for source data.
Late Cenozoic faults within the Sierra Nevada Including,but not restricted �� \\��� n�, `� \ r�
to,the Foothills fault system. Faults show stratigraphic and/or geomorphic ` ` \ \ v�/k evidence for displacement of late Miocene and Pliocene deposits. By analogy, ��
late Cenozoic faults in this system that have been investigated in detail may have
been active in Quaternary time(Data from PG&.E,1993.) -r�� ( h" REFERENCES:
0 10 20 30 40 50 60 `� 1 " Reproduced with permission, Division of Mines and Geology, CD-ROM 2000-006
Pre-Quatemary faun(older than a million years)or show in thi (2000), Digital Database of faults from the Fault Activity Map of California and
-- recognized Quaternary displacement. Some faults are shown in this category SCALE(KM) Adjacent Areas. IBID(1994),Selected Faults in Northern Baja California,
because the source of mapping used was of reconnaissance nature,or was not Offshore, and the Adjacent Southern California Area.
done with the object of dating fault displacements. Faults In this category are not
necessarily inactive.
\Drafting\CorelDraw\Fault-SD Rev.09/03
CASE 1.0
- - - - -- -� FILL
RIP 12 INCHES, _ __ 3 FEET -- '---
WATER, COMPACT (MAXIMUM) FORMATION
CASE 2.0
2% SLOPE - —s-'--
--- � - � -- --___ FILL
OVER-EXCAVATE TRANSITION
TO A DEPTH OF H/2 (MINIMUM OF 3 FEET H>3 FEET FORMATION
OR 2 FEET BELOW BOTTOM OF FOOTING)
CASE 3.0
H> 3 FEET
2% SLOPE —> _
_ FILL
OVER-EXCAVATE TRANSITION
TO A DEPTH OF H/2(MINIMUM OF 3 FEET OR
2 FEET BELOW BOTTOM OF FOOTING) FORMATION
Aft-`G e o t e c h n i c s Project No. 0860-002-00
Incorporated
TRANSITION DETAILS Document No. 05-0597
FIGURE 4
\Drafting\CoreIDraw\Overex-a Rev. 1/00
FILL OVER NATURAL SLOPE
SURFACE OF FIRM
FORMATION
FINISH FILL SLOPE
00
�4' TYPICAL
NATURAL SLOPE
-' 10'TYPICAL
I' I
15' MINIMUM (INCLINED 2
MINIMUM INTO SLOPE)
FILL OVER CUT SLOPE
SURFACE OF FIRM
FORMATION
FINISH FILL SLOPE -
�4' TYPICAL
FINISH CUT SLOPE
_ -- 10' TYPICAL
-
15' MINIMUM (INCLINED 2%
MINIMUM INTO SLOPE)
G e o t e c h n i c s Project No. 0860-002-00
Incorporated SLOPE CONSTRUCTION Document No. 05-0597
DETAILS
FIGURE 5
\Drafting\CorelDrawlSlope Construction Rev.5/03
MINIMUM 6-INCHES /
OF SOIL COVER /
/
0010
RECONSTRUCTED
SLOPE
/
/
/
2
1 - /
/ GEOCOMPOSITE PANEL DRAIN
(FABRIC SIDE FACING WATER SOURCE) DIRECTION OF
SEEPAGE FLOW
MINUS 3/4-INCH CRUSHED ROCK
(1 CUBIC FOOT PER LINEAR FOOT)
4-INCH DIAM. PVC
12-INCHES - - PERFORATED PIPE
MINIMUM
KEYWAY BOTTOM-
12-INCHES 2-INCHES OF CRUSHED ROCK
MINIMUM BELOW PERFORATED PIPE
NOTES
1) Geocomposite panel drain should consist of Miradrain 6000, J-DRain 400, Supac DS-15, or
approved similar product.
2) Splices in panels should be as recommended by the manufacturer. Interlocking type panels
should be overlapped at least 6 inches. Non-interlocking type should overlap at least 12 inches.
3) Perforated pipe should outlet through a solid pipe to a free gravity outfall. Perforated pipe and outlet
pipe should have a fall of at least 1%.
4) As an alternative, a one foot thick, continuous blanket of minus 3/4-inch crushed rock may be used
in place of the composite panel drain. The rock should be completely surrounded by filter fabric.
5) Drain installation should be observed by the geotechnical consultant prior to backfilling.
G e o t e c h n i c s Project No. 0860-002-00
SLOPE DRAIN DETAIL Document No. 05-0597
Incorporated
;I
FIGURE 6
Rev.6/00
A'
NO. 3 REBAR WITH
90 DEGREE BEND
4 TO 8 INCH DIAMETER
SUBDRAIN OUTLET PIPE -
(WITH ''/<-INCH STAINLESS
STEEL MESH COVER) s 0.
b t 00
4" ' .
d 4
� r r
Y�
*c f it
18"
A
SECTION A-A "411
SOIL BACKFILL
24„
SOIL
100
i
u
12"
,G e o t e c h n i c s Project No. 0860-002-00
Incorporated SUBDRAIN HEADWALL DETAILS Document Number 05-0597
FIGURE 7
UraftinglCorelDraMHeadwall Rev.4/03
DAMP-PROOFING OR WATER-
PROOFING-AS REQUIRED
ROCK AND FABRIC
ALTERNATIVE \
COMFAGTED•
BAGKFILL' • ' ' a.
o _ 12-INCH
MINIMUM
MINUS 3/4-INCH CRUSHED ROCK _ o0
ENVELOPED IN FILTER FABRIC WEEP-HOLE
(MIRAFI 140NL, SUPAC 4NP, OR oa ALTERNATIVE
APPROVED SIMILAR) o ��
oe'
0
4-INCH DIAM. PVC
PERFORATED PIPE
DAMP-PROOFING OR WATER-
PROOFING AS REQUIRED
'i
GEOCOMPOSITE � /
PANEL DRAIN PANEL DRAIN
ALTERNATIVE
V.CQMPACTEll
6AGKFILL-
1 CU. FT. PER LINEAR FOOT OF WEEP-HOLE
MINUS 3/4-INCH CRUSHED ALTERNATIVE
ROCK ENVELOPED IN ------
FILTER FABRIC
ii i -
••off
4-INCH DIAM. PVC
PERFORATED PIPE
NOTES
1) Perforated pipe should outlet through a solid pipe to a free gravity outfall. Perforated pipe and outlet
pipe should have a fall of at least 1%.
2) As an alternative to the perforated pipe and outlet, weep-holes may be constructed. Weep-holes
should be at least 2 inches in diameter, spaced no greater than 8 feet, and be located just above
grade at the bottom of wall.
3) Filter fabric should consist of Mirafi 140N, Supac 5NP, Amoco 4599, or similar approved fabric.
Filter fabric should be overlapped at least 6-inches.
4) Geocomposite panel drain should consist of Miradrain 6000, J-DRain 400, Supac DS-15, or
approved similar product.
5) Drain installation should be observed by the geotechnical consultant prior to backfilling.
AdIft, G e o t e c h n i c s Project No. 0860-002-00
Incorporated
WALL DRAIN DETAILS Document No. 05-0597
FIGURE 8
\Drafting\Core1Draw\Wa11drn Rev.6/99
1
r
IE
If
J
I
WHEN RECOMMENDED BY
GEOTECHNICS INCORPORATED
12-INCH MIN INTERCEPTOR DRAIN CONSISTING
OF GEOCOMPOSITE PANEL OR
CRUSHED ROCK BLANKET
FILTER FABRIC(TYP.) (SEE DETAIL)o -
A --
GEOSYNTHETIC REINFORCEMENT
i` (DESIGNED BY OTHERS) _ f
HEIGHT OF DRAIN
EQUAL TO 2/3 HEIGHT
OF WALL
1
l 4-INCH DIAMETER PERFORATED '
PIPE,ABS OR PVC
GRAVEL COLLECTOR - -
WITH PIPE
APPROXIMATE-
1,CO FT PE]A LI NEAR_FOOT OF MINUS 314-INCH
IrRU.SHED ROCKENVELOPED IN FILTER,FABRIC -EXCAVATON LINE
FILTER FABRIC ,pod GEOCOMPOSITE
SURROUNDING a a`� PANEL DRAIN
CRUSHED ROCK
l APPROXIMATE `a MINUS 3/4-INCH APPROXIMATE
EXCAVATION CRUSHED ROCK EXCAVATION
J �LINE ••,�ga LINE
1 o
AT LEAST e AT LEAST 2-INCHES
111 d au•
OF CRUSHED ROCK OF CRUSHED ROCK
SURROUNDING PIPE SURROUNDING PIPE
4-INCH DIAMETER 4-INCH DIAMETER
PERFORATED PIPE, PERFORATED PIPE,
ABS OR PVC ABS OR PVC
ROCK BLANKET ALTERNATIVE NOTES GEOCOMPOSITE PANEL ALTERNATIVE
1) Geocomposite panel should consist of Miradrain 6000, J-DRain 400, Supac DS-15 or approved similar
product.
2) Interceptor drain at excavation backcut may be recommended based on conditions observed during
construction.
3) Perforated pipe should outlet through a solid pipe to a free gravity outfall. Perforated pipe and outlet
pipe should have a fall of at least 1%.
4) Filter fabric should consist of Mirafi 140N, Supac 5NP,Amoco 4599 or similar approved product. Filter
fabric should be overlapped at least 6-inches.
5) Drain installation should be observed by the geotechnical consultant prior to backfilling.
��G e o t e c h n i c s Project No. 0860-002-00
Incorporated WALL DRAIN DETAILS Document No. 05-0597
FIGURE 9
APPENDIX A
REFERENCES
Alfors, J. T., Burnett, J. L., Gay, T. E. (1973), Urban Geology: Master Plan for California:
California Division of Mines and Geology Notes Bulletin 198.
American Society for Testing and Materials (2004), ASTM Standards on Disc, Volume 04.08,
Soil and Rock(I): D420 -D5779.
Anderson, J. G. (1984), Synthesis of Seismicity and Geological Data in California, U.S.
Geological Survey Open-File Report 84-424, 186 pp.
Blake, T. F. (2000), EQFAULT, EQFAULT and FRISKSP: Computer Programs for Estimation
of Peak Horizontal Acceleration from Southern California Historical Earthquakes.
California Department of Conservation, California Geological Survey (CGS) (2003), Fault
Investigation Reports for Development Sites within Alquist-Priolo Earthquake Fault
Zones in Southern California: CGS CD 2003-02, 2003.
California Department of Conservation, California Geological Survey (CGS) (2002), Fault
Evaluation Reports Prepared under the Alquist-Priolo Earthquake Fault Zoning Act,
Region 2—Southern California: CGS CD 2002-02, 2002.
California Department of Conservation, Division of Mines and Geology (1998), Maps of Known
Active Fault Near-Source Zones in California and Adjacent Portions of Nevada.
California Division of Mines and Geology(1994), Fault Activity Map of California and Adjacent
Areas, Revised Official Map.
California Department of Conservation, Division of Mines and Geology (CDMG) (1992), Fault
Rupture Hazard Zones in California, Alquist-Priolo Special Studies Zone Act of 1972:
California Division of Mines and Geology, Special Publication 42.
California Department of Conservation, Division of Mines and Geology (CDMG) (1977),
Seismic Hazards Related to Geologic Factors, Elsinore and Chino Fault Zones,
Northwestern Riverside County, California: California Division of Mines and Geology,
Open File Report 77-4.
California Department of Conservation, Division of Mines and Geology (CDMG) (1992), Fault
Rupture Hazard Zones in California, Alquist-Priolo Special Studies Zone Act of 1972:
6 California Division of Mines and Geology, Special Publication 42.
California Department of Transportation (2002), Standard Specifications dated July 2002.
Geotechnics Incorporated
t
i
APPENDIX A
REFERENCES (Continued)
I
Geotechnics Incorporated (2005a), Air Track Exploration Results, Nichols Property, Lake
Elsinore, California, Project No. 1032-002-00, Document No. 05-0314, March 31, 2005.
Geotechnics Incorporated (2005b), Proposal For Geotechnical Services, Preliminary
Geotechnical Investigation, Proposed Outlet Mall Expansion, Lake Elsinore, California,
Proposal No. 04-134R, Document No. 04-0533R, March 28, 2005.
GREENBOOK (2003), Standard Specifications for Public Works Construction, 2003 Edition.
Hart, E. W. (1990), Fault Rupture Hazard Zones in California, Alquist-Priolo Earthquake Fault
Zoning Act of 1972 with index to Special Studies Zones maps (revised 1999): California
Division of Mines and Geology Special Publication 42.
International Conference of Building Officials (1997), 2001 California Building Code.
Jennings, C. W. (1994), Fault Activity Map of California and Adjacent Areas: California
Division of Mines and Geology, California Geologic Data Map Series.
Mualchin, L. and Jones, A. L. (1992), Peak Accelerations from Maximum Credible Earthquakes
in California (Rock and Stiff-Soils Sites): California Division of Mines and Geology,
Open-File Report, 92-1.
National Geographic Holdings, Inc. (2001), TOPO!, Seamless USGS Topographic Maps on CD-
ROM: San Francisco, California.
Office of Statewide Health Planning and Development (OSHPD) (1995), Reconciliation between
OSHPD Review and Seismic Hazards Mapping Approaches to Probabilistic Seismic
Hazards Assessments, Division of Mines & Geology, Status Report dated January 18.
Public Works Standards, Inc. (2003), "GREENBOOK," Standard Specifications for Public
Works Construction, 2003 Edition.
Sadigh et al. (1997), Attenuation Relationship, Horizontal - Soil.
Wesnousky, S. G. (1986), Earthquakes, Quaternary Faults, and Seismic Hazard in California:
Journal of Geophysical Research, v. 91, no. B12, p. 12587-12631.
i Youngs, R.R. and Coppersmith, K. J. (1995), Implications of Fault Slip Rates and Earthquake
i Recurrence Models to Probabilistic Seismic Hazard Estimates, Bulletin of the
Seismological Society of America, vol. 75, no. 4, pp. 939-964.
Geotechnics Incorporated
i
APPENDIX B
SUBSURFACE EXPLORATION
Our field explorations consisted of a visual reconnaissance of the site and drilling 10 exploratory
borings using an 8-inch diameter, hollow-stem auger truck-mounted drill rig. The borings were
drilled to depths of between about 9% and 51'/2 feet below the existing ground surface. Field
explorations were performed on May 9, 10, and 11, 2005. The approximate locations of the
borings are shown on Plate 1, Geotechnical Map. Logs describing the subsurface conditions
encountered are presented on the following Figures B-1 through B-16.
I
Standard penetration tests (SPTs) were performed in the borings. The number of blows (N
value) to drive the sampler 12 inches is indicated on the boring logs. The SPTs were performed
in general accordance with the ASTM Designation D1586 test method. The sampler used was a
standard split-barrel sampler with an inside diameter of 1-3/8-inches and an outside diameter of
2-inches, as described in the test method. The hammer used to drive the SPT sampler was a 140--
pound hammer. A hammer drop of about 30 inches was used. The soils from the split spoon
samples were collected in sample bags for laboratory identification. Relatively undisturbed
samples were collected using a California (CAL) sampler. The CAL sampler is a ring-lined tube
with an inside diameter of 2-3/8 inches and an outside diameter of 3 inches. The ring samples
were sealed in plastic bags, placed in rigid plastic containers, labeled, and returned to the
laboratory for testing. The hammer used to drive the CAL samplers was a 140-pound hammer,
and a hammer drop of about 30 inches was used. Bulk soil samples were also obtained at
selected intervals. Bulk and drive sample locations are indicated on the logs with shading. All
samples were labeled and returned to Geotechnics' laboratory for testing.
Boring locations were established in the field by taping distances from landmarks shown on the
plans provided and using GPS. The locations shown should not be considered more accurate
than is implied by the method of measurement used. The lines designating the interface between
'. soil units on the boring logs are determined by interpolation and are therefore approximations.
The transition between the materials may be abrupt or gradual. Furthermore, soil conditions at
locations between the borings may be substantially different from those at the specific locations
explored. It should be recognized that the passage of time can result in changes in the soil
conditions reported in our logs.
1 Geotechnics Incorporated
i
LOG OF EXPLORATION BORING NO. 1
Logged by: : Date Drilled: 5/11/05
Method of Drilling: 8-inch diameter hollow-stem auger Elevation: 1305 ft. MSL
W aa..uJ o- U e
s a Uj y a W
w o ; Y y DESCRIPTION LAB TESTS
❑ _j z
J a' =) W 0
m ❑ CO ❑
1 ALLUVIUM: Silty sand(SM), brown,fine to coarse,dry to moist some gravels,
trace clay. Maximum Density&,
2 Optimum Moisture
3 67 CAL ResistSoluble'Sulfate
Soluble Chloride
4 Expansion Index
5
(33.8%Passing No.200 sieve) %Passing#200
6 32 sar Some clay,dense.
7
8
g Gravels.
10
119 7.3
11 70 CAL Response to Wetting
12
13
14 ------ ---- --- - ----
15
16 Silty sand to well graded sand with silt(SM to SW-SM),orangish brown,fine to
30 sPr coarse,moist,dense,few gravels.
- 17
18
19
20
21 52 CAL Light brown,dry to moist, gravels.
22
- 23
24
Cobbles.
25
26 Well graded sand with silt(SW-SM),brown,fine to coarse,moist, very dense,
60 sPr gravels.
27
28
29
- 30
PROJECT NO. 0860-002-00 GEOTECHNICS INCORPORATED FIGURE B-1
LOG OF EXPLORATION BORING NO. 1 (continued)
Logged by: CW Date Drilled: 5/11/05
Method of Drilling: 8-inch diameter hollow-stem auger Elevation: 1305 ft. MSL
LL w
f a a cLLi e
a Q < a w
a. �' CO U'a. DESCRIPTION
W J z 'n LAB TESTS
0 of it D w o
In 0 m o
31 85 CAL ALLUVIUM: Silty sand to well graded sand with silt(SM to SW-SM),brown,
fine to coarse,moist,gravels.
i
32
33
II 34
35 -- - V
- 36 Medium dense,wet.
24 sPT (20.8%-Passing No.200 sieve) Sieve analysis
37 (LL=25,PL=19,PI=6) Atterberg Limits
- 38
39
40
(36.0%Passing No.200 sieve) % Passing#200
41 35 sPT Interlayered silty sand to well graded sand with silt(SM to SW-SM)and sandy
silt(ML),brown,fine to coarse,moist,dense,gravels.
42
43
44
45
46 38 saT Silty sand to well graded sand with silt(SM to SW-SM),brown,fine to coarse,
moist to wet,dense,gravels.
47
48
49
(48.7%Passing No.200 sieve) %Passing#200
50 38 srT Interlayered with sandy silt(ML),moist to wet,dense.
E
- 51
52 Total depth:50'/:feet
Groundwater seepage encountered at 35 feet
53
54
55
- 56
57
58
59
60
PROJECT NO. 0860-002-00 GEOTECHNICS INCORPORATED FIGURE B-2
LOG OF EXPLORATION BORING NO. 2
Logged by: CW Date Drilled: 5/11/05
Method of Drilling: 8-inch diameter hollow-stem auger Elevation: 1291 ft. MSL
r- wLL w
F= a a v
uv a Q a. w
w DESCRIPTION LAB TESTS
w 2: _j z
0
m o m o
1 ALLUVIUM: Silty sand(SM),brown to dark orangish brown,fine to coarse,dry
to moist,gravels. Maximum Density&
2
Optimum Moisture
3
$ CAL Expansion Index
4
5
Abundant gravels.
6
7
8
9
10
11 10 SPT Some clay,loose.
12
13
14
15
16
17 88 CAL Silty sand with gravel(SM),orangish brown,fine to coarse,moist.
18 Abundant gravels to cobbles.
Refusal in ravels and cobbles.
19
20 Total depth: 18%feet,refusal in gravels and cobbles
No groundwater encountered
21
22
23
24
25
26
27
28
29
30
PROJECT NO. 0860-002-00 GEOTECHNICS INCORPORATED FIGURE B-3
LOG OF EXPLORATION BORING NO. 3
Logged by: CW Date Drilled: 519105
Method of Drilling: 8-inch diameter hollow-stern auger Elevation: 1299 ft. MSL
f- w Uj -,
U-
U.
Uj
J J U e
y cn DESCRIPTION LAB TESTS
a.w 0 > z -
0 o it D w o
m o CO o
- 1 METAMORPHIC ROCK: Dark gray and brown,fine grained,intensely fractured,
dry to moist,clasts generally 3/<-2 inches in dimension.
2
3
- 4
5
40/ $FT.
6 4"
7
8
- 9 Difficult drilling.
10
11 Total depth:9%feet
No groundwater encountered
12
13
14
15
- 16
17
18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
PROJECT NO. 0860-002-00 GEOTECHNICS INCORPORATED FIGURE B4
LOG OF EXPLORATION BORING NO. 4
Logged by: CW Date Drilled: 5/9/05
Method of Drilling: 8-inch diameter hollow-stem auger Elevation: 1324 ft. MSL
U_ J J U e
N ai N DESCRIPTION LAB TESTS
a w
> J Z N
W 0
o J D W O
m 0 m o
1 ALLUVIUM: Silty sand(SM),brown,fine to medium with some coarse,dry to
moist,gravels up to 3 inches in dimension. R-Value
2 Resistivity&pH
Soluble Sulfate
3 Soluble Chloride
Remolded Shear
4
5
6 73/ CAL Moist,subangular to angular coarse sand and gravel.
11"
7
8
Trace gravels.
9
10
11 37 sPT
12
13
14
15 119 6.1 Consolidation
16 68 CAL Silty sand(SM), brown,fine to coarse,dry to moist,pinhole porosity.
17
18
19
20 Poorly graded sand with silt(SP-SM),light brown, medium to coarse,dry to
21 60 CAL moist,gravels.
22
23
24
25 Gradin with sdt sand SM fine to coarse %Passing#200
26 (34.8% Passing No.200 sieve)
38 sPT Sandy silt(ML), light brown, fine with few medium to coarse,moist,dense.
27
28
29
30
PROJECT NO. 0860-002-00 GEOTECHNICS INCORPORATED FIGURE B-5
LOG OF EXPLORATION BORING NO. 4 (continued)
Logged by: CW Date Drilled: 5/9/05
Method of Drilling: 8-inch diameter hollow-stem auger Elevation: 1324 ft. MSL
W a a V e
aUj
va) U) U)) It
LAB TESTS
yj
ui > J Z N
G
m 0 m
31 61 CAL ALLUVIUM:Silty sand to sandy silt(SM/ML),light brown,fine with some
medium,few coarse,moist,few gravels.
32
33
34
35 116 7.0
36 50 CAL Moist,pinhole porosity. Response to'Notting
37
38
39 ------ -------- ------ -------------------------------------------------------------------------------------
"Tight"drilling.
40
Interlayered poorly graded sand with silt(SP-SM),silty sand(SM),and sandy %Passing#200
41 silt(ML),light brown,fine to coarse,moist,dense,gravels up to'/,-inch in
36 sPT dimension.
42 39.5%Passing No.200 sieve
43 Total depth:42 feet,lost rotation
- 44 No groundwater encountered
45
46
47
48
- 49
- 50
- 51
52
53
54
55
56
57
58
59
- 60
PROJECT NO. 0860-002-00 GEOTECHNICS INCORPORATED FIGURE B-6
LOG OF EXPLORATION BORING NO. 5
Logged by: CW
Date Drilled: 5110/05
Method of Drilling: 8-inch diameter hollow-stem auger Elevation: 1326 ft. MSL
u~ w w
W a a v
aUj
a. a
cn N _5 DESCRIPTION
o � > J z � LAB TESTS
m o m o
1 ALLUVIUM: Silty sand to well graded sand with silt(SM to SW-SM),brown,
fine to coarse, moist,medium dense,gravels. Remolded Shear
2
3
4
-------------------------------------------
5 —
6 14 sPr Moist,marginal to clayey sand (SC).
7
8
9
10 123 9.6
11 � cAL Clayey sand(SC),brown,fine to coarse,moist. Consolidation
12
13 ------ -------- ------ ------------
14
15
113 6.2 Direct Shear
- 16 48 CAL Well graded sand with silt,some clay(SW-SM),brown,fine to coarse,moist.
- 17
- 18
- 19
20
Interlayered silty sand(SM),well graded sand with silt(SW-SM),and clayey
21 sand(SC), brown,fine to coarse,moist with some free water in sandy zones,
31 SPr dense.
22
23
24
25
26 57 CAL Well graded sand with silt(SW-SM), brown,fine to coarse,moist,friable,few
gravels.
27
- 28
29
30
PROJECT NO. 0860-002-00 GEOTECHNICS INCORPORATED FIGURE 13-7
LOG OF EXPLORATION BORING NO. 5 (continued)
Logged by: CW Date Drilled: 5/10/05
Method of Drilling: 8-inch diameter hollow-stem auger Elevation: 1326 ft. MSL
LL w -�
J J U e
a.
y cn a D DESCRIPTION LAB TESTS
Y �n to
o M W O
- 31 37 ALLUVIUM:Well graded sand with silt(SW-SM)to silty to clayey sand(SM/SC),
brown,fine to coarse, moist.
- 32
- 33
- 34
- 35 (56.7%Passing No.200 sieve) %Passing#200
- 36 Interlayered silty sand(SM)and sandy silt(ML),brown,fine to coarse,moist,
31 sPT dense,some clay.
- 37
- 38
- 39
- 40
- 41 47 CAL
- 42
- 43
- 44
- 45
- 46 Silty sand(SM)with some sandy silt(ML),brown,fine to medium with some
38 sPT coarse, moist,dense,some angular gravels.
- 47
- 48
- 49
- 50 Zones of well graded sand with silt(SW-SM),free water in zones.
- 51 68 CAL
- 52 Total depth: 51 feet
- 53 No groundwater encountered
54
- 55
- 56
- 57
- 58
- 59
- 60
PROJECT NO. 0860-002-00 GEOTECHNICS INCORPORATED FIGURE B-8
Logged by: CW LOG OF EXPLORATION BORING NO. 6
Date Drilled: 5/9/05
Method of Drilling: 8-inch diameter hollow-stem auger Elevation: 5/9 0 ft. MSL
w Uj
U.
�= a a U
a w a w
a ¢
`o ¢ DESCRIPTION
a. � w Y r 5 LAB TESTS
W O -� Z
D
m O m
1 ALLUVIUM:Silty sand(SM),brown,fine to medium,d to moist,dense,
gravels. Resistivity&pHry
2 Soluble Sulfate
Soluble Chloride
3 46 SPT Expansion Index
4
5
118 9.2 Response to Wetting
6 46 CAL Some clay, caliche, pinhole porosity.
7
8
9
10
(53.3%Passing No.200 sieve) %Passing#200
11 34 sPT Fine to coarse,moist,dense,subangular to subrounded gravels.
12
13 Harder drilling.
14 METAMORPHIC ROCK: Weathered to silt to clay(MUCL),light brown,moist,
hard,some sand.
15
- 16 70 CAL
- 17
18
19
20
21 Sandy silt (ML),orange, light gray,light brown,fine to coarse sand, moist,
65/ sPT very dense,few gravels.
22 8„
- 23
Total depth: 22 feet
24 No groundwater encountered
- 25
- 26
- 27
28
29
- 30
-----------------
PROJECT NO. 0860-002-00 GEOTECHNICS INCORPORATED FIGURE B-9
LOG OF EXPLORATION BORING NO. 7
Logged by: CW Date Drilled: 5/10/05
_Method of Drilling: 8-inch diameter hollow-stem auger Elevation: 1308 ft. MSL
LL H W Ja Ja U
x a ¢ Q a X
Cn C D DESCRIPTION LAB TESTS
W O j J Z y
m C Co o
1 ALLUVIUM: Silty sand(SM),brown,fine to medium with some coarse, moist,
gravels. Maximum Density&
2 Optimum Moisture
Remolded Shear
3
4
---- ------- ------ ------ -----------------------------------------------------------------------------
5 Sandy clay to clayey sand(CUSC), brown,fine to coarse,moist,gravels.
6 39 CAL
7
8
9 ------ -------- ------
------------------------------------------------------------------------------------
10
11 Silty sand to sandy silt(SM/ML),brown,fine to coarse, moist,medium dense,
24 sPT few gravels.
12
- 13
14
- 15
116 3.1 Response to Wetting
16 80 CAL Sandy silt(ML),light brown,fine to medium with some coarse,dry to moist.
17
18
19
20 50/ CAL
Grading to silty sand(SM),fine to coarse,dry to moist, gravels.
21 5"
22
23
"Tight"drilling.
24
25
(27.1% Passing No.200 sieve) %Passing#200
26 Silty sand(SM), light brown,fine to coarse, moist,dense,few gravels,friable
42 sPT zones.
27
- 28
- 29
30
PROJECT NO. 0860-002-00 GEOTECHNICS INCORPORATED FIGURE B-10
Logged by: CW LOG OF EXPLORATION BORING NO. 7 (continued)
Date Drilled: 5110/05
Method of Drilling: 8-inch diameter hollow-stem auger Elevation: 1308 ft. MSL
t-- w W
LL
►= a a
a
ui
a y w W D DESCRIPTION LAB TESTS
Uj
0 J z U)
in o m o 0
-- ------ ALLUVIUM: Well Graded sand with silt(SW-SM1_brown,fine to coarse,moist.
31 55 CAL -- ---------------------- -
Sandy clay(CL),olive gray,fine to medium sand with some coarse,moist.
32
33 -
34 ----- -------- ----- ------ ------------------
-----------------------------------------------------------
- 35
36 Poorly graded sand with silt(SP-SM),light brown,medium to coarse,wet,
48 SPT dense.
37
- 38
39
40
(LL=42, PL=17,PI=25)
a Atterberg Limits
41 SPT .--- ------ ------ Moist_ �84 7/o Passim No^200 sieve2--------------------------------------- %Passing#200
39 ------
42 Sandy clay(CL),olive gray,some fine sand with few medium to coarse,moist,
dense.
43
44
45
(74.6%Passing No.200 sieve) %Passing#200
46 Sandy clay(CL),brown with orange and gray,fine sand with few
33 SPT medium to coarse,moist,dense,few gravels.
47
48
49 ----------------
50
51 37 SPT Silty sand(SM),brown with orange and gray,fine to coarse,moist,dense,
rav«Is
52
- 53 Total depth:51 Yz feet
Perched groundwater encountered at 33 feet during drilling
54
55
56
57
58
59
60
PROJECT NO. 0860-002-00 GEOTECHNICS INCORPORATED FIGURE B-11
LOG OF EXPLORATION BORING NO. 8
Logged by: CW Date Drilled: 5/10/05
Method of Drilling: 8-inch diameter hollow-stem auger Elevation: 1332 ft. MSL
LL J J V e
�= W a a
a vai a, ? DESCRIPTION LAB TESTS
a W
W 0 > J Z 0
0 m O m 0
1 ALLUVIUM: Silty to clayey sand(SM/SC),brown,fine to coarse,moist,
dense,gravels.
2
3 33 SPT
4
5
6 41 CAL More clay,2 inch angular gravels.
7
8 ------ -------- ------ ------ •-----------------------------------------------------------------------------
9
10 114 8.4 Consolidation
11 56 CAL Silty sand(SM),brown,fine to coarse,moist, pinhole porosity.
- 12
13
14 ------ -------- ------ ------ ------------------------------------------------------------------------------
15 (22.9%Passing No.200 sieve) %Passing#200
16 Well graded sand with silt(SW-SM),brown,fine to coarse,moist,medium
26 sPT dense,few gravels,4 inch thick sandy silt(ML)layer.
17
18
19
20 Sandy silt(ML)with some silty sand(SM),brown,fine with some medium to
- 21 21 coarse,moist.
22
23
24 ------ -------- ------ ------ -----------------------------------------------------------------------------
- 25 Silty sand(SM)grading to well graded sand with silt(SW-SM), brown,fine to
26 42 CAL coarse, moist.
27
- 28
29
30
PROJECT NO. 0860-002-00 GEOTECHNICS INCORPORATED FIGURE B-12
LOG OF EXPLORATION BORING NO. 8 (continued)
Logged by: CW Date Drilled: 5110/05
Method of Drilling: 8-inch diameter hollow-stem auger Elevation: 1332 ft. MSL
w
w
F W a a v
w 2 g a. w
w= a Cn � DESCRIPTION
o > Y N LAB TESTS
o _j z
1 m o m o 0
31 ALLUVIUM:Well graded sand with silt(SW-SM),brown,fine to coarse,moist, Passing#200
f 18 sPT medium dense,few gravels,4 inch thick layer of silty sand to sandy silt(SM/ML).
32 (20.9%Passing No.200 sieve)
33
34
35
36 37 CAL Grading to silty sand(SM), brown,fine to coarse,moist.
37
38
39
40
(10.1%Passing No.200 sieve) %Passing#200
41 Well graded sand with silt(SW-SM)to silty sand(SM),brown,fine to coarse,
44 sPT moist. dense.
42
43
44
45
Friable,few gravels.
46 77 CAL
I 47 Lost rotation.
- 48
Total depth:47 feet,lost rotation
49 No groundwater encountered
50
51
52
53
I 54
i 55
56
57
- 58
59
- 60
PROJECT NO. 0860-002-00 GEOTECHNICS INCORPORATED FIGURE B-13
LOG OF EXPLORATION BORING NO. 9
Logged by: CW
Date Drilled: 519/05
Method of Drilling: 8-inch diameter hollow-stem auger Elevation: 1280 ft. MSL
J W
W
F, W a a-
LU U e
x a a ¢ a �
cn cn DESCRIPTION
w > Y (n LAB TESTS
❑ -� Z
m ❑ m ❑ �
1 ALLUVIUM: Silty sand(SM),brown,fine to medium,moist.
------ -------- ------ ----------------------------------- __
-—------------------------------------------
Maximum Density&
- 2 Optimum Moisture
Sandy clay(CL),brown,fine to medium sand,low to medium plasticity, moist.
3
4 —
5 METAMORPHIC ROCK:Weathered to silty sand with gravel(SM),dark brown,
moist,very dense,some clay.
6 901 SPT
7 101,
8 ------ --------------- ------•---
9
10 45/ CAL
Silt to clay with sand(MUCL),dark brown and gray,fine to coarse sand,
11 6" moist.
12
13
14
15
16 Silt to clay(MUCL),orange,gray,and light brown,27 SPT hard. fine to coarse sand,moist, Passing#200
17 (LL=49, PL=26,PI=23) Atterberg Limits
(53.5%Passing No.200 sieve)
18hl to moderate seepage in rock fractures.
19
20
Silt to clay(MUCL)with sand,orange and light gray,fine to coarse sand,
21 78/ CAL moist.
11"
22
23
24
25
26 50/ SPT Very dense
6"
27
28
29
30
PROJECT NO. 0860-002-00 GEOTECHNICS INCORPORATED FIGURE B-14
Logged by: CW LOG OF EXPLORATION BORING NO. 9 (continued)
Date Drilled: 5/9105
Method of Drilling: 8-inch diameter hollow-stem auger Elevation: 1280 ft. MSL
w
w
U. -j J L) e
►= W a o- c�
_ a
LU
= a W N ? DESCRIPTION LAB TESTS
uj
w 0 C) > _j z y
0
m o m c
50/ CAL METAMORPHIC ROCK: Metasedimentary rack,gray with orange staining,fine
31 6 rained,moist,very dense,slightly weathered.
32
Total depth: 31 feet
33 Light to moderate seepage at 18 feet(in rock fractures)
34
35
36
37
38
39
40
41
- 42
43
44
45
46
- 47
48
- 49
50
51
52
53
54
55
- 56
57
- 58
59
60
PROJECT NO. 0860-002-00 GEOTECHNICS INCORPORATED FIGURE B-15
Logged by: CW LOG OF EXPLORATION BORING NO. 10
Method of Drilling: 8-inch diameter hollow-stem auger Date Drilled: 5111105
Elevation: 1290 fMSL
LL W
t~i a a U
w a
a Q w
�' cn DESCRIPTION
W 0 LU
> J z LAB TESTS
m o m o 0
1 ALLUVIUM: Silty sand(SM), brown to dark orangish brown,fine to coarse,
moist,few gravels.
2
3
4
5
6
7
8
9 ------ -------- ------ ------
10
8 CAL
121 12.2 Clayey sand(SC),dark orangish brown,fine to coarse,moist. Response to Wetting
11 (33.8%Passing No.200 sieve)
Refusal on lar a cobble.
12
13 Total depth: 11%feet,refusal on large cobble
No groundwater encountered
14
15
16
17
18
19
20
21
22
23
- 24
25
- 26
- 27
28
- 29
- 30
PROJECT NO. 0860-002-00 GEOTECHNICS INCORPORATED FIGURE B-16
APPENDIX C
r
LABORATORY TESTING
Selected samples of soils encountered during the investigation were tested using generally
accepted testing standards. The soils selected for testing are believed to be generally
Irepresentative of the materials encountered during the investigation at the site; however,
variations may occur in the soils at the site, and the materials tested may not be representative of
the materials encountered during construction.
Laboratory testing was conducted in a manner consistent with that level of care and skill
t ordinarily exercised by members of the profession currently practicing under similar conditions
and in the same locality. No warranty, express or implied, is made as to the correctness or
serviceability of the test results or the conclusions derived from these tests. Where a specific
i laboratory test method has been referenced, such as ASTM or California Test, the reference
applies only to the specified laboratory test method and not to associated referenced test
method(s) or practices, and the test method referenced has been used only as a guidance
document for the general performance of the test and not as a "Test Standard." A brief
description of the tests performed follows:
Classification: Soils were classified visually according to the Unified Soil Classification
System as described in ASTM D2488. Visual classification was supplemented by laboratory
testing of selected soil samples and classification in general accordance with the laboratory soil
classification tests outlined in ASTM D2487. The resultant soil classifications are shown on the
boring logs in Appendix B.
In-Situ Moisture/Density: The in-place moisture contents and dry unit weights of selected soil
samples were determined using relatively undisturbed samples from the CAL sampler liner rings.
The dry unit weights and moisture contents are shown on the boring logs in Appendix B.
Percent Passing No. 200 Sieve: Particle size determinations for the percentage of sample
passing the No. 200 sieve were performed in general accordance with the laboratory procedures
1 outlined in ASTM test method D 1140. The results are shown on the boring logs in Appendix B.
Particle Size Analysis: Particle size analyses were performed in general accordance with the
laboratory procedures outlined in ASTM test method D422. The grain size distribution was used
to estimate presumptive soil strength parameters and foundation design criteria. The results are
given in Figure C-1.
Atterberg Limits: The liquid limit, plastic limit, and plasticity index of selected fine-grained
soil samples were estimated in general accordance with the laboratory procedures outlined in
ASTM test method D4318. The results are given in Figure C-1 and on the boring logs in
Appendix B.
Geotechnics Incorporated
i
I
i
APPENDIX C
j LABORATORY TESTING (Continued)
Maximum Density/Optimum Moisture: The maximum dry density and optimum moisture
content of selected soil samples were estimated in general accordance with the laboratory
fprocedures outlined in ASTM D1557. The test results are given in Figure C-2.
R-Value: R-value tests were performed on samples of the upper soils in general accordance
with the laboratory procedures outlined in ASTM D2844. The test results are given in Figure C-
2.
Sulfate Content: To assess the potential for reactivity with below grade concrete, selected soil
samples were evaluated for water-soluble sulfate content. The soluble sulfate was extracted from
1 the soils under vacuum using a 10:1 (water to dry soil) dilution ratio. The extracted solution was
then tested for water-soluble sulfate in general accordance with ASTM D516. The test results
are given in Figure C-3.
1
j pH and Resistivity: To assess the potential for reactivity with buried metal pipe and below
grade ferrous materials, selected soil samples were tested for pH and resistivity in general
accordance with the laboratory procedures outlined in Caltrans test method 643. The test results
are given in Figure C-3.
i Chloride Content: Selected soil samples were evaluated for water-soluble chloride content in
general accordance with the Standard Method for Evaluation of Waste Water Test
SMEWW4500CL-C, which is conducted in general conformance with EPA Test Method 375.4.
1 The test results are given in Figure C-3.
i
Expansion Index: The expansion potential of selected soil samples was estimated in general
1 accordance with the laboratory procedures outlined in ASTM D4829. The test results are given
in Figure C-4.
Consolidation Test: In order to evaluate the compressibility of the soils at the site, one-
dimensional consolidation properties of selected soil samples were evaluated in general
accordance with the laboratory procedures outlined in ASTM test method D2435. The soil
samples were saturated at approximately the overburden stress and then subjected to
incrementally applied controlled stress loading. The soil samples were restrained laterally and
drained axially, while loaded. The test results are summarized on Figures C-5 through C-7.
Response to Wetting:. The collapse potential of selected soils when wetted was estimated in
general accordance with the laboratory procedures outlined in ASTM test method D2435. The
results are presented on Figures C-8 through C-12.
i
Geotechnics Incorporated
i
I APPENDIX C
LABORATORY TESTING (Continued)
I
Remolded Direct Shear: The shear strength of selected recompacted soil samples was assessed
through direct shear testing performed in general accordance with the laboratory procedures
outlined in ASTM test method D3080. The sample was fabricated by compacting a bulk sample
of the onsite soils to approximately 90 percent of maximum dry density as determined in general
accordance with the laboratory procedures outlined in ASTM test method D1557, modified
JProctor. The sample was confined under vertical pressures in the laboratory approximately equal
to the anticipated range of the design effective overburden pressures. The sample was then
inundated under water and sheared at a strain rate selected to approximate drained shear
i conditions. The results are summarized in Figure C-13 through C-15.
Consolidated Direct Shear: The shear strength of a selected relatively undisturbed soil sample
was assessed through direct shear testing performed in general accordance with the laboratory
procedures outlined in ASTM test method D3080. The sample was obtained from the liner rings
of a 2.38-inch ID Modified California Sampler. The sample was consolidated under a vertical
pressure in the laboratory, which was approximately equal to the effective overburden pressure
in the field. The sample was then confined under laboratory vertical pressures approximate)
equal to the anticipated range of design y
e
q p g gn effective overburden pressures, inundated under water,
and sheared at a strain rate selected to approximate drained shear conditions. The results are
summarized in Figure C-16.
f
Geotechnies Incorporated
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■ N co
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7 g
� � \
M c
ƒ
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3
------------------
-------------------
\ O
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w
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IL = d
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G S / 2 2 Q R g § ° u
mma«k,_!mOZ)ad
MAXIMUM DENSITY/OPTIMUM MOISTURE CONTENT
(ASTM D1557)
MAXIMUM OPTIMUM
SAMPLE NO. SAMPLE DESCRIPTION DENSITY MOISTURE
(PCF) N
B-1 at 0 to 4 ft. ALLUVIUM: brown SILTY SAND 127 9
B-2 at 0 to 4 ft. ALLUVIUM: orange brown SILTY SAND 135'/2 7'/2
B-7 at 0 to 4 ft. ALLUVIUM: brown SILTY SAND 126% 10
ALLUVIUM: brown CLAYEY SAND
B-9 at 0 to 4 ft. (tested without coarse rock fraction) 126 10
B-9 at 0 to 4 ft. ALLUVIUM: brown CLAYEY SAND 131 8'/2
(insitu 16 percent coarse rock fraction)
R-VALUE TEST RESULTS
(ASTM D2844)
SAMPLE NO. SAMPLE DESCRIPTION R-VALUE
B-4 at 0 to 4 ft. ALLUVIUM: brown SILTY SAND with some gravel 45
Project No. 0860-002-00
`G e o t e c h n i c s Document No. 05-0597
Incorporated LABORATORY TEST RESULTS
FIGURE C-2
pH, RESISTIVITY, SULFATE AND CHLORIDE TEST RESULT
S
I WATER-SOLUBLE RESISTIVITY WATER-SOLUBLE
SAMPLE NO. SULFATE CONTENT PH CHLORIDE CONTENT
(%of Dry Soil Weight) [CALTRANS 643] (ohm-cm) (% of D Soil Weight)
[ASTM D5161 [CALTRANS 643] Dry g )
[SMEWW4500CL-C]
B-1 at 0 to 4 ft. <0.01 8.02 5,940 <0.01
[ B-4 at 0 to 4 ft. <0.01 8.14 5,480 <0.01
B-6 at 0 to 4 ft. <0.01 7.96 4,750 <0.01
Soil Resistivity in ohm-cm General Degree of Corrosivity to Ferrous Metal
0 to 1,000 Very Corrosive
1,000 to 2,000 Corrosive
2,000 to 5,000 Moderately Corrosive
5,000 to 10,000 Mildly Corrosive
Greater than 10,000 Slightly Corrosive
Water Soluble Chloride (CI)Content in %of Dry Soil
Weight General Degree of Corrosivity to Metal
Over 0.15% Severely Corrosive
0.15%to 0.03% Corrosive
0.03 %to 0.00% Negligible
Water Soluble Sulfate(SO4)Content in %of Dry Soil
Weight General Degree of Reactivity with Concrete
Over 2.00% Very Severely Reactive
2.00%to 0.20% Severely Reactive
0.20%to 0.10 % Moderately Reactive
0.10%to 0.00 % Negligible
Reference: 2001 CBC,Table 19-A-4
Project No. 0860-002-00
=G e o t e c h n i c s Document No. 05-0597
Incorporated LABORATORY TEST RESULTS
FIGURE C-3
EXPANSION INDEX TESTS
(ASTM D4829)
SAMPLE NO. SAMPLE DESCRIPTION EXPANSION EXPANSION
INDEX POTENTIAL
B-1 at 0 to 4 ft. ALLUVIUM: brown SILTY SAND 25 LOW
B-2 at 0 to 4 ft. ALLUVIUM: orange brown SILTY SAND 0 VERY LOW
B-6 at 0 to 4 ft. ALLUVIUM: brown SILTY SAND 13 VERY LOW
i
2001 CBC TABLE NO. 18-1-13, CLASSIFICATION OF EXPANSIVE SOIL
i
EXPANSION INDEX POTENTIAL EXPANSION
0-20 Very Low
21-50 Low
51-90 Medium
91-130 High
Above 130 Very High
I
Project No. 0860-002-00
G e o t e c h n i c s Document No. 05-0597
I n c o r p o r a t e d LABORATORY TEST RESULTS
FIGURE C-4
I -1.00%
0.00%
1.00%
Tr I 1 - 1 1111
cn 2.00%
c
L
d
a
lk
3.00%
4.00%
5.00%
10.0 100.0 1000.0
10000.0
Stress [psf]
B4 @:15 ft. Water added to sample after consolidation under a load of 1,969 psf.
INITIAL FINAL
1.0000 0.9728 SAMPLE HEIGHT [IN]
118.6 121.9 DRY DENSITY[PCF]
2.60 2.60 SPECIFIC GRAVITY
0.37 0.33 VOID RATIO
6.1 11.8 WATER CONTENT [%]
42.7 92.6 DEGREE OF SATURATION [%]
G e o t e c h n i c s Project No.0860-002-00
Incorporated Consolidation Test Results Document No. 05-0597
FIGURE C-5
-1.00%
0.00%
I
i 1.00%
C
N 2.00%
C
d
t�
m
a
3.00%
I - -
4.00%
I
5.00%
10.0 100.0 1000.0 10000.0
Stress [psf]
B5 Q@ 10 ft. Water added to sample after consolidation under a load of 1,975 psf.
INITIAL FINAL
1.0000 0.9826 SAMPLE HEIGHT[IN]
123.1 125.2 DRY DENSITY[PCF]
2.60 2.60 SPECIFIC GRAVITY
0.32 0.30 VOID RATIO
9.6 11.2 WATER CONTENT [%]
77.9 98.0 DEGREE OF SATURATION N
Project No.0860-002-00
Geotechnics
Incorporated Consolidation Test Results Document No. 05-0597
FIGURE C-6
-1.00%
0.00%
1.00%
o _
u
C
r
CO) 2.00%
.r
C
d
a
3.00%
4.00%
5.00%
10.0 100.0 1000.0 10000.0
Stress [psf]
B8 @ 10 ft. Water added to sample after consolidation under a load of 1,969 psf.
INITIAL FINAL
1.0000 0.9674 SAMPLE HEIGHT[IN]
113.8 117.6 DRY DENSITY [PCF]
2.60 2.60 SPECIFIC GRAVITY
0.43 0.38 VOID RATIO
8.4 13.6 WATER CONTENT [%]
51.2 93.1 DEGREE OF SATURATION [%]
=G e o t e c h n i c s Project No. 0860-002-00
Incorporated Consolidation Test Results Document No. 05-0597
FIGURE C-7
0.00%
T1
1.00%
,., 2.00%
I c
y
N - -
c
m
m
a
3.00%
I
i
4.00%
5.00%
10.0 100.0 1000.0 10000.0
1 Stress [psf]
B1 @ 10 ft. Water added to sample after consolidation under a load of 1,965 psf.
INITIAL FINAL
1.0000 0.9874 SAMPLE HEIGHT [IN]
118.5 120.0 DRY DENSITY[PCF]
2.60 2.60 SPECIFIC GRAVITY
0.37 0.35 VOID RATIO
7.3 12.7 WATER CONTENT [%]
51.1 94.1 DEGREE OF SATURATION [%]
_-G e o t e c h n i c s RESPONSE TO WETTING TEST Project No. 0860-002-00
Incorporated RESULTS Document No. 05-0597
FIGURE C-8
0.00%
1.00%
^, 2.00%
0
u
CU
d
V
V
d
a
3.00%
4.00%
5.00%
10.0 100.0 1000.0 10000.0
Stress [psf]
B4 @ 35 ft. Water added to sample after consolidation under a load of 6,126 psf.
INITIAL FINAL
1.0000 0.9590 SAMPLE HEIGHT [IN]
116.0 121.0 DRY DENSITY[PCF]
2.60 2.60 SPECIFIC GRAVITY
0.40 1 0.34 VOID RATIO
7.0 13.3 WATER CONTENT [%]
45.5 100.9 DEGREE OF SATURATION [%]
=G e o t e c h n i c s RESPONSE TO WETTING TEST Project No. 0860-002-00
I n c o r p o r a t e d RESULTS Document No.05-0597
FIGURE C-9
0.00%
1.00%
i
r, 2.00%
e
c
L
V
C
d
V
L
d
a.
3.00%
4.00%
5.00%
10.0 100.0 1000.0 10000.0
Stress [psf]
B6 @ 5 ft. Water added to sample after consolidation under a load of 3,003 psf.
INITIAL FINAL
1.0000 0.9848 SAMPLE HEIGHT [IN]
117.6 119.5 DRY DENSITY [PCF]
2.60 2.60 SPECIFIC GRAVITY
0.38 0.36 VOID RATIO
9.2 13.1 WATER CONTENT [%]
62.6 1 94.9 1 DEGREE OF SATURATION [%]
=_G e o t e c h n i c s RESPONSE TO WETTING TEST Project No. 0860-002-00
Incorporated RESULTS Document No, 05-0597
FIGURE C-10
0.00%
1.00%
2.00%
e
c
M
r
id
C
V
L
d
a
3.00%
i
4.00%
5.00%
10.0 100.0 1000.0 10000.0
Stress [psf]
B7 @ 15 ft. Water added to sample after consolidation under a load of 2,998 psf.
INITIAL FINAL
1.0000 0.9576 SAMPLE HEIGHT [IN]
115.9 121.1 DRY DENSITY[PCF]
2.60 2.60 SPECIFIC GRAVITY
0.40 0.34 VOID RATIO
3.1 13.3 WATER CONTENT [%]
20.0 101.8 DEGREE OF SATURATION [%]
e o t e c h n i c s Project No. 0860-002-00
RESPONSE TO WETTING TEST
Incorporated RESULTS Document No. 05-0597
FIGURE C-11
0.00%
1.00%
1
r, 2.00%
0
1�
C
W.
C
V
V
a.
3.00%
4.00%
5.00%
10.0 100.0 1000.0 10000.0
Stress [psf]
B10 @ 10 ft. Water added to sample after consolidation under a load of4,103 psf.
INITIAL FINAL
1.0000 0.9783 SAMPLE HEIGHT [IN]
121.1 123.8 DRY DENSITY [PCF]
2.60 2.60 SPECIFIC GRAVITY
0.34 0.31 VOID RATIO
12.2 12.3 WATER CONTENT [%]
93.0 102.5 DEGREE OF SATURATION [%]
-_G e O t e c h n i c s RESPONSE TO WETTING TEST Project No. 0860-002-00
Incorporated RESULTS Document No. 05-0597
FIGURE C-12
L 3000 - - - -
■■■■
a.2500 ■■■t■■■■ •
Cn 2000 - ■■
■ ■
W 1500 ■ �!�
In 1000 e■ 00O0 ❑000 000❑
a 500 - ° ate a®®■ a®■■ ®■■■®e■® ®■erg ■®on ■■e■
w e■
0
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
STRAIN [%]
5000 - - - - -—
4500 - 13 Peak Strength Test Results -
32 Degrees, 200 PSF Cohesion
4000 • Ultimate Strength Test Results
32 Degrees, 150 PSF Cohesion
3500 -- -- - - - -
L
co
a 3000
U
co
W 2500
w 2000
cn
1500 -
1000 -
500 �
I
oF - --- - - -, - J
0 1000 2000 3000 4000 5000
NORMAL STRESS [PSF]
SAMPLE: B-4 at 0 to 4 ft. PEAK ULTIMATE
ALLUVIUM: brown Silty Sand (SM) 32.0 ° 32.0 °
(sample compacted to 90% ASTM D1557) C' 200 PSF L 150 PSF
IN-SITU AS-TESTED
STRAIN RATE: 1 0.0020 IN/ Yd 114.3 PCF 114.3 PCF
(Sample was consolidated and drained) w, 10.0 % 15.6 % J
Project No. 0860-002-00
G e o t e c h n i c s DIRECT SHEAR Document No. 05-0597
I n c o r p o r a t e d TEST RESULTS FIGURE C-13
E 3500
a 3000 is ■ ■■■■■■a■ ■■a■ ■a■■ now
cn 2500 ■■
w 2000 ■■
N 1500 ❑oo o❑oo❑000 o00O 130
W 1000 E1❑❑
w 500 0 ■® ■■®® �� ® a® i®®®® ii®®a■
v i 0 ® -
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
STRAIN [%]
f I 5000 --�- -
4500 o Peak Strength Test Results
38.5 Degrees, 150 PSF Cohesion
4000 • Ultimate Strength Test Results
37.5 Degrees, 0 PSF Cohesion i
3500 i
L
CO)
a 3000
w
2500 - --
cn !
w 2000
x
co
1500
1000
i
500 ! i
� I I
0
0 1000 2000 3000 4000 5000
NORMAL STRESS [PSF]
SAMPLE: B-5 at 0 to 4 ft. PEAK ULTIMATE
ALLUVIUM: brown Well Graded Sand (SW) 38.5 0
37.5 °
(sample compacted to 90% ASTM D1557) C. 150 PSF
0 PSF
IN-SITU AS-TESTED
STRAIN RATE: 1 0.0050 IN/MIN yd 114.5 PCF 114.5 PCF
(Sample was consolidated and drained) w .8
15.9 %
Project No.0860-002-00
=G e o t e c h n i c s DIRECT SHEAR Document No. 05-0597
Incorporated TEST RESULTS
FIGURE C-14
U 2500 -
to ■■ ■■L13
-
w 1500 ■■
■
1000 - - ■■■ ❑ ❑❑ ❑❑❑❑ ❑❑❑❑ ❑❑❑❑ ❑❑o❑
I ■ 130-
w 500 ■®®■ ■®■■ ®®®® ■®■■
■e
Cn 0 ss - --
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
STRAIN [%]
5000 — �-
4500 ❑ Peak Strength Test Results
24.5 Degrees, 250 PSF Cohesion
4000 ® Ultimate Strength Test Results
24.5 Degrees, 150 PSF Cohesion
3500
r-,
LL
a 3000 -
N
2500 - -
U i
w 2000 —
1500
r I
1000 -
500 —
i
0 1000 2000 3000 4000 5000
NORMAL STRESS [PSF]
SAMPLE: B-7 at 0 to 4 ft. PEAK ULTIMATE
ALLUVIUM: brown Silty Sand (SM) �►' 24.5 ° 24.50
(sample compacted to 90% ASTM D1557) C' 250 PSF 150 PSF
IN-SITU AS-TESTED
STRAIN RATE: 0.0020 IN/MIN yd 113.6 PCF 113.6 PCF
(Sample was consolidated and drained) w, 10.2 % 16.4
Project No. 0860-002-00
AM16, Geotechnics DIRECT SHEAR Document No. 05-0597
Incorporated TEST RESULTS
FIGURE C-15
LL 8000 -
a 700011111
- --- -
U)6000 �i■ ■■ ■■■■ ■■■
w
5000 ■ ■■
M 4000 ■■
cn 3000 ■■■ �pppoan ❑❑o q
LLJ
2000 ■ p p El 1313
p
1000 ■ ` ■®® ammitaAMBALM MORE BEEMEMEM® ®®®® ®®®® -®■■■
CO) 0
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
STRAIN [%]
9000 -
❑ Peak Strength Test Results
8000
40 Degrees, 0 PSF Cohesion
• Ultimate Strength Test Results
7000 40 Degrees, 0 PSF Cohesion
f I
LL 6000
a I
I �
CO) 5000
UJ
4000
w I
x
Y) 3000
I
20
00
1000
I
oz, I I
0 1000 2000 3000 4000 5000 6000 7000 8000 9000
NORMAL STRESS [PSF]
SAMPLE: B-5 at 15 ft. PEAK ULTIMATE
ALLUVIUM: brown Well Graded Sand (SW) PC711
0.0 ° 40.00
sample obtained with California Sampler) 0 PSF 0 PSF
IN-SITU AS-TESTED
STRAIN RATE: 1 0.0080 IN/MIN 113.2 PCF 113.2 PCF
(Sample was inundated,consolidated, and drained) EZI 6.2 % 18.1 %
Project No. 0860-002-00
=G e o t e c hn i c s DIRECT SHEAR Document No. 05-0597
Incorporated TEST RESULTS
FIGURE C-16
f
APPENDIX D
i SEISMIC ANALYSIS
Seismic analysis was conducted for the subject site in order to develop parameters for structural
design. This appendix presents the raw data from our analysis from three commercially
available computer programs, EQFAULT, EQSEARCH, and FRISKSP (Blake, 2000). All three
analyses used the same published attenuation relationship for soil sites and for rock sites (Sadigh
et al, 1997).
EQFAULT: The program EQFAULT was used to develop the deterministic peak ground
acceleration parameters presented in Tables 1 and 2 of the report.
EQSEARCH: The program EQSEARCH was used to generate a table of estimated
characteristics of nearby seismic events, which were recorded between 1800 and 2000. This
1 table is presented in Appendix D, and shows the epicenters, magnitudes, and dates of these
nearby earthquakes, along with the estimated peak ground acceleration for the site, and a
recurrence curve generated from the data.
FRISKSP: The program FRISKSP was used to perform a probabilistic analysis of seismicity at
the subject site based on the characteristic earthquake distribution of Youngs and Coppersmith
(1985). The results are also presented in Appendix D. The probabilistic analysis was used to
estimate the Design Basis Earthquake at the site for use in structural design. Note that the first
set ofgraphs does not incorporate Magnitude Weighting Facto
rs, and represents the probabilistic
values presented in the text of this report. The second set of graphs incorporates Magnitude
Weighting Factors for use in liquefaction analysis.
Geotechnics Incorporated
***********************
* E Q F A U L T
* *
* Version 3 .00
* *
***********************
DETERMINISTIC ESTIMATION OF
PEAK ACCELERATION FROM DIGITIZED FAULTS
JOB NUMBER: 0860-002-00
DATE: 08-07-2005
JOB NAME: Nichols Road Project - Soil
CALCULATION NAME: Nichols Road Project - Soil
FAULT-DATA-FILE NAME: C:\Program Files\EQFAULTI\Comgeg03.dat
SITE COORDINATES:
SITE LATITUDE: 33 .7069
SITE LONGITUDE: 117.3513
SEARCH RADIUS: 62 .14 mi
ATTENUATION RELATION: 20) Sadigh et al. (1997) Horiz. - Soil
UNCERTAINTY (M=Median, S=Sigma) : M Number of Sigmas : 0.0
DISTANCE MEASURE: clodis
SCOND: 0
Basement Depth: 5.00 km Campbell SSR: Campbell SHR:
COMPUTE PEAK HORIZONTAL ACCELERATION
FAULT-DATA FILE USED: C:\Program Files\EQFAULTI\Comgeg03 .dat
MINIMUM DEPTH VALUE (km) : 0.0
I
f
CALIFORNIA FAULT MAP
1100 Nichols Road Project - Soil
I`+
I.
1000
900
If
800 --
i(
700
600
500
400
300
200
100 da
� S E
o .
0
-100 i
-400 -300 -200 -100 0 100 200 300 400 500 600
CALIFORNIA FAULT MAP
Nichols Road Project- Soil
200
150
100 \
SITE
50
0
-50
-100
150 200 250 300 350 400
1
---------------
/ EQFAULT-SUMMARY
( -----------------------------
DETERMINISTIC SITE PARAMETERS
-----------------------------
j Page 1
( -----------------------------------------------------------
ESTIMATED MAX. EARTHQUAKE EVENT
APPROXIMATE I ------------------------------ -
ABBREVIATED I DISTANCE MAXIMUM I PEAK JEST. SITE
FAULT NAME I mi (km) IEARTHQUAKE1 SITE JINTENSITY
MAG. (Mw) ACCEL. g JMOD.MERC.
ELSINORE-GLEN IVY I 1.7 ( 2 .7) 1 6.8 0
I - ----=____
.476 I X
ELSINORE-TEMECULA 3 .2 ( 5. 1) 1 6. 8 I 0.402 I X
CHINO-CENTRAL (ELSINORE) I 15.0 ( 24 .1) 1 6.7 ( 0.193 I VIII
I WHITTIER I 19.3 ( 31. 1) 1 6.8 I 0.124 I VII
SAN JACINTO-SAN JACINTO VALLEY I 19.6 ( 31.6) 1 6.9 0. 130 I VIII
SAN JACINTO-SAN BERNARDINO I 22.2 ( 35.7) 1 6.7 ( 0.101 I VII
SAN JACINTO-ANZA I 25.0 ( 40.3) 1 7.2 I 0. 121 I VII
NEWPORT-INGLEWOOD (OFFSHORE) I 28.4 ( 45.7) I 7.1 I 0. 100 I VII
ELSINORE-JULIAN I 30.0 ( 48.2) I 7.1 I 0.094 I VII
SAN ANDREAS - SOUTHERN I 31.6 ( 50. 8) l 7.4 I 0.107 I VII
SAN ANDREAS - SAN BERNARDINO I 31.6 ( 50.8) 1 7.3 I 0.101 I VII
CUCAMONGA I 33 .3 ( 53.6) I 7. 0 I 0.100 I VII
NEWPORT-INGLEWOOD (L.A.BASIN) I 33 .7 ( 54 .2) 1 7.1 I 0.082 I VII
ELYSIAN PARK THRUST I 33 .8 ( 54.4) 1 6.7 0.079 I VII
fSAN JOSE I 34.0 ( 54.7) 1 6.5 0. 068 I VI
SIERRA MADRE 1 36.4 ( 58.6) I 7. 0 I 0.090 ( VII
{ COMPTON THRUST I 36.8 ( 59.3) 1 6.8 0.076 I VII
NORTH FRONTAL ZONE (WEST) I 38 .8 ( 62.5) I 7. 0 1 0.083 I VII
CLEGHORN 1 39.5 ( 63 .5) 1 6.5 I 0. 043 I VI
ROSE CANYON I 40.1 ( 64.5) 1 7.2 0.072 I VI
t SAN ANDREAS - MOJAVE I 42 .9 ( 69.1) 1 7. 1 I 0.061 I VI
I1 SAN ANDREAS - 1857 RUPTURE I 42 .9 ( 69.1) 1 7 .8 I 0.099 I VII
PINTO MOUNTAIN 43 .5 ( 70.0) 1 7. 0 I 0. 056 I VI
PALOS VERDES I 43 .9 ( 70.6) I 7.1 I 0. 060 I VI
CORONADO BANK I 44 .9 ( 72 .2) I 7.6 I 0.083 I VII
I CLAMSHELL-SAWPIT I 46.5 ( 74.9) I 6.5 I 0.044 I VI
NORTH FRONTAL ZONE (EAST) I 48 .0 ( 77.2) I 6.7 I 0.050 I VI
RAYMOND I 49.2 ( 79.2) I 6.5 1 0.041 I V
SAN JACINTO-COYOTE CREEK I 50 .3 ( 81.0) I 6. 8 I 0.040 I V
SAN ANDREAS - COACHELLA I 53 .2 ( 85 .6) I 7. 1 I 0 .046 VI
HELENDALE - S. LOCKHARDT I 53 .6 ( 86.2) I 7. 1 I 0.046 I VI
VERDUGO I 54 .6 ( 87 .9) I 6. 7
EARTHQUAKE VALLEY I 0.042 I VI
I 57 .2 ( 92 .1) I 6.5 I 0 . 026 I V
SAN DIEGO TROUGH I 57 .2 ( 92 .1) I 7.7 0 .066 VI
I HOLLYWOOD 58 .0 ( 93 .3) I 6.4 I 0.030 I V
BURNT MOUNTAIN I 58 .4 ( 94 .0) I 6.4 0.023 I IV
LENWOOD - OLD WOMAN SPRINGS 1 60 .8 ( 97 .8) I 7 .3 I 0. 046 VI
EUREKA PEAK 1 61.1 ( 98 .4) I 6.4 I 0 .021 I IV
i
-END OF SEARCH- 38 FAULTS FOUND WITHIN THE SPECIFIED SEARCH RADIUS.
i
THE ELSINORE-GLEN IVY FAULT IS CLOSEST TO THE SITE.
IT IS ABOUT 1.7 MILES (2 .7 km) AWAY.
LARGEST MAXIMUM-EARTHQUAKE SITE ACCELERATION: 0.4757 g
I
i
i
*************************
* E Q S E A R C H
* *
* Version 3 .00
* *
*************************
ESTIMATION OF
PEAK ACCELERATION FROM
CALIFORNIA EARTHQUAKE CATALOGS
i
JOB NUMBER: 0860-002-00
DATE: 08-07-2005
JOB NAME: Nichols Road Project - Soil
EARTHQUAKE-CATALOG-FILE NAME: C:\Program Files\EQSEARCH\Allquake.dat
f
MAGNITUDE RANGE:
MINIMUM MAGNITUDE: 4.00
MAXIMUM MAGNITUDE: 9.00
SITE COORDINATES:
SITE LATITUDE: 33.7069
SITE LONGITUDE: 117.3513
SEARCH DATES:
j START DATE: 1800
END DATE: 2000
SEARCH RADIUS:
62.1 mi
100.0 km
ATTENUATION RELATION: 20) Sadigh et al. (1997) Horiz. - Soil
UNCERTAINTY (M=Median, S=Sigma) : M Number of Sigmas : 0.0
ASSUMED SOURCE TYPE: SS [SS=Strike-slip, DS=Reverse-slip, BT=Blind-thrust]
SCOND: 0 Depth Source: A
Basement Depth: 5 . 00 km Campbell SSR: Campbell SHR:
COMPUTE PEAK HORIZONTAL ACCELERATION
MINIMUM DEPTH VALUE (km) : 0.0
EARTHQUAKE EPICENTER MAP
1100
Nichols Road Project- Soil
-
1000
900 \
800
700 -
600
500 \ 1
400 --
300 --
200
LEGEND
M =4
100 - M - 5 S
-- M = 6
M = 7
0 � M = 8 IJ
- z4.
-100
-400 -300 -200 -100 0 100 200 300 400 500 600
EARTHQUAKE EPICENTER MAP
Nichols Road Project- Soil
150
XI
100 --
x
50 --
x
0 --
-50
-100 --
-150
100 150 200 250 300 350
i
EARTHQUAKE SEARCH RESULTS
-------------------------
Page 1
- -------- ------ -------------------------------- __
j I I I I TIME I I - I SITE ISITEI APPROX. -
FILEI LAT. I LONG. I DATE I (UTC) I DEPTH IQUAKE I ACC. I MM I DISTANCE
CODEI NORTH I WEST I I H M S e c I (km) I MAG I g IINT. I mi [km]
-------------------------------------------------------------------------------
DMG I33.7000I117 .4000I05/13/1910I 620 0 .01 0.01 5 .00I 0.163 IVIIII 2 . 8( 4.6)
DMG I33.7000I117.4000104/11/1910I 757 0 .01 0.01 5.00I 0. 163 IVIIII 2 . 8( 4.6)
DMG I33.7000I117 .4000I05/15/1910I1547 0 .01 0.01 6.00I 0.296 I IX I 2.8 ( 4.6)
DMG I33.7330I117.4670I10/26/1954I162226.0I 0.01 4.101 0.045 I VI I 6.9( 11.1)
DMG I33 .7480I117.4790I06/22/1971I104119.OI 8.0I 4.201 0.043 I VI I 7.9( 12.6)
DMG I33 .7250I117 .4980I01/03/1956I 02548 .91 13 .71 4 .701 0.058 I VI I 8 .5( 13.7)
DMG I33 .7170I117 .5070I08/06/1938I22 056 .0I 10.01 4.00I 0.032 I V I 9.0( 14.4)
DMG 133 .83301117 .4000106/05/19401 82727 .0I 0.01 4.00I 0.031 I V I 9.1( 14.7)
DMG (33 .6990I117 .5110I05/31/1938I 83455 .41 10.01 5.501 0.100 I VIII 9.2( 14.8)
DMG I33.7170I117 .5170I06/19/1935I1117 0 .01 0.01 4.00I 0.030 I V I 9.5( 15.3)
DMG I33 .7380I117 .1870I04/27/1962I 91232 .11 5.71 4.101 0.032 I V I 9.7( 15.6)
DMG I33 .6820I117 .5530I07/05/1938I18 655 .71 10.01 4.501 0.035 I V 111.7( 18.8)
DMG I33 .7000I117 .1000I06/11/1902I 245 0 .01 0.01 4.501 0.028 I V 114.4( 23.2)
1 DMG I33 .9330I117 .3670I10/24/1943I 02921.0I 0.01 4.001 0. 016 I IV 115.6( 25.2)
MGI I33 .8000I117 .6000I04/22/1918I2115 0 .01 0.01 S-001 0.038 I V 115 .7 ( 25.2)
DMG I33 .8000I117 .6000I09/16/1903I1210 0 .01 0.01 4.00I 0.016 IV 115.7 ( 25.2)
DMG I33.9000I117.2000I12/19/1880I 0 0 0 .01 0.01 6.00I 0.085 ( VIII 15.9( 25.6)
DMG I33 .7500I117 .0000I06/06/191812232 0 .01 0.01 5.00I 0.028 I V 120.4 ( 32.8)
DMG I33 .7500I117 .0000I04/21/19181223225 .0I 0.01 6.80I 0. 117 ! VIII 20.4 ( 32.8)
MGI I34. 0000I117 .4000I05/22/1907I 652 0 .01 0.01 4.601 0.019 I IV 120.4 ( 32.9)
DMG 133 .99601117 .2700102/17/19521123658 .31 16.0I 4.501 0.018 I IV 120.5 ( 33.0)
DMG I34.0000I117 .2830I11/07/1939I1852 8 .41 0.01 4.701 0.021 IV 120.6( 33.2)
T-A I34.00001117 .4200I04/12/1888I1315 0 .01 0.01 4.301 0.015 I IV 120.6( 33.2)
T-A I34 .0000I117 .4200I09/10/1920I1415 0 .01 0.01 4.301 0.015 I IV 120.6( 33.2)
DMG I34 .0000I117 .2500I11/01/1932I 445 0 .01 0.01 4.00I 0.011 I IIII 21.0( 33.9)
DMG J34.00001117 .2500107/23/19231 73026 .01 0.01 6.251 0.076 I VIII 21.0 ( 33.9)
DMG I33 . 8000I117 .0000I12/25/1899I1225 0 .01 0.01 6.401 0.086 I VIII 21.2 ( 34.1)
DMG 133 .9500I117 .5830I04/11/1941I 12024 .0I 0.01 4.00I 0.011 I IIII 21.4( 34.4)
T-A 133 .5000I117 .0700I12/29/1880I 7 0 0 .01 0.01 4.301 0.014 I IV 121.6( 34.7)
DMG 134. 00001117 .5000107/03/190811255 0 .01 0. 01 4.00I 0.010 I IIII 22 .0( 35.3)
MGI 134.00001117 .5000112/16/1858110 0 0 .01 0.01 7.00I 0.123 I VIII 22 .0( 35.3)
PDP I33 .8060I117 .7150I03/07/2000I002028 .21 11.01 4.00I 0.010 I IIII 22 .0( 35.3)
DMG I34 . 0330I117 .3500I04/18/1940I184343 .91 0.01 4.401 0.014 I IV 122 .5( 36.2)
DMG 134. 0330I117 .3170109/03/1935I 647 0 .01 0.01 4.501 0.016 I IV 122 .6( 36.4)
PAS 134. 02301117 .2450110/02/19851234412 .41 15.21 4.801 0.020 I IV 122 .7( 36.5)
GSP I34 .0240I117 .2300I03/11/1998I121851 .8I 14.0I 4.501 0.015 I IV 123 .0 ( 37.0)
PDP 134 .04701117 .2550102/21/20001134943 .11 15 .0I 4.501 0.014 I IV 124 .1( 38.8)
DMG I34 . 0430I117 .2280I04/03/1939I 25044 .71 10 .01 4 .00I 0.009 I IIII 24.3 ( 39.0)
DMG I33 . 7100I116 .9250I09/23/1963I144152 .61 16.5I 5.00I 0.022 I IV 124 .5( 39.4)
DMG I33 .5000I117 .0000I08/08/1925I1013 0 .01 0. 01 4.501 0.014 I IIII 24.7 ( 39.8)
DMG I33 . 8540I117 .7520I10/04/1961I 22131 .61 4 .31 4.101 0.009 I IIII 25.l( 40.4)
T-A I34 . 0800I117 .2500I10/07/18691 0 0 0 .01 0.01 4.301 0.010 I IIII 26.4 ( 42.5)
I MGI 133 . 80001117 .8000111/10/192611723 0 .0 0.0 4.601 0 .014 I IIII 26.5( 42.7)
MGI 133 . 80001117 .8000105/20/19171 945 0 . 0 0. 0 4.00I 0.008 I II 126.5 ( 42.7)
MGI 133 . 80001117 .8000111/04/192612238 0 . 01 0 .01 4.601 0.014 I IIII 26.5 ( 42.7)
MGI 133 . 80001117 .8000111/09/192611535 0 . 01 0 .01 4 .601 0.014 IIII 26.5( 42.7)
MGI 133 . 80001117 .8000105/19/19171 635 0 .01 0.01 4 .00I 0. 008 I II 126.5( 42.7)
` MGI 133 . 80001117 .8000105/19/19171 719 0 . 01 0.01 4.00I 0.008 I II 126.5( 42.7)
/ MGI I33 . 8000I117 .8000111/07/1926I1948 0 .01 0 . 01 4.601 0. 014 I IIII 26.5( 42.7)
GSP I33 .9510I117 .7090I01/05/1998I181406.5I 11. 0I 4.301 0.010 I IIII 26.5 ( 42.7)
MGI 133 . 80001116.9000112/18/192011726 0 .01 0 .01 4 .001 0.008 I II 26.7( 42.9)
MGI I33 . 8000I116.9000I06/14/1918I1024 0 .01 0 . 01 4.001 0 .008 I II 126.7( 42.9)
MGI I33 . 8000I116 .9000I04/29/1918I 2 0 0 . 01 0. 01 4.001 0. 008 I II 126.7( 42.9)
I
-------------------------
EARTHQUAKE-SEARCH-RESULTS
Page 2
1 --------- -- -- - - - -------------------------------------
I I
1 LONG. I DATE I TIME I I I SITE SITE APPROX.
FILE LAT. 1 1 (UTC) IDEPTHIQUAKEI ACC. I MM I DISTANCE
CODEI NORTH I WEST 1 I H M Sect (km) 1 MAG. 1 g IINT. I mi [km]
--- +-------+-- ------+----------+--- - -- --+-----+-----+-------+----+------------
I MGI � 33 . 80001116. 9000104/23/191811415 0 .01 0.01 4. 001 0.008 1 II 1 26.7 ( 42 .9)
DMG 133 . 76701117. 8170108/22/19361 521 0. 01 0. 01 4. 001 0 .008 1 II 1 27.1( 43 .5)
MGI 134. 10001117.3000107/15/1905I2041 0 . 01 0.01 S - 301 0 .025 1 V 1 27.3 ( 43.9)
DMG 134 . 10001117. 3000102/16/193111327 0 .01 0.01 4 . 001 0.008 I II 1 27.3 ( 43 .9)
MGI 134 . 10001117- 3000111/22/19111 257 0 . 01 0.01 4 . 001 0 .008 1 II 1 27.3 ( 43 .9)
MGI 134. 10001117-3000112/27/1901111 0 0 . 01 0.01 4. 601 0 .013 1 III1 27.3 ( 43.9)
I DMG 134 - 01701117. 0500102/19/1940112 655 . 71 0.01 4 . 601 0.013 1 II11 27.5 ( 44.3)
DMG 134 . 11201117-4260103/19/19371 12338 .41 10.01 4 . 001 0 .007 1 II 1 28.3 ( 45.5)
DMG 134. 11801117. 3410109/22/19511 82239. 11 11.91 4. 301 0.009 1 II11 28.4 ( 45.7)
MGI 134. 00001117- 7000112/03/19291 9 5 0. 01 0.01 4.001 0.007 1 II 1 28.4 ( 45.8)
DMG 133 . 54501117. 8070110/27/196911316 2 .31 6.51 4.501 0.011 i II11 28.5 ( 45.8)
MGI 134. 10001117.2000104/23/192312113 0.01 0.01 4.001 0.007 I II 1 28.5 ( 45.8)
DMG 134. 00001117.0000106/30/19231 022 0. 01 0.01 4.501 0.011 I II11 28.5 ( 45. 9)
DMG 133 .50001116. 9170111/04/19351 355 0.01 0.01 4.501 0.011 1 II11 28.8 ( 46.3)
! DMG 134. 12701117.3380102/23/19361222042 .71 10.01 4.501 0.011 1 II11 29.0 ( 46.7)
DMG 134. 11601117.4750106/28/1960120 048. 01 12.01 4.101 0.008 1 II 1 29.1( 46.9)
( PAS 133 . 70101116.8370108/22/19791 2 136.31 5.01 4.101 0.007 1 II 1 29.5 ( 47.5)
DMG 134. 13201117.4260104/15/1965120 833 .31 5.51 4.501 0.011 1 II11 29.7 ( 47.7)
DMG 134. 12401117.4800105/15/1955117 326. 01 7..61 4.001 0.007 1 II 1 29.7 ( 47.8)
USG 134 . 13901117.3860102/21/19871231530. 11 2 .61 4.071 0.007 1 II 1 29.9( 48.1)
j DMG 134 . 14001117.3390102/26/19361 93327.61 10.01 4.001 0.007 1 II 129.9( 48. 1)
PAS 134. 13501117.4480101/08/19831 71930.41 4.61 4. 101 0. 007 1 II 1 30.1( 48.4)
PAS 134 - 00601117.7390102/18/19891 717 4.81 3 .31 4.301 0.009 1 I211 30.3 ( 48. 8)
DMG 134. 12701117-5210112/27/1938110 928.61 10.01 4 .001 0.006 1 II 1 30.6( 49.2)
DMG 134 - 14001117.5150101/01/19651 8 418 . 01 5.91 4.401 0.009 1 II11 31.3 ( 50.4)
DMG 133 .45401116.8980107/29/19361142252 . 81 10.01 4. 001 0.006 1 II 1 31.4 ( 50.5)
DMG 133 .4.5601116.8960106/16/19381 55916. 91 10.01 4 .00I 0.006 1 II ( 31.4 ( 50.5)
MGI 133 . 70001117.9000107/08/19021 945 0. 01 0.01 4 .001 0.006 1 II 1 31.5 ( 50.7)
GSP 134 . 16801117.3370106/28/19971214525 .11 9.01 4.201 0.007 1 II 1 31.8 ( 51.2)
T-A 134 . 17001117.3200112/02/185912210 0. 01 0.01 4 .301 0.008 1 III1 32.0 ( 51.5)
GSP 133 . 62001117.9000104/07/19891200730 .21 13 . 01 4 .501 0.010 1 III1 32.1( 51.6)
MGI 133 . 80001117.9000105/22/19021 740 0.01 0. 01 4 .301 0. 008 1 II 1 32.1 ( 51.7)
DMG 133 . 96801116. 8820106/27/.19591162211. 11 13 . 81 4 . 00j 0. 006 1 II 1 32.4 ( 52.1)
DMG 134 .10001117.6830101/09/193411410 0 . 01 0.01 4 .50 � 0 . 009 1 III1 33.1 ( 53.3)
DMG 134 .10001117.6830101/18/19341 214 0 .01 0.01 4 . 001 0. 006 1 II 1 33.1( 53.3)
! DMG 133 .95001116. 8500109/28/19461 719 9.01 0.01 5. 001 0.014 1 IV 1 33.3 ( 53.6)
` GSP 134 .08501116. 9890106/30/19921214900 .31 3 .01 4 .401 0.008 1 II11 33 .4 ( 53.7)
GSP I34.19001117.3900112/28/19891094108. 11 15.01 4 .501 0.009 1 II11 33 .4 ( 53 .8)
DMG 134 .16701117.5330103/01/19481 81213 .01 0.01 4 .701 0. 011 1 III1 33 .4 ( 53.8)
GSP 134 . 09701116. 9960112/05/19971170438. 91 4. 0J 4 . 101 0 . 006 ( II 1 33 .8 ( 54.3)
DMG 134 .20001117.4000107/22/18991 046 0 . 01 0.01 5 .501 0 . 022 1 IV 1 34 .2 ( 55.0)
MGI 134 .20001117.3000104/13/191311045 0. 01 0.01 4 . 001 0. 005 1 II 134.2 ( 55.0)
DMG 134.18301117.5480109/01/19371163533 .51 10.01 4 .501 0 . 008 1 II11 34 .7( 55.9)
DMG 133 .65001116. 7500109/05/19501191956. 01 0 . 01 4 .801 0 . 011 1 II11 34 .8 ( 55.9)
MGI 133 . 50001116. 8000106/02/19171 435 0 . 01 0. 01 4 .001 0 . 005 1 II 1 34 .8 ( 56.0)
MGI 133 .50001116-8000103/30/1918116 5 0. 01 0 . 01 4 .601 0 . 009 1 III1 34 .8 ( 56.0)
MGI 133 - 50001116. 8000105/31/19171 435 0 . 01 0 . 01 4 . 001 0. 005 1 II 1 34.8 ( 56.0)
MGI 133. 50001116. 8000111/26/1916117 5 0 . 01 0. 01 4 .001 0 . 005 1 II 1 34.8 ( 56.0)
GSP 134 . 11001117.7200104/17/19901223227. 21 4. 01 4 .601 0. 009 1 III1 34 .9 ( 56.2)
GSP 134 . 12001116. 9980106/29/19921144126. 01 4 . 01 4 .401 0. 008 1 II 1 35 .0 ( 56.3)
DMG 134 . 20001117.5000106/14/189211325 0. 01 0. 01 4 .901 0 . 012 I I111 35.1( 56.5)
GSP 133 . 65001116. 7400112/02/19891231647. 81 14. 01 4 .201 0. 006 1 II 1 35.3 ( 56.9)
GSP 134. 13001117. 7000103/01/19901003457. 11 4 . 01 4 . 001' 0. 005 1 II 135.4 ( 56.9)
i
---------------------- ---
EARTHQUAKE SEARCH RESULTS
--- ----------------------
Page 3
------------------------------------------------ ------ -----_ _
1 1 1 SITE ISITEI APPROX.
I FILET LAT. I LONG. I DATE I (UTC) 1DEPTHIQUAKEI ACC. I MM I DISTANCE
CODE1 NORTH I WEST I I H M Secl (km) l MAG 1 g 11NT. 1 mi [km]
----+-------+--------+----------+-------- __
DMG 134. 18301117.5830110/03/19481 24628. 01 0.01 4 .001 0. 005 1 II 1 35.4 ( 57. 0)
PAS 133 . 9650I117. 8860101/01/19761172012.91 6.21 4 .201 0. 006 1 II 1 35.5 ( 57. 1)
GSP 134.14001117.6900103/02/19901172625.41 6.OI 4 .601 0.009 1 II11 35.6( 57.4)
DMG 134.2170I117.4670103/25/1941I234341. 01 0 .01 4 .001 DMG 0. 005 1 II 1 35.8 ( 57.7)
33 .6170I117.9670103/11/1933I 154 7. 81 0.01 6.301 0.041 1 V 1 35.9( 57.8)
DMG 133 .26701117. 0170106/07/193511633 0. 01 0.01 4 .001 0.005 I II 1 36.0 ( 57.9)
1 GSP 134. 1400I117.7000102/28/1990I234336.61 S.Of 5 .20I 0.015 I IV 1 36.0 ( 57.9)
PAS 134. 13601117.7090106/26/1988115 458.51 7.91 4 .60I 0.009 1 IIII 36.0( 58.0)
DMG 133 .66501117.9790110/20/19611214240.71 7.21 4 .001 0.005 1 II 1 36.2 ( 58.2)
DMG 134.21101117.5300109/01/1937I1348 8.21 10.01 4.501 0.008 1 II21 36.3 ( 58.4)
PAS 134 .2110I117.5300110/19/1979I122237. 81 4.91 4 .101 0.005 1 II 1 36.3 ( 58.4)
DMG 133 .48801116.7770106/12/1959111 313.0I 5.71 4 .001 0.005 1 II 1 36.3 ( 58.4)
DMG, 133 .6590I117.9810110/20/1961120 714.51 6.11 4.001 0.005 I II 136.3 ( 58.5)
DMG 133 .9670I116.8000109/07/19451153424.01 0.01 4 .301 0.007 I II 1 36.4( 58.5)
GSP 134. 1920I117. 0950104/06/19941190104. 1I 7.01 4 .801 0.010 1 II11 36.6( 58.8)
GSP 133 .63201116.7190107/19/19991220927.51 14.01 4 .201 0.006 1 II 1 36.7( 59.1)
DMG 133 .68001117.9930111/20/19611 85334.71 4.41 4 .001 0.005 1 II 1 36.9( 59.4)
DMG 134.20001117. 1000109/20/19071 154 0.01 0.01 6.001 0.030 1 V 1 37.0( 59.5)
DMG 133 .65401117.9940110/20/19611194950.51 4 .61 4 .301 0.006 i II 1 37.1( 59.7)
GSP 134 . 15001117.7200103/01/19901032303.01 11.01 4 .70I 0.009 1 II11 37.2 ( 59.8)
( GSP 134 .11201116. 9200110/01/1998I181816.OI 4 .01 4 .701 DM 0.009 1 IIII 37.3 ( 60.1)
f G 134 .1330I116.9500106/10/193811440 0.01 0.01 4 .O01 0.005 1 II 1 37.3 ( 60.1)
DMG 133.75001118.0000111/16/193412126 0.01 0.01 4 .001 0.005 1 III 37.4 ( 60.1)
DMG 134.10001117.8000103/31/193112033 0.01 0 .01 4.001 0. 005 60.2)
I II ( 37.4 (
(� DMG 133 . 91701116.7500101/25/193311444 0.01 0 .01 4 .001 0.005 1 III 37.4 ( 60.2)
f DMG 133 .57501117.9830103/11/19331 518 4. 01 0 .01 5.201 0.014 1 IV 1 37.4 ( 60.2)
GSP I34.12101116.9280108/16/19981133440.21 6.01 4.701 0 . 009 1 IIII 37.5 ( 60.3)
DMG 133.56701117.9830104/17/193411833 0. 01 0 .01 4 .001 0.005 1 II 1 37.6( 60.5)
DMG 133.56701117.9830107/07/193711112 0.01 0.01 4.001 0.005 1 II 1 37.6( 60.5)
PAS 134 . 15101116.9720111/20/19781 655 9.51 6.11 4 .301 0.006 1 II 1 37.6( 60.5)
GSP 134.18001117.0200112/04/19911081703 .51 11.01 4 .001 0.005 1 II 1 37.8 ( 60.8)
1 DMG 133. 80001118. 0000110/21/19131 938 0.01 0.01 4 .001 0.005 1 II 1 37.8 ( 60.8)
DMG 133.93301116.7500I10/28/19441183016.01 0.0I 4.401 0 .007 1 II 1 37.9( 60.9)
DMG 133.93301116.7500108/06/19381 228 001 0.01 4 .001 0.005 1 II 1 37.9( 60.9)
DMG 133 . 97601116.7750110/17/19651 94519. 01 17.01 4 .901 0.011 1 II11 37.9( 61.0)
DMG I33 . 80001116.7000108/11/1911I1820 001 0.01 4.001 0.005 1 II 1 37.9( 61.0)
DMG 133.80001116.7000I08/11/1911I2340 0 *01 0.01 4.501 0.007 1 II 1 37.9( 61.0)
DMG 133 .60001118.0000103/11/19331 217 0. 01 0.01 4.501 0.007 1 II 1 38.0 ( 61.2)
DMG 133 . 60001118.0000103/11/19331 231 0. 01 0. 01 4 .401 0 .007 1 II 1 38.0 ( 61.2)
DMG 133 . 67101118.0120110/20/19611223534.21 5.61 4.101 0 .005 1 II 1 38.0 ( 61.2)
DMG 133 . 97301116.7690106/10/19441111531.91 10.01 4 .001 0 .005 1 II 1 38 .1( 61.3)
I DMG 134. 16701116.9830110/16/195111241 5.01 0. 01 4.001 0 .005 1 II 1 38.1( 61.4)
DMG 134. 1000I116.8830I10/24/193511451 0.01 0.01 4.501 0 .007 1 II 1 38.2 ( 61.4)
DMG 134. 10001116.8830I10/24/193511452 0.01 0.01 4.501 0.007 1 II ( 38.2 ( 61.4)
DMG 134. 10001116. 8830110/24/193511527 0. 01 0.01 4 .001 0 .005 1 II 1 38.2 ( 61.4)
I DMG 133 .61701118 .0170103/14/1933119 150 . 01 0.01 5.101 0 .013 1 IIII 38.8 ( 62.4)
DMG I33 .61701118 .0170I03/15/19331111332 . 01 0 .01 4.901 0 . 010 1 IIII 38 .8 ( 62.4)
DMG 133 .6170I118 .0170I10/02/193311326 1.01 0 .01 4.00I 0.005 1 I 138.8 ( 62.4)
DMG I33 .60001118 .0170112/25/1935I1715 O. OI 0.01 4.501 0 . 007 1 II 1 39.0 ( 62.7)
DMG I33 . 95001116.7330104/26/19421151023 . 01 0.01 4.001 0 .004 1 I 1 39.2 ( 63 .1)
DMG 134. 02901116.7870104/30/19541 03623 .91 11.11 4.201 0. 005 1 II 1 39.3 ( 63 .2)
DMG 134. 01401116.7710I06/10/19441111150. 51 10.01 4.501 0.007 1 II 1 39.4 ( 63 .5)
DMG 133. 61701118.0330105/21/19381 944 0. 01 0 .01 4.001 0 .004 1 I 1 39.7 ( 63. 8)
I
I -- -----------------------
EARTHQUAKE SEARCH RESULTS
---- ---------------------
Page 4
TIME 1 I SITE 1SITE1 APPROX.
FILEI LAT. I LONG. I DATE (UTC) IDEPTHIQUAKEI ACC. I MM DISTANCE
CODEI NORTH I WEST I ( H M Secl (km) 1 MAG. 1 g IINT. 1 mi [km]
I ----+-------+--------+----------+--------+-----+-----+-------+----+------------
DMG 134.2670I117 .5180109/12/1970I141011.21 8 .01 4 .101 0. 005 II 1 39.8 ( 64. 1)
DMG 133.91701116.7000111/17/19431112841. 01 0.01 4.501 0.007 II 1 40.1( 64.5)
1 DMG I33.68301118 .0500103/11/1933I1250 0 .01 0.01 4.401 0.006 I II 1 40.2 ( 64.6)
DMG 133. 68301118 -0500103/11/19331 658 3-01 0.01 5 .501 0.017 I IV 140.2 ( 64.6)
DMG 134.27001117 .5400109/12/19701143053 .01 8 .01 5.401 0.016 I IV 140.3 ( 64.9)
MGI 133.20001117 .0000107/20/19231 7 0 0.01 0.01 4 .001 0.004 I 140.4 ( 65.1)
DMG I33 .48301116.7000112/28/19481125341.01 0.01 4 .001 0.004 1 I 140.5( 65.2)
I DMG 133.97601116.7210106/12/19441104534.71 10.01 5 .10I 0.012 1 IIII 40.6( 65.4)
PAS 133.5580I116.6670106/15/1982I234921.31 12 .21 4.801 0.009 1 Il11 40.7 ( 65.4)
I PAS 134. 1980I116.9590I04/01/1978I105227.41 8.01 4 .001 0.004 1 I 1 40.7( 65.5)
GSP 134. 1780I116.9220I06/28/19921170131.91 13 .01 4 .701 0.008 1 IIII 40.8( 65.6)
DMG 134.18001116.9200101/16/19301 02433 .91 0.01 5.20I 0.013 I IIII 41.0( 65.9)
DMG 134. 18001116.9200101/16/19301 034 3 .61 0.01 5.10I 0.012 1 IIII 41.0( 65.9)
( DMG 133. 99601117.9750106/15/19671 458 5.51 10.01 4 .101 0.005 1 II 1 41.0( 65.9)
1 PAS 133-97601116.7130108/06/19841 81436.61 14.21 4 .301 0.005 1 II 1 41.0( 66.1)
DMG 133.70001118.0670102/08/19401165617.01 0.01 4 .001 0.004 1 I 1 41.1( 66.2)
DMG 133.70001118.0670103/11/19331 85457.01 0.01 5 .101 0.012 1 IIII 41.1( 66.2)
DMG 133.70001118.0670107/20/19401 4 113 .01 0.01 4.00 0.004 1 I 1 41.1( 66.2)
DMG 133.70001118-0670103/11/19331 51022 .01 0.01 5.101 0.012 I IIII 41.1( 66.2)
GSP 134.14101116.8570109/19/19971223714 .51 10.01 4 .101 0.005 I I 1 41.2 ( 66.4)
j DMG 134.28101117.5520109/13/19701 44748 .61 8.01 4 .401 0.006 1 II 1 41.3 ( 66.4)
DMG I34.10001116.8000110/24/193511448 7.61 0.01 5.101 0. 011 I II11 41.6( 67.0)
DMG 133. 99401116.7120106/12/19441111636.01 10.01 5.30I 0.014 ( IIII 41.7( 67.1)
DMG 133 . 98101116.7020106/12/19441222119.51 10.01 4 .201 0.005 1 II 1 41.8( 67.2)
DMG 134.3000I117.5000I07/22/189912032 0.01 0.01 6.501 0.040 1 V 1 41. 8( 67.3)
1 DMG 133 .56101118.0580101/15/19371183547.01 10.01 4 .001 0. 004 1 I 1 41.9( 67.4)
DMG 133 .75001118.0830103/11/19331 347 0.01 0.01 4 .101 0.004 1 I 1 42 . 1( 67.8)
DMG 133 .75001118-0830103/12/1933115 2 0.01 0.01 4.201 0.005 1 II 1 42. 1( 67.8)
DMG 133 . 75001118-0830104/01/19331 642 0.01 0.01 4 .201 0. 005 1 II 1 42 .1( 67.8)
DMG I33 .75001118 . 0830103/11/19331 8 8 0.01 0.01 4 .501 0.006 1 II 1 42.1( 67.8)
DMG 133 .75001118.0830103/11/19331 2 9 0 01 0.01 5 .001 0.010 1 II11 42 .1( 67.8)
DMG 133 .75001118.0830103/11/19331 611 0.01 0.01 4 .401 0.006 1 II 1 42 . 1( 67.8)
DMG 133 .75001118. 0830103/15/19331 2 8 0.01 0.01 4 .101 0.004 1 I 1 42 .1( 67.8)
DMG 133 . 75001118.0830104/02/19331 8 0 0.01 0.01 4 .001 0.004 1 I 1 42. 1( 67.8)
f DMG 133 . 75001118.0830103/12/19331 835 0.01 0.01 4 .201 0.005 1 II 1 42. 1( 67.8)
DMG 133 .75001118.0830103/12/19331 546 0.01 0.01 4 .40I 0.006 I II 1 42.1( 67.8)
DMG 133 .75001118.0830103/12/19331 034 0 .01 0.01 4 .001 0.004 1 I 142 .1( 67.8)
DMG 133 .75001118.0830103/11/1933123 5 0.01 0.01 4.201 0.005 1 II 1 42 . 1( 67.8)
DMG 133 .75001118.0830103/11/19331 832 0 .01 0.01 4 .201 0.005 1 II 142 .1( 67.8)
DMG 133 .75001118 . 0830I03/11/1933I1357 0 .01 O. OI 4 .001 0.004 1 I 1 42. 1( 67.8)
DMG 133 .75001118. 0830103/12/19331 6 1 0. 01 0.01 4 .201 0.005 1 II 1 42 . 1( 67.8)
DMG 133 . 75001118.0830103/12/19331 616 0 . 01 0.01 4 .601 0.007 1 II 142 . 1( 67.8)
DMG 133 . 75001118.0830103/15/19331 432 0 .01 0.01 4 . 10I 0 .004 1 I 1 42 . 1( 67.8)
DMG 133 . 75001118 .0830103/15/19331 540 0 .01 0.01 4 .20I 0.005 1 II 1 42 . 1( 67. 8)
DMG 133 .75001118 .0830103/11/19331 837 0 .01 0.01 4. 00I 0.004 1 I 1 42 . 1( 67. 8)
DMG 133 . 75001118.0830103/11/19331 926 0 .01 0.01 4 . 101 0.004 1 I 1 42 . 1( 67. 8)
DMG 133 .75001118.0830103/11/19331 911 0 .01 0.0I 4 .401 0.006 I II 1 42.1( 67.8)
DMG 133 .75001118 .0830103/11/19331 2 4 0 .01 0.01 4 . 901 0.009 1 I111 42 . 1( 67.8)
DMG 133 . 75001118.0830103/11/193311025 0.01 0.01 4 .001 0. 004 1 I 142 .1( 67.8)
DMG 133 . 75001118 .0830103/21/19331 326 0. 01 0.01 4.101 0.004 1 I 1 42 .1( 67.8)
DMG 133 .75001118.0830103/23/19331 840 0.01 0.01 4 .101 0.004 ( I 1 42 .1( 67.8)
DMG 133 . 75001118 .0830103/11/1933I 759 0.01 0 .01 4 .101 0.004 1 I 1 42 .1( 67.8)
DMG 133 . 75001118 .0830103/11/19331 2 5 0. 01 0.01 4 .30I 0.005 1 II 1 42 . 1( 67. 8)
EARTHQUAKE SEARCH RESULTS
-------------------------
Page 5
- --
1 1 SITE ISITEI APPROX.
FILE1 LAT. I LONG. DATE TIME
IDEPTHIQUAKEI ACC. I MM I DISTANCE
CODEI NORTH I WEST I I H M Secl (km) I MAG. 1 g IINT. I mi [km)
.4.f _ _+_---___ _-------+_---------+-------_+_____+____-}_____
DMG 133 . 75001118.0830103/11/193312240 0 . 01 0.01 4.401 0.006 II 1 42 . 1( 67. 8)
DMG, 133 . 75001118 .0830103/31/193311049 0 .01 0.0 ! 4. 101 0. 004 I I 42 .1( 67. 8)
r DMG 133 . 75001118 .0830103/11/193311141 0.01 0.01' 4.201 0. 005 I II 42.1( 67.8)
ll DMG 133 .75001118 .0830103/12/19331 448 0.01 0.01 4 .001 0.004 1 I ! 42 .1( 67.8)
DMG 133 .75001118 .0830103/12/19331 027 0. 01 0.01 4'.401 0.006 I II 1 42.1( 67.8)
DMG 133 .75001118 .0830103/14/193311219 0.01 0.01 4.501 0 .006 I II 1 42.1 ( 67.8)
1 DMG� 133 .75001118 .0830103/11/19331 336 0.01 0.01 4.001 0.004 I I 1 42 .1( 67.8)` DMG 133 .75001118 .0830103/11/19331 323 0.01 0.01 5.001 0.010 I II11 42.1( 67.8)
DMG 133.75001118 .0830103/14/193312242 0.01 0.01 4.101 0.004 1 I 1 42.1 ( 67.8)
DMG 133 .75001118.0830103/11/19331 339 0.01 0.01 4.001 0. 004 1 I 1 42.1( 67.8)
DMG 133 .75001118.0830103/11/193312232 0.01 0.01 4.101 0.004 I I 1 42 .1( 67.8)
DMG 133 .75001118.0830103/11/19331 910 0.01 0.01 5.101 0.011 I IIII 42 .1( 67. 8)
DMG 133.75001118 .0830103/12/193311738 0.01 0.01 4 .501 0.006 1 II 1 42.1( 67.8)
DMG 133 .75001118 .0830103/11/19331 524 0.01 0.01 4.201 0.005 I II 42.1( 67.8)
DMG 133 .75001118 . 0830103/20/193311358 0.01 0.01 4.101 0.004 1 I 1 42 .1( 67.8)
DMG 133.75001118 .0830103/11/19331 521 0.01 0.01 4.401 0.006 1 II 1 42 .1( 67.8)
DMG I33.75001118 .0830103/23/193311831 0.01 0.01 4.101 0.004 1 I 1 42 .1( 67.8)
DMG 133.75001118 .0830103/30/193311225 0.01 0.01 4.401 0.006 I II 1 42.1 ( 67.8)
DMG 133.75001118 .0830103/11/19331 618 0.01 0.01 4.201 0.005 ( II 1 42 .1( 67.8)
DMG 133.75001118.0830103/13/19331 617 0.01 0.01 4.001 0 .004 I I 1 42 .1( 67.8)
DMG I33 .75001118.0830103/25/193311346 0.01 0.01 4.101 0.004 1 I 1 42 .1( 67.8)
DMG 133 .75001118.0830103/11/193311138. 0.01 0.01 4 .001 0.004 1 I 1 42 .1( 67.8)
DMG 133 .75001118.0'830103/14/19331 036 0.01 0.01 4.201 0.005 1 II 1 42 .1( 67.8)
DMG 133 .75001118 .0830103/11/193311147 0.01 0.01 4.401 0.006 1 II 1 42 .1( 67.8)
1 DMG 133. 75001118 .0830103/11/19331 635 0.01 0.01 4 .201 0.005 I II 1 42 .1( 67.8)
DMG 133 . 75001118.0830103/11/19331 751 0.01 0.01 4.201 0.005 ( II 1 42 .1( 67.8)
DMG 133.75001118 .0830103/12/19331 740 0 .01 0.01 4.201 0. 005 I II 1 42 .1( 67.8)
DMG 133.75001118 .0830104/02/193311536 0.01 0.01 4.001 0 .004 1 I 142 .1( 67.8)
DMG 133 .75001118 .0830103/11/19331 555 0.01 0.01 4.001 0.004 I I 1 42 .1( 67.8)
DMG 133 .75001118.0830103/11/193311129 0.01 0.01 4.001 0.004 I 1 42 .1( 67.8)
DMG 133 . 75001118.0830103/12/193311651 0. 01 0.01 4 .001 0.004 I 1 42 .1( 67.8)
DMG 133 . 75001118.0830103/12/193311825 0 .01 0.01 4 .101 0.004 I 1 42 .1( 67.8)
DMG 133 . 75001118 .0830103/11/19331 216 0.01 0.01 4.801 0.008 IIII 42 .1( 67.8)
DMG 133 .75001118 .0830103/11/19331 222 0 .01 0.01 4 .001 0.004 J I 1 42 .1( 67.8)
DMG 133.75001118 .0830103/11/19331 513 0.01 0.01 4 .701 0. 008 II 1 42 .1( 67.8)
DMG 133 .75001118 .0830103/11/19331 553 0 .01 0.01 4.001 0.004 1 I 1 42 .1( 67.8)
DMG 133 .75001118 .0830103/11/1933111 0 O.OI 0.01 4 .001 0.004 1 I 1 42 .1( 67.8)
DMG 133.75001118 .0830103/13/19331 432 0.01 0.01 4 .701 0. 008 1 II 1 42 .1( 67.8)
DMG 133. 75001118 .0830103/11/1933122 0 0.01 0.01 4 .401 0 . 006 1 II 1 42 .1( 67.8)
DMG 133 .75001118 .0830103/11/193312231 0 .01 0.01 4 .401 0. 006 1 II 1 42 .1( 67.8)
DMG 133.75001118 .0830103/13/193311929 0.01 0.01 4 .201 0 . 005 I II 142 .1( 67.8)
DMG 133 .75001118 .0830103/13/19331131828 .01 0.01 5.301 0. 013 1 II21 42 .1 ( 67.8)
DMG 133 .75001118 .0830103/11/19331 258 0 .01 0.01 4 .001 0. 004 1 I 1 42 . 1 ( 67.8)
DMG 133 .75001118 .0830103/11/19331 3 5 0 .01 0.01 4.201 0. 005 1 II 1 42 . 1 ( 67.8)
DMG 133 .75001118 .0830103/11/19331 3 9 0 .01 0.01 4 .401 0 . 006 1 II 1 42 . 1 ( 67.8)
DMG 133 .75001118 .0830103/11/19331 311 0 .01 0.01 4 .201 0. 005 1 II 1 42 . 1 ( 67.8)
DMG 133. 75001118 .0830103/12/193312128 0 .01 0.01 4 .101 0 . 004 1 I 1 42 . 1 ( 67.8)
DMG 133 .75001118 .0830103/13/19331 343 0.01 0.01 4.101 0 . 004 1 I 1 42 . 1 ( 67.8)
DMG 133. 75001118 .0830103/16/193311530 0 .01 0.01 4 .101 0. 004 I I 1 42 . 1( 67.8)
DMG 133. 75001118 .0830103/16/193311529 0 .01 0.01 4 .201 0. 005 1 II 1 42 . 1 ( 67.8)
DMG 133. 75001118 .0830103/17/193311651 0 .01 0. 01 4 .101 0 . 004 1 I 1 42 . 1( 67.8)
DMG 133. 75001118 .0830103/19/193312123 0 .01 0.01 4 .201 0 . 005 1 II 1 42 . 1 ( 67.8)
DMG 133 . 75001118 .0830103/18/193312052 0 .01 0.01 4 .201 0. 005 1 II J 42. 1 ( 67.8)
'I
-------------------------
EARTHQUAKE SEARCH RESULTS
-------------------------
Page 6
---------- -- -------------------------------------------------------------------
I I i I TIME I I I SITE ISITEI APPROX.
FILEI LAT. I LONG. I DATE I (UTC) IDEPTHIQUAKEI ACC. I MM I DISTANCE
CODEI NORTH I WEST I I H M Secl (km) I MAG. 1 g IINT. I mi [km]
----+-------+--------+----------+--------+-----+-----+-------+----+------------
DMG 133 .75001118. 0830103/11/193311045 0.01 0 .01 4.001 0 .004 I I 1 42.1( 67.8)
DMG I33 .75001118. 0830103/11/193311956 0.01 0.01 4 .201 0 .005 ( II 1 42 .1( 67.8)
DMG 133 .7500I118. 0830103/11/19331 210 0.01 0. 01 4 .601 0.007 I II 1 42 .1( 67.8)
DMG I33 .75001118.0830103/12/193312354 0.01 0.01 4 .501 0 .006 I II 1 42.1( 67.8)
DMG 133 .75001118. 0830103/13/193311532 0.01 0 .01 4. 101 0 .004 I I 1 42 .1( 67.8)
DMG 133 .75001118.0830103/11/19331 252 0.01 0.01 4 .001 0 .004 I I 1 42 .1( 67.8)
( DMG 133.75001118.0830103/11/19331 259 0.01 0.01 4.601 0.007 I II 1 42 .1( 67.8)
DMG 133 .75001118.0830103/11/19331 257 0.01 0. 01 4 .201 0 .005 I II 1 42.1( 67.8)
DMG I33 .75001118.0830103/11/193311653 0.01 0.01 4. 801 0 .008 I IIII 42.1( 67.8)
DMG I33 .75001118 . 0830103/11/193311944 0.01 0.01 4.001 0 .004 I I 1 42 .1( 67.8)
DMG 133 .75001118.0830103/11/19331 436 0.01 0.01 4.601 0.007 I II 1 42.1( 67.8)
DMG I33 .75001118.0830103/16/193311456 0.01 0.01 4.001 0.004 I I 1 42 .1( 67.8)
DMG 133 .75001118.0830103/11/19331 211 0.01 0.01 4.401 0 .006 I II 1 42.1( 67.8)
( DMG 133 .75001118.0830103/11/19331 227 0 .01 0.01 4. 601 0 .007 I II 1 42.1( 67.8)
DMG 133 .75001118.0830103/11/19331 515 0.01 0.01 4. 001 0 .004 I I 1 42.1( 67.8)
DMG 133 .75001118. 0830103/11/19331 230 0.01 0.01 5 . 101 0.011 I IIII 42.1( 67.8)
DMG I33 .75001118.0830103/11/193311547 0.01 0.01 4 . 001 0.004 I I 1 42 .1( 67.8)
! DMG 133 .75001118.0830103/11/19331 439 0.01 0.01 4. 901 0.009 I IIII 42 .1( 67.8)
DMG 133 .75001118.0830103/11/19331 440 0.01 0.01 4 . 701 0.008 I II 1 42 .1( 67.8)
DMG 133 .45001116.6830104/25/19551 25515.0I 0.01 4.00I 0.004 I I 142 .3 ( 68.1)
MGI 134.00001118.0000112/25/190311745 0.0 0.01 5. 001 0.010 I IIII 42 .3 ( 68.1)
MGI 134.00001118.0000105/05/19291 735 0.01 0.01 4 .001 0.004 I I 1 42.3 ( 68.1)
{ MGI 134.00001118.0000105/05/19291 1 7 0.01 0.01 4. 601 0.007 I II 1 42.3 ( 68.1)
GSP I34 .16301116.8550106/28/19921144321.01 6.01 5.301 0.013 I IIII 42.4( 68.3)
DMG 134 . 00001116.7000108/25/19441 73025.01 0.01 4.201 0 .005 I II 1 42.5( 68.3)
PAS 133 .42001116.6980106/05/1978116 3 3 .91 11.91 4 .401 0 .006 I II 1 42 .5( 68.4)
MGI 134 .20001116. 9000110/10/19151 5 6 0. 01 0.01 4 . 001 0 .004 I I 1 42.7( 68.8)
PAS 133 .97901116.6810112/16/19881 553 5.01 8.11 4 . 801 0 .008 I IIII 42 .8( 68.8)
DMG 133 .53301116.6330109/21/19421 7 754 .01 0.01 4 . 001 0.004 I I 1 43 .0 ( 69.2)
DMG 133 .73301118.1000103/11/1933115 9 0. 01 0 .01 4 .401 0 .006 I II 1 43 .0( 69.2)
DMG 133 .73301118 .1000103/11/193311350 0.01 0.01 4.401 0.006 1 II 1 43 .0 ( 69.2)
DMG I33 .73301118.1000103/11/193311447 0.01 0.01 4 .401 0 .006 I II 1 43 .0 ( 69.2)
DMG 134.30401117.5700105/05/1969116 2 9.61 8. 81 4 .401 0 .006 I II 1 43 .1( 69.3)
DMG 134.30001117.6000107/30/18941 512 0.01 0.01 6 . 001 0 .024 I V 1 43 .4 ( 69.8)
GSP I34 . 16301116. 8270106/28/19921150451.51 12 .01 4 .401 0 .006 I II 1 43 .5 ( 70.0)
(� PAS 133 .50801118.0710111/20/19881 53928.71 6.01 4.501 0.006 I II 1 43.6( 70.2)
` DMG 133 .80001116.6000109/10/19311 436 0.01 0.01 4 . 001 0.004 I I 1 43 .6( 70.2)
DMG 133 .50801116.6310108/11/19671 05711.41 10 .71 4 . 101 0.004 I I 1 43 .6( 70.2)
i DMG .133 . 95901116.6510109/23/19491214440. 11 12 .21 4 . 001 0 .004 I I 1 43.8( 70.4)
GSP I34 . 19501116. 8620108/17/19921204152 . 11 11.01 5 .301 0 .013 1 IIII 43 .8 ( 70.5)
DMG 133 . 96701118 . 0500101/30/19411 13446. 91 0. 01 4 . 101 0 .004 I I 1 43 .9( 70.7)
PAS 133 .47101118 . 0610102/27/19841101815. 01 6.01 4 . 001 0 .004 1 I 1 43 .9( 70.7)
I GSP 134,19801116. 8620108/18/19921094640 .71 12 .01 4 .201 0 .005 1 I 1 44 .0( 70.8)
DMG 133 .76701118. 1170111/04/193912141 0. 01 0. 01 4 . 001 0 .004 1 I 1 44.2 ( 71.1)
DMG 133 .61701118. 1170101/20/193412117 0. 01 0 .01 4 .501 0.006 1 II 1 44.4 ( 71.5)
DMG 134 .26701116. 9670108/29/19431 51630. 01 0. 01 4. 001 0.004 1 I 1 44.5 ( 71.6)
DMG 134 .26701116. 9670108/29/19431 35754. 01 0. 01 4 . 001 0 .004 1 I 1 44 .5 ( 71.6)
DMG 134 .26701116. 9670108/29/19431 34513 . 01 0.01 5 .501 0 .015 1 IV ( 44 .5( 71.6)
DMG 133 .46701116.6330102/20/193411035 0. 01 0.01 4 . 001 0 .004 1 I 1 44 .5 ( 71.6)
DMG 134 . 11701116.7500108/22/19421125913 . 01 0.01 4 . 001 0.004 1 I 1 44 .6( 71.8)
PAS 133 . 98901116. 6490107/17/19861203515. 01 6.21 4 . 001 0.004 1 I 1 44.7 ( 72 .0)
PAS 133 . 99101116. 6490107/17/19861215445.21 7.41 4 .401 0.005 i II 1 44 .8 ( 72.1)
DMG 133 .90001118. 1000107/08/192911646 6.71 13 .01 4 .701 0 .007 1 II 1 45.0 ( 72.4)
II
EARTHQUAKE SEARCH RESULTS
-------------------------
Page 7
-
--------------------------------
------
TIME 1 � � SITE ISITEI APPROX. -
FILEI LAT. LONG. I DATE 1 (UTC) IDEPTHIQUAKE1 ACC. I MM I DISTANCE
CODEI NORTH I WEST I I H M Secl (km) I MAG. 1----+-------+--------+-------- g (INT. 1 mi [km]
--+-------- _
DMG 133 .75001118. 1330103/11/1933111 4 0.01 0.01 4.601 0.006 I II 1 45. 0 ( 72.4)
DMG 133 .51701118. 1000103/22/19411 82240.01 0.01 4 .001 0.004 I 1 45.0 ( 72.4)
DMG 133 .78301118. 1330101/13/19401 749 7.01 0.01 4. 001 0.004 I I 1 45.2 ( 72.7)
DMG 133 .7830j118. 1330110/02/19331 91017.61 0.01 5.401 0 .013 I II11 45.2( 72.7)
I DMG 133 .7830J118. 1330111/20/193311032 0.01 0.01 4. 001 0.004 I I 1 45.2 ( 72 .7)
PAS 134 .24301116. 8960106/30/19791 03411.61 5.81 4.901 0 .008 IIII 45.3 ( 72.9)
PAS 134 .24601116.9010106/29/19791 55320.51 5.71 4.601 0.006 I II 1 45.3 ( 72.9)
PAS 134 .24901116. 9000! 06/30/19791 7 353 .01 5.61 4.501 0.006 1 II ( 45.5( 73.2)
GSP 134.25601116.9120106/28/19921170557.51 8.01 4.601 0.006 1 II 1 45.5 ( 73.2)
GSP 134 .18301116.8020106/28/19921192637.61 1.01 4.001 0.004 1 I 1 45.5 ( 73.2)
GSN 134 .20301116. 8270106/28/19921150530.71 5.01 6.701 0.042 1 VI 1 45.5 ( 73.3)
PAS 134.03101116.6570107/08/19861 92412 .81 6. 01 4.401 0.005 1 II 1 45.7( 73.5)
PAS 133 .96701116.6170I07/08/19861155526.21 6.01 4.001 0.004 1 I 1 45.8 ( 73.7)
PAS 133 .96701116.6170107/08/19861102240.61 6.01 4.401 0.005 1 II 1 45. 8( 73.7)
GSP 134.13001116.7340106/30/19921212254.41 12 .01 4.801 0.007 1 II 1 45.9( 73.8)
MGI 134 .10001118.0000101/27/193012026 0.01 0.01 4.601 0.006 1 III 46.0 ( 74.1)
GSP 134 .22501116.8440107/09/1992I023435.01 0.01 4.101 0.004 1 I 146.1 ( 74.2)
DMG 134 .10001116.7000102/07/18891 520 0.01 0.01 5.301 0.012 1 II11 46.1( 74.3)
1 DMG 133 .50601116.5850105/21/1967I144234.41 19.41 4.701 0.007 1 III 46.2 ( 74.3)
DMG 134.20001117.9000107/13/19351105416.51 0. 01 4.701 0.007 1 II 1 46.3 ( 74.6)
DMG 134 .20001117.9000108/28/18891 215 0.01 0.01 5.501 0.014 1 IV 146.3 ( 74.6)
1 i GSP 134.23201116.8460107/10/19921012940.01 0.01 4.201 0.004 1 I 1 46.4( 74.6)
DMG 133 .89801116.5690111/17/19641145228.21 10.31 4.001 0.003 1 I 1 46.8( 75.3)
DMG 133 .75001118.1670105/16/19331205855.01 0.01 4 .001 0.003 1 I 1 46.9( 75.5)
DMG 133 .53401116.5610109/23/19561112441.91 12 .21 4.301 0.004 1 I 1 47.0( 75.6)
GSP 134.23901116.8370107/09/19921014357.61 0.0� 5.301 0.011 1 II11 47.1 ( 75.8)
DMG 133.46701116.5830101/04/19381 029 0.01 0.01 4 .501 0.005 1 II 1 47.2 ( 75.9)
DMG 133 .46701116.5830103/27/19371 528 0.01 0.01 4.001 0.003 ( I 1 47.2 ( 75.9)
IJ DMG 133 .46701116.5830103/27/19371 742 0.01 0.01 4.501 0.005 1 II 1 47.2 ( 75.9)
DMG 133 .46701116.5830103/26/193712124 0.01 0. 01 4.001 0 .003 ( I 1 47.2 ( 75.9)
PAS 133 . 99801116.6060107/08/19861 92044.51 11.71 5.601 0.015 1 IV 1 47.2 ( 76.0)
j PAS 134.07701118 .0470102/11/19881152555.71 12.51 4.701 0.006 1 II 1 47.4 ( 76.2)
PAS 133 .52001116.5580108/02/19751 014 7 .71 13 .41 4.701 0.006 1 II 1 47.4 ( 76.3)
DMG 134.33301117.0000102/27/19421 1 853 .01 0. 01 4.001 0.003 1 I 1 47.7 ( 76.7)
i PAS 133 . 95301116.5720110/15/1986j 22847. 81 8.71 4.701 0.006 I II 1 47.8 ( 76.9)
DMG 133 .75001118.1830108/04/19331 41748.01 0. 01 4 .001 0.003 1 I 1 47.8 ( 77.0)
DMG 133 .95001118.1330110/25/19331 7 046.01 0. 01 4.301 0.004 I I 1 47.9 ( 77.0)
GSP 134.23701116.8110106/28/19921125730 .81 10. 01 4 .001 0.003 1 I 1 47.9 ( 77.1)
DMG 134.22901116.7950I05/11/19561163050 .51 13 .31 4.701 0 .006 I II 1 48.1 ( 77.4)
PAS 134. 06101118 .0790110/01/19871144220.01 9.51 5 .901 0 .019 1 IV i 48 .3 ( 77.8)
PAS 134.05001118 .0870110/01/19871155953 .51 10.41 4.001 0 .003 1 I 1 48 .4 ( 77.8)
MGI 134.30001116.9000112/01/1915114 5 0.01 0. 01 4 .001 0.003 1 I 1 48 .4 ( 77.9)
GSP 134.20701116 .7570106/28/19921161719.21 3 . 01 4 .201 0.004 1 I 1 48 .5 ( 78.0)
GSP 134 .21901116.7710107/21/19921211029. 01 1.01 4 .101 0. 004 1 I 1 48 .5 ( 78. 1)
GSP 134 .21101116.7600106/28/19921152429.31 6.01 4 .501 0.005 1 II 1 48 .6 ( 78.1)
PAS 134.05201118 .0900110/01/19871151231.81 10. 81 4 .701 0. 006 1 II 1 48 .6 ( 78.2)
PAS 133 .98701116 .5690107/09/19861 01232 .11 6. 01 4.401 0. 005 1 II 148.8 ( 78.6)
DMG I34 .32001116.9250104/18/19681174213 .41 4. 71 4 .001 0.003 1 I 1 48.9 ( 78.6)
DMG 134 .37001117 .6500112/08/1812115 0 0.01 0. 01 7.001 0.048 1 VI 1 48.9 ( 78.6)
DMG 133 .00001117 .3000111/22/180012130 0.01 0. 01 6.501 0.032 1 V 1 48.9 ( 78.7)
DMG 133 .78301118 .2000112/27/19391192849. 01 0.01 4 .701 0.006 1 II 1 49.0 ( 78.9)
DMG 133 .63301118 .2000111/01/1940120 046.01 0.01 4 .00 0.003 1 I 1 49.0 ( 78.9)
PAS 134 .04901118 .1010110/01/19871144541.51 13 .61 4 .701 0.006 1 II 49.0 ( 78.9.
1
-------------------------
EARTHQUAKE SEARCH RESULTS
-------------------------
Page 8
------ ------------- -----------
-------------------------------------------------
j I I I I TIME I I I SITE ISITEI APPROX.
FILET LAT. I LONG. 1 DATE I (UTC) IDEPTHIQUAKEI ACC. I MM I DISTANCE
CODEI NORTH I WEST 1 I H M Secl (km) I MAGI g IINT. I mi [km]
----+-------+--------+----------+--------+-----+-----
----------
DMG 133 . 6300I118 .2000109/13/19291132338.21 0. 01 4 .001 0.003 1 I 1 49.1( 78. 9)
GSP 134 .37401117 .6490I08/20/19981234958 .41 9. 01 4 .401 0.005 I II 1 49.1( 79.0)
GSP I34. 11101116.6460I06/28/19921140928.81 7.01 4 . 101 0.003 I I 1 49.1( 79.0)
ll PAS 134. 06001118 . 1000110/01/198711449 5.91 11.71 4 .701 0 .006 I II 149.4 ( 79.4)
DMG 133 .4170I116.5670112/22/19501 2 536.01 0.01 4 .001 0 .003 I I 1 49.4 ( 79.4)
PAS 134. 0760I118 .0900110/01/198711448 3 .11 11.71 4 .101 0.003 1 I 1 49.4 ( 79.5)
PAS 134. 07301118 .0980110/04/1987I105938.21 8.21 5.301 0 .011 I II11 49.7 ( 80.0)
DMG I34.3120I116.8790101/31/19721 155 4.21 8. 01 4 .001 0.003 I I 1 49.8 ( 80.1)
DMG 133 .40001116.5670102/04/19531 43616.01 0.01 4 .301 0.004 I I 149.9( 80.2)
DMG 133. 86701118 .2000111/13/1933I2128 0.01 0.01 4 .001 0.003 1 I 149.9( 80.4)
DMG 134.2500I116.7700103/16/1956I203344.31 0.81 4 .001 0.003 1 I 1 50.1( 80.7)
PAS 133 .50101116.5130102/25/19801104738 .5I 13.61 5 .501 0.012 1 II11 50.3 ( 80.9)
DMG 133 . 81701118 .2170110/22/19411 65718.51 0.01 4 .901 0.007 1 II 150.3 ( 80.9)
DMG 134.32401116.8850112/01/19621 03548.81 9.61 4 .301 0.004 1 I 150.3 ( 80.9)
!I DMG 134.3370I116.9090111/30/196212351 5.51 7.01 4 .301 0.004 1 I 1 50.3 ( 81.0)
MGI 134 .20001118 .0000101/09/19211 530 0.01 0.01 4 .601 0.005 ( II 150.4( 81.1)
DMG 133 .20001116.7200105/12/19301172548.5I 0.01 4 .201 0.004 1 I 150.5( 81.2)
I MGI I33 .9000I118 .2000I10/08/192711914 0.01 0.01 4 .601 0.005 1 III 50.5( 81.2)
PAS 133 .53801118 .2070105/25/1982I134430.31 13 . 71 4 .101 0.003 1 I 1 50.6( 81.4)
PAS 133 .48401116 .5130108/11/19761152455.51 15.41 4 .301 0.004 1 I 150.6( 81.4)
DMG 134 .32501116.8750112/02/19621 04138.41 6.71 4 .401 0.004 1 I 150.6( 81.5)
MGI 134. 10001118 .1000107/11/18551 415 0.01 0.01 6.301 0.026 1 V 150.8 ( 81.7)
GSP 134.34001116.9000111/27/19921160057.51 1.01 5.301 0.010 I IIII 50.8 ( 81.7)
DMG 134.33301116.8830110/14/19431142844.01 0.01 4 .501 0.005 1 II 1 50.9( 81.8)
DMG 134 .30701116.8350108/28/19501194526.41 11.71 4 .201 0.004 ( I 150.9( 81.9)
DMG 133 .86701118 .2170106/19/19441 0 333 .01 0.01 4 .501 0.005 ( II 1 50.9( 81.9)
DMG 133 .8670I118 .2170I06/19/19441 3 6 7.01 0.01 4 .401 0.004 1 I 1 50.9( 81.9)
I DMG 134 .32501116.8650110/29/19621 24253 .91 B.61 4 .801 0.006 1 II 150.9( 82.0)
DMG 134.06501116 .5740108/26/19591 53250.21 16.71 4 .301 0.004 1 I 1 50.9 ( 82.0)
DMG 133 .50001116 .5000109/30/19161 211 0.01 0.01 5 .001 0.008 1 II 151.0 ( 82.1)
GSP 134 .32001116.8500110/27/1998I154017.11 4.01 4 . 101 0.003 1 I 151.1( 82.3)
GSP 134.27301116.7740I08/24/19921135146.01 1.01 4 .301 0.004 1 I 1 51.2 ( 82.4)
DMG 133 .20001116.7000101/01/19201 235 0.01 0.01 5 .001 0.008 1 II 1 51.3 ( 82.6)
DMG 133 .4830I116.5000102/15/1951I104759.01 0.01 4 .801 0 .006 1 II 151.3 ( 82.6)
( DMG 133 .48301116.5000102/15/19511104957. 0 0.01 4 .801 0.006 ( II 151.3 ( 82.6)
GSP 134 .32201116. 8460109/20/19991070249.21 2 .01 4 .201 0.004 1 I 1 51.4 ( 82.7)
DMG 134 .2640I116.7550103/16/19561203613 .6I 3 .31 4 .001 0 .003 1 I 151.4 ( 82.8)
GSP 134 .3620I116.9230I12/07/19921033331.5I 1.01 4 .001 0.003 ( I 1 51.4 ( 82 .8)
GSP 134.29801116.8040107/05/19921200303. 11 3 .01 4 . 001 0 .003 1 I 151.4 ( 82 .8)
GSP 134 .32301116.8440110/27/1998I010840.71 5.01 4 .901 0.007 I II 151.5 ( 82.9)
DMG I33 . 9390I118 .2050101/11/1950I214135.0I 0.41 4 .101 0 .003 1 I 1 51.5 ( 82.9)
DMG 133 .36701118 . 1500104/16/19421 72833. 01 0.01 4 .001 0 .003 1 I 1 51.6( 83 .0)
GSP I34 .36101116.9130112/04/19921125942 .1I 0.01 4 .201 0 .004 I I 151.7 ( B3 .1)
DMG 133 . 78301118 .2500111/14/19411 84136.31 0. 01 5 .401 0 .011 1 IIII 51.9( 83 .5)
DMG 133 . 75901118 .2530108/31/19381 31814.21 10.01 4 .501 0 .005 1 II 151. 9( 83 .5)
DMG I33 .50001116.4830102/23/19411183614.01 0.01 4 .501 0 .005 I II 151. 9( 83 .6)
GSP I34.36401116. 9040111/27/19921183225. 01 1. 01 4 . 101 0 .003 I I 152 . 1 ( 83 .8)
GSP 134.25001116.7190106/29/1992I164141.9I 1.01 4 .901 0 .007 1 III 52 . 1( 83 .9)
GSP 134. 02001118 . 1800106/12/19891172225.51 16.01 4 .101 0 .003 1 I 152 .2 ( 84.0)
DMG 134.29901116.7840103/18/19561 24217.31 6.31 4 .401 0 .004 1 I 152 .2 ( 84.0)
DMG 134.35001116. 8670110/15/194311650 1. 01 0.01 4.501 0 .005 1 II 152 .3 ( 84.2)
GSP 134.25001117 . 9900106/28/19911170055.51 9.01 4 .301 0 .004 1 I 152 .4 ( 84.3)
PAS 134.32201116.8150108/29/19851 759 8.71 6. 11 4 . 101 0 .003 I 152 .4 ( 84.3)
------- -- ----------------
EARTHQUAKE SEARCH RESULTS
-------------------------
Page 9
------------------ ----- - - ----- - - - - - -- ---------------------------------- ---- -- -- -
I I TIME i I I SITE ISITEI APPROX.
FILEI LAT. I LONG. I DATE I (UTC) IDEPTHIQUAKEI ACC. I MM I DISTANCE
1 CODEI NORTH I WEST I I H M Secl (km) I MAG I g IINT. I mi [km]+--_----+--------+----------+_-------+--_--+-----+_------+---_+_-----------
GSP 134. 03001118 . 1800106/12/19891165718 .41 16.OI 4 .401 0.004 I I 152 .5 ( 84.5)
GSP 134.37701116 . 9180112/04/19921052511.21 2 .OI 4 .80I 0.006 I II 152.5 ( 84.5)
GSP I34.3690I116 . 8970I12/04/1992I020857.5I 3 .OI 5 .301 0.010 I IIII 52.6 ( 84.6)
MGI I33 -1000I116. 8000I06/22/1918I 557 0. 01 0.01 4 .001 0.003 I I 152 .6 ( 84.6)
DMG I34.3170I116. 8000I08/12/1950I 21717 . OI 0.01 4 .301 0.004 I I 152 .6 ( 84.7)
MGI I34.0000I118 .2000I06/26/1917I 424 0. 01 0.01 4 .001 0.003 I I 152 .7 ( 84.8)
MGI I34.0000I118.2000I06/26/1917I2115 0 . 01 0.01 4 .60I 0.005 I II 152 .7 ( 84.8)
{ MGI I34 .0000I118.2000IO2/13/1917I13 5 0. 01 0 .01 4 .60I 0.005 I II 152 .7 ( 84.8)
MGI I34.00OOI118 .2000I06/26/1917I2130 0. 01 0.01 4 .601 0.005 I II 152.7 ( 84.8)
1 MGI I34 .0000I118 .2000I06/26/1917I2120 0. 01 0.01 4 .60I 0.005 I II 152 .7 ( 84.8)
MGI I33 .000OI117.0000I12/29/1914I10 0 0 . 01 0.01 4 .00I 0.003 I I 152 .8 ( 85.0)
DMG I33 .0000I117 .0000I03/03/1906I2025 0 . 01 0.01 4 .50I 0.005 I I 152.8 ( 85.0)
MGI I33 .0000I117.0000I09/21/1856I 730 0 . 01 0.01 5.00I 0.007 I II 152 . 8 ( 85.0)
f GSP I34 .2750I116.7300I07/01/1992I204617.8I 1.OI 4 .20I 0.003 I I 152 .9( 85.2)
GSP I34 .3700I116.8800I11/29/1992I142120.5I 3 .OI 4 .00I 0 .003 I I 153 .1( 85.5)
GSP I34 .2810I116.7310I07/01/1992I205356.8I 1.OI 4 .00I 0.003 I I 153 .2 ( 85.6)
DMG I34 .0170I116 .5000I07/29/1947I163615 . OI 0 .01 4 .20I 0.003 I I 153 .3 ( 85. B)
DMG 134 .01701116.5000107/26/1947123 425.OI 0.01 4 .50I 0.004 I I 153 .3 ( 85.8)
DMG I34 .0170I116.5000I07/24/1947I225341.0I 0.01 4 .30I 0.004 I I 153 .3 ( 85.8)
DMG 134.01701116.5000107/25/19471161453 .01 0 .01 4 .50I 0.004 I I 153 .3 ( 85.8)
DMG 134 .01701116.5000107/25/19471 04631.OI 0.01 5.00I 0.007 I II 153 .3 ( 85.8)
DMG 134.01701116.5000107/24/19471225426.01 0.01 4 .90I 0.007 I II 153 .3 ( 85.8)
DMG 134.01701116.5000107/26/19471 12415.OI 0.01 4 .20I 0.003 I I 153 .3 ( 85.8)
DMG 134.01701116.5000107/26/19471 24941.OI 0.01 5.10I 0.008 I II 153 .3 ( 85.8)
DMG I34.0170I116.5000I07/26/1947I231351.0I 0.01 4 .10I 0.003 I I 153 .3 ( 85.8)
DMG I34 .0170I116.5000I07/24/1947I221046.OI 0.01 5 .50I 0.011 I IIII 53 .3 ( 85.8)
DMG I34 .0170I116.5000I07/25/1947I 75730.OI 0.01 4 .20I 0.003 I I 153 .3 ( 85.8)
DMG I34 .0170I116.5000I07/30/1947I 52217.OI 0 .01 4 .20I 0.003 I I 153 .3 ( 85.8)
DMG 134 .01701116.5000108/08/19471 64745.OI 0 .01 4 .00I 0.003 I I 153 .3 ( 85.8)
DMG I34. 0170I116 .5000I07/25/19471 61949.OI 0.01 5 .20I 0.009 I IIII 53 .3 ( 85.8)
DMG I34 .0170I116.5000I08/01/1947I17 137.OI 0.01 4 .10I 0.003 I I 1 53 .3 ( 85.8)
DMG I34.0170I116.5000I07/25/1947I 15647 .OI 0.01 4 .60I 0.005 I II 153 .3 ( 85. 8)
DMG 134 .01701116.5000107/25/19471 51752 .OI 0.01 4 .301 0.004 I I 153 .3 ( 85.8)
DMG 133 .42001116.4900103/29/1937117 316.81 10.0I 4 .00I 0.003 I I 153 .4 ( 85.9)
DMG 133 .40001116.5000110/11/19181 4 0 0.01 0.01 4 .00I 0.003 I I 153 .4 ( 85.9)
I GSP 134.26201118 .0020106/26/19911144354 .51 11.OI 5 .40I 0.010 I IIII 53 .4 ( 86.0)
DMG 133 . 85001118 .2670103/11/193311425 0. 01 0.01 5 .00I 0.007 I II 153 .5 ( 86.0)
DMG I33 . 8500I118 .2670I03/11/1933I 629 0. 01 0.01 4 .40I 0 .004 I I 153 .5 ( 86.0)
DMG 134 .30601116.7590103/16/19561202933 .61 1.31. 4 .801 0.006 I II 153 .5 ( 86.1)
GSP 133 .51001116.4500102/18/19901155259. 91 9.OI 4 .10I 0.003 I I 153 .6( 86.2)
DMG 133 .50001118 .2500106/18/1920110 8 0.01 0.01 4 .50I 0 .004 I I 153 .6( 86.3)
DMG I33 . 8800I116.4370I04/17/1959I1619 0.2I 22 .21 4 .20I 0 .003 I I 153 . 8 ( 86.6)
1 DMG 134.40001116.9170101/25/19421215133 .01 0 .01 4 .001 0 .003 I I 153 .9( 86. 8)
DMG 134 .40001116.9170102/01/19421151828.01 0.01 4 .50I 0 .004 I I 153 .9( 86. 8)
DMG 134.40001116 .9170102/01/19421151555.01 0.01 4 .001 0 .003 I I 153 .9( 86.8)
DMG 134.40001116.9170102/01/1942116 334 .OI 0 .01 4 .50I 0.004 I I 153 .9( 86. 8)
GSP 133.07001116 .8000112/04/19911071057.51 15 .OI 4 .20I 0 .003 I I 154 .3 ( 87.3)
PAS I34. 1490I118 .1350I12/03/1988I113826.4I 13 .31 4 .90I 0.006 I II 154 .3 ( 87.4)
DMG 134.40001117 .8000102/24/19461 6 752 .OI 0.01 4 .10I 0.003 I I 154 .3 ( 87.4)
DMG I34 .4330I116.9830I04/18/1945I 458 2 .OI 0. 01 4 .301 0.004 I I 154 .4 ( 87.5)
GSP I34 .2740I116.6920I07/01/1992I170715. 1I 4 . OI 4 ,20I 0.003 I I 154 .4 ( 87.5)
DMG I34 .00OOI116 .4670I12/05/1948I 05057.OI 0 .01 4 .40I 0 .004 I I 154 .6 ( 87.9)
DMG 134 .00001116.4670112/06/19481 246 8 .OI 0.01 4 .30I 0.004 1 I 154.6 ( 87. 9)
I
-------------------------
EARTHQUAKE SEARCH RESULTS
------------------
Page 10
------------- ----------------------------------------------------
__ ____
I I I I TIME I I I SITE ISITEI APPROX
FILEI LAT. I LONG. ( DATE I (UTC) IDEPTHIQUAKEI ACC. I MM I DISTANCE
CODEI NORTH I WEST 1 1 H M Secl (km) I MAG. 1 g IINT. 1 mi [km]
------------------------------------------------------------- ------------------
USG 133 . 0170I117.8170107/16/198611247 3 .71 10.01 4.111 0 .003 I I 1 54 .7 ( 88.0)
USG 133 .01701117.8170107/14/19861 11112 .61 10.01 4.121 0 .003 I 1 54.7 ( 88.0)
I DMG I33 .96701116.4500112/11/1948I161220.01 0.01 4.501 0 .004 I I 1 54.7 ( 88. 1)
PAS 133 .48301116.4380107/02/19881 02658.21 12 .61 4.001 0.003 I I 1 54.7 ( 88.1)
MGI 133 . 80001118 .3000112/31/192811045 0.01 0.01 4.001 0.003 I 1 54.8 ( 88.2)
DMG 133 .80001118.3000111/03/1931116 5 0.01 0.01 4.001 0 .003 I I 154.8 ( 88.2)
DMG 133 .50101116.4290102/23/19711 0 739.21 8 .01 4.201 0.003 I I 1 54.9( 88.4)
L DMG I33 .46701116.4330105/12/193911925 2 .21 0.01 4.501 0.004 I 155.4 ( 69.1)
T-A 134. 00001118.2500105/04/18571 6 0 0.01 0.01 4.301 0.003 I I 1 55.4 ( 89.1)
T-A 134 .00001118.2500103/21/188011425 0.01 0.01 4.301 0.003 1 I 1 55.4 ( 89.1)
T-A 134.00001118.2500101/17/18571 1 0 0.01 0.01 4.301 0.003 1 I 1 55.4 ( 89.1)
T-A 134.00001118 .2500101/10/18561 0 0 O.OI 0.01 5.001 0 .007 I II 1 55.4 ( 89.1)
T-A 134.00001118.2500105/02/18561 810 O.OI 0.01 4.301 0.003 1 I 1 55.4 ( 89.1)
T-A 134 .00001118 .2500103/26/18601 0 0 O.OI 0.01 5.001 0.007 I II 1 55.4 ( 89.1)
T-A 134.00001118.2500109/23/18271 0 0 0.01 0.01 5.001 0.007 I II 1 55.4 ( 89.1)
PAS 133 .45801116.4340102/12/19791 44842.31 3 .91 4.201 0.003 I I 155.5 ( 89.3)
DMG 133 .96701116.4330112/05/19481 04235.01 0.01 4.601 0.005 I II 1 55.6( 89.5)
MGI 133.20001116.6000110/12/192011748 0.01 0.01 5.301 0.009 1 II11 55.7 ( 89.6)
MGI 134 .10001118 .2000104/21/192111538 0.01 0.01 4.001 0.003 i - 155.7 ( 89.6)
MGI 134 .10001118 .2000101/27/18601 830 0.01 0.01 4.301 0.003 I I 1 55.7 ( 89.6)
MGI 134.10001118 .2000105/02/191611432 0.01 0.01 4.001 0.003 I - 1 55.7 ( 89.6)
DMG 134.3360I116.7420103/16/19561233456.41 1.71 4.401 0 .004 1 I i 55.7 ( 89.6)
DMG 133 .96301116.4250101/13/19501 5 719.41 5.91 4.101 0.003 I 1 56.0 ( 90.1)
GSP 132 .98501117 .8180106/21/1995I211736.21 6.01 4.301 0.003 I I 1 56.6 ( 91.2)
DMG 133 .88301118.3170103/11/193311457 0.01 0.01 4.901 0.006 I II 156.7 ( 91.3)
DMG I33 .93301116.4000112/10/19481204257.01 0.01 4.401 0.004 I I 1 56.8 ( 91.3)
T-A 134 .17001118.1700103/07/188811554 0.01 0 .01 4 .301 0.003 1 I 156. 8 ( 91.3)
DMG 134.41701116.8500102/11/19321231120.01 0.01 4.001 0.003 1 - 156.8 ( 91.4)
DMG 133 .42601116.4210103/25/1937120 4 8.31 10-01 4.001 0 .003
DMG 134 .08301116.4670101/26/193411844 0.01 0.01 4.001 0.003 1 1 56.9( 91.6)
1 1 I - 1 56.9( 91.6)
DMG 134. 08301116.4670103/01/19421104631.0I 0.01 4.001 0.003 - 1 56.9( 91.6)
PAS 132 .94701117.7360101/15/19891153955.21 6.01 4.201 0 .003 I I 1 57.0 ( 91.7)
j GSP 133 .94501116.3990107/05/19921054938.21 3 .01 4 .001 0 .002 - 1 57 .0 ( 91.8)
PAS 132 .97001117.8030107/14/1986I 03246.21 10.01 4 .001 0.002 1 - 157.2 ( 92.0)
DMG 133 .36801116.4440103/25/19371232026.71 10.01 4 .001 0.002 1 - 157.2 ( 92.1)
PAS 132 . 99001117 .8490107/13/1986114 133 .01 12 .01 4 .601 0.004 1 I 157.2 ( 92.1)
PAS 132 . 98601117.8440110/01/19861201218.61 6.01 4 .001 0 .002 1 - 157.3 ( 92.2)
PAS 134 . 02201116.4260 08/14/19751 8 849.81 10.91 4.001 0.002 I - 57.3 ( 92.3)
GSP 132 .97001117.8100104/04/19901085439.31 6. 01 4 .001 0 .002 I - 1 57.3 ( 92.3)
DMG 133 .41701116.4170101/02/19431141118.01 0. 01 4.501 0 .004 I I 157.4 ( 92.3)
DMG 133 . 9830I118 .3000IO2/11/1940I192410.01 0.01 4 . 001 0 .002 1 - 157.6( 92.8)
DMG 133 . 9330I116.3830112/04/19481234317.01 0.01 6.501 0 .026 I V ( 57.7 ( 92.8)
DMG 134.0500I116..4330102/08/1938I 739 0.01 0.01 4 .001 0 .002 1 - 57 .7 ( 92.9)
PAS 133 .9850 � 116.4020IO2/15/19851232626.61 2 .3I 4 .001 0 .002 I - 1 57 .7 ( 92. 9)
PAS 133 .03301117.9440102/22/1983I 21830 .41 10.01 4 .301 0 .003 I I 1 57 .7 ( 92.9)
DMG I33 . 5430 � 118.3400I09/14/1963I 35116.21 2 .21 4 .201 0 .003 I I 158 .0 ( 93.3)
MGI 134 .00001118.3000106/30/19201 350 0.01 0 .01 4 . 001 0 .002 1 - 158 .0 ( 93.4)
MGI 134. 00001118.3000106/22/192012035 0.01 0.01 4 .001 0.002 I - 158.0 ( 93.4)
MGI 134 .00001118.3000109/03/19051 540 0.01 0.01 5 .301 0.008 I II11 58.0 ( 93.4)
MGI 134. 0800l118.2600 + 07/16/1920I18 8 0.01 0. 01 5 .001 0.006 1 II 1 58 .1( 93.5)
GSP 133 . 9460I116.3790I04/24/19921123605.71 10.01 4 .101 0.003 1 I 1 58 .2 ( 93.6)
DMG 134.06701116.4320112/04/19571 25144.01 3 .71 4 .301 0.003 I I 158.3 ( 93.8)
DMG 134.43601116.8340107/14/19731 8 020.11 8.01 4 .801 0.005 i II 58 .4 ( 94.0)
-------------------------
EARTHQUAKE SEARCH RESULTS
-------------------------
Page 11
------------------------------------------------
I I 1 I TIME I I I SITE ISITEI APPROX.
FILET LAT. I LONG. I DATE I (UTC) IDEPTHIQUAKEI ACC. I MM I DISTANCE
CODEI NORTH I WEST I I H M Secl (km) I MAG I g IINT. I mi [km]
----+-------+--------
DMG I33 .93301116.3670I12/05/19481 0 721. 01 0. 01 4.901 0.006 ( II 158 .6 ( 94.3)
DMG 133 .15001116.5830112/02/19351 319 0.01 0. 01 4 .001 0.002 1 - 158.6( 94.4)
PAS 132.94501117 .8060109/07/1984111 313 .41 6. 01 4.301 0.003 1 I 158.8 ( 94.6)
DMG 133 .33301116.4330102/12/19541 94428. 01 0. 01 4 .501 0.004 1 I 158.8 ( 94.7)
DMG 133 .1000I116.6330102/08/1952I174028.0I 0.01 4 .001 0.002
1 - 158.9( 94.8)
PAS 133.4600I116.3700109/07/19841175730.3I 15.21 4 .101 0.003 1 - 1 59.0 ( 94.9)
PAS 132 .97101117.8700107/13/198611347 8.21 6.01 5.301 0.008 1 I111 59.0 ( 94.9)
DMG 134.00001116.3830105/05/19441134715. 01 0. 01 4 .001 0.002 1 - 1 59.1( 95.1)
GSP 134.15201116.4680I06/28/19921224822.91 11.01 4 .101 0.003 1 - 1 59.2 ( 95.3)
1 GSP 134.08901116.4260I06/28/19921143906.91 0.01 4 .301 0.003 I I 159.2 ( 95.3)
GSP 134.09501116.4270106/28/19921211316.51 3 . 01 4 .601 0.004 I I 1 59.4 ( 95.5)
PAS 132.94501117.8310107/29/19861 81741. 81 10. 01 4 .101 0.003 I - 1 59.4 ( 95.6)
DMG 133 .93301116.3500112/05/19481 04032 .01 0. 01 4 .401 0.003 1 I 1 59.5 ( 95.8)
I DMG 132.85001117.4830102/23/19431 92112 . 01 0. 01 4 .001 0.002 1 - 159.6( 96.0)
GSP 134.09601116.4170107/18/19921000611.21 2 .01 4 .001 0.002 1 - 159. 9( 96.4)
GSP 134.09201116.4140112/21/19921114402.9I 3 .01 4.001 0.002 1 - 159.9( 96.4)
GSP 134.03001116.3790106/28/19921 160115.21 1 1 1.0 4 .10 0.003
GSP 133 .94001116.3410105/04/1992011602.6 6.0 4 .00 0.002 1 160.0( 96.6)
DMG, 133 .95801116.3460101/08/19521 63427.41 11.41 4 .401 0.003 I I 160.2 ( -96.9)
MGI I33 .10001116.6000105/28/191711017 0.01 0.01 4 .001 0.002 1 - 1 60.3 ( 97.0)
MGI 133 .10001116.6000105/11/191511145 0.01 0.01 4 .001 0.002 1 - 1 60.3 ( 97.0)
MGI 133 .10001116. 6000108/10/1921119 6 0.01 0.01 4 .001 0.002 1 - 160.3 ( 97.0)
MGI I33 .10001116.6000I03/04/191511250 0.01 0.01 4 .001 0.002 1 - 1 60.3 ( 97.0)
MGI 133 .10001116.6000108/19/19171 710 0.01 0.01 4 .001 0.002 I - 1 60.3 ( 97.0)
MGI 133 .10001116.6000102/16/191511330 0.01 0.01 4 .001 0.002 I 160.3 ( 97.0)
MGI 133 .10001116.6000108/10/19211 2151 0.01 1 1 0.0 4 .00 0.002
MGI 133 .10001116.6000102/05/19221915 0.01 0.0 4 .00 0.002 I 160.3 ( 97.0)
MGI 133 .10001116.6000102/09/19201 220 0.01 1 I 160 .3 ( 97.0)
1 0.0 1 4 . 00 I 0 .002 � - 160 .3 ( 97.0)
DMG 134.01701116.3670106/06/19401235637.21 0.01 4 .401 0 .003 1 I 1 60.4 ( 97.1)
GSP 134 . 00401116.3610106/30/1992I1438ll.61 0.01 4 .801 0.005 1 lI 160.4 ( 97.2)
GSP 134.08801116.4020108/15/19921082414 .71 0. 01 4 .801 0.005 1 II 160.4 ( 97.2)
PAS 132.93301117.8410107/29/19861 81741.61 10. 01 4 .301 0.003 I 160.4 ( 97.3)
DMG 133 .63301118 .4000110/17/19341 938 0.01 0.01 4 . 001 0.002 1 - 1 60.5 ( 97.3)
GSP 134. 11201116.4150I07/28/19921182703 .9I 0. 01 4 .601 0.004 I I 1 60.5 ( 97.4)
GSP 133 .95101116.3380105/18/19921154418.01 7.01 4 . 901 0.005 1 II 1 60.5 ( 97.4)
GSP 134. 13901116.4310106/28/19921123640.61 10.01 5 . 10I 0.006 I II 1 60.6 ( 97.5)
GSP I34. 11101116.4100106/28/19921135045 .7I 0. 01 4. 901 0.005 1 II 1 60.7 ( 97.7)
DMG 134.45001116.7830105/22/19421151829.OI 0. 01 4 .001 0 .002 I - 160.7 ( 97.7)
MGI 134. 10001118 .3000107/26/192011215 0 .01 0.01 4 . 001 0 .002 1 - 160. 8 ( 97.8)
MGI 134. 10001118.3000107/16/192012130 0 .01 0 .01 4 .601 0 .004 1 I 160. 8 ( 97.8)
MGI 134. 10001118.3000I07/16/1920I2127 0.01 0 .01 4 . 601 0 .004 1 I 160. 8 ( 97. 8)
MGI 134. 1000I118.3000107/16/1920I2022 0.01 0. 01 4 . 601 0 .004 I I 160. 8 ( 97.8)
GSP 133 . 94701116.3300I09/09/19921125045. 11 5 .01 4 .301 0 .003 1 I 160.9( 98.0)
GSP I34.06901116.3820107/07/1992I082103 . 11 3 .01 4 . 001 0.002 I - 160 . 9( 98.0)
GSP 134 .10801116.4040106/29/19921141338 .81 9.01 5 .401 0 . 009 I IIII 60. 9( 98.1)
GSP 134 .10601116.4020106/29/19921140837. 71 11. 01 4.901 0.005 I III 61. 0 ( 98. 1)
DMG 133 .66301118 .4130101/08/19671 738 5 .31 17.71 4 . 001 0 .002 1 - 161. 1 ( 98.3)
GSG I33 . 94301116.3250104/23/19921052316.21 5 .01 4.001 0 .002 1 - 161. 1 ( 98.3)
DMG 133 .98501116.3400102/01/19571 75215.41 11.01 4 . 601 0.004 1 I 161. l ( 98.3)
GSP 134. 06101116.3740108/11/1992I061117.31 0.01 4 .301 0.003 I I 1 61. 1( 98.4)
GSP 134.03401116.3600105/14/1999I105235 .21 1.01 4 .201 0. 003 1 I 161.1 ( 98.4)
GSP 134 . 05701116.3710I06/28/19921160953 .91 3 .01 4 . 101 0 .002 1 - 1 61.2 ( 98.4)
GSP 133 .39901116.3540107/26/19971031456.01 11. 01 4. 801 0 .005 1 III 61.2 ( 98.5)
i
i
EARTHQUAKE RECURRENCE CURVE
Nichols Road Project - Soil
100
1�
�i 10
Cu
I 1
z
I �
c
°
W
L
a�
E
z
I ° .01
E
U
I .001
Jill IIII IIII I ' ll
I =:,�z��a, ::�•: ..er s�:aluh�kt� •�ze a �.,���+� *�r�i:_=�rrs.�:z,-�t::r�:.�;a�..; r�r..rm.
3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0
Magnitude (M)
l�
�I
I I
Number of Earthquakes (N) Above Magnitude (M)
II Nichols Road Project - Soil
�l
f�
II
100 ---
z
a�
>
w
O -
a�
( E
f I
m 10
E
D —
U
i
I
3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8y.0 8.5 9.0
Magnitude (M)
l
-------------------------
EARTHQUAKE SEARCH RESULTS
-------------------------
Page 12
------------- - - ------------- _----------------------------
__
I I I TIME I I j SITE ISITEI APPROX.
FILEI LAT. I LONG. I DATE I (UTC) IDEPTHIQUAKEI ACC.
C I MM DISTANCE NORTH I WEST I H M SecI (km) I MAG. I g+--------r---------+------- IINT. I mi [km]
--------------------------------------------------
DMG
I33.7830I118 .4170I10/14/1940I205111.OI 0.01 4 .001 0.002 61.4 ( 98.8)DMG I33.7830I118.4170I10/12/1940I 024 0.01 0.01 4 .001 0.002
DMG I33.78301118-4170I11/02/1940I 25826.01 0.01 4.001 0.002 f 61.4 ( 98. 8)
I� DMG I33.7830I118-4170111/01/1940I 725 3 .01 0.01 4 .001 0.002 - 161.4 ( 98. 8)
GSP 134. 08201116.3780107/06/19921194137.91 3 .01 4 .401 0.003 I I 161.5 ( 99.0)
DMG I33.7830I116.2830I03/04/1937I16 4 0 .01 0.01 4 .001 0.002 I - 161.6 ( 99.1)
GSP 134.06201116.3660105/14/19991075403 .21 1.01 4 .901 0.005 I III 61.6 ( 99.1)
DMG I33.16701116.5000I06/23/1932I 22552 .71 0.01 4.001 0.002 I 61.6 ( 99,
DMG, I33.1670I116.5000I06/23/19321 23037.11 0.01 4 .001 0.002 I - ( 61.6( 99.1)
I GSP 133.94301116.3150105/06/19921023843 .31 7. 01 4 .501 0.004 I I 161.6 ( 99,2)
GSP 134.09701116.3820107/01/19921070149.21 0. 01 4 .301 0.003 I I 161.7 ( 99.3)
GSP 133.95701116.3170104/23/19921022529.91 11.01 4 .601 0.004 I 1161.8 ( 99.4)
GSP I33 .96101116.3180I04/23/1992I045023 .OI 12 .01 6.101 0.002 0.016 I IV 61.8 ( 99.5)
1
I( GSP I34.1020I116.3830f08/04/1992I190612 .3I O. OI 4 .00I
GSP . . I11/27/1996I014243 .8I 6.01 4.101 0.002 I 161 8 ( 99 5)I339530I1163140
GSP I34.0640I116.3610I09/15/1992I084711.3I 9. 01 5.201 0.007 I II 161.9 ( 99.6)
GSP 134.12701116.3970106/30/19921000608 .51 2.01 4.301 0.003 I 1161.9 ( 99.6)
I GSP I33 .9510I116.3110I04/26/1992I062608 .0I 0. 01 4.201 0.003 I I 162 .0 ( 99,8)
PDP I33.9370I116.3060I07/25/1992I043160 .0I 5.01 4 .901 0.005 I II 162 .0 ( 99,8)
GSP I34.0580I116.3550I06/28/1992I221312 .0I .7. 01 4 .001 0.002
1 DMG I34.4050I116.6670I07/02/1955I162938 .5I 10.01 4.201 0.003 I I 162 .0( 99.9)
-END OF SEARCH- 604 EARTHQUAKES FOUND WITHIN THE SPECIFIED SEARCH AREA.
TIME PERIOD OF SEARCH: 1800 TO 2000
LENGTH OF SEARCH TIME: 201 years
THE EARTHQUAKE CLOSEST TO THE SITE IS ABOUT 2 . 8 MILES (4.6 km) AWAY.
LARGEST EARTHQUAKE MAGNITUDE FOUND IN THE SEARCH RADIUS: 7.0
i
LARGEST EARTHQUAKE SITE ACCELERATION FROM THIS SEARCH: 0.296 g
COEFFICIENTS FOR GUTENBERG & RICHTER RECURRENCE RELATION:
a-value= 3 .714
b-value= 0. 819
' beta-value= 1 . 886
------------------------------------
TABLE OF MAGNITUDES AND EXCEEDANCES:
1 Earthquake I Number of Times I Cumulative
Magnitude I Exceeded I No. / Year
-----------+-------------
4.0 I 604 I 3 . 00498
4.5 I 219
5.0 I I 1. 08955
76
5.5 I 0.37811
25 I 0. 12438
6.0 I 16
� 7 I 0.07960
6.5
0. 03483
7.0 2 I 0.00995
i
CALIFORNIA FAULT MAP
Nichols Road Project- Soil
1100
1000
900 -
I
800
700
600
500
400
300
200 -
I -
100 - •dam 5 E
- o
0 e
-100
-400 -300 -200 -100 0 100 200 300 400 500 600
CALIFORNIA FAULT MAP
Nichols Road Project - Soil
200
150
100 \
SITE
50 -
0
-50
-100
100 150 200 250 300 350 400
0
z -
00
o _
wa -
0
UW � �,
UW
Q or.
rn �
LO aD
O d Q
� W
W cx7 O
a �
Q
W _ M
L� O
N
O
O
O
O O
O O
O O
r-
(sJA) pOuad uanjaa
�l
PROBABILITY OF EXCEEDANCE
SADIGH ET AL. (1997) DEEP SOIL 1
Fe
100 25 rs 50 rs 75 yrs
100 rs
1
l�
90
I 80
70 -
1
0 60
m
.n
° 50
o_
(D
C
Cu
U
L) 40
x
W
30
1
20
10
0
0.0 0.1 0.2
0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Acceleration (g)
f�
I'
I
PROBABILITY OF EXCEEDANCE
i( SADIGH ET AL. (1997) DEEP SOIL 1
I
I
25 rs 50r [�
75 rs 100 rs
C45
it 40 -
35
i
30
4 �
c�
a
° 25
a
m
U
C
f0
'O
0 20
x
i
W
j 15
i \
_ 1
r
10
5
i
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Acceleration (g)
i
I
I --- o
,r
0
II
( z
1 O
�It 00
-
1 N O
Q o
J � U3
Q O U
1 O Q
I ~
M
L, O
nJ
N
O
O
O
O 00 O O
O
O p O
O �
(say() pOiaad uanl@H
PROBABILITY OF EXCEEDANCE
SADIGH ET AL. (1997) DEEP SOIL 2
I F-m-1
100 25 yrs 50 rs 75 yrs 100 rs
90 -
80
70 -
60
n
co
.o -
° 50
a)
U -
C
(0
a)
u 40
x
w
30 -
20
10
i
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Acceleration (g)
PROBABILITY OF EXCEEDANCE
SADIGH ET AL. (1997) DEEP SOIL 2
0
25 rs 50 yrs 75 rs 100 yrs
45
35
30
Y
° 25 - _
w
a�
U -
C
(0 -
U
a) 20
x -
w
15
10
5
0 - fill III fill
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Acceleration (g)
***********************
* *
* E Q F A U L T
* *
* Version 3 .00
* *
***********************
DETERMINISTIC ESTIMATION OF
PEAK ACCELERATION FROM DIGITIZED FAULTS
JOB NUMBER: 0860-001-00
DATE: 08-07-2005
JOB NAME: Nichols Road Project - Rock
CALCULATION NAME: Nichols Road Project - Rock
FAULT-DATA-FILE NAME: C:\Program Files\EQFAULTI\Comgeg03.dat
SITE COORDINATES:
SITE LATITUDE: 33.7097
SITE LONGITUDE: 117 .3566
SEARCH RADIUS: 62.14 mi
ATTENUATION RELATION: 21) Sadigh et al. (1997) Horiz. - Rock
UNCERTAINTY (M=Median, S=Sigma) : M Number of Sigmas: 0.0
DISTANCE MEASURE: clodis
SCOND: 1
Basement Depth: 5.00 km Campbell SSR: Campbell SHR:
COMPUTE PEAK HORIZONTAL ACCELERATION
FAULT-DATA FILE USED: C:\Program Files\EQFAULTI\Comgeg03 .dat
MINIMUM DEPTH VALUE (km) : 0. 0
CALIFORNIA FAULT MAP
1100 Nichols Road Project - Rock
1000
900
800
700 -
600
500
400
300
200 -
100 F
0
0
-100
I
-400 -300 -200 -100 0 100 200 300 400 500 600
i
I
CALIFORNIA FAULT MAP
Nichols Road Project - Rock
' 200 --
(� 150 -
( 100 -
I
SITE
•
50
I
0 -
-50
l -
-100
i
100 150 200
250 300 350 400
---------------
EQFAULT SUMMARY
(� ---------------
-----------------------------
I DETERMINISTIC SITE PARAMETERS
-----------------------------
Page 1
ESTIMATED MAX. EARTHQUAKE EVENT
APPROXIMATE J -------------------------------
ABBREVIATED DISTANCE ' MAXIMUM I PEAK JEST. SITE
FAULT NAME mi (km) JEARTHQUAKEI SITE JINTENSITY
MAG. (Mw) ACCEL. g JMOD.MERC.
ELSINORE-GLEN IVY 1 1.7 ( 2 .7) 1 6.8 0.603 X
ELSINORE-TEMECULA 1 3.2 ( 5. 1) 1 6.8 0.496 X
f Il CHINO-CENTRAL (ELSINORE) 1 14.6 ( 23 .5) 6.7 J � 0. 187 VIII
WHITTIER 1 19. 0 ( 30.5) 6.8 J 0.122 VII
SAN JACINTO-SAN JACINTO VALLEY 19.8 ( 31. 8) I 6.9 0. 124 J VII
SAN JACINTO-SAN BERNARDINO J 22.1 ( 35.5) 6.7 0.094 J VII
SAN JACINTO-ANZA 25.4 ( 40.8) 1 7.2 0.111 J VII
NEWPORT-INGLEWOOD (OFFSHORE) 28.3 ( 45.6) 7.1 0.089 J VII
ELSINORE-JULIAN I 30.3 ( 48.8) 7.1 0.081 J VII
4 SAN ANDREAS - SOUTHERN 31.6 ( 50. 8) 7.4 0.095 J VII
SAN ANDREAS - SAN BERNARDINO J 31.6 ( 50.8) I 7.3 0.089 VII
CUCAMONGA 33 .1 ( 53 .2) 1 7.0 0.080 J VII
ELYSIAN PARK THRUST 33.4 ( 53 . 8) 1 6.7 I 0.063 VI
t NEWPORT-INGLEWOOD (L.A.BASIN) J 33.4 ( 53 .8) 1 7.1 0.071 VI
i SAN JOSE 33.7 ( 54.2) J 6.5 0. 053 I VI
SIERRA MADRE 36.0 ( 58.0) J 7.0 0.071 J VI
COMPTON THRUST 36.5 ( 58.8) 1 6.8 0.059 VI
NORTH FRONTAL ZONE (WEST) 38.8 ( 62.4) I 7.0 1 0.063 VI
CLEGHORN 39.3 ( 63 .2) 1 6.5 J 0.034 V
ROSE CANYON 40.3 ( 64.8) I 7.2 J 0.058 I VI
SAN ANDREAS - MOJAVE 42.7 ( 68.7) 1 7.1 I 0. 049 VI
I SAN ANDREAS - 1857 RUPTURE 42 .7 ( 68.7) 1 7 .8 0. 084 VII
t PINTO MOUNTAIN J
VI
PALOS VERDES I 43 .7 ( 70.4) 1 7 .11 I 0 .048 J
VI
CORONADO BANK I 44.8 ( 72. 1) 1 7.6 I 0.068 I VI
j CLAMSHELL-SAWPIT 46.2 ( 74.3) ] 6.5 0.032 I V
NORTH FRONTAL ZONE (EAST) J 48. 0 ( 77.3) 1 6.7 1 0. 035 V
RAYMOND 48.8 ( 78.6) 1 6.5 0 . 029 J V
SAN JACINTO-COYOTE CREEK 50.6 ( 81.5) 6.8 I 0. 029 J V
SAN ANDREAS - COACHELLA J 53 .4 ( 86.0) I 7 .1 0. 035 J V
HELENDALE - S. LOCKHARDT 53 .6 ( 86.2) J 7 .1 0 .035 J V
VERDUGO 54.3 ( 87.4) 1 6.7 0 . 029 J V
SAN DIEGO TROUGH 57.3 ( 92 .2) 1 7 .7 0 .051 J VI
EARTHQUAKE VALLEY 57.6 ( 92. 7) 1 6.5 1 0. 018 IV
HOLLYWOOD 57.7 ( 92. 8) 1 6.4 0 . 020 IV
j BURNT MOUNTAIN J 58.7 ( 94.4) 1 6.4 0 .016 IV
J
LENWOOD - OLD WOMAN SPRINGS 60. 8 ( 97 .9) J 7 .3 0. 033 J V
EUREKA PEAK J 61. 3 ( 98.7) J 6.4 J 0 . 015 I IV
*******************************************************************************
-END OF SEARCH- 38 FAULTS FOUND WITHIN THE SPECIFIED SEARCH RADIUS.
THE ELSINORE-GLEN IVY FAULT IS CLOSEST TO THE SITE.
IT IS ABOUT 1.7 MILES (2 . 7 km) AWAY.
LARGEST MAXIMUM-EARTHQUAKE SITE ACCELERATION: 0 .6032 g
i
*************************
* *
' * E Q S E A R C H
* *
J * Version 3.00
II * *
*************************
I ESTIMATION OF
` PEAK ACCELERATION FROM
CALIFORNIA EARTHQUAKE CATALOGS
JOB NUMBER: 0860-002-00
DATE: 08-07-2005
IJOB NAME: Nichols Road Project - Rock
1 EARTHQUAKE-CATALOG-FILE NAME: C:\Program Files\EQSEARCH\Allquake.dat
MAGNITUDE RANGE:
MINIMUM MAGNITUDE: 4.00
IMAXIMUM MAGNITUDE: 9.00
SITE COORDINATES:
SITE LATITUDE: 33 .7097
SITE LONGITUDE: 117.3566
t
SEARCH DATES:
START DATE: 1800
END DATE: 2000
SEARCH RADIUS:
62 .1 mi
100.0 km
{ ATTENUATION RELATION: 21) Sadigh et al. (1997) Horiz. - Rock
UNCERTAINTY (M=Median, S=Sigma) : M Number of Sigmas: 0.0
ASSUMED SOURCE TYPE: SS [SS=Strike-slip, DS=Reverse-slip, BT=Blind-thrust]
f SCOND: 1 Depth Source: A
II Basement Depth: 5. 00 km Campbell SSR: Campbell SHR:
COMPUTE PEAK HORIZONTAL ACCELERATION
' MINIMUM DEPTH VALUE (km) : 0 .0
EARTHQUAKE EPICENTER MAP
1100 Nichols Road Project - Rock
1000
900 \
800
700 -
600 \
500 \ 1
400 - \
300
200
LEGEND -�-
M = 4
100
M = 5
M = 6
4 �
M = 7
o �•
0 M = 8
-100 1119111911191
-400 -300 -200 -100 0 100 200 300 400 500 600
1
EARTHQUAKE EPICENTER MAP
Nichols Road Project -Rock
f 200
r
150 y.
X
1
Y SITS•
X x
K
X
0
, x
i
-50
f
-100
100 150 200 250 300 350
-------------------------
EARTHQUAKE SEARCHRESULTS
Page 1 ----------
i ----------------------------------------- -----
1 TIME j j j SITE jSITE1 APPROX.
FILE1 LAT. j LONG. j DATE j (UTC) 1DEPTHIQUAKE1 ACC. j MM 1 DISTANCE
1 CODE1 NORTH 1 WEST 1 1 H M Sect (km) 1 MAG. j g 11NT. 1 mi [km]
----+-------+--------+----------+--------+-----+-----+-------+----+----
i DMG 133.70001117-4000105/13/19101 620 O.Oj 0. 01 5.001 0.210 1VII11 2 .6 ( 4.1)
DMG 133 .70001117.4000104/11/19101 757 0.0 � 0.01 5 .001 0.210 jVIIIj 2 .6 ( 4.1)
( DMG 133.70001117.4000105/15/191011547 0.0i 0. 01 6.001 0.379 1 X 1 2 .6( 4.1)
fl DMG 133 .73301117.4670110/26/l954j162226.01 0.01 4.101 0.056 j VI j 6.5 ( 10.5)
DMG 133 .74801117.4790106/22/19711104119.01 8 .01 4.201 0.052 j VI 1 7.5 (- 12.1
DMG 133.72501117 .4980101/03/19561 02548. 9 � 13 .71 4 .701 0.068 j VI 1 8.2 ( 13.2)
II DMG 133.71701117 .5070108/06/1938122 056. 01 10.01 4 .001 0.037 j V 1 8.6 ( 13.9)
l DMG 133.83301117 .4000106/05/19401 82727 .Oj 0.01 4 .001 0.036 j V j 8.9( 14.3)
DMG 133.69901117.5110105/31/19381 83455.41 10.01 5.501 0.113 j VI11 8.9 ( 14.3)
DMG j33 .71701117.5170j06/19/193511117 001 0.01 4 .001 0.035 j V 1 9.2 ( 14.8)
DMG, 133 .73801117. 1870j04/27/19621 91232 . 11 5.71 4 . 101 0.034 1 V 1 9.9( 16.0)
( DMG 133 .68201117.5530107/05/1938118 655.71 10. 01 4 . 501 0.039 j V 1 11.4 ( 18.4)
DMG 133 .70001117.1000106/11/19021 245 0.01 0.0� 4 .501 0.028 1 V 1 14 .7 ( 23.7)
f( MGI 133. 80001117.6000104/22/191812115 0.01 O. Oj 5. 001 0.040 j V j 15.3 ( 24.6)
+II DMG 133 .80001117.6000109/16/190311210 0.01 0.01 4 . 001 0.017 j IV j 15 .3 ( 24.6)
DMG 133.93301117.3670110/24/19431 02921.01 0.01 4 . 001 0.017 1 IV j 15.4 ( 24.8)
I DMG 133.90001117.2000112/19/18801 0 0 0.01 0. 01 6. 001 0.084 j VIIj 15.9( 25.6)
MGI 134. 00001117-4000105/22/19071 652 0.01 0.01 4.601 0.019 1 IV j 20.2 ( 32.5)
T-A 134. 00001117.4200109/10/192011415 0.01 0. 01 4 .301 0.014 1 IV 1 20.4 ( 32.8)
T-A 134.00001117.4200104/12/188811315 0.01 0.01 4.301 0.014 1 IV j 20.4 ( 32.8)
1 DMG 133 .99601117.2700102/17/19521123658.31 16. 01 4.501 0.017 1 IV 1 20.4 ( 32.8)
DMG 134. 00001117.2830111/07/193911852 8.41 0 .01 4 .701 0.020 1 IV i 20.5 ( 33.0)
DMG 133.75001117.0000104/21/19181223225.01 O.Oj 6.80j 0 .110 j VIIj 20.7( 33.2)
f DMG j33 .75001117. 0000106/06/191812232 0.01 0. 01 5.001 0.026 1 V j 20.7( 33.2)
DMG 134.00001117.2500111/01/19321 445 0.01 0.01 4 .001 0 .011 j III) 21.0( 33.7)
1 DMG 134.00001117.2500107/23/19231 73026.01 0.0; 6.251 0.072 1 VI 1 21.0( 33.-7)
DMG 133 .95001117-5830104/11/19411 12024 .01 0.01 4 .001 0.010 1 IIIj 21.1( 33.9)
J DMG 133 .80001117. 0000112/25/189911225 0.01 0. 01 6.401 0.079 1 VI11 21.4 ( 34.4)
+I PDP j33.80601117.7150103/07/20001002028 .2j 11.01 4 .001 0.010 1 II11 21.6( 34.8)
DMG j34 .00001117.5000107/03/190811255 0.01 0.01 4.001 0.010 j IIIj 21.7( 34.9)
MGI 134 .00001117.5000112/16/1858110 0 0 .01 0.01 7.001 0.118 1 VI11 21.7( 34.9)
T-A 133 .50001117. 0700112/29/18801 7 0 0.01 0.01 4.301 0.013 1 1111 21.9( 35.3)
DMG 134 .03301117.3500104/18/19401184343 . 91 0. 01 4.401 0.013 1 I111 22.3 ( 35.9)
DMG 134 . 03301117 .3170109/03/19351 647 0.01 0.01 4.501 0.015 1 IV 1 22 .4( 36.1)
PAS j34.02301117.2450110/02/19851234412 .41 15.21 4.801 0.019 1 IV j 22 .6( 36.3)
GSP 134.02401117.2300103/11/19981121851.81 14. 01 4.501 0.014 j IV 1 22 .9( 36.8)
PDP 134.04701117.2550102/21/2000j134943 .11 15. 01 4.501 0.013 j II11 24.0( 38.6)
DMG 134. 04301117.2280104/03/19391 25044 .71 10. 01 4. 001 0 .008 j II11 24.2( 38.9)
DMG 133 .85401117. 7520110/04/19611 22131.61 4 .31 4. 101 0 .009 1 II11 24.8( 39. 9)
DMG 133 .71001116. 9250109/23/19631144152 .61 16.51 5.001 0 .019 1 IV 1 24.8( 39. 9)
DMG 133 .50001117. 0000108/08/192511013 0 .01 0.01 4.501 0.012 1 II11 25.1( 40.4)
GSP 133 .95101117. 7090101/05/19981181406.51 11. 01 4.301 0.010 1 II11 26.2 ( 42.1)
t MGI 133 .80001117. 8000105/20/19171 945 0. 01 0. 01 4.001 0 .007 1 II 1 26.2( 42.2)
I MGI 133 . 80001117.8000105/19/19171 719 0. 01 0. 01 4.001 0 .007 1 II 1 26.2 ( 42 .2)
MGI 133 . 80001117. 8000111/07/192611948 0. 01 0. 01 4 .601 0 .012 j II1) 26.2( 42.2)
MGI 133 . 80001117. 8000111/04/192612238 0. 01 0 .01 4.601 0 . 012 1 II11 26.2 ( 42.2)
MGI 133 . 80001117. 8000105/19/19171 635 0. Oj 0.01 4.001 0 .007 1 II 1 26.2 ( 42.2)
} MGI 133 .8000j117. 8000111/10/192611723 0 . 01 0. 01 4.601 0.012 1 II11 26.2 ( 42.2)
MGI 133 . 80001117. 8000111/09/192611535 0 . 01 0.01 4 .601 0 .012 1 II11 26.2 ( 42.2)
T-A 134 -08001117.2500110/07/18691 0 0 0. 01 0. 01 4.301 0 .009 1 II11 26.3 ( 42.3)
DMG 133 .76701117.8170108/22/19361 521 0. 01 0.01 4 .001 0.007 1 II 1 26.7 ( 43. 0)
MGI 133 . 80001116.9000104/29/19181 2 0 O . Oj 0.01 4 .001 0.007 1 II 1 26.9 ( 43 .4)
MGI 133 .80001116. 9000104/23/1918j1415 0. 01 0.01 4 .001 0 .007 1 II 1 26.9 ( 43.4)
i
r
-------------------------
EARTHQUAKE-SEARCH-RESULTS
Page 2
--------------------------------------------- _ ____
I 1 I TIME I I SITE ISITEI APPROX
FILEI LAT. I LONG. DATE I (UTC) IDEPTHIQUAKEI ACC. I MM I DISTANCE
CODEI NORTH I WEST I I H M Secl (km) I MAG. 1 g 11NT. 1 mi [km)
----------+--------+----------+--------+-----+-----
+-------+----+-----
MGI I33 . 8000I116.9000106/14/191811024 0.0 0. 01 4 . 001 0 . 007 I II 1 26.9( 43 .4)
MCI I33.80001116. 9000112/18/192011726 0.01 0.01 4.001 0 .007 I II 1 26. 9( 43 .4)
DMG 134. 10001117.3000102/16/1931I1327 0.01 0.01 4 .001 0 . 007 I II 1 27. 1( 43 .7)
it MGI 134. 10001117.3000112/27/1901111 0 0.01 0.01 4.601 0 .012 I IIII 27.1( 43 .7)
MGI I34.10001117 .3000107/15/1905I2041 0.01 0.01 5.301 0 .022 I IV ( 27.1( 43 .7)
( MGI 134 .10001117.3000111/22/19111 257 0.01 0.01 4.001 0 . 007 II 1 27.1( 43 .7)
DMG 134.01701117 .0500102/19/1940112 655.71 0. 01 4 .601 0 .011 I IIII 27.5 ( 44 .3)
I� DMG 134.11201117 .4260103/19/19371 12338.41 10.01 4.001 0 .006 I II 1 28.1( 45.1)
MCI 134.00001117 .7000112/03/19291 9 5 O.OI 0.01 4.001 0 .006 I II 1 28.1( 45.2)
DMG 134.11801117.3410109/22/19511 82239.11 11.91 4.301 0 . 008 I IIII 28.2 ( 45.4)
DMG I33.5450I117 .8070I10/27/196911316 2.31 6.51 4.501 0 .010 I IIII 28.3( 45.5)
MCI I34. 1000I117 .2000104/23/192312113 0. 01 0.01 4.001 0 .006 I II 1 28.4( 45 .7)
DMG 134.00001117 .0000106/30/19231 022 0.01 0. 01 4.501 0.010 I IIII 28.6( 46.1)
DMG 134.1270I117 .3380102/23/19361222042.71 10.01 4.501 0 .010 I IIII 28.8( 46.4)
11 DMG 134.11601117.4750106/28/1960120 048.01 12 .01 4.101 0 . 007 1 II 1 28.9( 46.4)
DMG 133.50001116.9170111/04/19351 355 0.01 0. 01 4.501 0. 010 1 II11 29.1( 46.9)
DMG 134.13201117.4260104/15/1965120 833 .31 5.51 4.50I 0. 009 I II11 29.4( 47.3)
DMG 134.12401117.4800105/15/1955117 326.01 7.61 4.001 0 . 006 1 II 1 29.5( 47.4)
USG 134.13901117.3860102/21/19871231530.11 2.61 4.071 0 . 006 1 II 1 29.7( 47.8)
DMG 134.14001117 .3390102/26/19361 93327.61 10.01 4.001 0. 006 I II 1 29.7( 47.8)
PAS 134.13501117 .4480101/08/19831 71930.41 4.61 4.101 0 .006 I II 1 29.8 ( 48.0)
1 PAS 133.7010I116.8370108/22/19791 2 136.31 5.01 4. 101 0 .006 I II 1 29.8 ( 48.0)
PAS 134.0060I117.7390102/18/19891 717 4.81 3 .31 4.301 0. 008 I II 1 30.0 ( 48.3)
DMG 134.12701117.5210112/27/1938110 928.61 10.01 4.001 0. 006 1 II 1 30.3 ( 48.8)
DMG 134.14001117.5150101/01/19651 8 418.01 5.91 4.401 0. 008 I II 1 31.1( 50.0)
MGI 133 .70001117.9000I07/08/19021 945 0.01 0.01 4.001 0. 005 I II 1 31.2 ( 50.2)
GSP 134.16801117.3370106/28/19971214525. 11 9.01 4.201 0 . 006 1 II 1 31.7( 50.9)
DMG 133 .45401116.8980107/29/19361142252.81 10.01 4.001 0 . 005 ( II 1 31.7 ( 51.1)
DMG 133.45601116. 8960106/16/19381 55916.91 10.01 4.001 0. 005 1 II 1 31.8 ( 51.1)
MGI 133.80001117 .9000105/22/19021 740 0.01 0.01 4.301 0 . 007 1 II 1 31.8 ( 51.2)
GSP I33 .62001117. 9000I04/07/198912OO730.21 13 .01 4.501 0 . 008 ( II11 31.8 ( 51.2)
T-A 134.17001117 .3200I12/02/18591221O 0.01 0.01 4.301 0 .007 1 II 1 31.8 ( 51.2)
DMG 133 .96801116.8820106/27/19591162211.11 13 .81 4.001 0 . 005 i II 132.5 ( 52.4)
DMG 134.10001117. 6830101/18/19341 214 0.01 0.01 4.00I 0 . 005 I II i 32.8 ( 52.8)
1 DMG 134.10001117 . 6830101/09/193411410 0.01 0.01 4.501 0. 008 1 II 1 32.8 ( 52.8)
DMG, 134.16701117 .5330103/01/19481 81213.01 0 .01 4.701 0. 009 1 II11 33 .1( 53 .3)
GSP 134.19001117.3900112/28/19891094108.11 15.01 4.501 0 . 008 I II 1 33 .2 ( 53 .4)
GSP 134 .08501116.9890106/30/19921214900.31 3 .01 4 .401 0 . 007 1 II 1 33 .4 ( 53.7)
DMG 133 .95001116. 8500109/28/19461 719 9. 01 0 . 01 5.001 0 . 012 1 II11 33 .5 ( 53.8)
i GSP 134 . 0970I116. 9960112/05/19971170438.91 4 .01 4.101 0 . 005 I II 1 33 .8 ( 54.4)
DMG 134 .20001117 .4000107/22/18991 046 0.01 0. 01 5.50I 0. 018 1 IV 1 33 .9 ( 54.6)
MCI I34 .2000I117.3000104/13/191311045 0.01 0.01 4.001 0. 005 1 II 134.0 ( 54.7)
' DMG I34 .18301117 .5480109/01/19371163533 .5I 10 .01 4.501 0. 007 1 II 134.5 ( 55.5)
GSP 134 .11001117.7200104/17/19901223227.21 4 .01 4.601 0 . 008 1 II 1 34.6( 55.7)
DMG 134.20001117.5000I06/14/189211325 0. 01 0 . 01 4 .901 0 . 010 1 II11 34.8( 56.1)
1 GSP 134. 12001116.9980I06/29/19921144126. 01 4 . 01 4 .401 0 . 006 1 II 1 35.0 ( 56.3)
I GSP 134. 1300I117. 7000I03/01/19901003457. 1I 4 . 01 4. 001 0. 004 1 I 1 35 . 1( 56.4)
DMG 133 .6500I116.7500I09/05/19501191956. 01 0. 01 4.801 0 . 009 1 II11 35. 1( 56.5)
PAS 133 .96501117 .8860101/01/19761172012 . 91 6.21 4 .201 0 . 005 1 II 1 35 . 1( 56.5)
MCI 133 .50001116.8000111/26/1916117 5 0. 01 0. 01 4 .001 0. 004 1 I 1 35. 1 ( 56.5)
MCI 133 .50001116.8000103/30/1918116 5 0. 01 0 .01 4 .60I 0 . 008 1 II 1 35 .1 ( 56.5)
MCI I33 .5000I116. 8000I06/02/19171 435 0. 01 0 . 01 4.00I 0 . 004 1 I 1 35.1 ( 56.5)
f MGI 133 .50001116. 8000105/31/19171 435 0.01 0. 01 4.00I 0 . 004 1 1 1 35. 1( 56.5)
i,
(II EARTHQUAKE-SEARCH-RESULTS Page 3
FILEI LAT. LONG. I TIME I SITE ISITEI APPROX.
DATE I (UTC) IDEPTHIQUAKEI ACC. I MM I DISTANCE
CODEI NORTH I WEST I H M S e c I (km) I MAG,
----+-------+- ------- I 9 II--- m- [km]
DMG I34. 1830I117.5830I10/03/1948I 24628. 01 0. 01 4.001 0. 004 I I 135.2 ( 56.6)
GSP j34. 1400I117.6900I03/02/1990I172625.4I 6.01 4.601 0.007 II 135.3 ( 56.8)
DMG I34.2170I117.4670I03/25/1941I234341. 01 0.01 4.00 0.004 I 135.6( 57.3)
GSP I34.1400I117.7000IO2/28/l990I234336.61 5.01 5.201 0.013 I IIII 35.6( 57.3)
DMG I33 . 6170I117.9670I03/11/1933I 154 7. 81 0. 01 6.301 0.034 I V 35.7 ( 57.4)
GSP I33 . 6500I116.7400I12/02/1989I231647.8I 14.01 4 .201 0.005 I II ( 35.7 ( 57.4)
PAS I34. 1360I117.7090I06/26/1988115 458.51 7.91 4 .601 0.007 I II 35.7( 57.4)
DMG I33. 6650I117.9790I10/20/19611214240.71 7.21 4.001 0.004 I I ` 35.9( 57.7)
PAS I34.2110I117.5300I10/19/19791122237.81 4.91 4 .101 0.005 I II 36.0 ( 57.9)
DMG I34.2110I117.5300I09/01/193711348 8.21 10. 01 4 .501 0.007 I II 136. 0( 57.9)
DMG I33 . 6590I117.9810I10/20/1961 20 714.51 6.11 4 .001 0.004 I I 136.0 ( 58.0)
DMG I33.2670I117. 0170106/07/1935I1633 0.01 0.01 4 .001 0.004 I I 36.3 5
GSP I34. 1920I117.0950104/06/1994I190104. 1I 7.0I 4.801 0.008 IIII 36.5 ( 58.8)
[� DMG I33. 9670I116.8000I09/07/19451153424.01 0.01 4.301 0.005 I II 36.5 ( 58.8)
DMG I33.6800I117.9930I11/20/1961I 85334.71 4.41 4 .001 0.004 I I 136.6( 58.9)
DMG 133 .4880I116.7770I06/12/1959111 313 .01 5.71 4.001 0.004 I I 136.7 ( 59.0)
I DMG I33 .6540I117.9940I10/20/1961I194950.5I 4.61 4 .301 0.005 II 136.8 ( 59.3)
GSP 134. 1500I117.7200I03/01/19901032303 .0I 11.01 4.701 0.008 II 136. 8 ( 59.3)
DMG 134.2000I117.1000I09/20/19071 154 0.01 6.001 0.0 ( V 36.9( 59.4)
GSP I33 .6320I116.7190I07/19/1999I220927.5I 1 O.OI 4 .201 0. 024 24 I II 1 37.0 ( 59.6)
I , DMG 134. 1000I117.8000I03/31/193112033 0 .01 0.01 4.001 0.004 I I ( 37.0( 59.6)
DMG 133 .75001118.0000111/16/193412126 0.01 0.01 4 .001 0.004 I I 137.0 ( 59.6)
DMG i33 .5750I117.9830I03/11/1933I 518 4.01 0.01 5.201 0. 012 IIII 37.2 ( 59.8)
DMG I33 .5670I117.9830I07/07/193711112 0.01 0.01 4. 001 0.004 I 137.3 ( 60.1)
DMG I33 .5670I117.9830I04/17/1934I1833 0.01 0.01 4 .001DMG 134. 1330 0.004 I I 37.3 ( 60.1). 10/1938I1440 0 01 0.01 4.001 0.004 I
GSP I34. 1120I116.9200I10/01/1998 181816.OI 4.OI 4.70� 0.007 II I 37.4 ( 60.37.4 ( 60.2)
DMG 133 . 8000I118 .0000I10/21/1913I 938 0.01 0.01 4.001 0. 004 1 I 137.5 ( 60.3)
005 I II 37.6( 60 5)
GSP 134. 1210I116.9280I08/16/1998I133440.21 6.01 4.701 0.007 I II 37.5 ( 60.4)
PAS 134. 1510I116.9720I11/20/1978I 655 9.51 6.11 4 .301 0. 1
DMG I33 . 91701116.7500(O1/25/1933I1444 0. 01 0.01 4.001 0.004 I 137.6 ( 60.5)
j DMG I33 . 6000I118 .0000I03/11/1933I 217 0. 01 O. OI 4.50I 0.006 I II 137.7 ( 60.7)
DMG I33 . 6000I118.0000I03/11/19331 231 0. 01 0. 01 4.401 0.006 I II 137.7 ( 60.7)
DMG I33 . 6710I118.0120I10/20/1961I223534.2I 5.61 4.101 0.004 I 137.7 ( 60.7)
GSP I34 . 1800I117.0200I12/04/1991I081703.5I 11.01 4 .001 0.004 I ( 37.8 ( 60.
DMG I33 . 9330I116. 7500I10/28/1944I183016. OI 8)
O.OI 4.40I 0.005 I II 138. 1( 61.2)
DMG I33 . 93301116.7500I08/06/1938I 228 0.01 0. 01 4. 001 0.004 I 1138. 1 ( 61.2)
DMG I33 . 97601116.7750I10/17/1965I 94519. 01 17.01 4 .901 009 I 38.1 ( 61.3)
IIII
DMG I34 . 16701116.9830I10/16/1951I1241 S. OI O. OI 4 . 00I 0 0..004 I I 138. 1 ( 61.4)
DMG I33 . 80001116.7000I08/11/191112340 0. 01 0. 01 4 .501 0.006 I II 138.2 ( 61.5)
DMG I33 . 80001116. 7000I08/11/1911I1820 0. 01 0.01 4 .001 0 .004 I 138.2 ( 61.5)
DMG I34. 1000I116. 8830I10/24/193511451 0.01 0.01 4 .501 0. 006 I II 138.2 ( 51.5)
DMG I34. 1000I116. 8830I10/24/1935I1452 0. 0� 0. 01 4 .501 0.006 I II 38.2 ( 61.5)
DMG I34. 1000I116. 8830110/24/1935I1527 0. OOI 0. 004 I I 138.2 ( 61.5)
0� O.OI 4 .
DMG I33 .9730I116. 7690I06/10/1944I111531. 9+ 10.0I 4 . 001 0 . 004 I I 1 38. 3 ( 61.6)
DMG 133 . 61701118. 0170110/02/193311326 1.OI 0. 01 4.001 0. 004 I I 138.5 ( 61.9)
DMG 133 . 61701118. 0170I03/14/1933I19 150. 01 0. 01 5.101 38.5 ( 61.9)
0.010 IIII
' DMG 133. 6170I118 . 0170I03/15/1933I111332. 0I 0.01 4.901 0. 010 III
DMG 133 . 6000I118. 0170I12/25/1935I1715 0.01 0.01 4 .501 0 . 008 38.5 ( 61.9)
II 138. 7 ( 62.3)
DMG I33 .61701118.0330I05/21/1938I 944 0.01 0. 01 4. 001 0.004 I I 39.4 ( 63.4)
DMG 134. 02901116.7870104/30/19541 03623.91 11. 11 4 .201 0. 004 I I 39.4 ( 63.4)
DMG 133 . 95001116.7330I04/26/19421151023.OI 0. 01 4 .001 0.004 I I 39.4 ( 63.4)
DMG (34.2670I117.5180I09/12/1970I141011.2I 8 . 01 4. 101 0. 004 I 139.6( 63.7)
------- ------ -- ------ --- -
j EARTHQUAKE-SEARCH RESULTS
Page 4
I TIME 1 SITE ISITEI APPROX.
FILE LAT. I LONG. I DATE I (UTC) IDEPTHIQUAKEI ACC. I MM I DISTANCE
CODE NORTH I WEST I I H M Secl (km) I MAG 1 g 11NT. 1 mi [km]
-------------------------------------------------------------------------------
DMG 134. 01401116.7710106/10/19441111150.51 10.01 4 .501 0. 006 I II 1 39.6( 63 .7)
DMG 133 .68301118 .0500103/11/193311250 0.01 0.01 4.401 0 .005 ( II 1 39. 9( 64.2)
DMG 133 .68301118. 0500103/11/19331 658 3 .01 0.01 5.501 0.014 I II11 39.9( 64.2)
DMG I34 .27001117.5400109/12/19701143053.01 8.01 5.401 0.012 1 IIII 40.1( 64.5)
DMG I33 .91701116.7000111/17/19431112841.01 0.01 4 .501 0.005 I II 1 40.3( 64.8)
1 DMG 133 . 99601117 . 9750106/15/19671 458 5.51 10.01 4.101 0.004 ! I 1 40.6( 65.3)
PAS 134 .19801116. 9590104/01/19781105227.41 8.01 4. 001 0.003 I 1 40.7( 65.5)
MGI 133 .20001117.0000107/20/19231 7 0 0.01 0.01 4. 001 0.003 I 1 40.7( 65.6)
GSP 134 . 17801116. 9220106/28/19921170131.91 13 .01 4.701 0.006 I II 1 40.8( 65.7)
DMG 133 .70001118. 0670107/20/19401 4 113.01 0.01 4 .001 0.003 1 I 1 40.8( 65.7)
DMG 133 .70001118. 0670102/08/19401165617.01 0.01 4 . 001 0 .003 1 I 1 40.8( 65.7)
DMG 133 .70001118. 0670103/11/19331 51022.01 0.01 5. 101 0.009 1 I111 40.8( 65.7)
DMG 133 .70001118.0670103/11/19331 85457.01 0.01 5.101 0.009 1 II11 40.8( 65.7)
DMG 133 . 97601116.7210106/12/19441104534.71 10.01 5. 101 0 .009 1 II11 40.8( 65.7)
DMG 133.48301116.7000112/28/19481125341.01 0.01 4 . 001 0.003 1 I 1 40.9( 65.8)
DMG 134. 18001116.9200101/16/19301 034 3 .61 0.01 5. 101 0.009 II11 41.0( 65.9)
j DMG 134 .18001116.9200101/16/19301 02433 .91 0.01 5 .201 0.010 1 II11 41.0( 65.9)
( DMG 134.28101117 .5520109/13/19701 44748.61 8.01 4 .401 0.005 1 II 1 41.0( 66.0)
PAS 133 .55801116.6670106/15/19821234921.31 12.21 4. 801 0 .007 1 II 1 41.0( 66.0)
PAS 133 .97601116.7130108/06/19841 81436.61 14.21 4. 301 0.004 1 I 1 41.2( 66.4)
GSP 134 .14101116.8570109/19/19971223714.51 10.01 4 . 101 0.004 I 141.3( 66.5)
DMG 134 .30001117 .5000107/22/189912032 0.01 0.01 6.501 0 .031 V 1 41.6( 66.9)
DMG 133 .56101118 . 0580101/15/19371183547.01 10.01 4 . 001 0 .003 I 141.6( 66.9)
DMG 134 .10001116 .8000110/24/193511448 7.61 0.01 5. 101 0 .009 1 II11 41.8( 67.2)
DMG 133 .75001118.0830103/11/19331 311 0.01 0.01 4 .201 0 .004 I 1 41.8( 67.3)
DMG 133 .75001118 .0830103/12/1933115 2 0.01 0.01 4.201 0 .004 I 1 41.8( 67.3)
DMG 133 .75001118.0830103/11/19331 751 0.01 0.01 4 .201 0.004 1 I 1 41.8( 67.3)
DMG 133 .75001118 .0830103/11/1933 837 0.01 0.01 4 .001 0.003 I 1 41.8( 67.3)
DMG 133 .75001118 .0830103/11/19331 2 5 0.01 0.01 4 .301 0.004 1 I 1 41.8( 67.3)
DMG 133 .75001118 .0830104/02/19331 8' 0 0.01 0.01 4. 001 0 .003 I I 41.8( 67.3)
DMG 133 .75001118 .0830103/11/19331 553 0.01 0.01 4 .001 0.003 1 I 41.8 ( 67.3)
DMG 133 .75001118 .0830103/11/19331 2 9 0.01 0.01 5 . 001 0 .008 1 III1 41.8( 67.3)
DMG 133 .75001118 .0830103/15/19331 432 0.01 0.01 4 . 101 0 .003 1 I 41.8 ( 67.3)
DMG 133 .75001118 .0830103/23/193311831 0.01 0.01 4 .101 0 .003 1 I 41.8 ( 67.3)
DMG 133 .75001118 .0830103/15/19331 540 0.01 0.01 4 .201 0 .004 1 I 1 41.8 ( 67.3)
DMG 133 .75001118 .0830103/31/193311049 0.01 0.01 4 .101 0 .003 1 I 1 41.8( 67.3)
DMG 133 .7S001118 .0830103/11/19331 436 0.01 0.01 4 .601 0 .006 1 II 1 41.8 ( 67.3)
DMG 133 .75001118 .0830103/12/19331 740 0 .01 0.01 4 .201 0 .004 1 I 1 41.8 ( 67.3)
DMG 133 .75001118 .0830103/11/193311357 0. 01 0 .01 4 .001 0 .003 1 I 1 41.8 ( 67.3)
DMG 133 .7S001118 .0830103/11/19331 2 4 0.01 0 .01 4 . 901 0 .007 1 II 1 41.8 ( 67.3)
DMG 133 .75001118 .0830104/01/19331 642 0.01 0.01 4 .201 0 .004 1 I 1 41.8 ( 67.3)
DMG 133 .75001118 .0830103/11/19331 339 0.01 0.01 4 .001 0 .003 1 I 1 41.8 ( 67.3)
DMG 133 .75001118 .0830103/11/19331 8 8 0.01 0 .01 4 .501 0.005 1 II 1 41.8 ( 67.3)
DMG 133 .75001118 .0830103/11/19331 832 0 .01 0 .01 4 .201 0.004 1 I 1 41.8 ( 67.3)
DMG 133 .75001118 .0830103/11/19331 210 0 .01 0.01 4 .601 0.006 1 II 1 41.8 ( 67.3)
DMG 133 .75001118 .0830103/11/19331 911 0.01 0 .01 4 .401 0 .005 1 II 1 41.8 ( 67.3)
DMG 133 .75001118 .0830103/12/19331 6 1 0 .01 0. 01 4 .201 0.004 1 I 1 41.8 ( 67 .3)
DMG 133 .75001118 .0830103/11/19331 635 0 .01 0.01 4 .201 0 .004 1 I 1 41.8 ( 67.3)
DMG 133 .75001118 .0830103/11/19331 521 0.01 0 .01 4 .401 0 .005 1 II 1 41.8 ( 67.3)
DMG 133 .7S001118 .0830103/20/193311358 0.01 0 .01 4 . 101 0.003 1 I 1 41.8 ( 67.3)
DMG 133 .75001118 .0830103/11/19331 555 0 .01 0 .01 4 . 001 0.003 1 I 1 41.8 ( 67.3)•
DMG 133 .75001118 .0830103/23/19331 840 0.01 0.01 4 .101 0.003 1 I 41.8 ( 67.3)
DMG 133 .75001118 . 0830103/25/193311346 0. 01 0.01 4 . 101 0 .003 1 I 1 41.8 ( 67.3)
------------- -- ----------
EARTHQUAKE SEARCH RESULTS
---------------------- ---
Page 5
--- --- --------------------------------------------------------------- ----------
1 I I I TIME I I I SITE ISITEI APPROX.
FILEI LAT. I LONG. I DATE I (UTC) IDEPTHIQUAKEI ACC. I MM I DISTANCE
CODEI NORTH I WEST I I H M Secl (km) I MAG. 1 g IINT. I mi [km]
----+-------+--------+----------+--------+-----+-----+-------+----+------------
DMG 133 .7500I118. 0830, 03/11/19331 618 0. 01 0 . 01 4 .20I 0.004 I I 1 41.8 ( 67.3)
DMG 133 .75001118.0830103/12/19331 448 0. 01 0 .01 4 . 001 0.003 I I 1 41.8 ( 67.3)
DMG 133 . 75001118. 0830103/30/193311225 0. 01 0 .01 4 .401 0.005 I II 141.8 ( 67.3)
DMG 133 . 75001118 . 0830I03/11/193311147 0.01 0 . 01 4 .40I 0.005 II 1 41. 8 ( 67.3)
DMG I33 .7500I118. 0830I03/14/1933I1219 0.01 0 .01 4 .501 0.005 II 1 41.8 ( 67.3)
DMG 133 .75001118. 0830103/11/19331 3 5 0.01 0 .01 4 .201 0.004 I I 1 41.8 ( 67.3)
DMG 133 .75001118. 0830103/12/19331 616 0.01 0 .01 4 .60I 0.006 I II 1 41.8 ( 67.3)
DMG 133 .75001118.0830103/11/19331 323 0.01 0 . 01 5 . 00I 0.008 I IIII 41.8 ( 67.3)
DMG 133 .75001118.0830103/15/19331 2 8 0.01 0 .01 4 . 101 0.003 I I 1 41.8 ( 67.3)
DMG 133 . 75001118 .0830103/11/19331 347 0. 01 0 .01 4 . 101 0.003 I I 1 41.8 ( 67.3)
DMG 133 .75001118.0830103/11/19331 910 0.01 0 .01 5 .10I 0.009 I IIII 41.8 ( 67.3)
DMG I33 .75001118.0830I03/12/193311651 0.01 0 .01 4 .001 0.003 I I 1 41.8( 67.3)
�- DMG I33 .7500I118.0830103/12/193311738 0.01 0.01 4 .501 0.005 I II 1 41.8 ( 67.3)
DMG 133 . 75001118.0830103/11/19331 515 0. 01 0 .01 4 .001 0.003 I I 1 41.8 ( 67.3)
DMG 133 .75001118.0830103/11/19331 513 0.01 0.01 4 .701 0.006 I II 1 41.8 ( 67.3)
DMG I33 .75001118 .0830103/19/1933I2123 0.01 0.01 4 .201 0.004 I I 1 41.8 ( 67.3)
DMG I33 .7500I118 .0830I03/21/19331 326 0. 01 0 .01 4 . 10I 0.003 I I 1 41.8 ( 67.3)
DMG I33 .75001118.0830I03/11/1933I2232 0.01 0.01 4 .101 0.003 I I 1 41.8 ( 67.3)
DMG 133 .75001118.0630103/11/19331 611 0.01 0.01 4 .40I 0.005 I II 1 41.8 ( 67.3)
J DMG 133 .75001118 .0830103/12/19331 027 0.01 0 .01 4 .401 0.005 I II 1 41.8 ( 67.3)
DMG I33 .75001118 .0830103/11/193311141 0.01 0 .01 4 .20I 0.004 I I 1 41.8( 67.3)
DMG I33 .75001118.0830103/11/193311138 0.01 0.01 4 . 00I 0.003 I I 1 41.8 ( 67.3)
DMG 133 .75001118 .0830103/14/19331 036 0.01 0 .01 4 .201 0.004 I I 1 41.8 ( 67.3)
DMG 133 .75001118 .0830103/12/19331 546 0.01 0.01 4 .401 0.005 I II 1 41.8 ( 67.3)
DMG 133 .75001118.0830103/12/19331 034 0.01 0.01 4 .001 0.003 I I 1 41.8 ( 67.3)
DMG 133 .75001118.0830103/11/19331 257 0.01 0 .01 4 .201 0.004 I I 1 41.8 ( 67.3)
DMG I33 .7500I118.0830103/11/193312231 0.01 0 .01 4 .401 0.005 I II 1 41. 8 ( 67.3)
DMG 133 .75001118.0830103/12/19331 835 0.01 0.01 4 .20I 0.004 I I 1 41. 8( 67.3)
DMG 133 .75001118.0830103/11/19331 759 0.01 0.01 4 .101 0.003 I I 1 41.8 ( 67.3)
DMG 133 .75001118.0830103/11/19331 211 0.01 0.01 4 .401 0.005 I II 141.8( 67.3)
DMG I33 .75001118 .0830103/17/193311651 0.01 0.01 4. 10I 0.003 I I 1 41.8 ( 67.3)
DMG 133 .75001118.0830103/11/19331 216 0.01 0.01 4 .801 0.007 I II 1 41.8 ( 67.3)
DMG 133 .75001118.0830103/11/19331 227 0.01 0.01 4 .601 0 .006 I II 1 41.8 ( 67.3)
DMG I33 .7500I118.0830103/12/193312354 0.01 0.01 4 .50I 0.005 I II 141.8 ( 67.3)
DMG I33 .75001118.0830103/11/193311045 0.01 0.01 4 . 001 0.003 1 I 1 41.8 ( 67.3)
DMG 133 .75001118 .0830103/11/19331 524 0. 01 0.01 4 .201 0.004 1 I 141.8 ( 67.3)
DMG 133 .75001118 .0830103/11/1933122 0 0. 01 0. 01 4 .401 0.005 I III 41.8 ( 67.3)
DMG 133 .75001118 .0830I03/11/1933I2240 0.01 0.01 4 .401 0 .005 1 II 1 41. 8 ( 67.3)
DMG 133 .75001118 .0830103/11/1933123 5 0. 01 0. 01 4.20I 0.004 1 I 1 41.8 ( 67.3)
DMG 133 . 7500I118.0830103/13/1933I131828. 01 0.01 5 .301 0 .011 I IIII 41 . 8 ( 67.3)
DMG 133 .75001118 .0830103/13/193311532 0.01 0.01 4 . 101 0 .003 1 I 141.8 ( 67.3)
DMG 133 .75001118 .0830103/11/19331 3 9 0.01 0. 01 4 .40I 0 .005 1 III 41.8 ( 67 .3)
DMG 133 .75001118 .0830103/13/193311929 0 .01 0. 01 4 .201 0 .004 I I 141.8 ( 67.3)
DMG 133 .75001118 .0830103/18/193312052 0. 01 0. 01 4 .20I 0 .004 1 I 141. 8 ( 67.3)
DMG 133 .75001118 . 0830103/11/19331 230 0 .01 0 .01 5 . 101 0 .009 I II11 41.8 ( 67 .3)
DMG 133 .75001118.0830103/11/19331 336 0. 01 0.01 4 . 001 0.003 1 I 141. 8 ( 67.3)
DMG 133 .75001118. 0830103/14/193312242 0 . 01 0 . 01 4 . 10I 0 .003 1 I 141.8 ( 67 .3)
DMG 133 .75001118 .0830103/13/19331 432 0 . 01 0.01 4.701 0.006 I II 141. 8 ( 67.3)
DMG I33 .7500I118 .0830I04/02/1933I1536 0.01 0. 01 4. 00I 0 .003 1 I 141. 8 ( 67.3)
DMG I33 .7500I118 .0830103/16/1933I1529 0. 01 0.01 4.20I 0.004 I I 141.8 ( 67.3)
DMG 133 .75001118.0830103/11/193311944 0.01 0. 01 4.00I 0 .003 I I 141.8( 67.3)
DMG I33 .7500I118 .0830I03/11/193311653 0 .01 0. 01 4 . 80I 0 .007 1 II 141.8 ( 67 .3)
DMG I33 .75001118 . 0830I03/12/1933I2128 0.01 0. 01 4 . 10I 0 .003 1 I 141.8 ( 67.3)
-------------------------
EARTHQUAKE SEARCH RESULTS
-------------------------
Page 6
-
-------------------------------------
TIME 1 I I SITE ISITEI APPROX.
FILET LAT. I LONG. I DATE 1 (UTC) IDEPTHIQUAKEI ACC. I MM I DISTANCE
( CODEI NORTH I WEST I I H M Secl (km) 1 MAG. 1 g IINT. 1 mi [km]
----+-------+--------+----------+--------+-----+-----+-------+----+-----
DMG 133.7500I11B .0830103/12/193311825 0 . 01 0.01 4.101 0.003 I I 1 41.8 ( 67.3)
DMG 133 .75001118 .0830103/11/193311956 0 . 01 0. 01 4.201 0.004 1 I 1 41.8 ( 67.3)
( DMG 133 .75001118 .0830103/11/1933111 0 0 . 01 0.01 4.001 0.003 1 I 1 41.8 ( 67.3)
DMG 133 .75001118 -0830103/11/19331 252 0 .01 0.01 4.001 0.003 I I 1 41.8 ( 67.3)
DMG 133.75001118 .0830103/13/19331 343 0.01 0.01' 4.101 0.003 1 I 1 41. 8 ( 67.3)
I DMG 133.75001118.0830103/13/19331 617 0.01 0.01 4.001 0.003 1 I 1 41.8 ( 67.3)
DMG 133.75001118 -0830103/11/19331 259 0.01 0.01 4.601 0.006 1 II 1 41.8 ( 67.3)
DMG 133 .75001118 -0830103/11/19331 258 0.01 0.01 4.001 0. 003 1 I 1 41.8 ( 67.3)
DMG 133.75001118.0830103/11/193311547 0.01 0.01 4.001 0.003 1 I 1 41.8 ( 67.3)
( DMG 133.75001118 .0830103/11/19331 440 0 .01 0 .01 4.701 0.006 I II 1 41.8 ( 67.3)
If DMG 133 .75001118 .0830103/11/193311025 0.01 0 .01 4.001 0.003 1 I 1 41.8 ( 67.3)
DMG 133 .75001118.0830103/11/19331 222 0.01 0.01 4 .001 0.003 1 I 1 41.8 ( 67.3)
DMG 133 .75001118.0830103/16/193311530 0.01 0.01 4 .101 0.003 1 I 1 41.8 ( 67.3)
I DMG 133 .75001118.0830103/16/193311456 0.01 0.01 4.001 0.003 1 1 1 41.8 ( 67.3)
DMG 133 .75001118.0830103/11/19331 439 0.01 0.01 4.901 0.007 1 II 1 41.8 ( 67.3)
DMG 133.75001118.0830103/11/19331 926 0.01 0 .01 4 .101 0.003 1 I 1 41.8 ( 67.3)
( DMG 133 .75001118.0830103/11/193311129 0.01 0.01 4.001 0.003 1 I 1 41. 8 ( 67.3)
DMG, 133.99401116.7120106/12/19441111636.01 10 .01 5 .301 0.011 1 I111 41.8( 67.3)
DMG 133 .98101116.7020106/12/19441222119.51 10.01 4 .201 0.004 1 I 1 41.9( 67.5)
MGI 134.00001118.0000105/05/19291 735 0.01 0 .01 4 . 001 0.003 1 I 1 42.0( 67.6)
MGI 134. 00001118.0000105/05/19291 1 7 0.01 0.01 4 .601 0.006 1 II 1 42.0 ( 67.6)
lJ MGI 134.00001118.0000112/25/190311745 0.01 0.01 5 .001 0.008 ( II11 42 .0( 67.6)
GSP 134.16301116. 8550106/28/19921144321.01 6.01 5.301 0.010 1 II11 42.5( 68.4)
DMG 134.00001116.7000108/25/19441 73025.01 0 .01 4.201 0.004 1 I 1 42.6( 68.6)
I� DMG 133 .45001116.6830104/25/19551 25515.01 0 .01 4 .001 0.003 1 I 1 42.7 ( 68.7)
` DMG 133 .73301118 .1000103/11/193311350 0.01 0 .01 4.401 0.004 1 I 1 42 .7( 68.7)
DMG, 133 .73301118. 1000103/11/1933115 9 0.01 0.01 4 .401 0.004 1 I 1 42 .7( 68.7)
DMG 133 .73301118. 1000103/11/193311447 0.01 0.01 4 .401 0.004 1 I 1 42 .7( 68.7)
MGI 134.20001116.9000110/10/19151 5 6 0.01 0.01 4.001 0.003 1 I 1 42 .8 ( 68.8)
DMG 134 .30401117.5700105/05/1969116 2 9.61 8 . 81 4 .401 0.004 1 I 1 42 .8 ( 68.9)
PAS 133 .42001116. 6980106/05/1978 '116 3 3 .91 11.91 4.401 0.004 1 I 1 42.8 ( 68.9)
f PAS 133 .97901116. 6810112/16/19881 553 5.01 8.11 4 .801 0.006 1 II 1 43.0 ( 69.1)
DMG 134.30001117.6000107/30/18941 512 0.01 0.01 6.001 0.019 1 IV 1 43 .1( 69.3)
DMG 133 .53301116.6330109/21/19421 7 754.01 0.01 4 .001 0 .003 1 I 1 43 .4 ( 69.8)
PAS 133 .50801118 . 0710111/20/19881 53928.71 6. 01 4.501 0 .005 I II 1 43 .4( 69.8)
DMG 133 . 96701118 -0500101/30/19411 13446.91 0. 01 4 .101 0.003 1 I 1 43.5( 70.1)
GSP 134 . 16301116. 8270106/28/19921150451.51 12 . 01 4 .401 0.004 1 I 1 43 .6( 70.1)
PAS 133 .47101118 . 0610102/27/19841101815. 01 6. 01 4 . 001 0.003 1 I 1 43 .7( 70.4)
DMG 133 . 76701118 . 1170111/04/193912141 0.01 0.01 4 . 001 0.003 1 I 1 43.8 ( 70.5)
GSP 134 . 19501116. 8620108/17/19921204152 . 11 11. 01 5 .301 0.010 1 II11 43 .9 ( 70. 6)
DMG 133 - 80001116. 6000109/10/19311 436 0.01 0.01 4 .001 0.003 1 I 1 43 .9( 70.6)
DMG 133 .95901116.6510109/23/19491214440.11 12 .21 4 .001 0.003 1 I 1 44. 0 ( 70.8)
DMG 133 .50801116. 6310108/11/19671 05711.41 10.71 4 .101 0.003 1 I 1 44. 0 ( 70. 8)
GSP 134 . 19801116. 8620108/18/19921094640.71 12 . 01 4 .201 0.003 1 I 1 44 . 0 ( 70.9)
DMG 133 . 61701118. 1170101/20/193412117 0.01 0. 01 4 .501 0 .005 1 II 1 44.2 ( 71. 1)
DMG 134.26701116. 9670108/29/19431 51630.01 0. 01 4 . 001 0.003 1 I 1 44.5 ( 71. 6)
DMG, 134 . 26701116.9670108/29/19431 34513 .01 0 . 01 5 .501 0.011 1 LI11 44.5 ( 71.6)
DMG 134.26701116. 9670108/29/19431 35754 .01 0. 01 4.001 0.003 1 I 1 44.5 ( 71.6)
DMG 133 . 90001118. 1000107/08/192911646 6.71 13 . 01 4.701 0.005 1 II 1 44 .6 ( 71.B)
DMG 133 .75001118 . 1330103/11/1933111 4 0 .01 0 . 01 4.601 0.005 1 II 1 44 .7 ( 71.9)
DMG 134 . 11701116.7500108/22/19421125913 .01 0. 01 4.001- 0.003 1 I 1 44.7 ( 71.9)
DMG 133 . 51701118 .1000103/22/19411 82240 .01 0 . 01 4. 001 0.003 1 I 1 44 .8 ( 72.0)
DMG 133 .78301118 .1330101/13/19401 749 7.01 0. 01 4 .001 0.003 1 I 1 44 .9( 72.2)
-------------------------
EARTHQUAKE SEARCH RESULTS
-------------------------
Page 7
------------- ------------
I I I I TIME I I I SITE ISITEI APPROX.
FILE LAT. I LONG. I DATE I (UTC) IDEPTHIQUAKEI ACC. I MM I DISTANCE
CODEI NORTH I WEST I I H M Secl (km) I MAG 1 g 11NT. 1 mi [km]
----+-------+--------+----------+--------
DMG 133 .78301118 . 1330110/02/19331 91017.6I 0.01 5.401 0 .010 I IIII 44.9 ( 72.2)
DMG 133 .78301118 . 1330111/20/193311032 0.01 0.01 4. 001 0. 003 I I 1 44.9 ( 72.2)
DMG I33 .46701116. 6330102/20/193411035 0 .01 0.01 4. 00I 0 .003 I I 1 44.9( 72 .2)
PAS I33 .98901116. 6490I07/17/19861203515.OI 6.21 4. 00I 0 .003 I I 1 44.9 ( 72.3)
PAS 133 .99101116. 6490107/17/19861215445 .21 7.41 4.401 0 .004 I I 1 45.0 ( 72.4)
I PAS 134.24301116. 8960106/30/19791 03411.61 5.81 4.901 0.006 I II 145.3 ( 72.9)
I PAS 134.24601116. 9010106/29/19791 55320 .51 5.71 4.601 0 .005 I II 1 45.3 ( 72.9)
l PAS 134 .24901116. 9000106/30/19791 7 353 .OI 5.61 4.50I 0.004 I I 45.5 ( 73.2)
GSP 134 .25601116. 9120106/28/19921170557.51 8.01 4 .601 0.005 I II 1 45.5 ( 73.2)
,I GSP I34.18301116. 8020106/28/19921192637.61 1.01 4. 001 0.003 I I 1 45.6( 73.3)
GSN I34 .20301116. 8270106/28/19921150530.7I 5.01 6.701 0 .032 I V 45.6( 73.4)
MGI I34 .1000I118. 0000I01/27/1930I2026 0.01 0.01 4.601 0. 005 I II 1 45.7( 73 .5)
PAS 134 .03101116. 6570107/08/19861 92412 .81 6.01 4.401 0.004 1 I 1 45.8 ( 73.8)
( DMG 134 .20001117. 9000107/13/19351105416.51 0.01 4.701 0.005 I II 46.0( 74.0)
DMG 134 .20001117. 9000108/28/18891 215 0.01 0.01 5.501 0.011 I II11 46.0 ( 74.0)
GSP 134 .13001116.7340106/30/19921212254 .41 12. 01 4.801 0.006 I II 1 46.0 ( 74.0)
PAS I33 .96701116.6170107/08/1986I102240.61 6.01 4.401 0. 004 1 I 1 46.O ( 74.0)
PAS 133 .96701116. 6170107/OS/19861155526.21 6.01 4.001 0. 003 1 I 1 46.0 ( 74.0)
GSP 134 .22501116.8440107/09/19921023435.01 0.01 4.101 0. 003 I I 1 46.1( 74.2)
DMG 134 .10001116.7000102/07/18891 520 0 .01 0.01 5.301 0 .009 I II11 46.3 ( 74.5)
GSP 134 .23201116. 8460107/10/19921012940 .OI 0.01 4.201 0 . 003 I I 146.4 ( 74.7)
1 DMG 133 .50601116.5850I05/21/1967I144234 .41 19.41 4.701 0.005 1 III 46.5 ( 74.9)
DMG 133 .75001118 . 1670105/16/19331205855.01 0.01 4.001 0. 003 I - 146.6( 75.0)
PAS 134 .07701118.0470102/ll/l988I152555.7I 12 .51 4.701 0.005 1 II 147.0 ( 75.6)
DMG I33 .89801116.5690111/17/19641145228 .21 10.31 4.001 0.003 ( - 1 47.0( 75.7)
GSP I34 .23901116. 8370107/09/19921014357.61 0.01 5.30I 0. 009 1 III1 47.1( 75.8)
DMG 133 .53401116.5610109/23/19561112441.91 12.21 4.301 0.003 I I 147.3 ( 76.1)
jPAS I33 .99801116.6060107/08/19861 92044 .51 11.71 5.601 0 .011 1 II11 47.4 ( 76.3)
DMG 133 .95001118. 1330110/25/19331 7 046.01 0. 01 4.301 0.003 i I 147.5 ( 76.5)
DMG 133 .75001118.1830108/04/19331 41748.01 0.01 4 .001 0 .003 - 147.5 ( 76.5)
DMG 133 .46701116.5830103/27/19371 742 0.01 0.01 4.501 0 .004 I I 1 47.5( 76.5)
DMG 133 .46701116.5830103/27/19371 528 0.01 0.01 4 . 001 0. 003 1 - 1 47.5 ( 76.5)
DMG I33 .46701116.5830103/26/193712124 0.01 0.01 4. 001 0 . 003 1 - 1 47.5( 76.5)
DMG 133 .46701116.5830101/04/19381 029 0.01 0.01 4.501 0. 004 I I 147.5( 76.5)
DMG 134.33301117.0000102/27/19421 1 853 .01 0.01 4.001 0 .002 1 - 1 47. 6( 76.6)
PAS 133 .52001116.5580108/02/19751 014 7 .71 13 .41 4.701 0 .005 1 II 147.7 ( 76.8)
GSP 134.23701116.8110106/28/19921125730.81 10.01 4 . 001 0 . 002 I - 148.0( 77 .2)
PAS 134.06101118.0790I10/01/19871144220.01 9.51 5 . 901 0 . 014 I IV 148.0( 77.2)
PAS 134 .05001118.0870I10/01/1987I155953 .5I 10.41 4. 001 0. 002 I - 1 48 .0 ( 77.3)
PAS 133 . 95301116.5720110/15/19861 22847.81 8 .71 4 .701 0 . 005 I II 1 48. 0 ( 77 .3)
DMG 134.22901116.7950105/11/1956I163050.5I 13 .31 4 . 701 0 .005 1 III 48.2 ( 77.5)
PAS 134. 05201118 .0900I10/01/1987I151231.81 10. 81 4. 701 0 .005 I II 148.2 ( 77.6)
MGI 134.30001116.9000112/01/1915114 5 0.01 0.01 4 .001 0 . 002 1 - 148.4 ( 77.9)
GSP 134 .20701116.7570 �06/28/19921161719.21 3 . 01 4 .201 0 .003 1 I 1 48 .6( 78 .1)
DMG 134.37001117 .6500112/08/1812115 0 0.01 0.01 7. 001 0 . 037 1 V 148 .6( 78 .2)
GSP I34.21901116.7710107/21/1992I211029.01 1.01 4. 10I 0. 003 I I 1 48.6( 78.2)
GSP 134.21101116.7600106/28/1992I152429.31 6.01 4 .501 0 .004 1 I 148.6( 78.3)
PAS 134. 04901118 . 1010110/01/1987I144541.51 13 .61 4.701 0 .005 1 II 148.7 ( 78.3)
DMG 133 .7830I118 .2000112/27/1939I192849.OI 0 .01 4 .701 0 .005 1 II 1 48.7 ( 78.3)
DMG 133 .63301118.2000111/01/1940120 046.01 0. 01 4. 001 0 .002 I - 1 48.7 ( 78.4)
DMG I33 .63001118.2000109/13/1929I132338.2I 0. 01 4. 001. 0 . 002 1 - 148 .8 ( 78 .5)
GSP I34.37401117 .6490I08/20/19981234958.41 9. 01 4.401 0 . 003 1 I 1 48 .8 ( 78 ,6)
DMG I34 .3200I116.9250104/18/19681174213 .41 4 .71 4 . 001 0 . 002 1 - 1 48.8 ( 78. 6)
-------------------------
EARTHQUAKE SEARCHRESULTS
- -
Page 8
- -
-------------- ---- --------
-------------- -------
--
TIME I 1 I SITE ISITEI --APPROX.
FILEI LAT. I LONG. I DATE 1 (UTC) IDEPTHIQUAKEI ACC. I MM I DISTANCE
CODEI NORTH [ WEST I H M Secl (km) I MAG 1 g 11NT. I mi [km]
+-------+--------+----------+--------
PAS 134 .06001118 . 1000I10/01/198711449 5.91 11.71 4.70I 0.005 I II 1 49.0( 78 .8)
PAS 133 .98701116.5690107/09/19861 01232 .11 6.01 4 .401 0.003 I I 1 49.0( 78 .9)
[ PAS 134 .07601118. 0900110/01/198711448 3 . 11 11.71 4 . 10I 0.003 I - 1 49.1( 78.9)
DMG 133 .0000I117 .3000I11/22/180012130 0.01 0.01 6 .50I 0.024 I IV 1 49.1( 79. 0)
GSP 134 . 1110I116. 6460106/28/19921140928. 8I 7.OI 4 . 101 0.003 I - 1 49.2 ( 79.3)
PAS 134 .07301118. 0980110/04/19871105938 .2I 8.21 5 .301 0.008 1 II 1 49.3 ( 79.4)
DMG 133 .8670I118.2000111/13/193312128 0.01 0.01 4.001 0.002 1 - 1 49.6( 79.8)
DMG 133 .41701116.5670112/22/19501 2 536.01 0.01 4.001 0.002 I - 149.7( BO.0)
DMG 134 .31201116. 8790101/31/19721 155 4.21 8.01 4 .001 0.002 I - 1 49.8( 80.1)
DMG 133 . 81701118 .2170110/22/19411 65718.51 0.01 4 .90I 0.005 I II 1 49.9( 80.4)
MGI 134 .20001118. 0000J01/09/19211 530 0.01 0.01 4 .601 0.004 I I 1 50.0( 80.5)
MGI 133 . 90001118 .2000110/08/192711914 0.01 0.01 4 .60I 0.004 I I 1 50.1( 80.7)
DMG 134 .25001116. 7700I03/16/19561203344.31 0.81 4 .001 0.002 I - 150.2 ( 80.8)
[ DMG 133 .40001116.5670102/04/19531 43616.01 0. 01 4 .301 0.003 1 1150.2 ( 80.8)
DMG 134 .32401116.8850112/01/19621 03548.81 9.61 4.301 0.003 I I 1 50.3 ( 80.9)
PAS 133 .53801118 .2070105/25/19821134430.31 13.71 4 .101 0.002 1 - 1 50.3 ( 81.0)
[ DMG I34 .33701116. 9090111/30/196212351 5.51 7.01 4.301 0.003 I I 150.3 ( 81.0)
MGI 134 .10001118. 1000107/11/18551 415 0.01 0.01 6.301 0.019 I IV 1 50.4 ( 81.1)
DMG 133 .86701118 .2170106/19/19441 0 333 . 01 0.01 4 .501 0.004 1 I 1 50.5 ( 81.3)
DMG 133 .86701118.2170106/19/19441 3 6 7.01 0.01 4 .401 0.003 I I 150.5 ( 81.3)
PAS 133 .50101116.5130 02/25/19801104738.51 13 .61 5 .501 0.009 11121 50.6( 81.4)
DMG 134 .32501116. 8750112/02/19621 04138.41 6.71 4 .401 0.003 1 I 1 50.6( 81.5)
GSP I34.3400I116. 9000111/27/19921160057.5I 1.01 5.301 0.007 I II 150. 8 ( 81.7)
DMG 133 .20001116. 7200105/12/19301172548.5I 0.01 4 .201 0.003 ( I 1 50.8 ( 81. 8)
DMG I34 .33301116. 8830110/14/19431142844 .01 0.01 4.501 0.004 I I 1 50.9( 81.8)
DMG 134 .30701116. 8350108/28/19501194526.4I 11.71 4 .201 0.003 I I 150.9 ( 81.9)
DMG 134 .32501116. 8650110/29/19621 24253 .91 8.61 4 .801 0.005 1 II 151.0 ( 82 .0)
PAS 133 .48401116.5130108/11/19761152455 .5I 15.41 4 .301 0.003 I I 1 51.0 ( 82 .0)
DMG 134 .06501116.5740108/26/19591 53250.21 16.71 4.301 0.003 1 I 151.l( 82 .3)
GSP I34 .32001116. 8500110/27/19981154017 .11 4.01 4. 101 0.002 I - 1 51.1( 82 .3)
DMG 133 .93901118.2050I01/11/19501214135.01 0.41 4 .101 0.002 I - 151.2 ( 82 .3)
GSP 134 .2730I116. 7740108/24/19921135146.OI 1.01 4. 301 0 .003 I I 1 51.2 ( 82 .4)
DMG 133 .50001116.5000109/30/19161 211 0 .01 0.01 5 . 001 0.006 I II 1 51.3 ( 82 .6)
GSP 134 .32201116. 8460109/20/19991070249.21 2 .01 4.201 0.003 1 - 151.4 ( 82 .7)
[ GSP I34 .36201116. 9230112/07/19921033331.51 1.OI 4 . 001 0.002 I - 1 51.4 ( 82 .7)
DMG I33 .36701118. 1500I04/16/19421 72833 .01 0.01 4 .001 0 .002 1 - 151.4 ( 82 .8)
GSP 134.29801116. 8040107/05/19921200303 .11 3 . O1 4 .001 0.002 I - 1 51.5( 82 . 8)
DMG I34 .2640I116.7550103/16/19561203613 .6I 3 .31 4 .001 0 .002 1 - 151.5( 82 . 8)
GSP I34 .3230I116. 8440110/27/19981010840 .7I 5.01 4 .90I 0.005 I II 151.5 ( 82 .9)
DMG 133 .78301118 .2500111/14/19411 84136.31 0.01 5 .40I 0 .008 I IIII 51.5 ( 82. 9)
DMG 133 .75901118.2530108/31/19381 31814 .21 10.01 4 .501 0.003 1 I 151.6( 83 . 0)
GSP I34 .3610I116. 9130112/04/19921125942 . 11 0. 01 4 .201 0 .003 1 - 1 51.6( 83 . 1)
DMG 133 .20001116.7000101/01/19201 235 0 .01 0.01 5 . 001 0.005 I II 1 51.7 ( 83 . 1)
DMG I33 .48301116.5000102/15/19511104759. 0I 0. 01 4 .80I 0.005 1 I 1 51..7 ( 83 . 2)
DMG I33 .48301116.5000IO2/15/19511104957 . OI 0. 01 4 .801 0.005 1 I 1 51.7 ( 83 .2)
GSP I34 . 0200I118. 1800I06/12/19891172225 .51 16. 01 4 . 101 0 .002 1 - 1 51.8 ( 83 .4)
GSP 134 .25001117. 9900106/28/19911170055 .51 9. OI 4.301 0 .003 I I 1 52 .0 ( 83 .7)
GSP 134 .36401116.9040111/27/19921183225.01 1. OI 4 .101 0.002 1 - 152 . 1 ( 83 . 8)
GSP I34 . 03001118 .1800106/12/1989j165718.4I 16. 01 4 .401 0 .003 1 I 152. 1( 83 . 9)
GSP I34 .25001116.7190IO6/29/1992I164141. 91 1. OI 4 .901 0.005 I II 1 5-2 .2 ( 84.0)
DMG I34 .2990I116.7840103/18/19561 24217 .31 6.31 4 .401 0.003 I 1 1 52 .2 ( 84 . 1)
DMG I33 .5000I116.4830102/23/19411183614 .01 0.01 4 .501 0 .003 I I 152 .3 ( 84 . 1)
DMG 134 .35001116.8670I10/15/194311650 1.OI 0.01 4. SO1 0 .003 1 I 52 .3 ( 84.2)
1
-------------------------
1 EARTHQUAKE-SEARCH-RESULTS
Page 9
--------------- ----------------------------------------------------------------
I TIME I I I SITE ISITEI APPROX.
FILET LAT. I LONG. DATE (UTC) IDEPTHIQUAKEI ACC. I MM I DISTANCE
CODEI NORTH I WEST I I H M Secl (km) I MAG 1 g IINT. 1 mi [km]
----+-------+--------+----------+--------+-----+-----+-------+----+------------
�, MGI 134.00001118.2000106/26/191712120 0.01 0.01 4 .601 0.004 I I 1 52.3 ( 84.2)
MGI 134.00001118.2000102/13/1917113 5 0.01 0.01 4 .60 0.004 1 I 1 52.3 ( 84.2)
MGI 134.00001118.2000106/26/191712130 0.01 0.01 4.601 0.004 1 I ( 52.3 ( 84 .2)
MGI 134.00001118.2000106/26/19171 424 0.01 0.01 4.001 0.002 1 - 152.3 ( 84.2)
[ MGI 134.00001118.2000106/26/191712115 0.01 0 .01 4 .601 0.004 1 I 1 52.3 ( 84 .2)
PAS 134.32201116.8150108/29/19851 759 8.71 6.11 4 .101 0.002 1 - 1 52.4 ( 84 .4)
GSP 134.37701116.9180112/04/19921052511.21 2 .01 4 .801 0.004 1 I 1 52.5 ( 84.4)
GSP 134.36901116.8970112/04/19921020857.51 3 .01 5.301 0.007 1 II 1 52.6( 84.6)
DMG 134.31701116.8000108/12/19501 21717.01 0.01 4.301 0.003 1 I 1 52.7 ( 84.7)
MGI 133.10001116.8000106/22/19181 557 0.01 0.01 4 .001 0.002 1 - 1 52.9( 85.2)
I GSP 134.27501116.7300107/01/19921204617.81 1.01 4 .201 0.002 1 - 1 53.0 ( 85.3)
GSP 134.26201118.0020106/28/19911144354.51 11.01 5.401 0.008 1 II 1 53.1( 85.4)
GSP 134 .37001116.8800111/29/19921142120.51 3 .01 4.001 0.002 1 - 1 53.1( 85.5)
�I DMG 133.85001118.2670103/11/19331 629 0.01 0.01 4 .401 0.003 ( I 1 53.1( 85.5)
DMG 133.85001118.2670103/11/193311425 0.01 0.01 5 .001 0.005 1 II 1 53.1( 85.5)
DMG 133.00001117.0000103/03/190612025 0.01 0.01 4 .501 0.003 1 I 1 53.1( 85.5)
MGI 133.00001117.0000112/29/1914110 0 0.01 0.01 4 . 001 0.002 1 - 1 53.1( 85.5)
MGI 133.00001117.0000109/21/18561 730 0.01 0.01 5 .001 0.005 1 II 1 53.1( 85.5)
GSP 134.28101116.7310107/01/19921205356.81 1.01 4 .001 0.002 1 - 1 53.3 ( 85.7)
DMG 133.50001118.2500106/18/1920110 8 0.01 0.01 4 .501 0.003 1 I 1 53.4 ( 85.9)
I DMG 134.01701116.5000107/26/19471231351.01 0.01 4 .101 0.002 1 - 1 53.5 ( 86.1)
DMG 134.01701116.5000108/08/19471 64745.01 0.01 4 . 001 0.002 1 - 1 53.5 ( 86.1)
DMG 134.01701116.5000107/24/19471225341.01 0.01 4 .301 0.003 1 I 1 53.5 ( 86.1)
DMG 134.01701116.5000107/26/19471 12415.01 0.01 4 .201 0.002 1 - 1 53.5 ( 86.1)
DMG 134.01701116.5000107/25/19471 61949.01 0.01 5.201 0.006 1 II 1 53.5 ( 86.1)
DMG 134.01701116.5000107/25/19471 15647.01 0.01 4 .601 0.004 1 I 1 53 .5 ( B6.1)
DMG 134.01701116.5000107/29/19471163615.01 0.01 4 .201 0.002 1 - 1 53 .5 ( 86.1)
DMG 134.01701116.5000107/24/19471221046.01 0.01 5.501 0.008 1 II11 53.5 ( 86.1)
DMG 134.01701116.5000107/25/19471 75730.01 0.01 4 .201 0.002 1 - 1 53.5 ( 86.1)
DMG 134.O17O1116.50OO108/01/1947117 137.01 0.01 4 .101 0.002 1 - 1 53.5 ( 86.1)
DMG 134.O17O1116. 50OO1O7/26/1947123 425.01 0.01 4 .501 0.003 1 I 1 53 .5 ( 86.1)
DMG 134.01701116.5000107/25/19471 04631.01 0.01 5 .001 0.005 1 II 1 53.5 ( 86.1)
DMG 134.01701116.5000107/25/19471161453.01 0 .01 4 .501 0.003 1 I 1 53 .5 ( 86.1)
DMG 134.01701116.5000107/24/19471225426.01 0.01 4 .901 0.005 1 II 1 53.5 ( 86.1)
DMG 134.01701116.5000107/30/19471 52217.01 0 .01 4 .201 0.002 1 - 1 53 .5 ( 86.1)
i DMG 134 .01701116.5000107/25/19471 51752.01 0.01 4 .301 0 .003 1 I ( 53 .5 ( 86.1)
DMG 134.01701116.5000107/26/19471 24941.01 0.01 5.101 0.006 1 II 1 53 .5 ( 86.1)
DMG 134.30601116.7590103/16/19561202933.61 1.31 4 .801 0.004 i I 1 53 .5 ( 86.1)
DMG 133 .42001116.4900103/29/1937117 316.81 10.01 4.001 0 .002 I - 1 53.7 ( 86.4)
DMG 133.40001116.5000110/11/19181 4 0 0.01 0 .01 4. 001 0.002 1 - 1 53 .7 ( 86.5)
DMG 134.400O1116. 917O102/01/1942116 334.01 0.01 4 .501 0 .003 I 1 53 .9( 86.7)
DMG 134.40001116. 9170101/25/19421215133.01 0 .01 4 . 001 0.002 - 1 53 . 9 ( 86.7)
DMG 134 .40001116.91701O2/01/19421151555.01 0.01 4.001 0 .002 1 - 1 53 .9( 86 .7)
DMG 134 .40001116.917O1O2/01/19421151828.01 0 .01 4.501 0.003 1 I 1 53 .9 ( 86.7)
GSP 133 .51001116.4500102/18/19901155259.91 9.01 4 . 101 0 .002 ( - 1 53 .9 ( 86.8)
PAS 134.14901118. 1350112/03/19881113826.41 13 .31 4 .901 0 .005 1 II 1 53 .9 ( 86.8)
DMG 134.40001117.8000102/24/19461 6 752.01 0.01 4 .101 0 .002 1 - 1 54 .0 ( 86.9)
DMG 133.88001116.4370104/17/195911619 0.21 22.21 4.201 0 .002 1 - 1 54 .1 ( 87.0)
DMG 134.43301116.9830104/18/19451 458 2.01 0.01 4 .301 0 .003 1 - 1 54 .3 ( 87.4)
GSP 134.27401116.6920107/01/19921170715.11 4 .0 4 .201 0.002 1 - 1 54 .5 ( 87.6)
MGI 133. 80001118. 3000112/31/192811045 0.01 0.0' 4.001 0 .002 1 - 1 54 .5 ( 87.7)
DMG 133 .80001118.3000111/03/1931116 5 0.01 0.01 4.001 0 .002 1 - 1 54 .5 ( 87.7)
GSP 133.07001116.8000112/04/19911071057.51 15.01 4.201 0.002 1 - 1 54 .6 ( 87.8)
-------------------------
EARTHQUAKE SEARCH RESULTS
-------------------------
Page 10
TIME I I I -SITE ISITEI APPROX
FILEI LAT. I LONG. I DATE (UTC) IDEPTHIQUAKEI ACC. I MM I DISTANCE
CODEI NORTH I WEST I I H M Secl (km) I MAG. 1 g IINT. 1 mi [km]
-- ---------------------------------------------
USG 133 . 01701117 .8170107/14/1986I 11112 .61 10.01 4 .121 0.002 I - 1 54�17 ( 88.0)
USG 133 . 01701117 .8170107/16/1986I1247 3 . 71 10. 01 4 .111 0.002 1 - 1 54.7 ( 88.0)
DMG 134. 00001116.4670112/05/19481 05057.01 0 .01 4 .401 0.003 1 I 1 54. 8 ( 88.2)
DMG 134. 00001116.4670112/06/19481 246 8.01 0.01 4 .301 0.003 1 - 1 54.8 ( 88.2)
DMG 133 . 96701116.4500112/11/19481161220. 01 0. 01 4 .501 0.003 I I 154.9 ( 88.4)
l T-A 134. 00001118 .2500105/04/18571 6 0 0.01 0.01 4 .301 0.003 I - 1 55. 0 ( 88.5)
T-A 134. 00001118 .2500103/21/188011425 0. 01 0.01 4 .301 0.003 1 - 155.0 ( 88.5)
T-A 134. 00001118 .2500109/23/18271 0 0 0. 01 0.01 5 .001 0.005 I III 55.0 ( 88.5)
T-A 134. 00001118.2500101/17/18571 1 0 0. 01 0.01 4 .301 0.003 ( - 1 55.0 ( 88.5)
T-A 134. 00001118-2500101/10/18561 0 0 0 .01 0.01 5 .001 0.005 1 II 1 55.0 ( 88.5)
T-A 134. 00001118 .2500103/26/18601 0 0 0. 01 0.01 5 .001 0.005 i II 1 55.0 ( 88.5)
T-A 134.00001118 .2500105/02/18561 810 0.01 0.01 4 .301 0.003 1 - 1 55.0 ( 88.5)
PAS 133 .48301116-4380107/02/19881 02658.21 12 .61 4 .001 0.002 I - 1 55.1( 88.7)
l DMG 133.50101116.4290102/23/19711 0 739.21 8.01 4 .201 0.002 1 - 155.3 ( 88.9)
MGI 134. 1000I118.2000105/02/191611432 0.01 0.01 4 .001 0.002 I - 1 55.3 ( 89.0)
MCI 134. 1000I118 .2000104/21/192111538 0.01 0.01 4 .001 0.002 1 - 1 55.3 ( 89.0)
MGI 134. 10001118 ,2000101/27/18601 830 0.01 0.01 4 .301 0.003 1 - 155.3 ( 89.0)
J DMG 133 .46701116.4330105/12/193911925 2 .21 0.01 4 .501 0.003 I I 1 55.7 ( 89.6)
DMG 134.33601116. 7420103/16/19561233456.41 1.71 4 .401 0.003 1 I 1 55.7 ( 89.7)
PAS 133 .45801116.4340102/12/19791 44842 .31 3 .91 4 .201 0.002 1 - 1 55.8 ( 89.9)
DMG 133.96701116.4330112/05/19481 04235.01 0.01 4 .601 0.003 1 I 1 55.9 ( 89.9)
MGI 133 .20001116.6000I10/12/192011748 0.01 0.0 'l 5 .301 0.006 1 II 1 56.0 ( 90.1)
DMG 133 .96301116.4250101/13/19501 5 719.41 5.91 4 .101 0.002 I - 1 56.2 ( 90.5)
DMG 133.88301118 .3170103/11/193311457 0.01 0.01 4 . 901 0.004 1 I 1 56.4 ( 90.7)
T-A 134. 17001118 . 1700103/07/188811554 0.01 0.01 4 .301 0.002 1 - 1 56.4 ( 90.8)
GSP 132 .98501117.8180106/21/19951211736.21 6.01 4 .301 0.002 1 - 1 56.7 ( 91.2)
DMG I34.41701116.8500102/11/19321231120.01 0.01 4 .001 0.002 1 - 1 56.8 ( 91.4)
DMG 133.93301116.4000112/10/19481204257.01 0.01 4 .401 0.003 I - 1 57.0 ( 91.7)
PAS 132 .94701117.7360101/15/1989I153955.21 6.01 4 .201 0.002 1 - 157.0 ( 91.8)
DMG 134.08301116.4670103/01/1942I104631.01 0.01 4 .001 . 0.002 1 - 1 57. 1 ( 91.9)
DMG 134.0830I116.4670101/26/1934I1844 0.01 0.01 4 .001 0.002 I - 1 57. 1( 91.9)
PAS 132. 97001117 . 8030107/14/19861 03246.21 10.01 4 .001 0.002 1 - ( 57.2 ( 92.0)
PAS 132. 99001117. 8490107/13/1986114 133 . 01 12 .01 4 .601 0.003 1 I 157.2 ( 92.1)
GSP 133.94501116.3990I07/05/1992I054938 .21 3 .01 4. 001 0.002 1 - 1 57.3 ( 92.2)
j DMG 133.4260J116.4210I03/25/1937I20 4 8 .31 10.01 4 . 001 0.002 1 - 1 57.3 ( 92.2)
DMG 133 . 9830I118.3000IO2/11/19401192410.01 0.01 4 . 001 0.002 I - 1 57.3 ( 92.2)
PAS I32. 98601117. 8440110/01/19861201218 .6I 6.01 4 . 001 0.002 ( - i 57.3 ( 92.3)
GSP 132. 97001117. 8100104/04/19901085439.31 6.01 4 .001 0.002 ( - 1 57.4 ( 92.3)
PAS I34.0220I116.4260108/14/19751 8 849.81 10.91 4 . 001 0.002 1 - 157.5 ( 92.6)
DMG 133.36801116.4440103/25/19371232026.71 10.01 4 .001 0.002 1 - 1 57.6 ( 92.6)
MCI 134.00001118 .3000106/30/19201 350 0 .01 0.01 4 .001 0.002 I - 157.7 ( 92.8)
MGI 134. 00001118 .3000106/22/192012035 0.01 0.01 4 . 001 0.002 1 - 1 57. 7 ( 92.8)
MCI 134. 00001118 .3000109/03/19051 540 0 .01 0 .01 5 .301 0.006 1 II 1 57.7 ( 92.8)
DMG I33 .54301118.3400109/14/19631 35116.21 2 .21 4 .201 0.002 1 - 1 57.7 ( 92.8)
PAS 133 . 03301117.9440102/22/19831 21830 .41 10.01 4 .301 0.002 i - 157.7 ( 92.9)
DMG 133.41701116.4170101/02/19431141118 . 01 0.01 4 . 501 0.003 1 I 1 57.7 ( 92 .9)
MCI 134. 08001118.2600107/16/1920118 8 0. 01 0.01 5 . 001 0.004 1 I 1 57.7 ( 92 .9)
DMG 134. 05001116.4330102/08/19381 739 0..01 0.01 4 . 001 0.002 1 - 1 57. 9 ( 93 .2)
DMG 133 . 93301116.3830112/04/19481234317 . 01 0.01 6.501 0.018 1 IV 1 57. 9 ( 93 .2)
PAS 133 . 98501116.4020102/15/19851232626 . 61 2 .31 4 .001 0.002 1 - 1 57. 9 ( 93 .2)
DMG 134.43601116. 8340107/14/19731 8 020. 11 8.01 4 . 801 0.004 1 I 1 58.4 ( 93.9)
GSP 133 . 94601116.3790104/24/19921123605. 71 10.01 4 . 101 0.002 1 - 1 58 .4 ( 94.0)
DMG 134. 06701116.4320112/04/19571 25144 . 01 3 .71 4 .301 0. 002 1 - 1 58.5 ( 94.1)
II
l
EARTHQUAKE-SEARCH-RESULTS
l
Page 11
----1 ------- I --------I ----------I --TIME ----------------------------------
---
FILE1 LAT. 1 LONG. ( DATE 1 (UTC) IDEPTHIQUAKEI ACC. ISMMEI DISTANCE
CODEI NORTH I WEST --------- I H M Secl (km) I MAG I g IINT. I mi [km]
----+-------+--------+- _ _
PAS 132 .94501117. 8060109/07/1984111 313 .41 6. 01 4.301 0. 002-+ -+-- .8 ( 9__--
DMG 133 . 93301116.3670112/05/19481 0 721.01 0.01 4.901 0.004 1 I 1 58.8 ( 94.7)
PAS 132 . 97101117. 8700107/13/198611347 8 .21 6.01 5.301 0.006 II 159.0( 94.9)
DMG 133 . 15001116.5830112/02/19351 319 O.OI O. OI 4. 00 0.002 -DMG I33 . 33301116.4330102/12/19541 94428.01 0.01 4.501 0.003 1 I 159.2 ( 95.2)
DMG 133 . 10001116. 6330102/08/19521174028.01 0. 01 4.001 0.002
PAS 133 .4600 1 116. 3700109/07/19841175730.31 15.21 4. 10 0.002 1 159.3 ( 95.4)
II DMG 134. 00001116.3830105/05/19441134715.01 0. 0 4.00 0.002 I 159'3 ( 95.4)
GSP 134. 15201116.4680106/28/19921224822.91 11.01 4.101 0.002 1 159.3 ( 95.4)
( GSP 134 . 08901116.4260106/28/19921143906.91 0.01 4.301 0.002 1 159.4 ( 95.5)
II PAS 132. 94501117. 8310107/29/19861 81741.81 10.01 4.10 0.002 I 159.4 ( 95.6)
f GSP 134 .09501116.4270106/28/19921211316.51 3 .01 4 .601 0.003 1 I 159.5 ( 95.8)
DMG 132 .85001117.4830102/23/19431 92112.01 0.011 4 .0011 0.00. 02
I - 159.8 ( 96.2)
I� 02
GSP 134 .09601116.4170107/18/19921000611.921 2 .01 4.001 1 0.002 1 _ 159-8 ( 96•2)
GSP 134 .09201116.4140I12/21/19921114402. 3 .01 4.001 0.002 160.1 ( 96.7)
I DMG 133 .63301118.4000110/17/19341 938 0.01 0.01
4.001
0.002 1 1 60.1 ( 96. 7)
1 GSP 134.03001116.3790106/28/19921160115.2) 1.O 4.101 0.002 1 160 2 ( 96 9)
GSP 133 .94001116.3410105/04/19921011602.61 6.01 4.00 0.002 1 1 60'2 ( 97.0)
MGI 134 . 10001118.3000107/16/192012127 0. 60.4 { 97,2)
01 01 0. 01 4.601 0.003 1 I 1
MGI 134.10001118.3000107/16/192012130 0.01 0. 4.601 0.003 1 I 1 60.4 ( 97.2)
1 MGI 134 . 10001118.3000I07/26/192011215 0.01 0.01 4.00 0.002
MGI 134 . 10001118.3000107/16/192012022 0.01 0. 01 4 .601 0.003 1 I 1 60.4 ( 97,2)
DMG 133 . 95801116.3460101/08/19521 63427.41 11.41 4 .40 0.002
PAS 81741.61 10. 01 4 .301 0.0021 160.4 ( 97.3)
DMG 132 -93301117-8410107/29/19861
34.01701116.3670106/06/19401235637.21 0. 0 4 .40 p 1 160.5 ( 97,3)
GSP 134 . 0040I116.3610I06/30/19921143811.61 0. 01 4 .801 0.003 1 I 160.6( 97,5)
MGI 133 . 1000I116.6000108/19/1917I 710 0. 60.6 ( 97.5)
01 0.01 4 .001 0.002
MGI 133 . 10001116.6000IO2/09/19201 220 0.01 0. 01 4 .001 0.002
MGI 133 . 10001116.6000IO2/16/191511330 0.01 0. 01 4 .001 0.002 1 1 60.6 ( 97.5)
MGT 133 .10001116. 6000I05/28/191711017 0.01 0. 01 4 .001 0.002 1 160.6 ( 97.5)
MGI 133 .10001116.6000105/11/191511145 0.01 0. 01 4.001 0.002 1 1 60.6( 97,5)
MGI 133 . 10001116. 6000108/10/192112151 O.OI 0. 01 4. 001 0 .002 1 1 60.6 ( 97,5)
MGI 133 . 10001116.6000103/04/191511250 0.01 0. 01 4 . 00 0,002 1 1 60.6 ( 97.5)
MGI 133 .10001116. 6000102/05/192211915 0.01 0. 0 4 . 001 0.002 1 160.6 ( 97,5)
MGI I33 .10001116. 6000108/10/1921119 6 0.01 0. 01 4 . 001 0.002 1 160.6( 97.5)
GSP 134 .08801116.4020108/15/19921082414 .71 0. 01 4 . 801 0.003 1 I 1 60.G( 97.6) '
GSP 134 . 11201116.4150107/28/19921182703 .91 0. 01 4 . 601 0.003 1 I 1 60. 7 ( 97,7)
DMG 134 .45001116.7830105/22/19421151829.01 0. 01 4 . 001 0.002
GSP 133 . 95101116.3380105/18/19921154418.01 7. 01 4 . 901 0 .004 1 I 1 60.7 ( 97.8)
GSP 134. 13901116.4310106/28/19921123640.61 10. 01 5. 101 0. 004 ( I 1 60.7 ( 97.8)
DMG 133 . 66301118.4130101/08/19671 738 5.31 17. 71 4. 001 0. 002
GSP 134 . 11101116.4100106/28/19921135045.71 0. 01 4 .901 0.004 1 I 1 60.9( 98.0)
DMG 133 . 78301118.4170110/12/19401 024 0.01 0. 01 4. 001 0.002
DMG 133 . 78301118 .4170111/01/19401 725 3 .01 0. 01 4. 001 0.002 1 1 61.1( -98.3)DMG 133 . 78301118 .4170111/02/19401 25826.01 0. 0 4. 00 0. 002 I - 1 61. 1( 98.3)
DMG 133 . 78301118.4170110/14/19401205111.01 0. 01 4. 001 0.002 1 1 61. 1 ( 98.3)
GSP 133 .94701116.3300109/09/19921125045.11 5 . 01 4 .30 0.002 1 1 61.1 ( 98.3)
1
GSP 134. 06901116.3820107/07/19921082103 .1 3 . 0 4.00 0.002 I 1 61.1 ( 98.4)
GSP 134 . 10801116.4040106/29/19921141338.81 9.01 5.401 0.006 1 II 1 GSP 134 . 10601116.4020106/29/19921140837.7 61.1( 98.4)
1 1101 41 0.004 61.2 ( 98,4)
1 I 1
DMG 133 .98501116.3400102/01/19571 75215 . .90 I I 1
GSP I34. 06101116.3740108/11/199 .41 11.01 4.601 0.003 61.3 ( 98,7)
21061117.31 0. 01 4 .301 0.002 1 - 1 61.3 ( 98,7)
i
I
EARTHQUAKE RECURRENCE CURVE
Nichols Road Project - Rock
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1
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Number of Earthquakes (N) Above Magnitude (M)
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i
-------------------------
EARTHQUAKE SEARCH RESULTS
-------------------------
! Page 12
I I 1 TIME I 1 SITE ISITEI APPROX
FILEI LAT. I LONG. DATE (UTC) IDEPTHIQUAKEI ACC. I MM I DISTANCE
CODEI NORTH I WEST I I H M Secl (km) I MAG 1 g I INT. I mi [km]
----+-------+--------+----------
GSG 133.94301116.3250104/23/19921052316.21 5.01 4 .001 0.002 1 - 161.3 ( 98.7)
GSP 134.03401116.3600105/14/19991105235.21 1.01 4.201 0.002 1 - 1 61.4 ( 98.7)
GSP I34.05701116.3710106/28/19921160953 .91 3 .01 4 .101 0.002 1 - 1 61.4 ( 98.8)
I GSP 133.39901116.3540107/26/19971031456.01 11.01 4 .801 0.003 1 I 1 61.5 ( 99.0)
GSP 134.08201116.3780107/06/19921194137.91 3 .01 4.401 0.002 1 - 1 61.7( 99.3)
GSP I34.06201116.3660105/14/19991075403 .21 1.01 4 .901 0.004 I I 1 61.8 ( 99.4)
1 DMG 133.78301116.2830103/04/1937116 4 0.01 0.01 4.001 0.002 1 - 1 61.8 ( 99.5)
GSP 133.94301116.3150105/06/19921023843 .31 7.01 4 .501 0.002 1 - 1 61.9( 99.6)
GSP 134.09701116.3820107/01/19921070149.21 0.01 4.301 0.002 1 - 1 61.9( 99.6)
DMG 133.16701116.5000106/23/19321 23037.11 0.01 4 .001 0.002 I - 1 62 .0 ( 99.7)
DMG 33.1670 116.5000 06/23/1932 22552 .7 0.0 4.00 0.002� 1 1 1 I I I I I - 162.0 ( 99.7)
GSP 134.10201116.3830108/04/19921190612 .31 0. 01 4 .001 0.002 1 - 1 62.0( 99.8)
GSP 133.95701116.3170104/23/19921022529.91 11.01 4.601 0.003 i I 1 62.0 ( 99.8)
{ GSP 133.9610l116.3180104/23/19921045023 . 01 12 .01 6.101 0.011 1 II11 62.0( 99.8)
GSP 134.12701116.3970106/30/19921000608 .51 2.01 4.301 0.002 1 - 1 62.1( 99.9)
GSP 134.06401116.3610109/15/19921084711.31 9. 01 5.201 0.005 1 II 1 62.1( 99.9)
GSP 133.95301116.3140111/27/19961014243 . 81 6.01 4 .101 0.002 1 - 1 62.1( 99.9)
{ DMG 134.40501116.6670107/02/19551162938.51 10. 01 4 .201 0.002 1 - 1 62.1(100.0)
1 -END OF SEARCH- 601 EARTHQUAKES FOUND WITHIN THE SPECIFIED SEARCH AREA.
TIME PERIOD OF SEARCH: 1800 TO 2000
LENGTH OF SEARCH TIME: 201 years
THE EARTHQUAKE CLOSEST TO THE SITE IS ABOUT 2.6 MILES (4 .1 km) AWAY.
LARGEST EARTHQUAKE MAGNITUDE FOUND IN THE SEARCH RADIUS: 7. 0
LARGEST EARTHQUAKE SITE ACCELERATION FROM THIS SEARCH: 0.379 g
COEFFICIENTS FOR GUTENBERG & RICHTER RECURRENCE RELATION:
a-value= 3 .707
b-value= 0.818
1 beta-value= 1.884
------------------------------------
i TABLE OF MAGNITUDES AND EXCEEDANCES:
------------------------------------
Earthquake 1 Number of Times 1 Cumulative
Magnitude 1 Exceeded 1 No. / Year
--- --------+-----------------+------------
4.0 1 601 1 2 . 99005
4.5 1 218 1 1. 08458
5 .0 1 76 1 0. 37811
5.5 1 25 1 0. 12438
6.0 1 16 1 0. 07960
6.5 1 7 1 0.03483
7.0 I 2 1 0. 00995
f
iti
I! CALIFORNIA FAULT MAP
I Nichols Road Project - Rock
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1000 -
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if
800
700
600
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400
300
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i
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INichols Road Project - Rock
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PROBABILITY OF EXCEEDANCE
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APPENDIX B
"Preliminary Slope Stability Evaluation" - Report prepared by Geotechnics
Incorporated, Dated December 22, 2005
i
1
55
G e o t e c h n i c s
Incorporated
San Diego
El Centro
Riverside
December 22, 2005
Pacific Aggregates Inc. Project No. 1089-003-00
14741 Lake Street Document No. 05-1266
Lake Elsinore, California 92530-1609
Attention: Mr. David Hollingsworth
SUBJECT: PRELIMINARY SLOPE STABILITY EVALUATION
Proposed Nichols Road Quarry
Lake Elsinore, California
Dear Mr. Hollingsworth:
In accordance with your request,we have completed a preliminary slope stability analysis of the final
slopes for the proposed Nichols Road Quarry in Lake Elsinore California. This letter summarizes the
results of our preliminary slope stability evaluation and presents our findings.
PROPOSED DEVELOPMENT
Plans provided to us indicate that final quarry slopes will be cut at 1.36:1 (Horizontal:Vertical) for
slope heights up to approximately 350 feet. Slopes will face south,southeast, and southwest,and an
access road will traverse the central and eastern portion of the quarry slopes.
There appears to be two geologic formations which may be exposed in the quarry excavation. These
include the Intermixed Estelle Mountain Volcanics which may be exposed in south and southwest
facing quarry slopes, and Tonalite which may be exposed in southwest and southeast facing quarry
slopes. A preliminary evaluation of the strength of these formations was estimated from our review
of a rock core completed for a previous geotechnical investigation on the east side ofthe quarry,and
from surface mapping of exposures in a road cut just west of the proposed quarry. Joint,fracture and
foliation orientations were obtained from a road cut just west of the proposed quarry, and from
published geologic maps.
1
9245 Activity Road,Ste. 103 • San Diego,California • 92126
Phone (858)536-1000 • Fax (858)536-8311
PACIFIC AGGREGATES PROJECT NO. 1089-003-00
DECEMBER 22,2005 DOCUMENT NO.05-1266
PAGE 2
SLOPE STABILITY EVALUATION
The stability of the proposed quarry slopes were evaluated for both rotational and translational
stability. The rotational stability of the quarry slopes utilizes the Hoek-Brown criterion(2002) and
assumes the rock mass possesses numerous intersecting joint sets such that the rock behaves as a
mass with no preferred joint orientations. The strength of the rock mass is estimated with several
parameters; Geologic Strength Index (GSI), Deformation Modulus (M), and the uniaxial
compressive strength of the intact rock. These parameters have been estimated based on our
observations. The stability of the rock slope was then evaluated with the software program Slope/W
(Geoslope,2004). The rotational"slope stability cross sections are presented in figures B-1 through
B-4 in Appendix B.
The translational stability of the quarry slopes assumes that the stability of the rock slopes is
controlled by the orientation and the shear strength of the major discontinuities within the rock mass.
This evaluation consisted of a kinematic screening to identify discontinuities which can form
potential daylighting wedge or planar failures in the quarry slope cuts. The kinematic screening was
performed by plotting the poles of the available discontinuity data onto a stereonet using the software
program DIPS (Rocscience Inc., 2002). The stereonet plots with the friction cone and slope face
orientation for the various quarry slope orientations are presented in figures B-5 through B-8 in
Appendix B.
The wedges and planes which were identified in the kinematic screening process as potentially
unstable were further evaluated to estimate the safety factor against sliding. The software program
RocPlane(Rocscience, 2001)was used to evaluate the safety factor. Selected data output from the
RocPlane software program is presented in Appendix B.
CONCLUSIONS
• Our preliminary evaluation of slope stability indicates the proposed quarry slopes are grossly
stable under static and seismic conditions. This evaluation is based on limited off-site
information and should be considered preliminary.
Geotechnics Incorporated
PACIFIC AGGREGATES PROJECT NO. 1089-003-00
DECEMBER 22,2005 DOCUMENT NO. 05-1266
PAGE 3
• We recommend that mapping and engineering analysis be performed once rock exposures in the
quarry become accessible. Geologic conditions which may reduce the stability of the slopes
include the presence of seepage, shear zones, unfavorable prominent joint orientations,weaker
geologic materials than anticipated, and intensely weathered surficial zones.
The conclusions and recommendations presented in this letter were developed using the degree of
care and skill ordinarily exercised, under similar circumstances, by reputable geotechnical
consultants practicing in this or similar localities.No warranty, express or implied,is made as to the
conclusions and professional opinions included in this report. The observations made are believed
representative of the project site. However, soil and geologic conditions can vary significantly. If
this occurs,the changed conditions must be evaluated by the geotechnical consultant and additional
recommendations made, if warranted.
We appreciate the opportunity to provide professional services. If you have any questions or
comments, please feel free to contact us.
GEOTECHNICS INCORPORATED
Maurice Amendolagine, P.E. 62962 W. Lee Vanderhurst, C.E.G. 1125
Project Engineer Principal
Attachments: Appendix A: References
Appendix B: Slope Stability Evaluation, RocPlane Output
��S\pNAL GF�Io
Distribution: (2) Addressee
w.l.E!
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POFESSI ,y � VANDERHURST �
4�� NMEND�7l No.1125 °
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ENGINEERING
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"CNo. G62962m rri GEOLOGIST
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Geotechnics Incorporated
APPENDIX A
REFERENCES
Barton,N, and Bandis, S.C., (1990), Review of Predictive Capabilities of JRC-JCS Model in
Engineering Practise. Proceedings of the International Symposium on Rock Joints, Leon,
Norway, pp 125-140.
California Geologic Survey, Preliminary Geologic Map of the Elsinore 7.5' Quadrangle,Riverside
County, California.
GEO-SLOPE International Ltd. (2004). SLOPE/W, Version 6, Slope Stability Software
Geotechnics Incorporated (2005), Preliminary Geotechnical Investigation, Proposed Outlet Mall
Expansion, Nichols Road Project, Lake Elsinore, California, Project No. 0860-002-00,
Document No. 05-0597, June 14, 2005.
Geotechnics Incorporated(2005), Proposal For Geotechnical Services,Preliminary Slope Stability
Evaluation, Proposed Nichols Road Quarry, Lake Elsinore, Proposal No. 04-134R,
Document No. 04-0533R, March 28, 2005.
Hoek, E. and Bray, J., (1981) Rock Slope Engineering, The Institution of Mining and Metallurgy,
London, England
Hoek, E. (2000) Course Notes Entitled Practical Rock Engineering, (2000 Edition).
RocScience, (1991-2002), Dips and RocPlane, Computer Programs for analysis of rock slope
stability.
1
Geotechnics incorporated
APPENDIX B
SLOPE STABILITY ANALYSIS
The stability of the proposed slopes was analyzed using computer programs Dips, and RocPlane
(RocScience, 1991-2002), and Slope/W (Geo-Slope, 2004). The various parameters used in the
analyses are presented below:
RocScience Parameters
MATERIAL Unit Basic Joint Joint Compressive
Weight Friction Angle Roughness Strength
(Pei) (Degrees) Coeff. (tsf)
(JRC)
Tonalite 165 30 5 1,500
Slope/W Parameters
MATERIAL Unit Weight Rock Geological Uniaxial Compressive
(pcf) Modulus Strength Strength
Index (tsf)
(GSI)
Tonalite 165 25 50 1,000
Voleanics 155 15 32 700
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RocPlane Analysis Information
Document Name:
05-1266 Tonalite 130 Seismic
Job Title:
RocPlane - Planar Wedge Stability Analysis
Analysis Results:
Analysis type = Deterministic
Normal Force = 718.258 t/ft
Resisting Force = 706.868 t/ft
Driving Force =494.213 t/ft
Factor of Safety = 1.43029
Geometry:
Slope Height = 170 ft
Wedge Weight =862.215 t/ft
Wedge Volume = 10451.1 f A3/ft
Rock Unit Weight= 0.0825 t/ft^2
Slope Angle = 37 °
Failure Plane Angle = 26 °
Upper Face Angle = 0 '
Bench Width : Not Present
Waviness =0 °
Intersection Point(B) of slope and upper face =(225.598 , 170 )
Intersection point(C) of failure plane and upper face= (348.552 , 170 )
Failure plane length ( Origin --> C ) = 387.799 ft
Slope length ( Origin --> B ) = 282.145 ft
Tension Crack : Not Present
Strength:
Shear Strength Model : Barton-Bandis
JRC = 5
JCS = 1500 t/ft^2
Residual Friction Angle (phir) = 30 °
Shear Strength: 706.868 t/ft^2
Seismic Force:
Direction : Horizontal
Seismic Coefficient : 0.15
Seismic Force : 129.332 t/ft
External Forces : Not Present
RocPlane Analysis Information
Document Name:
05-1266 Tonalite 198
Job Title:
RocPlane - Planar Wedge Stability Analysis
Analysis Results:
Analysis type = Deterministic
Normal Force = 3284.84 t/ft
Resisting Force = 3042.75 Uft
Driving Force = 1602.12 t/ft
Factor of Safety = 1.8992
Geometry:
Slope Height = 350 ft
Wedge Weight = 3654.72 t/ft
Wedge Volume =44299.6 ft^3/ft
Rock Unit Weight = 0.0825 t/ft^2
Slope Angle = 37 °
Failure Plane Angle =26 °
Upper Face Angle = 0 °
Bench Width : Not Present
Waviness = 0 °
Intersection Point (B)of slope and upper face = (464.466 , 350 )
Intersection point (C) of failure plane and upper face = (717.606 , 350 )
Failure plane length ( Origin --> C ) = 798.41 ft
Slope length ( Origin --> B ) = 580.888 ft
Tension Crack : Not Present
Strength:
Shear Strength Model : Barton-Bandis
JRC = 5
JCS = 1500 t/ft^2
Residual Friction Angle (phir) =30 °
Shear Strength: 3042.75 t/ft^2
External Forces : Not Present
RocPlane Analysis Information
Document Name:
05-1266 Tonalite 198 Seismic
Job Title:
RocPlane - Planar Wedge Stability Analysis
Analysis Results:
Analysis type = Deterministic
Normal Force = 3044.52 t/ft
Resisting Force = 2836.48 t/ft
Driving Force = 2094.85 t/ft
Factor of Safety = 1.35403
Geometry:
Slope Height = 350 ft
Wedge Weight = 3654.72 t/ft
Wedge Volume =44299.6 ft^3/ft
Rock Unit Weight =0.0825 t/f'2
Slope Angle = 37 °
Failure Plane Angle =26 °
Upper Face Angle = 0 °
Bench Width : Not Present
Waviness = 0 °
Intersection Point (B)of slope and upper face = (464.466 , 350 )
Intersection point (C) of failure plane and upper face = ( 717.606 , 350 )
Failure plane length ( Origin --> C ) = 798.41 ft
Slope length ( Origin --> B ) = 580.888 ft
Tension Crack : Not Present
Strength:
Shear Strength Model : Barton-Bandis
JRC = 5
JCS = 1500 t/ft^2
Residual Friction Angle (phir) = 30 °
Shear Strength: 2836.48 t/ft^2
Seismic Force:
Direction : Horizontal
Seismic Coefficient : 0.15
Seismic Force : 548.208 t/ft
External Forces : Not Present
RocPlane Analysis Information
Document Name:
05-1266 Tonalite 232
Job Title:
RocPlane - Planar Wedge Stability Analysis
Analysis Results:
Analysis type = Deterministic
Normal Force =2832.34 t/ft
Resisting Force =2638.42 t/ft
Driving Force = 1381.42 t/ft
Factor of Safety = 1.90993
Geometry:
Slope Height =325 ft
Wedge Weight =3151.26 t/ft
Wedge Volume = 38197.1 ft^3/ft
Rock Unit Weight= 0.0825 t/ft^2
Slope Angle = 37 °
Failure Plane Angle =26 °
Upper Face Angle= 0 °
Bench Width : Not Present
Waviness = 0 °
Intersection Point(B)of slope and upper face = (431.29 , 325 )
Intersection point (C)of failure plane and upper face = ( 666.349 , 325 )
Failure plane length ( Origin --> C ) = 741.381 ft
Slope length ( Origin --> B ) = 539.396 ft
Tension Crack : Not Present
Strength:
Shear Strength Model : Barton-Bandis
JRC = 5
JCS = 1500 t/ft^2
Residual Friction Angle (phir) = 30 °
Shear Strength: 2638.42 t/ft^2
External Forces : Not Present
RocPlane Analysis Information
Document Name:
05-1266 Tonalite 232 Seismic
Job Title:
RocPlane - Planar Wedge Stability Analysis
Analysis Results:
Analysis type = Deterministic
Normal Force = 2625.12 t/ft
Resisting Force =2459.55 t/ft
Driving Force = 1806.27 t/ft
Factor of Safety = 1.36167
Geometry:
Slope Height = 325 ft
Wedge Weight = 3151.26 t/ft
Wedge Volume = 38197.1 ft"3/ft
Rock Unit Weight = 0.0825 t/ft^2
Slope Angle = 37 °
Failure Plane Angle = 26 °
Upper Face Angle = 0 °
Bench Width : Not Present
Waviness =0 °
Intersection Point (B)of slope and upper face = (431.29 , 325 )
Intersection point (C) of failure plane and upper face = ( 666.349 , 325 )
Failure plane length ( Origin --> C ) =741.381 ft
Slope length ( Origin --> B )= 539.396 ft
Tension Crack : Not Present
Strength:
Shear Strength Model : Barton-Bandis
JRC = 5
JCS = 1500 t/ft^2
Residual Friction Angle (phir) = 30 °
Shear Strength: 2459.55 t/ft^2
Seismic Force:
Direction : Horizontal
Seismic Coefficient : 0.15
Seismic Force : 472.689 t/ft
External Forces : Not Present
APPENDIX C
"Conditions of Approval" Section
56
CONDITIONS OF APPROVAL FOR RECLAMATION PLAN NO. 2006-01,
AND MITIGATED NEGATIVE DECLARATION NO. 2006-06
PACIFIC AGGREGATES, INC., APN(s) 389-200-015, 023 & 024
GENERAL CONDITIONS
1. Pacific Aggregates, Inc. (the "Applicant") shall defend, indemnify, and hold
harmless the City, its officials, officers, consultants, employees, and/or
agents from any claim, action, or proceeding against the City, its officials,
officers, employees, or agents concerning the project attached hereto.
Applicant shall enter into a pre-dispute indemnity agreement with the City
within 30 days after project approval.
PLANNING DIVISION
2. Approval of the Reclamation Plan will lapse and be void unless reclamation
activity is initiated within one (1) year after the completion of mining activity
as provided in the Reclamation Plan (phase 4). The Applicant may request
from the Planning Commission an extension of time on the Reclamation Plan
so long as the request is submitted to the Planning Department at least one (1)
month prior to the expiration of the originally approved Reclamation Plan.
The Planning Commission shall consider the extension request at a public
hearing. No extension of time shall exceed a period of one (1) year.
3. All conditions of approval shall be reproduced in Appendix C of the
Reclamation Plan within fifteen (15) days after approval by the Planning
Commission. The Applicant shall sign and complete an "Acknowledgement
of Conditions" form within 30 days of approval of the Reclamation Plan by
the Planning Commission and shall return the executed original to the
Planning Division for inclusion in the case records.
4. All site improvements approved with this request shall be constructed as
indicated on the approved Reclamation Plan. Revisions to approved plans
shall be subject to the review and approval of the Planning Commission except
as otherwise noted in these conditions.
5. Structures shall be placed on-site as depicted on the Reclamation Plan Figure
8A. The Community Development Director or Designee may approve minor
modifications to the placement of structures on-site.
Plannii,ig C.otl mission Approver/
l i): 200h
i
CONDITIONS OF APPROVAL FOR RECLAMATION PLAN NO.2006-01,
AND MITIGATED NEGATIVE DECLARATION NO. 2006-06
PACIFIC AGGREGATES,INC.,APN(s) 389-200-015, 023 & 024
6. Landscaping. Landscaping shall be undertaken consistent with the
standards set forth in the Reclamation Plan, the Habitat Mitigation and
Monitoring Plan, and the mitigation measures contained in the Mitigated
Negative Declaration.
7. The proposed project shall comply with the zoning and development
standards identified in the Alberhill Ranch Specific Plan and corresponding
amendments thereto.
8. Truck Maintenance. All trucks exiting the Nichols Mine project site shall
be washed and rattled to prevent materials from spilling onto adjacent roads
and streets.
9. The Applicant shall submit a temporary wall and fence plan for screening
purposes subject to the review and approval of the Community Development
Director or Designee.
10. The Applicant shall place a weatherproof YxY sign at the entrance to the
project site identifying the approved days and hours of operation and a
statement that complaints regarding the operations of the mining project be
lodged with the City of Lake Elsinore Code Enforcement Division, which
can be reached at (951) 674-3124.
ENVIRONMENTAL PLANNING
11. Air and Water Pollution. All operations shall be conducted in compliance
with the rules, regulations, and requirements of the South Coast Air Quality
Management District and the State Water Quality Control Board. Applicant
shall provide to the Community Development Director or Designee a copy
of any and all permits secured on behalf of the Applicant from either South
Coast Air Quality Management District and/or the State Water Quality
Control Board.
12. Noise Suppression.
A. All equipment and premises employed in conjunction with any of the
uses identified in the Reclamation Plan shall be constructed, operated
and maintained in accordance with Lake Elsinore Municipal Code
Section 17.78.
._J
Planning Commission Approved
l W3!2006
CONDITIONS OF APPROVAL FOR RECLAMATION PLAN NO.2006-01,
AND MITIGATED NEGATIVE DECLARATION NO. 2006-06
PACIFIC AGGREGATES,INC.,APN(s) 389-200-015,023 & 024
B. Those standards for noise suppression, set forth in Chapter 17.78 of
the LEMC, which apply to construction activities shall apply to
activities undertaken pursuant to the Reclamation Plan.
C. The project shall not exceed the maximum permissible sound level",
by receiving land use set forth in Section 17.78.060 of the Lake
Elsinore Municipal Code. During those times not restricted in Section.
17.78.060 of the Lake Elsinore Municipal Code, the project shall not
exceed an exterior noise standard of 60 dB Ldn at the outer project
boundary adjacent to residential and other sensitive land uses.
D. The Applicant shall submit a "Noise Control Plan" identifying
anticipated operating noise levels at the outer project boundaries. The
Noise Control Plan shall ensure adequate operating noise control
measures through the provision of mufflers and the physical
separation of machinery and maintenance areas from adjacep .
residential uses and other sensitive land uses. The Noise Control Plan
shall be subject to the review and approval of the Community
Development Director or Designee.
13. Hours of Operation. The Appheant shall litnit mining and feelamatien
tie to lioufs „f 7.00 aFriday.
A. Hours of Operation - Truck Trips. No hauling of aggregate
material from the site to Pacific Clay on Nichols Avenue shall occur
between the hours of lam — 9am and 2:30pm — 5:00pm Monday
through Friday. No truck traffic shall occur on Sundays or legal
holidays.
B. Hours of Operation — Extractive Activities and Processing:
1. Extractive activity between elevation 1650 — 1310 shall
be limited to the hours of lam — 7pm Monday through
Saturday.
2. Processing activity, which includes crushing, conveying,
washing, separating and loading aggregates shall be
limited to the hours of lam — 12am Monday through
Friday. Processing activity, as defined above, shall also
be permitted on Saturdays between the hours of lam —
7pm.
Plannim-, Commission Approved
10:' 10('j 6
CONDITIONS OF APPROVAL FOR RECLAMATION PLAN NO.2006-01,
AND MITIGATED NEGATIVE DECLARATION NO. 2006-06
PACIFIC AGGREGATES,INC.,APN(s) 389-200-015, 023 & 024
3. No extractive or processing activity shall occur on
Sundays or legal holidays. (Amended by the Planning
Commission at the October 3, 2006 hearing)
14. Light. All exterior on-site lighting shall be shielded and directed on-site so as
not to create glare onto neighboring property and streets or allow illumination
above the horizontal plane of the fixture.
15. Biology/Habitat Mitigation and Monitoring Plan
A. Nesting Surveys. The Applicant shall conduct pre-grading nesting
bird surveys in any areas where earth-moving is to occur within the
nesting season (February 1 through August 31), and in areas where
there is sufficient habitat to promote nesting.
B. Revegetation. Per the revegetation efforts, the Applicant shall hydro-
seed the re-created slopes with a native erosion control seed mix as
well as include native: trees and shrubs from container plantings.
Further, the Applicant shall plant a native wildflower mix on the
lower elevations within the pad areas.
C. Irrigation. Once hydro-seeding has occurred, the Applicant shall be
responsible for supplying sufficient irrigation to adequately germinate
and establish the applied seed, particularly during the first winter and
spring following planting. The container stock shall be irrigated as
long as necessary to establish the root systems in the native soils,
possibly as long as one .to two years. Areas where inadequate seed
establishment has taken place shall be re-sprayed or re-seeded within
30 days of identifying the inadequacy.
D. Plant Replacement. The Applicant shall be responsible for replacing
any dead or terminally diseased plants until the final success criteria
have been met. The replacement plants shall be of the same species,
size, and spacing as those plant species being replaced.
E. Non-Native Plants. The Applicant shall initially remove all non-
native invasive species on the reclamation site. No area shall be
allowed to have more than twenty percent (20%)of the ground cover
provided by non-native plants. If inspections reveal that non-native
Planning Coininisskin Approved
10 /2006
CONDITIONS OF APPROVAL FOR RECLAMATION PLAN NO.2006-01, i
AND MITIGATED NEGATIVE DECLARATION NO.2006-06
PACIFIC AGGREGATES, INC.,APN(s) 389-200-015,023 & 024
plants are becoming established on the reclamation site, removal shall
immediately be initiated.
F. Monitoring and Performance Criteria. The Applicant shall follow
the vegetation monitoring procedures, and achieve the target functions
and values as described the Habitat Mitigation and Monitoring Plan
(HMMP). Further, the Applicant shall meet the "density performance
criteria" as identified in Table 9 of the HMMP. In five years, should
the vegetation not sufficiently be established to meet the final success
criteria, vegetation monitoring shall be conducted until the success
criteria have been met for a minimum of two years without human
intervention.
G. Final Success Criteria. When the five-year monitoring period is
complete, if all performance standards have been met, the Applicant
shall request written confirmation from the City of Lake Elsinore and
Ca i feria ne pai4fmi7ent of
Conservation, ��neo of
Mine
Aeelamatin„
verifying final success criteria have been met. For each year in which
the Applicant fails to meet the performance standards, one (1)
additional year of re-vegetation and monitoring shall be required
using the same performance criteria as listed for year five. At the City
of Lake Elsinore's and Cali femi nepatment of CenseFYa*
Offs e of Mine Ae el.,matier. discretion, if the final success criteria are
not met, the Applicant shall prepare an analysis of the cause(s) of
failure(s) and propose remedial actions for approval. (Amended by the
Planning Commission at the October 3, 2006 hearing)
H. Performance Extension. If substantial non-compliance with the
performance and/or final success criteria occurs, the Applicant will
consult the City of Lake Elsinore
Cease ion, Ofino�i„e Ree l matien to determine whether
corrective measures and an extension of the five-year monitoring
period will be necessary. (Amended by the Planning Commission at
the October 3, 2006 hearing)
I. Reporting. At the end of each of the five monitoring period growing
seasons, an annual report shall be prepared for submittal to the City of
Lake Elsinore and Calir^ flia Depaftmen' of Censefyatzo;"Offie
Kline Ree.lamation by June 1 st of each year for the duration of the
Planning Commission Approved
10/?;`2006
CONDITIONS OF APPROVAL FOR RECLAMATION PLAN NO.2006-01,
AND MITIGATED NEGATIVE DECLARATION NO.2006-06
PACIFIC AGGREGATES,INC.,APN(s) 389-200-015, 023 & 024
monitoring period. These reports shall assess both attainment of yearly
target criteria and progress toward final success criteria, as well as any
revisions to the approved Reclamation Plan. These reports shall
include the survival of tree and shrub container stock. The number of
species of plants replaced, an overview of the mitigation effort, the
method used to assess these parameters, and photos from designed
photo stations shall also be included. (Amended by the Planning
Commission at the October 3, 2006 hearing)
J. Contractor Education. Pr-ief to the eemmenee ment of gr- . ing or any
e-enstmetien werk, the—Applicant '�—een*
involved with eepies of the Reelamation Plan, Mitigation Meniter-ing
and Repeffing Plan, U.—abitat, Mitigation and N4eniter-ing Plan, and the
all
Prior to commencement of grading activities, the Superintendent shall
be familiar with the Reclamation Plan, Mitigation Monitoring and
Reporting Plan, Habitat Mitigation and Monitoring Plan, and the
Conditions of approval and shall ensure that all contractors are in
compliance with the requirements of those documents at all times.
(Amended by the Planning Commission at the October 3, 2006
hearing)
K. Access Control. The Applicant shall delineate the service access
routes to keep the contractors within these routes as well as prevent
them from entering sensitive or recently reclaimed areas.
L. Water Quality. No debris, soil, silt, sand, rubbish, cement or
concrete or washings thereof, oil or petroleum products or washings
thereof, shall be allowed to enter into or be placed in a manner where
it may be washed via rainfall or run-off into local creeks. Further, the
Applicant shall comply with the requirements of NPDES by
implementing a SWPPP that incorporates BMPs and a Spill
Prevention, Control and Counter-measure Plan (SPCC) throughout the
operation of all reclamation activities.
Planning Con-.tinksion Approved
10/3/2006
CONDITIONS OF APPROVAL FOR RECLAMATION PLAN NO. 2006-01,
AND MITIGATED NEGATIVE DECLARATION NO.2006-06
PACIFIC AGGREGATES,INC.,APN(s) 389-200-015, 023 & 024
M.Clean Up. All clean-up operations shall be conducted within one
year of the termination of mining. Scrap material, refuse, unwanted
equipment, and surplus materials shall be removed and disposed of at
an appropriate landfill site.
N. Mining. The Applicant shall comply with the provisions of Lake
Elsinore Municipal Code Section 14.04.200 with regard to inspection
of the surface mining operation. (Amended by the Planning
Commission at the October 3, 2006 hearing)
16. The Applicant shall comply with all mitigation and recommendations
identified in both the Mitigation Monitoring Program and the Habitat
Mitigation and Monitoring Program and which accompany Mitigated
Negative Declaration No. 2006-06.
ENGINEERING DIVISION
17. The Applicant shall provide detention and desiltation basin sized to detain
the increase in the 100 year storm flow between the developed and
undeveloped site conditions.
18. The slope on the north and east sides of the project shall be improved with
long-term erosion control planting.
19. Sight distance for ingress/egress at all driveways shall meet CalTrans
standard for site distance.
20. Parking shall not be allowed on Nichols Road.
21. Provide for on-site loading and unloading of inventory.
22. Public Works requirements identified in the approved Reclamation Plan
shall be complied with as a condition of the Reclamation Plan.
23. All temporary access private roadway improvements shall be installed prior
to the export of on-site material.
24. The Applicant shall pay any required plan review and site inspection fees.
Planning Commission Approved
t p/3!2006
CONDITIONS OF APPROVAL FOR RECLAMATION PLAN NO.2006-01,
AND MITIGATED NEGATIVE DECLARATION NO.2006-06
PACIFIC AGGREGATES,INC.,APN(s) 389-200-015, 023 & 024
25. Applicant shall acquire off-site easements as needed.
26. Prior to the export of on-site material, the Applicant shall install a city
standard public street light-at the project entrance subject to the review and
approval of the City Engineer.
27. Prior to the export of on-site material, the Applicant shall submit a traffic
control plan showing all traffic control systems for the project to be
approved by the City Engineer or his/her Designee. All traffic control
systems shall be installed prior to export of onsite material.
28. Approval of the Reclamation Plan shall constitute conceptual grading plan
approval.
29. All soils, geology and seismic reports are contained in the Reclamation Plan
and shall be reviewed and approved by the City Engineering Division prior
to the export of on-site material.
30. Slopes of Excavations. No production from an open pit quarry shall be
permitted which creates a post mining slope steeper than two foot (2')
horizontal to one foot (1') vertical, unless otherwise approved by the City
Engineer. Provided, however, that a steeper slope may be permitted during
mining operations where soil content or material is such that a vertical-cut
excavation is safe in the opinion of the Division of Industrial Safety,
Department of Industrial Relations of the State of California and such
opinion shall be memorialized in writing and submitted to the City for
approval by the City Engineer. (Amended by the Planning Commission at
the October 3, 2006 hearing)
31. All grading for reclamation purposes shall be done under the supervision of
a geotechnical engineer. All slopes steeper than 2 to 1 shall be approved by
the City Engineer for stability and proper erosion control prior to the export
of on-site material. All manufactured slopes greater than 30 feet in height
shall comply with City Standards requiring a six foot (6') bench for every 30
vertical feet of slope. Said slopes shall be re-landscaped in accordance with
the Reclamation Plan Habitat Mitigation and Monitoring Plan.
32. Prior to the export of on-site material, the Applicant shall provide the City a
photographic baseline record of the condition of all proposed public City
Planning Commission Approves{
10/1/2006
CONDITIONS OF APPROVAL FOR RECLAMATION PLAN NO.2006-01,
AND MITIGATED NEGATIVE DECLARATION NO.2006-06
PACIFIC AGGREGATES,INC.,APN(s) 389-200-015,023 & 024
haul roads. In the event of damage to such roads, Applicant shall pay full
cost of restoring public roads to the baseline condition. A bond may be
required to ensure payment of damages to the public right-of-way, subject to
the approval of the City Engineer.
33. Individual lot drainage shall be conveyed to a detention/treatment facility as
depicted in the Reclamation Plan.
34. All natural drainage traversing the site shall be conveyed through the site, or
shall be collected, conveyed and released consistent with historic flows and
patterns as described in the approved Reclamation Plan.
35. Applicant shall satisfy all requirements of Lake Elsinore Municipal Code
Section 15.64 regarding flood hazard regulations.
36. Applicant shall satisfy all requirements of Lake Elsinore Municipal Code
Section 15.68 regarding flood plain management.
37. Applicant shall submit Hydrology and Hydraulic Reports for review and
approval by City Engineer. Applicant shall mitigate any flooding and/or
erosion caused by reclamation of the site and diversion of drainage
consistent with standards established by the Riverside County Flood Control
District.
38. Private storm drain inlet facilities shall be appropriately marked to prevent
illegal dumping in the drain system consistent with the standards established
by the Santa Ana Regional Water Quality Control Board.
39. Historic flow patterns & rates shall be preserved. 10-year storm runoff shall
be contained within the curb and the 100-year storm runoff shall be
contained with the street right-of-way. When either of these criteria is
exceeded, drainage facilities shall be installed.
40. In the event historic storm flows are exceeded or reduced, the Applicant
shall submit a drainage acceptance letter from adjacent downstream property
owner(s) for out-letting the proposed storm water run-off on private property
prior to discharge of storm water run-off.
Planning Commission Approved
10 ',i2006
i
CONDITIONS OF APPROVAL FOR RECLAMATION PLAN NO.2006-01,
AND MITIGATED NEGATIVE DECLARATION NO.2006-06
PACIFIC AGGREGATES,INC.,APN(s)389-200-015, 023 &024
41. Applicant shall install BMP's using the best available technology to mitigate
any urban pollutants from entering the watershed. The operator shall prevent
trackout onto public highways. If trackout occurs, the operator shall take
preventative and remedial measures immediately.
42. The Applicant shall comply with State Law and provide a SWPPP for
construction and post construction which describes BMP's that will be
implemented for the development and including maintenance
responsibilities. The owner operator can comply by submitting a "Notice of
Intent" (NOI), develop and implement a Storm Water Pollution Prevention
Plan (SWPPP) a monitoring program and reporting plan for the surface mine
site.
43. Education guidelines and BMP's shall be provided to employees of the
development in the use of herbicides, pesticides, fertilizers as well as other
environmental awareness education materials on best construction and
operation practices that contribute to protection of stormwater quality and
meet the goals of the BMP in Supplement "A" in the Riverside County
NPDES Drainage Area Management Plan.
44. Applicant shall construct the storm water detention facility per the
Reclamation Plan and utilize BMP's that will reduce storm water erosion the
temporary Reclamation Plan areas.
45. At the time the county adopts, as part of any ordinance, regulations specific
to the N.P.D.E.S., this project (or subdivision) shall comply with them.
46. All on-site Roads and Driveways. BMPS, established by the South Coast
Air Quality Management District, shall be implemented and all roads and
driveways shall be kept wet while being used or shall be treated with oil,
asphaltic concrete or concrete, or other palliative to prevent the emission of
dust.
47. Access Roads. All private access roads leading off any paved public street
onto the Nichols Mine project site shall be paved to a minimum width of
twenty four feet (24') with asphaltic concrete or an equivalent material
approved by the City Engineer or Designee, not less than three inches in
thickness with adequate compacted base material for not less than the first
one hundred feet (100') of said access road.
Planning Commission Approved
l0/ '2006
CONDITIONS OF APPROVAL FOR RECLAMATION PLAN NO.2006-01,
AND MITIGATED NEGATIVE DECLARATION NO.2006-06
PACIFIC AGGREGATES,INC.,APN(s) 389-200-015,023 & 024
48. Intersection site distance shall meet the design criteria of the CALTRANS
Design Manual (particular attention should be taken for intersections on the
inside of curves). A special limited use easement must be recorded to limit
the slope, type of landscaping and wall placement to preserve adequate site
distance.
49. Intersecting streets on the inside radius of a curve will only be permitted
when adequate sight distance is verified by a registered civil engineer.
50. Existing access easements over property must be addressed to the
satisfaction of the affected owners prior to export of on-site material.
51. In .accordance with the City's Franchise Agreement for waste disposal and
recycling, the Applicant shall be required to contract with CR&R, Inc., for
removal and disposal of all waste material, debris, vegetation and other
rubbish generated during- cleaning, demolition, clear and grubbing or all
other phases of construction.
52. The City of Lake Elsinore contracts with Riverside County for mining
inspection and compliance. All applicable fees for inspection with respect to
the mining operation shall be paid directly to Riverside County Building and
Safety Mining Division. Copies of these documents shall be provided to the
Engineering Division for the City of Lake Elsinore to be kept in the project
files.
COUNTY OF RIVERSIDE MINING AND RECLAMATION CONDITIONS
53. Safety Berm. A four (4) foot, minimum vertical height, safety berm, shall
be installed at the top of all cut/fill slopes at least three (3) feet in width.
54. Benches & Slopes
A. During the Reclamation operation, benches and slopes shall be
installed according to the approved Reclamation Plan.
J B. Working slopes below benches shall not be steeper than 1 H:1 V.
Finished slopes shall not exceed 2H:IV, unless otherwise approved by
Plannimg Commission Approved
10/)/M 6
CONDITIONS OF APPROVAL FOR RECLAMATION PLAN NO.2006-01,
AND MITIGATED NEGATIVE DECLARATION NO.2006-06
PACIFIC AGGREGATES,INC.,APN(s) 389-200-015, 023 & 024
the City Engineer. (Amended by the Planning Commission at the
October 3, 2006 hearing)
55. Signage
A. Signs shall be installed at the top of all manufactured slopes (cut or
fill), at intervals not greater than 100 linear feet.
B. Each sign shall read "DANGER" "OPEN PIT MINE" "STEEP
SLOPE". Signs shall be at least 18" X 18" square with contrasting
background to lettering. (i.e.: white background and black lettering).
C. Perimeter signs around the approved Reclamation Plan or Surface
Mine boundaries shall be installed with contrasting
lettering/background warning of "DANGER" "KEEP OUT" and
"MINERAL RESOURCE ZONE" or "SURFACE MINING
OPERATION".
56. Trash & Debris Removal. The parcel(s) where the mine is located shall be
kept free of trash (including old tires) and other debris. There shall be no
importing of recyclable materials or construction debris without a specific
permit for that activity.
57. Contractor Equipment Storage. All non-mining equipment must be stored
in a designated area permitted for "Contractor Storage." A "Contractor
Storage" permit must be obtained from the Planning Department prior to
storage of any non-mining equipment.
58. Vehicle Storage. There shall be no storage of passenger vehicles, campers,
travel trailers or other personal property that is not related directly to the
mining of minerals at this site.
59. Temporary/Portable Office. Temporary/portable office trailers are
permitted provided they are installed after a building permit is obtained.
Other structures for night watchman security must be installed or
constructed by building permit.
Planning C'ominission Approwd
1 C):3!2006
CONDITIONS OF APPROVAL FOR RECLAMATION PLAN NO. 2006-01,
AND MITIGATED NEGATIVE DECLARATION NO.2006-06
PACIFIC AGGREGATES,INC.,APN(s)389-200-015, 023 & 024
60. Importing Concrete & AC. There shall be no importing and/or storage of
used concrete, asphalt or other inert construction materials for recycling
without the specific approval of the Planning Division.
61. Importing/Storing of Vegetation. There shall be no importing and/or
storage of any cut vegetation without specific approval of the Planning
Division (Environmental).
62. Annual Financial Assurance Review.
A. Each year after the 1st year of land disturbed under the Reclamation
Plan, the Applicant shall review the financial assurance on file with
the City of Lake Elsinore.
B. The Applicant shall submit a written report to the Engineering
Division indicating any changes to disturbed land or other conditions
that could increase or decrease the amount of financial assurance.
This report shall also indicate the financial assurance has been
reviewed and include a new cost estimate if needed as described
below.
C. After the financial assurance review, if the total dollar amount
indicates an increase or decrease of more or less than five (5) percent
of the financial assurances on file, the Applicant shall submit a new
cost estimate to the Engineering Division taking into consideration all
information addressed in the California Resources Code section
2773.1 (a) (3) using the forms provided by the California Department
of Conservation's internet web site.
D. At least every five (5) years after the initial land is disturbed, the
Applicant must submit a new cost estimate taking into consideration
all information addressed in the California Resources Code section
2773.1 (a) (3) using the forms provided by the California Department
of Conservation's internet web site.
63. Property Line Setbacks. There shall be a graded setback from all property
lines of not less than 10 feet from all cut/fill slopes per the approved
Reclamation Plan.
Planning Commission Approved
1.0.3/2006
CONDITIONS OF APPROVAL FOR RECLAMATION PLAN NO.2006-01,
AND MITIGATED NEGATIVE DECLARATION NO.2006-06
PACIFIC AGGREGATES,INC.,APN(s) 389-200-015,023 & 024
64. In all other areas within the boundaries of the Nichols Mine, the provisions
of Lake Elsinore Grading Ordinance shall be followed unless modified by
these conditions.
65. Building/Grading Permits. The provisions of the City of Lake Elsinore
Grading Ordinance shall be enforced for all construction within the Nichols
Mine project site boundaries unless specifically regulated by another
approved condition of the Reclamation Plan.
66. Annual Report Information. The Applicant shall submit to the
Engineering Division with the annual report the following information:
A. Indicate mine proximity to the permit boundaries by topography;
B. Indicate maximum depth of excavated areas;
C. Provide quantity in cubic yards and tons of materials mined during the
reporting period;
D. Certify all excavated areas are within the limits of the vested Surface
Mining Permit and RP 112 issued by the County of Riverside, and the
Reclamation Plan approved by the City of Lake Elsinore;
E. Provide data indicating any reclaimed land during the reporting
period;
F. A certified engineering geologist or geotechnical engineer shall
inspect all excavated slopes within the permitted boundaries (active or
inactive) for slope stability. The Applicant shall provide to the City
Engineer a copy of the inspection report.
G. NOTE: At least every three years of operation, the Applicant shall
provide to Engineering, aerial topography showing incremental and
total changes to excavations. This will include cross-sectional maps
showing berms, slope angles and benches of all excavations.
67. Public Improvements that require grading, filling, over excavation and
recompaction, and base or paving which requires a grading permit, are
subject to the included Engineering Division's conditions of approval.
Planning Commission Approved
CONDITIONS OF APPROVAL FOR RECLAMATION PLAN NO. 2006-01,
AND MITIGATED NEGATIVE DECLARATION NO. 2006-06
PACIFIC AGGREGATES,INC.,APN(s)389-200-015, 023 & 024
Furthermore, all Reclamation Plan grading shall conform to the approved
Reclamation Plan.
68. NPDES/SWPPP. The Applicant shall provide to the Engineering Division
evidence of compliance with the following: "Effective March 10, 2003
owner operators of grading or construction projects are required to comply
with the N.P.D.E.S. (National Pollutant Discharge Elimination System)
requirement to obtain coverage under the general industrial permit from the
State Water Resource Control Board (SWRCB). The permit requirement
applies to grading and construction sites of one acre or larger.
69. Geotechnical/Soils Reports. All grading shall be in conformance with the
recommendations of the geotechnical/soils reports as approved by the City
Engineer and as integrated into the Reclamation Plan. .
70. Max Slope Ratio. Graded slopes shall be limited to 2H:1 V unless otherwise
approved by the City Engineer.
71. Slope Stability Analysis. A slope stability report shall be submitted in the
annual report to the City Engineer.
72. Drainage Design Q100. Any public drainage facilities shall be designed in
accordance with Riverside County Flood Control & Water Conservation
District's standards, and shall at a minimum, accommodate 100-year storm
flows. Additionally, Engineering Division conditional approval of this
application includes an expectation that the Reclamation Plan reviewed and
approved complies with any WQMP (Water Quality Management Plan)
required by the Regional Water Quality Control Board for urban
development pollutants.
73. Minimum Drainage Grade. Minimum drainage grade shall be 1% except
on portland cement concrete where 0.5% shall be the minimum.
74. Slope Setbacks. All excavated or graded slopes shall have setbacks from
buildings and property lines per the standards contained in the Reclamation
Plan.
75. Private Roads. Construction of a private road shall conform to the
approved Reclamation Plan.
Planning Commission Approved
]0 3/200(
CONDITIONS OF APPROVAL FOR RECLAMATION PLAN NO.2006-01,
AND MITIGATED NEGATIVE DECLARATION NO. 2006-06
PACIFIC AGGREGATES,INC.,APN(s)389-200-015, 023 & 024
76. Update Financial Assurance. ,
The applicant shall comply with the provisions of the Lake Elsinore
Municipal Code Section 14.04.140 regarding Financial assurances.
(Amended by the Planning Commission at the October 3, 2006 hearing)
77. NOTE: At least every three years of operation, the Applicant shall provide
the City of Lake Elsinore Engineering Division with aerial topography
showing incremental and total changes to excavations. This will include
cross-sectional maps showing berms, slope angles and benches of all
excavations.
Planning Commission Approved
i W1;2006
APPENDIX E
Sediment Pond Size Graphics and Calculations-prepared by KWC- June 27, 2006
i
I
61
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THE AREA OF BOTTOM RASIN = 26,297 SF 4
THE AREA OF DATER SURFACE BASIN — 46,743 SF 4
c
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2
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117. 1 AC X 133 CY = 15,574.3 CY
15,574.3 X 27 = 420,506 OF °
420,506 CF y = 9.6 ACfT
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BASIN 6' H DEPTH OF PASIN
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OFFSITE AREA = 177 AC
ONSITE AREA = _38.2 AC
{CATER AREA = 55.9 AC c
55.9 AC X 133 CY = 7,434.7 CY n
74j4.7 X 27 = 200,738 CF
200,738 CF = 4:6 ACFT
c
BASIN 1' H AREA = 4.6 AC
c
V = 4.6 ACFT Q
THE AREA OF BOTTOA! BASIN = 24,580 SF W
THE AREA OF {CATER SURFACE BASIN = Y9,678 SF
c
THE AVER4GE AREA OF BASIN = 6-,.238 SF = 32, 119 SF
2
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845IN 6' H DEPTH OF BASAV
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THE REOUIfED V01ME OF 4.6 ACFT.
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40 AC X 133 CY = 5,320 CY
5,320 X 27 = 143,,640 CF
143,640 CF = 3.3 ACFT
BASIN I ' H ---> AREA = 3..3 AC
V = 3.3 ACFT
THE AREA OF BOTTOM BASIN = 11,664 SF
THE AREA OF !WATER SURFACE BASIN = 24,336 SF
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1880 �MI TO AGE UE SUITE L ENINEERS�100•CORONA,CA.9 881 PLANNERS- -33370 511--7334-2130 TRANSMITTAL
TO: The Planning Associates J.N.: 05.934.1.11
3151 Airway Ave., Suite R1
Costa Mesa, CA 92626
PH., 714-556-5200 DATE: August 30, 2006
ATTN. Margaret Partridge
RE: Nichols Canyon Mine Reclamation
X FOR YOUR FILE/USE APPROVED AS SUBMITTED U.S. MAIL
FOR REVIEW&COMMENT APPROVED AS NOTED DHL GROUND
FOR APPROVAL RETURNED FOR CORRECTIONS X DHL OVERNIGHT
PER YOUR REQUEST OTHER DELIVERY BY KWC FEDERAL EXPRESS
FOR YOUR INFORMATION COLLECTION BY CLIENT
FOR YOUR SIGNATURE DELIVERY BY COURIER
ITEMS SENT.
• One (1) copy of Reclamation Plan (size 11 x 17)
• One (1) copy of Maximum Depth Exhibit (1 sheet)
• One (1) copy of Basin Summaries (4 Basins)
REMARKS:
If you have any questions, please do not hesitate to contact me at extension 241.
Respectfully submitted,
KWC ENGINEERS
v Frank Blyleven
R:\05\934\TRANS\PlanningAssoc Partridge.doc
APPENDIX D
"Definitions" Section
i
58
DEFINITIONS
Acre-foot: Volume of water required to cover an area of one acre to a depth of one foot.
Alluvium: A geologic term for general deposits made by streams, riverbeds, or floodplains
typically composed of a mixture of sands, gravels, and clays.
BACT: Best Available Control Technology — Air quality term used to describe air pollutant
control equipment for equipment and facilities that produce air emissions.
Bedrock: The solid rock that underlies soil and unconsolidated material.
California Endangered Species Act: California state legislation enacted in 1984, with the intent
to protect floral (plant) and faunal (animal) species by listing them as "rare," "threatened"
"endangered," or"candidate." The Act also provides a consultation process for the determination
and resolution of potential adverse impacts to the species.
California Environmental Quality Act (CEQA): Policies enacted in 1970, and subsequently
amended, the intent of which is the maintenance of a quality environment for the people of
California now and in the future.
Discretionary project or action: Project that "requires the exercise of judgment or deliberation
when the public agency decides to approve or disapprove a particular activity" (CEQA
Guidelines §15357).
Endangered species: A species whose prospects of survival and reproduction in the wild are in
immediate jeopardy from one or more causes.
Environmental Impact Report(EIR): "Detailed statement or report prepared under CEQA
describing and analyzing the significant effects of a project and discussing ways to mitigate or
avoid the effects" (CEQA Guidelines §15362).
Fine Particulate Matter: Extremely small air pollutants less than 2.5 microns in diameter and
that form primarily from engine combustion sources, not from fugitive dust sources.
Growth Media: Surface material, which contains nutrients,micro flora, and plant seeds.
Hazardous material: Substance, which may cause injury to persons or damage to property
because of its potential for corrosiveness, toxicity, ignitability, chemical reactivity, or
explosiveness.
Hydrogeology: The study of surface and subsurface water.
Local Source: A local source is defined as being as close to the same geographic location or
watershed, elevation , aspect, an soil type as the project site.
1
Major Precipitation Event: Precipitation that greatly exceeds the average amount of rainfall for
the location and time of year at which the precipitation occurs
59
Overburden: Material of little to no value under the topsoil or growth media which overlays the
ore or aggregate of value.
Permeability: The capacity of rock, sediment, or soil for transmitting a fluid.
Phasing: Planned stages of project development.
Rare species: A species, which, although not presently threatened with extinction, is in such
small numbers throughout its range that it, may become endangered if its present environmental
worsens.
Reclamation: The combined process of land treatment that minimizes water degradation, air
pollution, damage to aquatic or wildlife habitat, flooding, erosion, and other adverse effects from
surface mining operations (SMARA 2004).
Regional Water Quality Control Board (RWQCB): Agency which administers the
requirements of the California Administrative Code, Title 23, Division 3, Chapter 15 (Section
2595,g,7) to ensure the highest possible water quality consistent with all demands. Right-of-way
(ROW): The right granted to pass over property owned by another. The strip of land granted or
leased from the landowner over which facilities such as roadways, railroads, or power lines are
built.
Sensitive species: A plant or animal species, which is recognized by the government or by a
conservation group, as being depleted,rare, threatened, or endangered.
Substantial Erosion: Eroding of topsoils to a point at which the soil is modified in quantity or
location from its pre-erosion state.
Surface Instability: The inability of the surface to remain in a stable and static state
Threatened Species: Species, which, although not presently threatened with extinction, are
likely to become endangered in the foreseeable future in the absence of special protection and
management efforts.
Watershed: A region that contributes water flow and runoff to a particular stream channel or
system of channels due to its topography.
Water table: The upper water level of a body of groundwater.
1
60
APPENDIX F
General Biological Resources Assessment Nichols Mining Site,
dated October 26, 2005, Amended September 26, 2006.
i
62
General Biological Resources Assessment
Nichols Mining Site
Assessors Parcel Numbers 389-200-023/024/015
Lake Elsinore, California
Total Parcels Acreage 204.75
Project Area 99 Acres of impact
Prepared for:
Pacific Clay Products,Inc.
14741 Lake Street
Lake Elsinore, CA 92000
Prepared by:
The Planning Associates
Hardy Strozier, Esq.
3151 Airway Avenue Suite R-1
Costa Mesa, California 92626
Plannin Assoc_,AOL.Com
Principal Investigators:
Jack C. Turner Ph.D. Philippe Vergne
The Planning Associates Envira
23849 Gymkhana Road
Ramona, CA 92065
(760) 788-0450
Email : PHVERGNEna,aol.com
Field Survey Conducted On:
August 8, 15 and 22, 2005
Report Date
October 26, 2005
Amended September 26, 2006
1
Table of Contents Page
ExecutiveSummary.............................................................................................................2
1.0 Introduction....................................................................................................................4
2.0 Project Location and Description...................................................................................4
3.0 Methods..........................................................................................................................4
3.1 Data Review
3.2 Field Surveys
3.3 Jurisdictional Determination and Wetland Delineation
3.4. Regulatory Background
4.0 Results............................................................................................................................8
4.1 Sensitive Biological Resources
4.2 Weather, Soils, and Topography
4.3 Disturbances
4.4 Plant Communities
4.5 Wildlife
4.6 Sensitive Biological Resources
4.7 Western Riverside County Multiple Species Habitat Conservation Plan
4.8 Drainages and Wetlands
4.9 Raptors, Migratory Birds, and Habitat
4.10 Habitat Fragmentation and Wildlife Movement
5.0 Discussion....................................................................................................................15
6.0 References....................................................................................................................17
List of Figures
Figure 1. Regional Vicinity and Project Location
Appendices
Appendix A- Flora and Fauna Compendia
Appendix B - Sensitive Biological Resources
Appendix C - Plates
Executive Summary
The Planning Associates (TPA) staff Biologist Dr. Jack Turner and regulatory planners, and
Philippe Vergne,biologist from Environmental Associates (ENVIRA),prepared a phase one
general biological assessment for Assessors Parcel Numbers 389-200-023/024/015 located in
Riverside County, California.
The parcels have a surface area of 204.75 acres. The proposed project calls for the extraction of
clay and other raw materials causing grading/mining/reclamation impacts to approximately 99
acres located to the north and south of Nichols Road and to the east of Highway 15, and the re-
contouring of the parcel to allow for the development of buildings for commercial use and
permanent re-vegetated native open space. Mining conducted for this project is a vested right.
A data review was conducted to provide information on plant and wildlife species known
occurrences within the vicinity. ENVIRA also reviewed other available technical information on
the biological resources of the site.
The Western Riverside County Multiple Species Habitat Conservation Plan (MSHCP) has
designated Criteria Cells that include conservation areas intended for protection of natural
resources. This MSHCP has been adopted by the City of Lake Elsinore and the City administers
the MSHCP for property within its jurisdiction. Based on project APN numbers entered in the
County database, the proposed project lies within the portion areas of MSHCP Criteria Cells W
of the Lake Elsinore Area Plan (4070,4067) as well as in Independent Cells 4166 and 4169)
slated for conservation or preferred for acquisition or protection by the County. Conservation
within this cell group will range from 80 to 90% of the Cell Group, focusing in the northwestern
portion. The MSHCP is specifically excluded from the subject property according to a legal
settlement agreement adopted between the county, city and property owner. The MSHCP
discussion is provided herein as a biology database for consideration in context with the on-site
biology studies conducted specifically for this reclamation project.
The MSHCP database has identified:
Seven Criteria Area species as follows:Thread-leaved brodiaea (Brodiaea filifolia),
Davidson's saltscale (Atriplex serenan var. davidsonii), Parish's brittlescale (Atriplex parishii),
Smooth tarplant (Centromadia pungens ssp.laevis), Round-leaved filaree (Erodium
macrophyllum), Coulter's goldfields (Lasthenia glabrata ssp. coulteri), Little mousetail
(Mysosurus minimus).
Nine Narrow Endemic plant species as follows Munz's onion (Allium munzii), San Diego
ambrosia (Ambrosia pumila), Slender-horned spineflower (Dodecahema leptoceras), Many-
stemmed dudleya (Dudleya multicaulis), California Orcutt grass (Orcuttia californica),
Spreading navarretia (Navarretia fossalis), San Miguel savory (Satureja chandleri), Hammitts
clay-cress (Sibara psishammittii), Wright's trichocoronis (Triichocoronis wrightii).
A general biological assessment was conducted of the project site on August 8, 15 and 22 2005.
Binoculars were used to aid in the identification of birds. All species identified by sight, call or
sign (burrows, scat, and tracks) were recorded. Site photographs were taken with a digital
camera.
Habitat evaluation and focused surveys were conducted for the above listed Criteria Area and
Narrow Endemic species and additional sensitive species identified by ENVIRA.
A focused burrowing owl (Athene cunicularia) survey, following recommended protocol was
also performed.
A determination of wetlands and waters subject to jurisdiction of the U. S. Army Corps of
Engineers (Corps) under Section 404 of the Clean Water Act and California Department of Fish
and Game (CDFG) under Sections 1602 et seq. of the California Fish and Game (CDFG) Code
was made on the project site.
Impacts to Criteria, Narrow Endemic and/or other sensitive species potentially present within the
project footprint are not expected to be significant due to one or more of the following factors: 1)
No suitable habitat exists on site; or, 2) The use of the site is limited to occasional foraging or
seasonal activity and the site is not a substantial portion of their distributional range.
There are no wetlands on the subject parcel and there is no Corps jurisdiction within the project
area since on-site impacted waterways are characterized as a series of disconnected dry washes.
Other Corps jurisdictional areas are avoided. If the Corps claims jurisdiction to these
disconnected washes, impacts to these drainages would have to be addressed under the
appropriate 404 Permit from the Corps and 401 Certification from the RWQCB.
i
Approximately 1,878 linear feet, or 0.11 acres will fall under the jurisdiction of the CDFG since
these dry/upland wash areas have limited jurisdiction. Impacts to the drainage would ordinarily
have to be addressed under a 1602 Agreement with the CDFG.
Wildlife values of the drainages on site are low due to dry ephemeral water flows and lack of
pooling and riparian vegetation. Most of the plant cover is upland and eradicated due to wildland
fire. The dry drainages and sheet flow provide some recharge to groundwater resources as water
flows without wetland or jurisdictional indicators into Temescal Wash..
Limited raptor nesting and raptor foraging habitat exists on site . The loss of this habitat is not
significant due to the limited amount of take and the project location.
Limited migratory bird nesting and good quality foraging habitat occurs on site. The loss of this
habitat could be considered moderately significant due to the amount of take and location of the
site within proximity to the Temescal wash. Due to scrub emergence and recovery from the 2004
fire, a pre-construction nesting bird survey will need be conducted prior to grading activity if
ground disturbance is to occur during the nesting season(February 1 through August 31).
No burrowing owls or sign of burrowing owls was detected on site. However due to the presence
of suitable but currently unoccupied habitat a pre construction clearance survey for BO will have
to be conducted within one month of grading activities.
3
The project site and footprint area offer moderate to low wildlife use potential. Habitat
fragmentation has already occurred in the project vicinity as a result of road construction and
nearby on-going mining operations.
1.0 Introduction
The Planning Associates (TPA) staff Biologist Dr. Jack Turner and regulatory planners, and
Philippe Vergne,biologist from Environmental Associates (ENVIRA),prepared a phase one
general biological assessment for Assessors Parcel Numbers 389-200-023/024/015 located in
Riverside County, California.
The purpose of the survey was to document the biological resources present onsite and to assess
the potential for sensitive resources to occur on the property.
2.0 Site Location and Project Description
The parcels have a surface area of 204.75 acres. The proposed project calls for the extraction of
clay and other raw materials from the northernmost acres located to the north of Nichols Road
and to the east of highway 215, and the re-contouring 99 acres of the parcel to allow for the
development of buildings for commercial use and open space on both sides of Nichols Road.
The proposed project site is located in section 25, Range 5 West, Township 5 South of the Lake
Elsinore U.S. Geological (USGS) 7.5' quadrangle map (Figure 1).
3.0 Methods
3.1 Data Review
A data search was conducted to provide information on plant and wildlife species known
occurrences within the vicinity. This review included biological texts on general and specific
biological resources, and those resources considered to be sensitive by various wildlife agencies,
local governmental agencies and interest groups. The documents reviewed include:
—List of sensitive biological resources provided by the California Natural Diversity Data Base
Western Riverside Multiple Species Habitat Conservation Plan (MSHCP) documents
—Biological resources report for this site and adjacent properties
—General texts and other documents identifying potential resources on the property
The results of the data search and assessment are provided in the Sensitive Species Table in
Appendix B.
We also reviewed other available technical information on the biological resources of the site.
We used the information to focus our survey efforts in the field.
4
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The existing site conditions were recorded, paying specific attention to habitats that may
potentially contain sensitive species. Sensitive species potentially present include those listed, or
candidates for listing by the U. S. Fish and Wildlife Service (USFWS), California Department of
Fish and Game (CDFG) and California Native Plant Society(CNPS).
3.2 Field Surveys
Field surveys were conducted by Philippe Vergne of ENVIRA on August 8, 15 and 22, 2005.
The property was surveyed using standard biological assessment survey techniques. Surveys
consisted of a complete walkover of the footprint area and included an evaluation of the habitats
on the property and in the surrounding area.
Field surveys were focused on sensitive biological resources, and included observations of
potential habitat for sensitive species. Sign surveyed for included nests, tracks, scat, burrows,
skeletal remains, and live animals. During the surveys, notes were made on the plant and animal
species observed, the surface characteristics and topography of the project area, and the
suitability of the habitat for the sensitive species.
Binoculars were used to aid in the identification of birds. All species identified by sight, call or
sign (burrows, scat, tracks, etc.) were recorded. Site photographs were taken with a digital
camera.
3.3 Jurisdictional Determination and Wetland Delineation
j A jurisdictional determination of the project site was conducted to ascertain the limits of
wetlands and waters subject to U. S. Army Corps of Engineers (Corps)jurisdiction under Section
404 of the Clean Water Act and California Department of Fish and Game (CDFG) under
Sections 1602 et seq. of the CDFG Code.
3.4 Regulatory Background
Special status species are native species that have been afforded special legal or management
protection because of concern for their continued existence. There are several categories of
protection at both federal and state levels, depending on the magnitude of threat to continued
existence and existing knowledge of population levels.
Federal Endangered Species Act
The U.S. Fish and Wildlife Service (USFWS) administers the federal Endangered Species Act
(FESA)that provides a process for listing species as either threatened or endangered, and
methods of protecting listed species. The FESA defines as "endangered" any plant or animal
species that is in danger of extinction throughout all or a significant portion of its range. A
i
"threatened" species is a species that is likely to become endangered in the foreseeable future. A
5
"proposed" species is one that has been officially proposed by USFWS for addition to the federal
threatened and endangered species list.
Section 9 of the FESA prohibits "take"of threatened or endangered species. The term "take"
means to harass,harm,pursue, hunt, shoot,wound, kill, trap, capture, or collect, or to attempt to
engage in such conduct. The presence of any federally threatened or endangered species that are
in a project area generally imposes severe constraints on development,particularly if
development would result in"take" of the species or its habitat. Under the regulations of the
FESA, the USFWS may authorize "take"when it is incidental to,but not the purpose of, an
otherwise lawful act.
California Endangered Species Act
The California Department of Fish and Game (CDFG) administers the California Endangered
Species Act(CESA). The State of California considers an endangered species as one whose
prospects of survival and reproduction are in immediate jeopardy. A threatened species is
considered as one present in such small numbers throughout its range that it is likely to become
an endangered species in the near future in the absence of special protection or management. A
rare species is one that is considered present in such small numbers throughout its range that it
may become endangered if its present environment worsens. State threatened and endangered
species are fully protected against take, as defined above.
Section 3503 and 3511 of California Fish and Game Code
The CDFG administers the California Fish and Game Code. There are particular sections of the
Code that are applicable to natural resource management. For example, Section 3503 of the
Code states it is unlawful to take,possess, or needlessly destroy the nest or eggs of any bird.
Section 3511 of the Code lists fully-protected bird species, where the CDFG is unable to
authorize the issuance of permits or licenses to take these species
Migratory Bird Treaty Act
The Migratory Bird Treaty Act(MBTA)makes it unlawful to pursue, capture, kill, or possess or
attempt to do the same to any migratory bird or part, nest, or egg of any such bird listed in
wildlife protection treaties between the United States, Great Britain, Mexico, Japan, and the
countries of the former Soviet Union.
6
Section 404 of the Federal Clean Water Act
Section 404 of the federal Clean Water Act, which is administered by the U.S. Army Corps of
Engineers (USACE/CORPS), regulates the discharge of dredge and fill material into waters of
the United States. USACE has established a series of nationwide permits that authorize certain
activities in waters of the United States,provided that a proposed activity can demonstrate
compliance with standard conditions. Normally, USACE requires an individual permit for an
activity that will affect an area equal to or in excess of 0.3 acre of waters of the United States.
Projects that result in impacts to less than 0.3 acre of waters of the United States can normally be
conducted pursuant to one of the nationwide permits, if consistent with the standard permit
conditions. USACE also has discretionary authority to require an Environmental Impact
Statement for projects that result in impacts to an area between 0.1 and 0.3 acre. Use of any
nationwide permit is contingent on the activities having no impacts to endangered species.
Section 1600 of the California Fish and Game Code
All diversions, obstructions, or changes to the natural flow or bed, channel, or bank of any river,
stream, or lake in California are subject to the regulatory authority of the CDFG pursuant to
Sections 1600 through 1603 of the Code, requiring preparation of a Streambed Alteration
} Agreement. Under the Code, a stream is defined as a body of water that flows at least
periodically, or intermittently, through a bed or channel having banks and supporting fish or
other aquatic life. Included are watercourses with surface or subsurface flows that support or
have supported riparian vegetation. CDFG also has jurisdiction within altered or artificial
waterways based on the value of those waterways to fish and wildlife, and also has jurisdiction
over dry washes that carry water ephemerally during storm events.
Section 401 of the Clean Water Act
Section 401 of the Clean Water Act requires that"any applicant for a federal permit for activities
that involve a discharge to waters of the State, shall provide the federal permitting agency a
certification from the State in which the discharge is proposed that states that the discharge will
comply with the applicable provisions under the federal Clean Water Act." Therefore, before the
USACE will issue a Section 404 permit, applicants must apply for and receive a Section 401
water quality certification from the Regional Water Quality Control Board(RWQCB).
7
Porter Cologne Act
The RWQCB regulates actions that would involve "discharging waste, or proposing to discharge
waste, with any region that could affect the water of the state" (water code 13260(a)), pursuant to
provisions of the State Porter-Cologne Water Quality Act. "Waters of the State" are defined as
"any surface water or groundwater, including saline waters, within the boundaries of the state"
(water code 13050 (e)).
Western Riverside County MSHCP
The MSHCP is a comprehensive, multi jurisdictional HCP focusing on conservation of species
and their associated habitats in western Riverside County. The goal of the MSHCP is to
maintain biological and ecological diversity within a rapidly urbanizing region.
The approval of the MSHCP and execution of the Implementing Agreement (IA)by the wildlife
agencies and City of Lake Elsinore allows signatories of the IA to issue "take" authorizations for
all species covered by the MSHCP, including state- and federal-listed species as well as other
identified sensitive species and/or their habitats. Each city or local jurisdiction will impose a
Development Mitigation Fee for projects within their jurisdiction. With payment of the
mitigation fee to the County and compliance with the survey requirements of the MSHCP where
required, full mitigation in compliance with the California Environmental Quality Act (CEQA),
National Environmental Policy Act(NEPA), CESA, and FESA will be granted. The
Development Mitigation Fee varies according to project size and project description. The fee for
residential development ranges from approximately$800 per unit to $1,600 per unit depending
on development density(Riverside County Ordinance 810.2). Payment of the mitigation fee and
compliance with the requirements of Section 6.0 of the MSHCP are intended to provide full
mitigation under CEQA, NEPA, CESA, and FESA for impacts to the species and habitats
covered by the MSHCP pursuant to agreements with the USFWS, the CDFG, and/or any other
appropriate participating regulatory agencies and as set forth in the IA for the MSHCP.
4.0 Results
4.1 Sensitive Biological Resources
The project site was reviewed to determine consistency with the MSHCP. The Riverside County
Integrated Project (RCIP) Conservation Summary Report Generator was queried to determine
habitat assessment and potential survey requirements for the project site. This was cross-
8
referenced to the Errata to the MSHCP to determine if there are any additional species
requirements.
The MSHCP also requires that an assessment be completed of the potentially significant effects
of the project on riparian/riverine areas, and vernal pools. According to the MSHCP, the
documentation for the assessment shall include mapping and a description of the functions and
values of the mapped areas with respect to the species listed in Section 6.1.2, Protection of
Species Associated with Riparian/Riverine Areas and Vernal Pools.
The Western Riverside County Multiple Species Habitat Conservation Plan (MSHCP) has
designated Criteria Cells that include conservation areas intended for protection of natural
resources. Based on project APN numbers entered in the County database, the proposed project
lies within the portion areas of MSHCP Criteria Cells W of the Lake Elsinore Area Plan (4060
and4067) slated for conservation or preferred for acquisition or protection by the County.
Conservation within this cell group will range from 80 to 90% of the Cell Group, focusing in the
northwestern portion.
The MSHCP database has identified:
Seven Criteria Area species as follows:Thread-leaved brodiaea (Brodiaea filifolia),
Davidson's saltscale (Atriplex serenan var. davidsonii), Parish's brittlescale (Atriplex parishii),
Smooth tarplant (Centromadia pungens ssp.laevis), Round-leaved filaree (Erodium
macrophyllum), Coulter's goldfields (Lasthenia glabrata ssp. coulteri), Little mousetail
(Mysosurus minimus).
Six Narrow Endemic plant species as follows:Munz's onion, San Diego ambrosia
(Ambrosia pumila), Slender-horned spineflower (Dodecahema leptoceras), Many-stemmed
dudleya (Dudleya multicaulis), California Orcutt grass (Orcuttia californica), Spreading
navarretia (Navarretia fossalis), San Miguel savory (Satureja chandleri), Hammitts clay-cress
(Sibara psishammittii), Wright's trichocoronis (Trichocoronis wrightii).
Appendix B contains a table of the sensitive resources identified for the project area, their habitat
requirements, seasonal distribution, legal standing and the potential for their presence or absence
on site.
4.2 Weather Conditions, Topography, and Soils
Weather conditions during the surveys included clear skies, temperatures in the low—nineties
(degrees Fahrenheit) and winds of less than 3 miles per hour.
The property is steep and hilly to the north west and flatter with a east to west gradient in the
southeastern portion on either sides of Nichols road.
9
4.3 Disturbances
On site disturbances include dirt access roads, illegal trash dumping, and major ORV use.
The property is bordered on the west by highway 15, and open space on the east, west and north.
Nichols Road bisects the southern portion of the site.
4.4 Plant Communities
Two habitat types occur on the property disturbed annual grasslands and recovering/emergent
coastal sage scrub. A detailed list of the plant species on site is given in Appendix A.
4.5 Wildlife
Wildlife activity was moderate to high, with most of the wildlife represented by bird species and
small mammals. Species observed included the San Diego horned lizard (Phrynosoma
coronatum blainvillei), the coastal western whiptail (Aspidoscelis tigris tigris) and side-blotched
lizard (Uta stansburiana). Bird species observed included the red-tailed hawk (Buteo
jamaicensis), the California quail (Callipepla californica), the western kingbird (Tyrannus
verticalis), the loggerhead shrike (Lanius ludovicianus), the grasshopper sparrow (Ammodramus
savannarum), the red-tailed hawk (Buteo jamaicensis), and kestrel (Falco sparverius). Mammal
species observed included Botta's pocket gopher (Thomomys bottae), California ground squirrel
(Spermophilus beecheyi) ), black-tailed jackrabbit (Lepus californicus), Audubon's cottontail
(Sylvilagus aubudonii), Stephens's kangaroo rat (Dipodomys stephensi), and Dulzura kangaroo
rat(Di. Simulans), and coyote (Canis latrans).
A detailed list of the animal species found on the site is given in Appendix A.
4.6 Sensitive Biological Resources
Sensitive species potentially present include those listed, or candidates for listing by the U. S.
Fish and Wildlife Service (USFWS), California Department of Fish and Game (CDFG) and
California Native Plant Society (CNPS). All sensitive species were considered as potentially
present on the project site if its known geographical distribution encompassed all or part of the
project area or if its distribution was near the site and its general habitat requirements were
present.
Following is a brief summary of the more detailed information provided in Table B for species
specifically targeted for on the project site during our surveys.
4.6.1 California Gnatcatcher
The California gnatcatcher (Polioptila californica) is a small songbird that is a year round
resident of sage scrub communities (Atwood 1980). Sage scrub communities preferred by this
species are typically dominated by low-growing, drought deciduous and succulent shrubs, as well
as sub-shrub species including California sage (Artemisia californica), California buckwheat
10
(Eriogonum fasciculatum), brittlebush (Encelia farinosa), sage species (Salvia spp.), and cacti
(Opuntia spp.).
The original range of the California gnatcatcher included all of the coastal sage scrub
communities of southern California, from Ventura County south to San Diego and on into
Mexico. This species also occurred in extensive coastal sage scrub habitat in Riverside County.
Fragmentation or removal of sage scrub plant communities has reduced the known populations to
scattered localities in Los Angeles, Orange, Riverside and San Diego counties. Even these
populations are generally found only in the larger open space areas in and around development.
The California gnatcatcher was listed by the USFWS as a threatened species pursuant to the
Federal Endangered Species Act (ESA) on March 25, 1993. The ESA prohibits anyone from
"taking" a listed species. Take includes, but is not limited to, harming, harassing or killing
individuals of a listed species as well as destruction of habitat occupied by listed species.
Project Site Findings
California gnatcatchers were previously documented on site but the 2004 wild land fires have
drastically reduced or eliminated the amount of scrub habitat and actual occupancy on the
property. No California gnatcatchers were observed on the property.
4.6.2. Stephen's Kangaroo Rat
The Stephen's kangaroo rat (Dipodomys stephensi) prefers open areas with sparse perennial
cover (Lackey 1967, Bleich 1977, Thomas 1975). They occur in areas of loose soil where the
soil depth is at least 0.5 meters (Price and Endo, 1989). The Stephen's kangaroo rat (SKR) will
also inhabit disturbed areas such as fallow fields by using the burrows of other rodents, including
pocket gophers (Thomomys bottae) (Bleich 1977) and the Beechey ground squirrel
(Spermophilus beecheyi) (O'Farrell 1989).
Like all kangaroo rats, the SKR is primarily a seed—eater, feeding on the seeds of both annual and
shrub species. It also feeds on green vegetation and insects when these are available. Being
primarily dry biome species, kangaroo rats obtain nearly all of their water from the food they eat,
and can subsist on water extracted from seeds. They forage in open ground and underneath
shrubs. Burrows are dug in loose soil.
Project Site Findinys
The Stephen's kangaroo rat occurs on portions of the property; this species is covered by the
previous SKR Habitat Conservation Plan and SKR mitigation fees have previously been paid.
4.6.3 Burrowing Owl
The burrowing owl (Athene cunicularia) is a resident species in lowland areas of southern
California (Garrett and Dunn 1980). It prefers open areas for foraging and burrowing and is
found widely distributed in open desert scrub. This species is scarce in coastal areas, being found
J mainly in agricultural and grassland habitats. The largest remaining populations are in the
Imperial Valley, where burrowing owls are common in and around the least disturbed
agricultural fields.
11
As a result of development, the burrowing owl is declining in coastal habitats. The CDFG has
designated the burrowing owl as a California Species of Special Concern (CSC). These species
are so designated because of declining population; limited ranges and/or continuing threats have
made them vulnerable to extinction CDFG (2002).
Project Site Findings
No burrowing owls or burrowing owl sign was found during the site protocol survey.
4.6.4 Vernal Pool Fairy Shrimp
Vernal pool fairy shrimp (Branchinecta lynchi) is found in grasslands ponded areas such as
vernal pools, cattle watering holes, basins, etc. Fairy shrimp are confined to temporary pools that
fill in spring and evaporate by late spring to early summer.
In southern California, this species is found primarily in the interior of western Riverside County,
central Santa Barbara County, and eastern Orange County and more recently in Los Angeles
County.
Since most pools preferred by fairy shrimp are found in flat areas, many have been lost to
agricultural activities and residential development. The limited extent of available habitat, plus
the ongoing habitat loss has resulted in the vernal pool fairy shrimp being listed as threatened by
the USFWS.
Project Site Findings
There are no identifiable vernal pools on site. However potentially suitable water ponding occurs
at several locations on the property, given the presence of non-endangered fairy shrimp in the
project vicinity it is plausible that the non-protected species could have or can establish itself in
those areas.
4.6.5 Riverside Fairy Shrimp
Riverside fairy shrimp (Streptocephalus woottoni) are known only from ephemeral pools in
farmlands and similar open, flat terrain. Fairy shrimp are confined to temporary pools that fill in
spring and evaporate by late spring to early summer.
The Riverside fairy shrimp (RSF) is known only from southern Orange and western Riverside
and San Diego Counties. Ongoing farming and development in these areas has resulted in the
loss and degradation of these pools. Therefore, the USFWS has listed the Riverside fairy shrimp
as endangered. There are no RSF noted in the scientific literature to be present in nearby areas.
1
12
Proiect Site Finding
There are no identifiable vernal pools on site. However potentially suitable water ponding can
occur at several locations on the property, given the presence of non-protected fairy shrimp in the
project vicinity it is plausible that the species could have or can establish itself in those areas.
4.6.6 Multiple Species Habitat Conservation Plan Riparian Species
In addition to the fairy shrimp, the Riverside County MSHCP region are requires project sites to
be evaluated for the presence of riparian habitat suitable to support the least Bell's vireo (Vireo
bellii pusillus), southwestern willow flycatcher (Empidonax trailld extimus), and California
yellow-billed cuckoo (Coccyzus americanus occidentalis). These bird species are typically found
in wooded riparian habitats and are not found in non-riparian habitats.
Project Site Findings
None of the MSHCP listed avian species are expected to nest or forage on site due to lack of
habitat
4.6.7 Other Sensitive Resources
Other sensitive species that were not seen but for which potential habitat exists on site are
discussed in the sensitive species table.
j 4.7 Western Riverside County Multiple Species Habitat Conservation Plan
The Western Riverside County Multiple Species Habitat Conservation Plan (MSHCP) has
designated Criteria Cells that include conservation areas intended for protection of natural
resources. Based on project APN numbers entered in the County database, the proposed project
lies within the portion areas of MSHCP Criteria Cell W of the Lake Elsinore Area Plan (4060
and 4067) slated for conservation or preferred for acquisition or protection by the County.
Conservation within this cell group ranges from 80 to 90 percent of the Cell Group. Conservation
within these cell groups is to focus on riparian scrub, woodland and forest habitat associated with
Alberhill Creek and adjacent grassland habitat.
Project Findings
The proposed project lies within the MSHCP Criteria Cell slated for conservation. However it is
separated and isolated from the core habitat by highway 15.
4.8 Drainages and Wetlands
4.8.1 Army Corps of Engineers
The Corps regulates discharges of dredged or fill material into waters of the United States. These
watersheds include wetlands and non-wetland bodies of water that meet specific criteria. The
lateral limit of Corps jurisdiction extends to the "Ordinary High Water Mark" (OHWM) and to
13
any wetland areas extending beyond the OHWM; thus, the maximum jurisdictional area is
represented by the OHWM or wetland limit, whichever is greater.
Corps regulatory jurisdiction pursuant to Section 404 of the Clean Water Act is founded on a
connection or nexus between the water body in question and interstate (waterway) commerce.
This connection may be direct; through a tributary system, linking a stream channel with
traditional navigable waters used in interstate or foreign commerce, or may be indirect, through a
nexus identified in the Corps regulations.
Project Site Findings
There are no Corps jurisdictional drainages found on the project reclamation site since Corps
jurisdictional areas are avoided and no wetlands within the project boundaries. The water flow
within the drainages located north of Nichols Road has been interrupted by the construction of a
dirt road which has altered the natural hydrology and eliminated a portion of the banks along the
drainage. Natural siltation has also contributed to the isolation of the dry wash waters on site.
Flow to the 36 inch culverts that migrate toward Alberhill/Temescal Creek currently occurs only
through sheet flow during heavier, extra-ordinary rainfall events.
Grading plans for the portion of the project located to the south of Nichols Road have been
amended so as eliminate direct impact to the jurisdictional drainages.
If the Corps claims jurisdiction, impacts to these drainages would have to be addressed under the
appropriate 404 Permit from the Corps and 401 Certification from the RWQCB.
4.8.2 California Department of Fish and Game
The California Department of Fish and Game (CDFG), through provisions of the State of
California Administrative Code, is empowered to issue agreements for any alteration of a river,
stream or lake where fish or wildlife resources may adversely be affected. Streams (and rivers)
are defined by the presence of a channel bed and banks, and at least an intermittent flow of water.
Lateral limits of jurisdiction are not clearly defined, but generally include any riparian resources
associated with a stream or lake; CDFG regulates wetland areas only to the extent that those
wetlands are part of a river, stream or lake as defined by CDFG.
Project Site Findings
The interrupted dry wash comes under the jurisdiction of CDFG.. If the state takes jurisdiction,
then minor impacts to the drainages would have to be addressed under a 1601 Agreement with
the CDFG.
4.9 Raptors, Migratory Birds, and Habitat
Most of the raptor species (eagles, hawks, falcons and owls) are experiencing population declines
because of habitat loss. Some, such as the peregrine falcon, have also experienced population
losses because of environmental toxins affecting reproductive success, animals destroyed as pests
or collected for falconry, and other direct impacts on individuals. Only a few species, such as the
red-tailed hawk and barn owl, have expanded their range in spite of or a result of human
14
modifications to the environment. As a group, raptors are of concern to state and federal
agencies.
In addition, raptors and all migratory bird species, whether listed or not, receive protection under
the Migratory Bird Treaty Act (MBTA) of 1918. The MBTA prohibits individuals to kill, take,
possess or sell any migratory bird, bird parts (including nests and eggs) except in accordance
with regulations prescribed by the Secretary of the Interior Department (16 U. S. Code 703).
Additional protection is provided to all bald and golden eagles under the Bald and Golden Eagle
Protection Act of 1940, as amended. State protection is extended to all birds of prey by the
CDFG Code, Section 2503.5. No take is allowed under these provisions except through the
approval of the agencies or their designated representatives.
Project Site Findings
Potential for raptor nesting and active foraging habitat exists within the project footprint and
adjacent areas.
Due to the potential for direct impacts to nesting raptors and migratory birds due to project
development we recommend that a pre-grading nesting bird survey be conducted if earth moving
is to occur within the nesting season (February 1 through August 31).
4.10 Habitat Fragmentation and Wildlife Movement
Wildlife movement and the fragmentation of wildlife habitat are recognized as important wildlife
issues that must be considered in assessing impacts to wildlife. In summary, habitat
fragmentation is the division or breaking up of larger habitat areas into smaller areas that may or
may not be capable of independently sustaining wildlife and plant populations. Wildlife
movement (more properly recognized as species movement) is the temporal movement of species
along various types of corridors. Wildlife corridors are especially important for connecting
fragmented wildlife habitat areas.
Project Site Findings
The project site and footprint area offer moderate to low wildlife use potential. Habitat
fragmentation has already occurred in the project vicinity as a result of highway and road
construction and nearby mining operations. No major corridors could be identified through the
site.
5.0 Discussion
No burrowing owls or sign of burrowing owls was detected on site. However due to the presence
of suitable but currently unoccupied habitat a pre construction clearance survey for BO will have
to be conducted within one month of grading activities.
15
Impacts will occur to the Stephen's kangaroo rat. SKR are covered under an existing HCP.
No California gnatcatcher will be affected due to project implementation since it's habitat has
been eliminated.
Impacts will occur to the horned lizard, coastal whiptail, and loggerhead shrike due to project
implementation. These species are not currently protected by the Endangered Species Act.
There will be no impacts to fairy shrimp due to the non-presence of vernal pools on site and the
lack of adequate habitat for the protected RFS.
No impacts to Criteria Area or Narrow Endemic plant species will occur due to project
implementation.
Limited impact to grasslands associated bird specie's foraging habitat will occur due to project
implementation. These impacts are not considered significant.
Potential for raptor and migratory bird nesting and active foraging habitat exists within the
project footprint and adjacent areas. Due to the potential for direct impacts to nesting raptors and
migratory birds due to project development we recommend that a pre-grading nesting bird survey
be conducted if earth moving is to occur within the nesting season (February 1 through August
31).
1 Based on project APN numbers entered in the County database, the proposed project lies within
the portion areas of MSHCP Criteria Cell W of the Lake Elsinore Area Plan (4060 and 4067)
slated for conservation or preferred for acquisition or protection by the County. Conservation
within this cell group ranges from 80 to 90 percent of the Cell Group. Conservation within these
cell groups is to focus on riparian scrub, woodland and forest habitat associated with Alberhill
Creek and adjacent grassland habitat. The project site is not subject to the provisions of the
MSHCP.
The proposed project lies within the MSHCP Criteria Cell slated for conservation. However it is
separated and isolated from the core habitat by highway 15. The project site is not subject to the
provisions of the MSHCP.
Impacts to other sensitive species potentially present on site are not expected to be significant
due to one or more of the following factors: 1)No suitable habitat exists on site; or, 2) The use of
the site is limited to occasional or seasonal visits and the site does not encompass a substantial
portion of their range.
16
6.0 References
Atwood, J. L. 1990. Status Review of the California Gnatcatcher (Polioptila califomica).
Unpublished technical report, Manomet Bird Observatory, Manomet, MA. 79 pp.
Bleich, V. C., 1977.Dipodomys stephensi. Mammalian Species No. 73,pp. 1-3.
Burt, W. H., 1986. A Field Guide to the Mammals in North American North of Mexico.
Houghton Mifflin Company, Boston, Massachusetts.
California Department of Fish and Game (CDFG), 2004. Special Animals. The Resources
Agency, Department of Fish and Game, Sacramento, California.
Garrett, K. and J. Dunn, 1981. Birds of Southern California. Los Angeles Audubon Society. The
Artisan Press, Los Angeles, California.
Grenfell, W. E., M. D. Parisi, and D. McGriff, 2003. Check-list of the Amphibians, Reptiles,
Birds and Mammals of California. California Wildlife Habitat Relationship System,
California Department of Fish and Game, Sacramento, California.
Grinnell, J., 1933. Review of the Recent Mammal Fauna of California. University of California
Publications in Zoology. 40: 71-234.
Hall, E. R., 1981. The Mammals of North America, Volumes I and II. John Wiley and Sons,New
York, New York.
Hickman, J. C., ed. 1993. The Jepson Manual: Higher Plants of California. University of
California Press.
Ingles, L. G., 1965. Mammals of the Pacific States. Stanford University Press, Stanford,
California.
Munz, P.A., 1974. A Flora of Southern California. University of California Press, Berkeley,
California.
O)EFarrell, M. J. and C. Uptain, 1989. Assessment of Population and Habitat Status of the
Stephen's kangaroo rat (Dipodomys stephensi). The Resources Agency, Sacramento,
California.
Price, M. V. and P. R. Endo, 1989. Estimating the Distribution and Abundance of a Cryptic
Species, Dipodomys stephensi (Rodentia: Heteromyidae) and Implications for
Management. Conservation Biology 3: 293-301.
Remsen, Jr., J. V., 1978. Bird Species of Special Concern in California. Non-game Wildlife
Investigations. Wildlife Management Branch Administrative Report No 78-1. Report
prepared for the California Department of Fish and Game.
J
17
Soil Conservation Service, 1971. Soil Survey of Western Riverside Area, California. U. S.
Government Printing Office, Washington, D. C.
Stebbins, R. C., 1985. A Field Guide to Western Reptiles and Amphibians. Houghton Mifflin
Company, Boston.
The Burrowing Owl Consortium, 1993. Burrowing Owl Survey Protocol and Mitigation
Guidelines. Prepared for the California Department of Fish and Game.
Thomas, J. R. 1975. Distribution, population densities and home range requirements of the
Stephen's kangaroo rat (Dipodomys stephensi). Master-'Es thesis, California State
Polytechnic University, Pomona, California.
Tibor, D. P., ed, 2001. Inventory of Rare and Endangered Vascular Plants of California.
California Native Plant Society, Spec. Pub. No. 1. 6th edition. Berkeley, California.
U. S. Fish and Wildlife Service (USFWS), 1996. Review of plant and animal taxa for listing as
endangered or threatened species; notice of review. Federal Register Vol. 61,No. 40.
Williams, D. F., 1986. Mammalian Species of Special Concern in California. Wildlife
Management Division Administrative Report 86-1. Prepared for The Resources Agency,
California Department of Fish and Game.
18
Appendix A-Floral and Faunal Compendium
* denotes non-native species
ANGIOSPERMAE: DICOTYLEDONES DICOT FLOWERING PLANTS
Anacardiaceae Sumac family
Malosma laurina Laurel sumac
Rhus trilobata Squaw bush
Apiaceae Carrot family
*Foeniculum vulgare Sweet fennel
Lomatium utriculatum Cow-parsnip
Asteraceae Sunflower family
Ambrosia artemisifolia Common ragweed
Ambrosia dumosa Burrobush
Ambrosia psilostachya Western ragweed
Baccharis salicifolia Mulefat
Gutierrezia californica California matchweed
Helianthus annuus Annual sunflower
Hemizonia fasciculata Fascicled tarweed
Heterotheca grandiflora Telegraph weed
Layia platglossa Tidy tips
Boraginaceae Borage family
Amsinckia menziesii Fiddleneck
Cryptantha intermedia Popcorn flower
Brassicaceae Mustard family
*Hirschfeldia incana Short-podded mustard
*Lepidium perfoliatum Weedy peppergrass
*Sisymbrium irio London rocket
Cucurbitaceae Gourd family
Cucurbita palmata Coyote melon
Euphorbiaceae Spurge family
Croton californica Croton
Eremocarpus setigerus Doveweed
j Euphorbia nutans Spurge
19
Fabaceae Pea family
Astragalus pomonensis Locoweed
Lotus scoparius Deer weed
Lotus strigosus String-stemmed lotus
Lupinus bicolor Miniature lupine
Geraniaceae Geranium family
*Erodium cicutarium Red-stemmed filaree
Hydrophyllaceae Waterleaf family
Phacelia minor Canterbury bells
Lamiaceae Mint family
Salvia mellifera Black sage
Papaveraceae Poppy family
Eschscholzia sp. Poppy
Polygonaceae Buckwheat family
Eriogonum fasciculatum California buckwheat
Eriogonum gracile Graceful buckwheat
Scrophulariaceae Snapdragon family
Mimulus cardinalis Red monkeyflower
ANGIOSPERMAE: MONOCOTYLEDONAE MONOCOT FLOWERING PLANTS
Liliaceae Lily family
Allium sp. Onion
Poaceae Grass family
*Avena barbata Slender wild oats
Bromus ciliatus Fringed brome
*Bromus diandrus Ripgut brome
*Bromus madritensis Red brome
*Bromus mollis Soft chess
*Cynodon dactylon Bermuda grass
Distichlis spicata Saltgrass
*Hordeum murinum Wild barley
i
*Schismus barbatus Mediterranean grass
Taxonomy and nomenclature follow Hickman 1993 and Munz 1974.
20
21
Biological Resources Assessment
APN#389-200-02310241015
Lake Elsinore, Riverside Co.
FAUNA
REPTILIA REPTILES
Iguanidae Iguanas and their allies
Sceloporus occidentalis Western fence lizard
Uta stansburiana Side-blotched lizard
Phrynosoma coronatum blainvillei San Diego horned lizard
Teiidae Whiptails and their allies
Cnemidophorus tigris multiscutatus Coastal whiptail
Colubridae Colubrids
Masticophis flagellum Coachwhip
AVES BIRDS
Cathartidae Vultures
Cathartes aura Turkey vulture
Accipitridae Kites, hawks and eagles
Elanus leucurus White-tailed kite
Buteo jamaicensis Red-tailed hawk
Falconidae Caracaras and falcons
Falco sparverius American kestrel
Phasianidae Quails and pheasants
Callipepla californica California quail
Columbidae Pigeons and doves
Zenaida macroura Mourning dove
Camprimulgidae Goatsuckers
Chordeiles acutipennis Lesser nighthawk
Cuculidae Typical cuckoos
Geococcyx californianus Greater roadrunner
I
Trochlidae Hummingbirds
Calypte anna AnnaES hummingbird
Tyrannidae Tyrant flycatchers
Tyrannus verticaulis Western kingbird
Alaudidae Larks
Eremophila alpestris Horned lark
Corvidae Crows and ravens
Aphelocoma californica Western scrub jay
Corvus corax Common raven
Mimidae Mimic thrushes
Mimus polyglottos Northern mockingbird
Lanidae Shrikes
Lanius ludovicianus Loggerhead shrike
Emberizidae Warblers, sparrows, blackbirds and relatives
Ammodramus savannarum Grasshopper sparrow
Zonotrichia leucophyrs White-crowned sparrow
Fringillidae Finches
Carduelis psaltria Lesser goldfinch
MAMMALIA MAMMALS
Leporidae Rabbits and hares
Sylvilagus audubonii Audubon/Es cottontail
Lepus californicus Black-tailed jackrabbit
Sciuridae Squirrels, chipmunks and marmots
Spermophilus beecheyi California ground squirrel
Geomyidae Pocket gophers
Thomomys bottae BottalEs pocket gopher
Heteromyidae Pocket mice and kangaroo rats
Dipodomys simulans Dulzura kangaroo rat
Dipodomys stephensi Stephens kangaroo rat
Cricetidae Cricetine mice and rats
Peromyscus maniculatus Deer mouse
Peromyscus boylii Brush mouse
Neotoma sp. Woodrat
23
Canidae Foxes,wolves and relatives
Canis latrans Coyote
Mustelidae Weasels and relatives
Mustela frenata Long-tailed weasel
Mephitis mephitis Striped skunk
Nomenclature follows Garth&Tilden 1986, Hall 1981, Laudenslayer et al. 1991, and Stebbins
1966.
24
Appendix B - Sensitive Biological Resources
Table 1.
Sensitive Biological Resources—Nichols Mining
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probability
Plants
Chaparral sand- Annual. Coastal sage March-August FED: ND None. Sandy places
verbena scrub, chaparral. From the STATE: ND on the property are
Abronia villosa var. head of the Coachella CNPS: 1B limited. Species not
aurita Valley to interior observed.
Riverside, Orange and
San Diego counties.
Sandy places below 5000
feet.
San Diego thorn- Annual. Chaparral, April-May FED: THR None.No suitable
mint coastal sage scrub,valley STATE: END clay soils present on
Acanthomintha and foothill grasslands, CNPS: 2 site.
ilicifolia vernal pools.Found on
active vertisol clay soils
of mesas and valleys,
usually on clay lenses
within the grassland and
scrub communities.
Southwest San Diego
County and adjacent Baja
California.
Munz's onion On clay soils in openings Mar -May FED: END Low.Not observed in
Allium munzii within coastal sage scrub, Flowering STATE: THR prior spring surveys.
pinyon juniper woodland, period CNPS: 1B Limited suitable
and grasslands; 900 to undisturbed clay soils
3000 ft. elevation. present on site.
Known only from w.
Riverside Co. in
Temescal Canyon. and
25
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probability
Gavilan Plateau areas.
San Diego ambrosia Chaparral, coastal sage June - Sep FED: C2* None.Was not
Ambrosia pumila scrub,valley and foothill STATE:ND observed during
grassland,and vernal CNPS: 1B survey.
pools. Sandy loam or clay
soils. In valleys,persists
where disturbance is
superficial. 100 to 600 ft
elevation.Riverside and
San Diego County.
Jaege's milk-vetch Perennial from woody March to July FED: ND None.No suitable
Astragalus pachypus caudex. On open sandy Flowering STATE:ND habitat.
var.jaegeri slopes,dry ridges and period CNPS: 1B
valleys. Often in valley
and foothill grassland and
oak chaparral.Also in
coastal sage scrub,
chaparral,cismontane
woodland.Below 2500
feet.Banning to Aguanga
and Temecula.
Annual.Alkaline valleys May to FED:ND None.Not observed.
Davidson's saltscale in low elevations.Valley October STATE:ND
Atriplex serenan grasslands,coastal sage CNPS: 1B
var. davidsonii scrub, etc. The variety
davidsonii is limited to
Los Angeles to Balboa
and Laguna Beach areas.
Paris's brittlescale Alkali flats largely in June-Oct FED: C2* None.No suitable
Atriplex parishii valley or annual STATE:ND habitat on site.Not
grassland. From CNPS: 1B observed.
cismontane California to
the edge of the desert,
extending into the Central
Valley
Thread-leaved Clay soils; open April -June FED: THR None.No suitable
brodiaea grasslands at edges of STATE: END clay soils or vernal
Brodiaea filifolia vernal pools or CNPS: 1B pools on site.
floodplains. Sea level to
2500 ft. elevation. Los
Angeles, Orange,
Riverside,and San Diego
Counties. Known from
ca. 20 locations.
Intermediate Dry,rocky,open slopes, June-July FED: C2* Low. Suitable dry
mariposa lily often in chaparral, coastal STATE:ND rocky slopes are
Calochortus weedii sage scrub,valley& CNPS: 1B present within
j var. intermedius foothill grassland below footprint area.Not
2000 ft. elevation. Los observed during
Angeles, Orange, and survey.
26
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probabilit
Riverside Counties.
Southern tarplant Often in disturbed sites June- FED:ND None.Not observed.
Centromadia parryi near the coast.Also found September STATE:ND
spp. australis on alkaline soils at the CNPS: 1B
edges of marshes and
swamps.Found in valley
and foothill grasslands,
and sometimes along
vernal pool margins.
Southern California and
Baja California.
Smooth tarplant Often in disturbed sites April- FED: C2* None.Not observed
Centromadia near the coast.Also found September STATE:ND
pungens ssp. laevis on alkaline soils at the CNPS: 1B
edges of marshes,
swamps,playas and
chenopod scrub. Found in
riparian areas,valley and
foothill grasslands, and
sometimes along vernal
pool margins. Southern
California and Baja
California.
OrcuttlEs Annual. Coastal sage March-April FED: END None.No suitable
spineflower scrub,chaparral,closed- STATE: END scrub or wooded
Chorizanthe cone coniferous forest. CNPS: 1B habitat on site.
orcuttiana Sandy sites and openings
within plant communities.
San Diego County.
Parry's spineflower Sandy openings in coastal April-June FED: C2* Low. Marginally
Chorizanthe parryi sage scrub and chaparral, flowering STATE:ND suitable habitat.Not
var.parryi 900 to 3500 ft.Elevation, period CNPS: 3 observed.
east Los Angeles Co.to
San Gorgonio Pass and
west Riverside Co.
Long-spined Dry places below 5000 Not FED: ND Low.Marginally
spineflower feet; chaparral,coastal documented STATE:ND suitable habitat.Not
Chorizanthe sage scrub,meadows, CNPS: 1B observed.
polygonoides var. valley and foothill
longispina grassland. West
Riverside and San Diego
counties.
Slender-horned Sandy and gravelly soils Apr-Jun FED: END Low.Marginally
spineflower on alluvial fans and old STATE: END suitable habitat.Not
Dodecahema floodplains; 500 to 2000 CNPS: 1B observed.
leptoceras ft. elevation. Los
Angeles,Riverside, and
San Bernardino Counties.
Many-stemmed Annual.In heavy, often May-June FED: C2* None.Not observed.
dudleya clayey soils or grassy STATE:ND
27
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probability
Dudleya multicaulis slopes in chaparral, CNPS: 1B
coastal sage scrub,valley
and foothill grassland.
Riverside, San
Bernardino, Orange
counties.Below 2000
feet.
Round-leaved Annual. Open places Mar-May FED: ND None.Not observed
filaree below 3500 feet. On clay flowering STATE:ND on site.
Erodium soils in Los Angeles period CNPS: 2
macrophyllum County and north. Santa
Cruz Island. Also near
San Diego. Found near
Lake Skinner in Riverside
County.
San Diego button Vernal pools. Riverside April -June FED: END None.No vernal pools
celery and San Diego Counties, STATE: END present .
Eryngium and Baja Calif.; sea level CNPS: 1B
aristulatum var. to 3000 ft. elevation.
parishii
Palmer's Chaparral, coastal scrub, March-April FED: C2* None. Site to
grapplinghook valley&foothill STATE:ND disturbed for species
Harpagonella grassland in clay soils on CNPS: 2 to occur.
palmeri dry slopes &mesas below
1500 ft. elevation.
Cismontane s. Calif. from
Los Angeles Co. to NW
Baja Calif., including
Santa Catalina Island.
One population at Dana
Point Headlands.
Coulter's goldfields Coastal salt marshes, Feb -Jun FED: C2* Low. Marginally
Lasthenia glabrata alkali playas,valley& STATE:ND suitable habitat on
ssp. coulteri foothill grasslands, and CNPS: 1B site.Not observed.
vernal pools below 3000
ft. elevation. Inland so.
Calif. and along coast
from San Luis Obispo Co.
to Baja Calif.
Robinson's pepper- Annual. Chaparral and Jan-April FED: ND None.No suitable
grass coastal sage scrub STATE:ND habitat.
Lepidium habitats,primarily on dry CNPS: 1B
vriginicum ssp. soils. From Los Angeles
robinsond County south to Baja
California.
San Diego Perennial, annual growth May FED:ND None.No vernal pool
goldenstar from corm. Mesa STATE:ND habitats present. Clay
Muilla clevelandii grasslands scrub edges on CNPS: 1B soils to disturbed for
clay soils. Also found on species to occur.
raised mounds between
28
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probabilitv
vernal pools. Chaparral,
coastal sage scrub,valley
and foothill grasslands.
San Diego and Baja
California.Possibly also
Riverside County.
Little mousetail Vernal pools and alkaline April -May FED: C2* None.No vernal pools
Mysosurus minimus marshes below 1500 feet. STATE: ND or alkaline marshes
San Diego to west CNPS: 3 present.
Riverside County.
Spreading Vernal pools, ditches, 30 Not FED: THR None.No vernal pools
nvarretia to 1300 meters. documented STATE:ND or other suitable
Navarretia fossalis CNPS: 1B habitat areas are
present.
Prostrate nvarretia Vernal pools,Alkali flats, Not FED: THR None.No vernal pools
Navarretia Santa rosa Plateua documented STATE: ND or suitable habitat on
prostrada CNPS: IB site
California orcutt Vernal pools, drying mud April -August FED: END None.No vernal pools
grass flats,vernally mesic STATE: END or suitable habitat on
Orcuttia californica grasslands. Ventura Co. CNPS: 1B site Not observed.
to n.Baja Calif,
including west Riverside
Co.
San Miguel savory Rocky canyons below March-May FED:ND Low.Limited rocky
Satureja chandleri 2500 feet elevation; STATE: ND canyons present on
chaparral. Santa Ana CNPS: 4 site.Not observed
Mountains near Murrieta during spring surveys.
and San Miguel and San
Jamul Mtns. in San Diego
County.
Hammitts clay-crest Chaparral openings, March to April FED: THR None. Clay soils on
Sibaropsis valley and foothill STATE:ND site to disturbed for
hammittii grasslands CNPS: 1B species to occur.
Salt spring Alkaline,usually wet April to June FED: ND None.No alkaline or
checkerbloom places. Coastal sage STATE:ND suitable wet places
Sidalcea scrub, chaparral, creosote CNPS: 2 present on site.
neomexicana bush scrub. Los Angeles,
Orange, San Bernardino,
Riverside Counties.
Wrigh's Annual plant found on May- FED:ND None.No suitable
trichocoronis mudflats and shores. At September STATE:ND habitat on site.
Trichocoronis Mystic Lake in Riverside CNPS: 2
wrightii Count and occasionally in
the Central Valley. Also
found in south Texas and
northern Mexico.
Amphibians
I California tiger Temporary rain pools and Breeds Dec- FED: C Not sure why this
salamander permanent waters of February STATE: CSC species was included
Ambystoma grassland and open by the CNDDB. No
29
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probabili
californiense woodland of low hills and populations known
valleys of central CA. from this part of
Agriculture and urban California.No
development have suitable habitat
impacted the species in present on site.
the Central Valley.
Western spadefoot Grasslands and October-April FED:ND Low.Not observed
Scaphiopus occasionally hardwood (following STATE: CSC but suitable habitat on
hammondii woodlands; largely onset of winter site.
terrestrial but for rains)
breeding,requires rain
pools or other ponded
water for 3+weeks;
burrows in loose soils
during dry season;
Central Valley and
foothills,coast ranges,
inland valleys,to Baja
Calif.
Arroyo Washes and arroyos with Mar-Jul FED: END None. No suitable
southwestern toad open water; sand or STATE: CSC washes or arroyos
Bufo microscaphus gravel beds; for breeding, present on site. Soils
californicus pools with sparse over- not sandy.
` story vegetation. Coastal
and a few desert streams
from Santa Barbara Co.to
Baja Calif.
California red- Streams with slow- Dec -Apr FED: THR None. Not known to
legged frog moving water and deep STATE: CSC occur in vicinity.
Rana aurora pools; dense, shrubby
draytonii riparian vegetation at pool
edges. Coastal streams
from Marin Co.to
Ventura Co.;between
Ventura Co. and Mexican
border,known from only
four small populations
including Santa Rosa
Plateau(Riverside Co.).
Reptiles
San Diego horned Wide variety of habitats April -July FED: ND Present. Observed on
lizard including coastal sage (with reduced STATE: CSC site.
Phrynosoma scrub, grassland,riparian activity Aug. -
coronatum woodland; typically on or Oct.)
blainvillei near loose sandy soils;
coastal and inland areas
from Ventura Co.to Baja
Calif.
Coronado skink Early successional stages Active year FED:ND Low. Could occur on
Eumeces or open areas in round STATE: CSC or near site.
30
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probabilitv
skiltonianus grassland, chaparral,
interparietalis pinyon juniper and
juniper sage woodland,
pine oak and pine forests
in the coastal ranges of
southern California.Also
found in rocky areas close
to streams, and on dry
hillsides.
Orange-throated Floodplains and terraces March-July FED:ND Low.Not observed
whiptail with perennial plants and (with reduced STATE: CSC but likely to occur on
Cnemidophorus open areas nearby; sea activity Aug. - site
hyperythrus level to 3000 feet Feb.)
elevation; inland and
coastal valleys of
Riverside, Orange,and
San Diego Counties.to
Baja Calif.
Coastal western Firm, sandy or rocky soils Year round FED:ND Present. Observed in
whiptail in deserts and semiarid STATE:ND scrub on site.
Cnemidophorus areas with sparse
tigris multiscutatus vegetation and open
areas.Also found in
woodland and riparian
areas.
Rosy boa Mix brushy cover and Year round FED:ND Low.Not observed
Lichanura rocky soils. Desert and STATE:ND but suitable habitat
trivirgata chaparral, found from the occurs on site.
coast to the Mojave and
Colorado deserts. Prefers
moderate to dense
vegetation.
Northern red- Occurs in rocky areas and Year round FED:ND Low.Not observed
diamond rattlesnake dense vegetation.Needs STATE: CSC but suitable habitat
Crotalus exsul rodent burrows, cracks in occurs on site.
rocks, or other surface
material. Chaparral,
woodland, grassland and
desert areas. Coastal San
Diego County to the
eastern slopes of the
mountains.
Birds
White-tailed kite Open country in South Year-round FED:ND Low. Observed
Elanus leucurus America and southern STATE:ND foraging near project
North America. (nesting) site.
Bald eagle Winters locally at deep Nov-Feb FED: END Low. Species is
I Haliaeetus lakes and reservoirs STATE: END known to winter at
leucocephalus feeding on fish and Lake Perris and
waterfowl. Locally rare possibly Lake
31
Resource Habitat And Activity Status Occurrence
Distribution Period Designation r Probability
throughout North Skinner; during
America. winter.
Northern harrier Grassland and marshy Year round FED:ND Moderate. Not
Circus cyaneus habitats in Southern STATE: CSC observed during the
California. Uncommonly surveys. Forages
in open desert and over a wide range of
brushlands. open habitat and can
be expected to occur
throughout most of
Southern California.
Sharp-shinned hawk Nests in woodland, Fall&winter; FED:ND Moderate. Not
Accipiter striatus coniferous deciduous scarce in STATE: CSC observed during the
forest. Winter visitor and summers surveys,but are
migrant to coastal expected to forage
Southern California. infrequently over the
Forages over a variety of property during
habitats. migration and in
winter.
Cooper's hawk Woodland and semi-open Year round; FED:ND Moderate. Not
Accipiter cooperi habitats,riparian groves predominant in STATE: CSC observed during the
and mountain canyons. summer surveys,but are
Uncommon permanent expected to forage
resident in coastal, infrequently over the
mountains,and deserts of property during
Southern California. migration and in
Transients fairly common winter.
on coast in fall.
Golden eagle Grasslands,brushlands, Year round FED:ND Present. Species has
Aquila chrysaetos deserts, oak savannas, diurnal STATE: CSC been documented
open coniferous forests (nesting and flying over but not
and montane valleys. wintering) foraging on-site but
Nesting primarily in not observed as part
rugged mountainous of 2004 survey.
country. Uncommon
resident in Southern
California.
Feruginous hawk Fairly common in winter Winter FED: C2* Low.Foraging
Buteo regalis in open grassland and STATE: CSC habitat is present.
agricultural regions in the
interior,as well as some
valleys along the coast.
Rare and uncommon
along the coast and in the
desert.
Merlin Frequents several habitats Fall&winter FED: ND Low. Not observed
Falco columbarius including coastal sage STATE: CSC during the surveys.
scrub and annual Can be expected to
grassland. Forages along forage over the site
the coast,and in montane during migration and
valleys and open deserts in winter.
32
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probability
with scattered clumps of
trees. Rare fall migrant
and winter visitor to
Southern California.
American peregrine Wetlands near high cliffs; Fall &Winter FED:ND Low. Species passes
falcon few known to nest in (in migration STATE: END through region
Falco peregrinus urban settings on tall and as winter during migration and
anatum buildings. Scattered visitor) may winter in region;
locations in North during migration or
America; in California winter, could forage
coastal areas and inland on site
mountains.
Prairie falcon Nest in cliffs or rocky Year round FED:ND Low. Not observed
Falco mexicanus outcrops; forage in open diurnal STATE: CSC during the surveys.
and valleys,agricultural Foraging habitat
fields. Throughout the exists for this species
desert and and interior over the property,
portions of coastal but there is no
counties. Uncommon suitable nesting
resident in Southern habitat.
California.
Burrowing owl Grasslands and Year round FED: ND Not present. No
Athene cunicularia rangelands,usually STATE: CSC burrows were
hypugea occupying ground squirrel observed on site.
burrows. Resident over This species could
most of Southern forage on site.
California. Found in
agricultural areas.
Long-eared owl Rare resident in coastal Nocturnal year FED: ND Low. Foraging
Asio otus Southern California and round STATE: CSC habitat exists on the
uncommon resident in property.
desert areas. Dense
willow-riparian woodland
and oak woodland.
Breeds from valley
foothill hardwood up to
ponderosa pine habitat.
Short-eared owl Primarily a rare and local Fall-Winter FED:ND Low. Available
Asio flammenus winter visitant to the STATE: CSC information states
coast,and a rare fall that short-eared owls
transient and winter are rare fall
visitant in the desert, transients in the
including the Salton Sea therefore,may forage
and the Colorado River. on the property.
Also recorded at Mystic
Lake in the San Jacinto
Valley,Riverside County,
in summer 1992,and
Harper Dry Lake, San
Bernardino County,
33
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probability
i summer 1993.
VauxlEs swift Fairly common spring and Fall -Spring FED: ND Low.May fly over the
Chaetura vauxi fall transient in southern STATE: CSC site during migration.
California. Rare and No suitable nesting
irregular winter visitor habitats on site.
primarily along coast.
Nesting sites need
protection.
Bank swallow Nesting habitat is vertical Variable year FED:ND Low. No suitable
Riparia riparia banks of fine textured round STATE: THR nesting habitat
soils,most commonly occurs within the
along streams and rivers. property limits.
In Southern California, Foraging habitat on
fairly common spring and site.May be transient
fall transient in interior; in migration.
very uncommon spring
transient and rare fall
transient along coast.
Casual in winter.
Coastal cactus wren Tall Opuntia required for Year round FED:ND None.No Opuntia
Campylorhynchus nesting and roosting. STATE: CSC present on site.
brunneicapillus Coastal sage scrub.
couesi Southern California.
California Coastal sage scrub; Year-round FED: THR Observed in previous
gnatcatcher occurs only in cismontane STATE:ND surveys.Most of
Polioptila Southern California and habitat burned in 2004
californica northwestern Baja fire.Not observed in
California in low-lying 2004 surveys.
foothills and valleys.
Loggerhead shrike Open fields with scattered Year round FED:ND Present Observed in
Lanius ludovicianus trees,open woodland, STATE: CSC past and current
scrub. Fairly common survey.
resident throughout
Southern California.
Southern California Fairly common resident Year round FED:ND High.Not observed
rufous-crowned along the coast of STATE: CSC but suitable habitat
sparrow California;breeds very occurs on site.
Aimophila ruficeps locally on desert
canescens mountain ranges.
Preferred habitat is slopes
with sparse shrubs and
open grassy areas
intermixed. Coastal sage
scrub is the most common
plant community used.
Mammals
California leaf- In California,these bats Year round FED: ND Low. Because there
nosed bat primarily occupy low- nocturnal STATE: CSC are no roost sites in
Macrotus lying desert areas,where the property limits
californicus they roost in caves, this species does not
34
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probability
11
mines,and old buildings. roost on the property.
Historic records extend However,it may
west to near Chatsworth, forage over the
Los Angeles County,but property if there are
most populations from the roosting sites such as
California coastal basins caves in the nearby
are believed to have mountains.
disappeared. Occurs from
northern Nevada,
Southern California, and
western Arizona south to
southern Baja California
and Sonora.
Townsend's western Requires caves,mines, Year round FED:ND Low. Because there
big-eared bat tunnels,buildings or other Nocturnal STATE: CSC are no suitable roost
Plecotus similar structures for sites in the property
townsendii,two ssp. roosting. May use limits,this species
separate sites for night, does not roost on the
day,hibernation or property.However,it
maternity roosts. Found may forage over the
in all but subalpine and property if there are
alpine habitats throughout roosting sites such as
California. caves in the nearby
mountains.
Pallid bat Day roosts in caves, Spring, FED:ND Low. Limited
Antrozous pallidus crevices,mines, and Summer,Fall STATE: CSC suitable roost sites in
occasionally hollow trees Nocturnal the property limits.
and buildings. Night Hibernates in This species may
roosts may be more open Winters forage over the
sites, such as porches and property if there are
open buildings. roosting sites such as
Hibernation sites are caves in the nearby
probably rock crevices. mountains.
Grasslands, shrublands,
woodlands and forest
from sea level through to
mixed conifer.
Throughout Southern
California.
Spotted bat Found in the western Spring, FED:ND Low. Because there
Euderma North America from Summer,Fall STATE: CSC are no suitable roost
maculatum southern British Nocturnal sites in the property
Columbia to the Mexican Hibernates in limits,this species
border,at a small number Winters does not roost on the
of widely scattered property.However, it
localities.Habitats range may forage over the
from and deserts and property if there are
grasslands through mixed roosting sites such as
conifer forest up to caves in the nearby
10,600 feet in elevation. mountains.
35
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probability
Prefers rock crevices in
cliffs, also uses caves and
buildings.
California mastiff Historically from north- FED:ND Low. Because there
bat central California south to STATE: CSC are no suitable roost
Eumops perotis northern Baja California, sites in the property
californicus eastward across the limits,this species
southwestern United does not roost on the
States,and northwestern property.However, it
Mexico to west Texas and may forage over the
Coahuila(Hall, 1981; property if there are
Williams, 1986). In roosting sites such as
California,most records caves in the nearby
are from rocky areas at mountains.
low elevations where
roosting occurs primarily
in crevices.
Pocketed free-tailed Spotty distribution in Warmer FED:ND Low. Because there
bat California,ranging from months. STATE: CSC are no suitable roost
Nyctinomops Southern California south Nocturnal sites in the property
femorasacca to the Baja Peninsula, and limits,this species
through southwestern does not roost on the
Arizona to at least central property.However, it
Mexico(Williams, 1986). may forage over the
? In California,pocketed property if there are
free-tailed bats are roosting sites such as
typically found in rocky, caves in the nearby
desert areas with mountains.
relatively high cliffs.
Big free-tailed bat Found from northern Nocturnal FED:ND Low. Because there
Nyctinomops South America and the spring-fall STATE: CSC are no suitable roost
macrotis Caribbean Islands Hibernates in sites in the property
northward to the western Winters limits,this species
United States(Williams, does not roost on the
1986).In the property.However, it
southwestern U.S., may forage over the
populations appear to be property if there are
scattered. Known roosting sites such as
breeding localities are in caves in the nearby
parts of Arizona,New mountains.
Mexico,and Texas.
Prefers rocky,rugged
terrain.Roosts in crevices
in high cliffs or rocky
outcrops.Ranges up to
8000 feet in elevation.
San Diego black- Variety of habitats Year round, FED:ND Present. Observed on
tailed jackrabbit including herbaceous and diurnal and STATE: CSC site.
Lepus californicus desert scrub areas,early crepuscular
bennettii stages of open forest and activity
36
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probability
chaparral.Most common
in relatively open
habitats. Restricted to the
cismontane areas of
Southern California,
extending from the coast
to the Santa Monica, San
Gabriel, San Bernardino
and Santa Rosa mountain
ranges.
Los Angeles pocket Prefers sandy soil for Nocturnal; FED:ND Low.Marginally
mouse burrowing,but has been active late STATE: CSC suitable habitat on
Perognathus found on gravel washes spring to early site.
longimembris and stony soils. Found in fall.
brevinasus coastal scrub and alluvial
fan scrub. Los Angeles,
Riverside, and San
Bernardino Counties.
Northwestern San Sandy herbaceous areas, Nocturnal; FED:ND High.Most likely
Diego pocket mouse usually with rocks or active year STATE: CSC present.
Chaetodipus fallax coarse gravel. Arid round.
fallax coastal areas in grassland,
coastal scrub and
chaparral. San Diego,
San Bernardino,Los
Angeles,and Riverside
Counties.
Stephen's kangaroo Open areas with sparse Nocturnal; FED: END Present.Documented
rat perennial cover with areas active year STATE: THR on site.
Dipodomys of loose soil where the round
stephensi soil depth is at least 0.5
meters.Also inhabit
disturbed areas such as
fallow fields by using the
burrows of other rodents,
including pocket gophers
and Beechey ground
squirrel.
San Diego desert Moderate to dense Nocturnal; FED:ND High. Good habitat
woodrat canopies,particularly in active year STATE: CSC and woodrat sign on
Neotoma lepida rocky areas. Coastal sage round property.
intermedia scrub and chaparral.
Coastal southern
California.
Invertebrates
Vernal pool fairy Grasslands and ponded Spring FED: THR Potential.No vernal
shrimp areas such as vernal STATE:ND pools but water
Branchineeta lynchi pools, cattle watering ponding present on
holes,basins, etc. In site.
37
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probabilitv
Southern California,
species found primarily in
the interior of western
Riverside Co.,central
Santa Barbara Co.,and
eastern Orange Co. Also,
more recently discovered
in Los Angeles Co.
Riverside fairy Spring FED: END
shrimp Known only from STATE:ND Potential.No vernal
Streptocephalus pools but water
ephemeral pools in
woottoni southern Orange and ponding present on
western Riverside and San site. No fairy shrimp
Diego Counties. noted on-site or
nearby. No suitable
habitat occurs on-site
for RSF.
Quino checkerspot Open grassy sites on Spring FED: END Low. Host species not
butterfly grasslands and in open STATE:ND documented on site.
Euphydryas editha areas in coastal sage
quino scrub. Areas must
contain food plants
(plantain and owl's
clover)with low levels of
non-native vegetation,
open or bare soils with
sparse shrub cover.
Historic range was
western Riverside County
and n. San Diego co;
range recently extended
to include inland and
coastal San Bernardino,
L.A., Orange,Ventura
and San Diego counties.
Sensitive Habitats
Southern mixed Steep canyons and Year round Declining Not present on site.
riparian forest drainages in the foothills plant
of local mountain ranges. community
Southern coast live Steep canyons and Year round Declining Not present on site.
oak riparian forest drainages in the foothills plant
of local mountain ranges. community
Southern Steep,narrow and Year round Declining Not present on site.
cottonwood willow shallow,broad canyons plant
riparian forest and drainages in the community
foothills of local
mountain ranges.
Desert fan palm Found where springs Year round Declining Not present on site.
oasis woodland occur or water table is plant
38
Resource Habitat And Activity FDesignation
tatus Occurrence
Distribution Period Probability
very shallow. community
LEGEND
FED: Federal Classifications
END Taxa listed as endangered
THR Taxa listed as threatened
PE Taxa proposed to be listed as endangered
PT Taxa proposed to be listed as threatened
C2* The USFWS will continue to assess the need for protection of these taxa and may,in the future,designate such
taxa as candidates.NRA,Inc.has noted the change in species status by marking with an asterisk(*)those
C2 candidates that were removed from the list.
C Candidate for listing.Refers to taxa for which the USFWS has sufficient information to support a proposal to list
as Endangered or Threatened and issuance of the proposal is anticipated but precluded at this time.
ND Not designated as a sensitive species
STATE: State Classifications
END Taxa listed as endangered
THR Taxa listed as threatened
CE Candidate for endangered listing
CT Candidate for threatened listing
CFP California Fully Protected.Fully Protected species may not be taken or possessed at any time and no licenses or
permits may be issued for their take except for collecting these species for necessary scientific research and
relocation of the bird species for the protection of livestock.
CSC California Species of Special Concern. Taxa with populations declining seriously or that are otherwise highly
vulnerable to human development.
SA Special Animal.Taxa of concern to the California Natural Diversity Data Base regardless of their current legal
or protected status.
ND Not designated as a sensitive species
CNPS: California Native Plant Society Classifications
IA Plants presumed by CNPS to be extinct in California
1B Plants considered by CNPS to be rare or endangered in California and elsewhere
2 Plants considered by CNPS to be rare,threatened or endangered in California,but which are more
common elsewhere
3 Review list of plants suggested by CNPS for consideration as endangered but about which more
information is needed.
4 Watch list of plants of limited distribution whose status should be monitored.
Occurrence Probabilities
Occurs Observed on the site during this study or recorded on site by other qualified biologists.
Expected Not observed or recorded on site,but likely to be present at least during a portion of the year.
High Known to occur in the vicinity of the project site. Suitable habitat exists on site.
Moderate Known to occur in the vicinity of the project site. Small areas of or marginally suitable habitat exists on site.
Low No reported sightings within the vicinity of the project.Available habitat limited and rarely used.
None Focused surveys did not locate the species,or suitable habitat does not exist on site.
Unknown No data is available on whether species is on or in the vicinity of the site,and information about the
species is insufficient to make an accurate assessment of probability occurrence.
39
Appendix C-Plates
40
Ir• : - •- _�-s 1_ r d
I'i-L t ra
A -. - G �� - •�- . is•.
nt
CA
41
� c �
Ne
ww
z � '
r r
O ,�
APPENDIX G
Habitat Mitigation and Monitoring Plan(HMMP) for Post-Mining Reclamation of the Pacific
Aggregates/Nichols Canyon Mine, dated June 19, 2006,Amended August 31, 2006, Amended
September 26,2006
i
63
HABITAT MITIGATION AND MONITORING PLAN(HMMP)
FOR POST-MINING RECLAMATION
OF THE
PACIFIC AGGREGATES/NICHOLS CANYON MINE
CITY OF LAKE ELSINORE
RIVERSIDE COUNTY, CALIFORNIA
June 19,2006
Amended August 31,2006
Amended September 26,2006
Prepared for:
Pacific Aggregates,Inc.
14741 Lake Street
Lake Elsinore, CA 92530
Contact: Scott Thayer
Telephone: (951) 674-2131
Prepared by:
The Planning Associates
3151 Airway Ave., Suite R-1
Costa Mesa, CA 92626
Contacts: Hardy M. Strozier,AICP
Telephone: (714) 556-5200
Page
PROJECTOVERVIEW.......................................................................................................... 1
I. PROJECT DESCRIPTION
A. Location of Project.......................................................................................................... 9
B. Brief Summary of Overall Project and Subsequent Uses.............................................. 9
C. Responsible Parties......................................................................................................... 10
D. Areas to be Impacted...................................................................................................... 10
E. Types, Functions, and Values of the Areas to be Directly
andIndirectly Impacted.................................................................................................. 17
II. GOAL OF MITIGATION
A. Types of Habitat to be Created/Enhanced...................................................................... 18
B. Functions and Values of Habitat to be Re-created/Enhanced....................................... 18
C. Time Lapse...................................................................................................................... 19
D. Implementation Costs-Estimated................................................................................. 21
III. PROPOSED MITIGATION SITE
A. Goals of Mitigation......................................................................................................... 21
B. Existing Functions and Values of Mitigation site.......................................................... 22
C. Present and Proposed Uses of Mitigation site................................................................ 22
D. Description of Mitigation Plan....................................................................................... 23
E. Ownership Status............................................................................................................ 26
F. Present and Proposed Uses of All Adjacent Areas........................................................ 26
G. Zoning............................................................................................................ ............. 27
TABLE OF CONTENTS
Page
IV. IMPLEMENTATION PLAN
A. Rationale for Expecting Implementation Success ......................................................... 27
B. Site Preparation............................................................................................................... 27
C. Re-vegetation Methods................................................................................................... 28
D. Responsible Parties......................................................................................................... 33
E. Implementation Schedule............................................................................................... 33
F. Prior to Site Preparation for Reclamation and Mitigation................................. 34
G. Reclamation Planting Plan.............................................................................................. 35
H. Irrigation Plan.................................................................................................................. 38
V. MAINTENANCE DURING MONITORING PERIOD
A. Maintenance Activities................................................................................................... 38
B. Responsible Parties......................................................................................................... 42
C. Maintenance Schedule.................................................................................................... 43
VI. MONITORING PLAN
A. Performance Criteria....................................................................................................... 44
B. Monitoring Methods....................................................................................................... 48
C. Annual Reports ............................................................................................................... 50
D. Schedule.......................................................................................................................... 51
Habitat Mitigation and Monitoring Plan
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
TABLE OF CONTENTS
Page
VII. COMPLETION OF MITIGATION
A. Notification of Completion ............................................................................................ 51
B. City of Lake Elsinore and Department of Conservation's Office of Mine Reclamation
Confirmation................................................................................................................... 51
VIII. CONTINGENCY MEASURES TO MONITORING AND MAINTENANCE
A. Initiating Procedures....................................................................................................... 51
B. Alternative Locations for Contingency Mitigation........................................................ 52
C. Funding Mechanism....................................................................................................... 52
D. Responsible Parties......................................................................................................... 53
TABLES
1. Reclamation Phasing Data.............................................................................................. 20
2. Implementation Cost Estimate ....................................................................................... 21
3. Proposed Mitigation........................................................................................................ 26
4. Native Hydroseed Mix `A' for Erosion Control............................................................ 29
5. Native Hydroseed Mix `B' ............................................................................................. 30
6. Native Trees and Shrub Palette ...................................................................................... 31
7. Implementation Schedule............................................................................................... 33
8. Maintenance Inspection Schedule Guidelines .............................................................. 43
9. Density Performance Criteria for Final Reclamation Success ..................................... 48
Habitat Mitigation and Monitoring Plan 111
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26, 2006
TABLE OF CONTENTS
Page
FIGURES
1. Regional Map ................................................................................................................. 2
2. Vicinity Map .................................................................................................................. 3
3. Nichols Road Site Mine Plan ........................................................................................ 5
4. Conceptual Reclamation Planting for Landscaping ...................................................... 7
5. Mining and Reclamation Plans Phases 1, 2 and 3 ........................................................ 8
6. Location of Topsoil Stockpiles on Site ......................................................................... 24
7. Reclamation/Mitigation Landscape Plan ...................................................................... 25
APPENDICES
A. Samples of Monitoring Data Sheets
B. Plant Species Identified Onsite
C. Wildlife Species Identified Onsite
D. Photo Plates
Habitat Mitigation and Monitoring Plan iv
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
PROJECT OVERVIEW
This report describes proposed native plant re-vegetation mitigation and estimated costs for
impacts related to the reclamation of the 211.40-acre Pacific Aggregates/Nichols Canyon Mine
Project (Project) located in the City of Lake Elsinore, County of Riverside, California (See
Exhibits 1 and 2). Pacific Aggregates proposes to perform post-mining reclamation operations
to reclaim and restore the site concurrently for post-mining uses, which will allow the creation of
pads suitable for commercial uses and permanent open space in the northern reclamation areas
on the Project site. The ultimate reclamation mitigation will therefore focus primarily on the
permanent open space areas of the Project site, since it is most likely that the commercial
development areas will be initiated concurrent with the termination of mining activities after the
first 3 years. In the event that the commercial areas are not initiated concurrent with post-mining
activities, the native re-vegetation of the future commercial development areas will be initiated
according to the commercial development market driven phasing schedule. The proposed native
plant re-vegetation plan and cost estimates are developed for the entire site assuming, worst case,
that no commercial development will occur within the 8 year mining and reclamation time
horizon.
The site is located in an undeveloped commercially Specific Plan zoned portion of the City of
Lake Elsinore located just to the east of Interstate 15 (I-15) adjacent to the Nichols Road
interchange (See Figure 1). The project site can be accessed by exiting I-15 at the Nichols Road
intersection, and then traveling several hundred feet east along Nichols Road and exiting north
and south from Nichols Road onto the existing dirt access roads into the Reclamation area.
The assessor parcels (APNs 389-200-015; 023 and 024) that make up the project site are
controlled by Pacific Clay Products, Inc. (Pacific Clay), the owner for purposes of this
application, and will be operated by Pacific Clay's wholly owned subsidiary, Pacific Aggregates,
Inc. (Pacific Aggregates), who will perform reclamation operations. The site is included in
Pacific Clay's current Reclamation Plan approved by the County of Riverside as RP-112 prior to
the site being incorporated into the City. The reclamation operation is a separate quarry within
RP-112. The reclamation plan is designed to conform to the previously approved Alberhill
Ranch Specific Plan Amendment No. 3, which recognizes post-mining reclamation activities.
The reclamation plan is also designed to minimize impacts to the surrounding community and
environment and meet most of operational controls found in the City's Surface Mining and
Reclamation Ordinance, No. 897 Municipal Code section 17.06.040, which is the City's
implementation of the State's Surface Mining and Reclamation Act (SMARA). The proposed
post-mining reclamation activities are consistent with the provisions of the Alberhill Ranch
Specific Plan and associated amendments, including Specific Plan Amendment Number 3 which
governs this project site's zoning.
The project site is located in an undeveloped area within the northern half of Section 25,
Township 5 south, Range 5 west, San Bernardino Base Meridian (See Figure 2). Elevations of
VICINITY MAP
FIGURE 1
t I e r r 80
Ct1 1 h'.
o
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a
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t r -•w„ \ ��-. �b� t1_ _ - I"�-�._+_ + NATC
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i
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p SITE a % , ._.
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''f a� .nYenr� .. f� Ycc�"L1 ' ` �,.t. , qa,• '. p° 3Cb,,.. -, cif � - � Ra�,r-
'y ` �pI , �•`. �' 1��� , '•.jam �-.VrrJ o r it � • i S ��� r
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ft
Contour Interval 100 meters - \l ���;Sp w ► al S; •,`� f!r` +••', t
(_•.f (100 meters=328.081 Rot)
PROJECT
SITE MAP
FIGURE 2
O
Wkw
(18
! II O
� '•\ 'a N � `
IN
/v O ',a• � V o a
0 0
o PROJECT 4
X SITE R
A IN f U At _ U _
yd y I 0
,bpp ill 1C. 0 11
0 0 l i,j p rF
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6
ii Tea ...-�_.4:...... a --- '•,1 -
•
Te 4H. • {(� .••
hC �`2P � � ..r a h.•- - . . . ••� j
:`< .,
Reservoir\\
a Reservoir
/ ��/,• yg� \/467 c. • i h yr/ A.
pop � •� •'\ I �, •
BM 1275 ��'• �:�:
Elsino
'•O' t.DRIVE' ....... � I a\` \ ...
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• '•f' II a�„'`�r' �
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ewage,q�posa( oi
�s';•o:: yof• �_—=_-�---_=__' -:..�=- 1 ®: D Rescue � �
• ''••$ � - ---= ��-mall-"'=1:..�:.�G..=w_III����.�T
� yc.—___—__--__—____-_.___ :•—.raiex'�•." - c^...�-'.ac:'_"' _�..;..:-.:^•'c.. ...-_ � jg
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the site range from 1299 feet above mean sea level (msl) in the southern portion where the site
roadway access with I-15 will be located, to a height of 1,500 feet msl in the northern portion of
the site. The reclamation site will have been excavated in
multiple phases to form an
p
approximate flat area of 63.86 acres (north of Nichols Road) and an approximate flat area of
34.62 acres (south of Nichols Road) for an approximate total of 98.48 acres of post-mined and
reclaimed area. The reclamation plan also includes 23.15 acres of re-created slope and 3.94
acres shown as a `Disturbance Area' on the northern mining area that is set back a considerable
distance along the Nichols Road frontage and extends north and east into the higher elevations of
the 211.40 acre site. The excavation plan will utilize the westerly onsite ridgelines along the I-15
freeway to limit views of the reclamation operations, which are located in the northern portion
of the 121.63-acre mining area. The on-site post-mining reclamation will ultimately total
approximately 121.64 acres with a temporary access frontage road alignment along both sides of
Nichols Road(See Figure 3).
Approximately 77.28 acres will remain undisturbed within the 211.40-acre mining area. There
will be an approximate 50- foot setback along the Nichols Road perimeter of the property to the
edge of the reclamation activities. This perimeter setback area will act to buffer and screen the
project activity from future adjacent commercial properties and Nichols Road. The entire
frontage boundary on the west and southwest perimeter abuts the Cal-Trans' right-of-way along
1-15.
The two entrance/access roads will provide a 26-foot wide graded gravel or oil mix roadway,
located just off Nichols Road near the I-15/Nichols Road intersection. Certain reclamation
activities will commence during the operational life of the mine. The post-mining
Reclamation Plan noted as Phase 4 in the overall mining and reclamation planning, will
commence a final 5 year mitigation reclamation. (See Figure 4) The proposed post-mining
reclamation land use, or future land use, will include approximately 104.37 acres of
undisturbed/reclaimed/revegetated native open space within the project areas (93.99 acres north
of Nichols Road and 10.38 acres south of Nichols Road). The remaining balance of the total
211.40 acres on site include: 8.54 acres provided for the existing and future Nichols Road and
the 98.48 acres located within the `flat' post-mining reclamation areas (MR-1 thru MR-4) that
will be reclaimed and rough graded for future zoned commercial land uses consistent with the
adopted Alberhill Ranch Specific Plan Amendment No. 3. Consistent with the adopted Specific
Plan, final restoration of the site to native conditions will occur in the northern permanent open
space zone labeled `Reclamation Slope' noted within MR-1 shown on Figure 3. This native
plant restoration described within the following pages of the Habitat Mitigation and Monitoring
Plan (HMMP) is to occur within the final Phase 4 of the Reclamation Plan Phasing, shown on
Figure 5 and will continue for approximately 5 years following the initial approximate 3 years
and 3 phases of final reclamation removals.
Habitat Mitigation and Monitoring Plan 4
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
CALTRANS SLOPE
100,653 SF
2.31 AC RECLAMATION SLOPE
PROPOSED
TOE OF SLOPE— \
LIMITS OF FUTURE
DEVELOPMENT �\ � v'
DISTURBANCE AREA = 120' WIDE MIN.
--MR-1
2,353,187 SF \
54.02 AC \
REMAINDER AREA (NO.)
\ 2,914,324 SF
\\ 66.90 AC
\ Q
MR-2 `\
1,336,281 SF i
EXISTING 30.68 AC
NICHOLS RD. e
NICHOLS MINING RECLAMATION SUMMARY 4
68,902 SF — — — — — _ FUTUREMining Fill\ 1.58 AC 1 NICHOLS RD. Area No. (Overburden)
Area Cut (Overburden) p
303,100 SF S.F. Acres C.Y. Tons C.Y- Tons
6.96 AC MR-1 2,353,187 54.02 c
— s,sl2,000 11,oss,000
MR-2 1.336.281 30.68 305,000 488,000 h
NICHOLS ROAD
_ MR-3 377,184 8.66 364,000 582,400
M R-3 M K — 1,131,138 25.97
MR-4 T _ — 217,000 347.200 Q
280,908 SF 96,276 SF _
M R-4 2.21 AC / G� DISTURBANCE ZONE 171,530 3.94 W
MR-4 6.45 AC / SQP� ' REMAINDER AREA NO. 2_.914,324 66.90
y� 1,131,138 _ _\ /ev\j
\ ) 25.96 AC .— REMAINDER AREA SO. 452,314 10.38 1
z EXIST. NICHOLS ROAD 68,902 1.58
0
REMAINDER AREA (SO.) FUTURE NICHOLS ROAD 303.100 s.ss
i 452,314 SF
10.38 AC
SUBTOTAL 9,107,960 209.09 7,276,000 11,641,600 522,000 835,200 kq
W
Q
CALTRANS SLOPE (OFF—SITE) 100,653 2.31 389,274 622,838 O
TOTAL 2.208,613 211.40 7,665,274 12,264,438 522,000 835.200 W
q
O
PACIRC AGORM472ES, INC.
�I GU�ENG/NEERS NICHOLS ROAD S/rE o
,ate CO o"•`u `u 9�°ua"fti; `-:,m M/NE PLAN
F/GURE J
— Objective and Need for the Reclamation Project
The post-mining reclamation is required because of mining occurring onsite. The SMARA
requires post-surface mining reclamation activities. The purpose of this HMMP is to assist in the
reclamation of the mined project area.
This HMMP was prepared as a result of the Pacific Aggregates' primary objective for this
Reclamation Project,to return land to its natural state after mining has occurred. The
Reclamation Plan's HMMP provides the following objectives:
1) To provide for the City of Lake Elsinore post-mining Reclamation Plan
implementation as required by the State Surface Mining and Reclamation Act
(SMARA);
2) To provide direction in reclaiming an existing mining site with the goal to limit off-
site visual, noise, or air quality impacts to the surrounding area;
3) To assist in reclaiming the site concurrently for post-mining uses and providing a
native plant palette for the created pads suitable for the future commercial and/or
industrial uses along the I-15 and provide a native slope plant palette for permanent
open space in the northern reclamation areas and created slopes- restoring them to
their natural state; and
4) To assist in reclaiming and maintaining the site as necessary to eliminate potential
hazards to public health and safety
Habitat Mitigation and Monitoring Plan 6
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
RECLAMATION
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NICHOLS ROAD SITE
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I. PROJECT DESCRIPTION
A. Location of Project
The Reclamation Project is located in the City of Lake Elsinore, County of Riverside, California.
The site is located in an undeveloped commercially Specific Plan zoned portion of the City of
Lake Elsinore located just to the east of Interstate 15 (I-15) adjacent to the Nichols Road
interchange (See Figure 1). The project site can be accessed by exiting 1-15 at the Nichols Road
intersection, and then traveling several hundred feet east along Nichols Road and exiting north
and south from Nichols Road onto the existing dirt access roads into the Reclamation area. The
I-15 borders the western side of the Project site. The southeastern boundary of the Project site is
shared by sparse single-family rural-residential properties. The properties to the north, northeast
and southern boundaries are vacant land. An existing high school (property of the Elsinore Union
High School) occurs over 100' south of the property boundary. The Project is located within the
undeveloped area within the northern half of Section 25, Range 5 west, Township 54 south and is
depicted on the U.S. Geological Survey (USGS) Lake Elsinore quadrangle [dated 1953 and
Photorevised in 1982].
B. Brief Summary of Overall Project and Subsequent Uses
Pacific Aggregates will perform post-mining reclamation operations to reclaim and restore the
site concurrently for post-mining uses. The intent of this HMMP is to provide a working
document that will direct the site's Reclamation. The replanting of the site land surface in a
} native plant palette will restore the slopes to their natural state. The "flat" pad areas will also be
temporarily restored with a native plant mix until future commercial/industrial land use
development comes on-line.
The intent of the California Surface Mining and Reclamation Act (SMARA) is to "maintain an
effective and comprehensive surface mining and reclamation policy with regulation of surface
mining operations so as to assure that: (a) adverse environmental effects are prevented or
minimized and that mined lands are reclaimed to a usable condition which is readily adaptable
for alternative uses; (b) the production and conservation of minerals are encouraged, while
giving consideration to values relating to recreation, watershed, wildlife, range and forage, and
aesthetic enjoyment; and (c) residual hazards to the public health and safety are eliminated"
(Section 2712). Article 9, Section 3700 of SMARA states the following: "Reclamation of mined
lands shall be implemented in conformance with standards in this Article (Reclamation
Standards). The standards shall apply to each surface mining operation to the extent that:
(1) They are consistent with required mitigation identified in conformance with CEQA;
and
(2) They are consistent with the planned or actual subsequent use or uses of the mining
site."
1
Habitat Mitigation and Monitoring Plan 9
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
The HMMP will assist in providing "mitigation and monitoring for approximately 5 years.
Pacific Aggregates proposes in reclaiming the mine site to meet the City of Lake Elsinore
Ordinance No. 17.06.040, the City's implementation of the State's SMARA, which will
minimize impacts to the surrounding community and environment. The objectives of this Pacific
Aggregates/Nichols Canyon Post-Mining Reclamation Plan are to:
• Eliminate or reduce the environmental impacts from post-mining operations;
• Reclaim in a usable condition for post-mining end uses, which will include pads
potentially suitable for commercial development and open space;
• Contour post-mining reclamation features and restore/revegetate through the use of
native plant material palette those disturbed areas to be reclaimed as open space to
minimize aesthetic,biological, hydrological impacts; and
• Reclaim the site as necessary to eliminate hazards to public health and safety.
C. Responsible Parties
Applicant: Pacific Aggregates, Inc.
14741 Lake Street
Lake Elsinore, CA 92000
Telephone: (951) 674-2131
j Contact: Scott Thayer(949)486-0550 or
Tom Tomlinson(951)245-0476
Preparers of Mitigation Plan: The Planning Associates
3151 Airway Ave., Suite R-1
Costa Mesa, CA 92626
Telephone: (714) 556-5200
Contact: Hardy M. Strozier/Kate Radcliffe-Lang
D. Areas to be Impacted
The Planning Associates (TPA) staff Biologist Dr. Jack Turner and regulatory planners, and
Philippe Vergne, biologist from Environmental Associates (ENVIRA), prepared a Phase One
General Biological Assessment for Assessors Parcel Numbers 389-200-023/024/015 located in
Riverside County, California. The purpose of the survey was to document the biological
resources present onsite and to assess the potential for sensitive resources to occur on the
property.
Habitat Mitigation and Monitoring Plan 10
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
The project survey areas have a surface area of 204.75 acres. The proposed project is for post-
mining reclamation for those areas within the northernmost acres located to the north of Nichols
Road and to the east of I-15, and the re-contoured area of 125.58 acres, of which 98.48 acres of
the parcel to allow for the development of buildings for commercial and/or industrial use and
open space on both sides of Nichols Road, 23.15 acres of re-created slope and 3.94 acres of
"Disturbed Area" (the area that will occur between the reclamation slope and unaffected open
space area).
A biology data search was conducted to provide information on plant and wildlife species known
occurrences within the vicinity. This review included biological texts on general and specific
biological resources, and those resources considered to be sensitive by various wildlife agencies,
local governmental agencies and interest groups. The documents reviewed include:
—List of sensitive biological resources provided by the California Natural Diversity Data Base
—Western Riverside Multiple Species Habitat Conservation Plan(MSHCP) documents
—Biological resources report for this site and adjacent properties
—General texts and other documents identifying potential resources on the property
The results of the data search and assessment are provided in the Sensitive Species Table in
Appendix 'Cl.
The existing site conditions were recorded; paying specific attention to habitats that may
potentially contain sensitive species. Sensitive species identified in the literature as present but
not identified on site through on-site surveys include those listed, or candidates for listing by the
U. S. Fish and Wildlife Service (USFWS), California Department of Fish and Game (CDFG) and
California Native Plant Society(CNPS).
Philippe Vergne of ENVIRA on August 8, 15 and 22, 2005, conducted Field surveys. The
property was surveyed using standard biological assessment survey techniques. Surveys
consisted of a complete walkover of the footprint area and included an evaluation of the habitats
on the property and in the surrounding area. The field surveys were focused on sensitive
biological resources, and included observations of potential habitat for sensitive species. Sign
surveyed for included nests, tracks, scat, burrows, skeletal remains, and live animals. During the
surveys, notes were made on the plant and animal species observed, the surface characteristics
and topography of the project area, and the suitability of the habitat for the sensitive species.
Habitat Mitigation and Monitoring Plan 11
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
Binoculars were used to aid in the identification of birds. All species identified by sight, call or
sign (burrows, scat, tracks, etc.) were recorded. Site photographs were taken with a digital
camera.
A jurisdictional determination of the project site was conducted to ascertain the limits of
wetlands and waters subject to U. S. Army Corps of Engineers (Corps)jurisdiction under Section
404 of the Clean Water Act and California Department of Fish and Game (CDFG) under
Sections 1602 et seq. of the CDFG Code.
a. Results of Sensitive Biological Resources Surveys:
The project site was reviewed to determine consistency with the MSHCP. The Riverside County
Integrated Project (RCIP) Conservation Summary Report Generator was queried to determine
habitat assessment and potential survey requirements for the project site. This was cross-
referenced to the Errata to the MSHCP to determine if there are any additional species
requirements.
The MSHCP also requires that an assessment be completed of the potentially significant effects
of the project on riparian/riverine areas, and vernal pools. According to the MSHCP, the
documentation for the assessment shall include mapping and a description of the functions and
values of the mapped areas with respect to the species listed in Section 6.1.2, Protection of
Species Associated with Riparian/Riverine Areas and Vernal Pools.
The Western Riverside County Multiple Species Habitat Conservation Plan (MSHCP) has
designated Criteria Cells that include conservation areas intended for protection of natural
resources. Based on project APN numbers entered in the Count database the proposed project
eso p � y p p p �
lies within the portion areas of MSHCP Criteria Cells W of the Lake Elsinore Area Plan (Cell
4060 and Cell 4067) slated for conservation or preferred for acquisition or protection by the
County. Conservation within this Cell Group W will range from 80 to 90% of the Cell Group,
focusing in the northwestern portion of this Cell Group.
The project site is not subject to the provisions of the MSHCP as determined through an
adjudicated settlement agreement with the County of Riverside.
b. The MSHCP database has identified:
Seven Criteria Area species as follows: Thread-leaved brodiaea (Brodiaea filifolia),
Davidson's saltscale (Atriplex serenan var. davidsonii), Parish's brittlescale (Atriplex parishii),
Smooth tarplant (Centromadia pungens ssp.laevis), Round-leaved filaree (Erodium
macrophyllum), Coulter's goldfields (Lasthenia glabrata ssp. coulteri), Little mousetail
(Mysosurus minimus).
These Narrow Endemic plant species as follows: Munz's onion (Allium munzii), San
Diego ambrosia (Ambrosia pumila), Slender-horned spineflower (Dodecahema leptoceras),
Many-stemmed dudleya (Dudeeya multicaulis), California Orcutt grass (Orcuttia californica),
Habitat Mitigation and Monitoring Plan 12
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
Spreading navarretia (Navarretia fossalis), San Miguel savory (Satureja chandleri), Hammitts
clay-cress (Sibara psishammittii), Wright's trichocoronis (Trichocoronis wrightii).
Appendix `C' contains a table of the sensitive biological resources identified for the project
area, their habitat requirements, seasonal distribution, legal standing and the potential for their
presence or absence on site.
c. Disturbances:
On site disturbances include dirt access roads, illegal trash dumping, and major off road vehicles
use.
The property is bordered on the west by I-15, and open space on the east, west and north.
Nichols Road bisects the southern portion of the site.
d. Plant Communities:
Two habitat types occur on the property disturbed annual grasslands and recovering/emergent
coastal sage scrub. A detailed list of the plant species on site is given in Appendix `B'.
e. Wildlife
Wildlife activity was moderate to high, with most of the wildlife represented by bird species and
small mammals. Species observed included the San Diego horned lizard (Phrynosoma
coronatum blainvillei), the coastal western whiptail (Aspidoscelis tigris tigris) and side-blotched
lizard (Uta stansburiana). Bird species observed included the red-tailed hawk (Buteo
jamaicensis), the California quail (Callipepla califomica), the western kingbird (Tyrannus
verticalis), the loggerhead shrike (Lanus ludovicianus), the grasshopper sparrow
(Ammodramus savannarum), the red-tailed hawk (Buteo jamaicensis), and kestrel (Falco
sparverius). Mammal species observed included the Botta's pocket gopher (Thomomys bottae),
California ground squirrel (Spermophilus beecheyi) ), black-tailed jackrabbit (Lepus
califomicus),Audubon's cottontail(Sylvilagus aubudonii), Stephens's kangaroo rat (Dipodomys
stephensi), and Dulzura kangaroo rat(Di. Simulans), and coyote (Canis latrans).
L Sensitive Biological Resources:
Sensitive biological species potentially present include those listed, or candidates for listing by
the U. S. Fish and Wildlife Service (USFWS), California Department of Fish and Game (CDFG)
and California Native Plant Society(CNPS). All sensitive biological species were considered as
potentially present on the project site if its known geographical distribution encompassed all or
part of the project area or if its distribution was near the site and its general habitat requirements
were present.
g. Following is a brief summary and project site findings of the more detailed information
provided in Table B for species specifically targeted for on the project site during the
surveys:
Habitat Mitigation and Monitoring Plan 13
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
• California gnatcatchers were previously documented on site, but the 2004 wild land fires
have drastically reduced or eliminated the amount of scrub habitat and actual occupancy
on the property. No California gnatcatchers were observed on the property.
• The Stephen's kangaroo rat occurs on portions of the property; the Stephen's kangaroo
rat is covered by the previous SKR Habitat Conservation Plan and SKR mitigation fees
that have previously been paid.
• No burrowing owls or burrowing owl signs were found during the site protocol survey.
• There are no identifiable vernal pools on site; however, potentially suitable water
ponding can occur at several locations on the property, given the presence of non-
endangered fairy shrimp in the project vicinity it is plausible that the non-protected
species could have or can establish themselves in those areas.
h. Multiple Species Habitat Conservation Plan Riparian Species and Project Site Findings:
• In addition to the fairy shrimp, the Riverside County MSHCP region area requires project
sites to be evaluated for the presence of riparian habitat suitable to support the least Bell's
vireo (Vireo bellii pusillus), southwestern willow flycatcher (Empidonax traillii extimus),
and California yellow-billed cuckoo (Coccyzus americanus occidentalis). These bird
species are typically found in wooded riparian habitats and are not found in non-riparian
habitats.
• None of the MSHCP listed avian species are expected to nest or forage on site due to lack
of habitat.
i. Other Sensitive Resources:
Other sensitive species that were not seen, but for which potential habitat exists on site, are
discussed in the sensitive species table.
j. Western Riverside County Multiple Species Habitat Conservation Plan and Project Site
Findings:
The Western Riverside County Multiple Species Habitat Conservation Plan (MSHCP) has
designated Criteria Cells that include conservation areas intended for protection of natural
resources. Based on project APN numbers entered in the County database, the proposed project
lies within the portion areas of MSHCP Criteria Cell W of the Lake Elsinore Area Plan (Cell
4060 and Cell 4067) slated for conservation or preferred for acquisition or protection by the
County. Conservation within this Cell Group W ranges from 80 to 90 percent of the Cell Group.
Conservation within these Cell Groups is to focus on riparian scrub, woodland and forest habitat
associated with Alberhill Creek and adjacent grassland habitat.
The proposed project lies within the MSHCP Criteria Cell slated for conservation; however, it is
separated and isolated from the core habitat by I-15.
Habitat Mitigation and Monitoring Plan 14
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
k. Drainages and Wetlands -Army Corps of Engineers and Project Site Findings:
The Corps regulates discharges of dredged or fill material into waters of the United States. These
watersheds include wetlands and non-wetland bodies of water that meet specific criteria. The
lateral limit of Corps jurisdiction extends to the "Ordinary High Water Mark" (OHWM) and to
any wetland areas extending beyond the OHWM; thus, the maximum jurisdictional area is
represented by the OHWM or wetland limit, whichever is greater.
Corps regulatory jurisdiction pursuant to Section 404 of the Clean Water Act is founded on a
connection or nexus between the water body in question and interstate (waterway) commerce.
This connection may be direct; through a tributary system, linking a stream channel with
traditional navigable waters used in interstate or foreign commerce, or may be indirect, through a
nexus identified in the Corps regulations.
There are no Corps jurisdictional drainages found on the project reclamation site since Corps
jurisdictional areas are avoided and no wetlands exist within the project boundaries. The water
flow within the drainages located north of Nichols Road has been interrupted by the construction
of a dirt road which has altered the natural hydrology and eliminated a portion of the banks along
the drainage. Natural siltation has also contributed to the isolation of the dry wash waters on
site. Flow to the 36-inch culverts that migrate toward Alberhill/Temescal Creek currently occurs
only through sheet flow during heavier, extra-ordinary rainfall events.
Grading plans for the portion of the project located to the south of Nichols Road have been
amended so as eliminate direct impact to the jurisdictional drainages.
1. Drainages and Wetlands - California Department of Fish and Game and Project Site
Findings:
The California Department of Fish and Game (CDFG), through provisions of the State of
California Administrative Code, is empowered to issue agreements for any alteration of a river,
stream or lake where fish or wildlife resources may adversely be affected. Streams (and rivers)
are defined by the presence of a channel bed and banks, and at least an intermittent flow of
water. Lateral limits of jurisdiction are not clearly defined, but generally include any riparian
resources associated with a stream or lake; CDFG regulates wetland areas only to the extent that
those wetlands are part of a river, stream or lake as defined by CDFG. The interrupted dry wash
does not come under the jurisdiction of the CDFG.
m. Raptors,Migratory Birds, and Habitat and Project Site Findings:
Most of the raptor species (eagles, hawks, falcons and owls) are experiencing population
declines because of habitat loss. Some, such as the peregrine falcon, have also experienced
population losses because of environmental toxins affecting reproductive success, animals
destroyed as pests or collected for falconry, and other direct impacts on individuals. Only a few
species, such as the red-tailed hawk and barn owl, have expanded their range in spite of or a
result of human modifications to the environment. As a group, raptors are of concern to state
J and federal agencies.
Habitat Mitigation and Monitoring Plan 15
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
In addition, raptors and all migratory bird species, whether listed or not, receive protection under
the Migratory Bird Treaty Act (MBTA) of 1918. The MBTA prohibits individuals to kill, take,
possess or sell any migratory bird, bird parts (including nests and eggs) except in accordance
with regulations prescribed by the Secretary of the Interior Department (16 U. S. Code 703).
Additional protection is provided to all bald and golden eagles under the Bald and Golden Eagle
Protection Act of 1940, as amended. The CDFG Code, Section 2503.5, extends state protection
to all birds of prey. No take is allowed under these provisions except through the approval of the
agencies or their designated representatives.
Potential for raptor nesting and active foraging habitat exists within the project footprint and
adjacent areas.
Due to the potential for direct impacts to nesting raptors and migratory birds due to project
development we recommend that a pre-grading nesting bird survey be conducted if earth moving
is to occur within the nesting season(February 1 through August 31).
n. Habitat Fragmentation and Wildlife Movement and Project Site Findings:
Wildlife movement and the fragmentation of wildlife habitat are recognized as important wildlife
issues that must be considered in assessing impacts to wildlife. In summary, habitat
fragmentation is the division or breaking up of larger habitat areas into smaller areas that may or
1 may not be capable of independently sustaining wildlife and plant populations. Wildlife
movement (more properly recognized as species movement) is the temporal movement of
species along various types of corridors. Wildlife corridors are especially important for
connecting fragmented wildlife habitat areas.
The project site and footprint area offer moderate to low wildlife use potential. Habitat
fragmentation has already occurred in the project vicinity as a result of highway and road
construction and nearby mining operations. No major animal movement corridors could be
identified through the site.
o. Discussion and Summary of Potential Impacts:
• No burrowing owls or sign of burrowing owls was detected on site; however, due to the
presence of suitable but currently unoccupied habitat a pre-construction clearance survey
for BO will have to be conducted within one month of grading activities.
• Impacts will occur to the Stephen's kangaroo rat. SKR are covered under an existing
HCP and fee program.
• No California gnatcatcher will be affected due to project implementation since its habitat
has been eliminated.
Habitat Mitigation and Monitoring Plan 16
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
• Impacts will occur to the horned lizard, coastal whiptail, and loggerhead shrike due to
project implementation. These species are not currently protected by the Endangered
Species Act.
• There will be no impacts to fairy shrimp due to the non-presence of vernal pools on site
and the lack of adequate habitat for the protected RFS.
• No impacts to Criteria Area or Narrow Endemic plant species will occur due to project
implementation.
• Limited impact to grasslands associated bird species' foraging habitat will occur due to
project implementation. These impacts are not considered significant.
• Potential for raptor and migratory bird nesting and active foraging habitat exists within
the project footprint and adjacent areas. Due to the potential for direct impacts to nesting
raptors and migratory birds due to project development we recommend that a pre-grading
nesting bird survey be conducted if earth moving is to occur within the nesting season
(February 1 through August 31).
• Based on project APN numbers entered in the County database, the proposed project lies
within the portion areas of MSHCP Criteria Cell W of the Lake Elsinore Area Plan (Cell
4060 and Cell 4067) slated for conservation or preferred for acquisition or protection by
the County. Conservation within this Cell Group W ranges from 80 to 90 percent of the
Cell Group. Conservation within these cell groups is to focus on riparian scrub,
woodland and forest habitat associated with Alberhill Creek and adjacent grassland
habitat. The project site is not subject to the provisions of the MSHCP.
• The proposed project lies within the MSHCP Criteria Cell slated for conservation.
However it is separated and isolated from the core habitat by Highway 15. The project
site is not subject to the provisions of the MSHCP.
• Impacts to other sensitive species potentially present on site are not expected to be
significant due to one or more of the following factors: 1) No suitable habitat exists on
site; or, 2) The use of the site is limited to occasional or seasonal visits and the site does
not encompass a substantial portion of their range.
E. Types,Functions, and Values of the Areas to be Directly and Indirectly Impacted
Disturbed non-native annual grasslands and recovering/emergent coastal sage scrub will be
impacted by the proposed Project. Photo Plates located in Appendix `D' provide representative
views of the site.
Habitat Mitigation and Monitoring Plan 17
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
Functions Related to Habitat:
Habitat for Invertebrates: The Project site has a low potential for supporting invertebrates since
the site is dry most of the year. No invertebrate species were identified onsite during field
surveys performed in 2005. A complete list of the wildlife species identified on site in 2005 is
provided in Appendix `B'.
Habitat for Vertebrates: The Project site supports moderate to low limited wildlife foraging
habitat. The wildlife species that were identified within the boundaries of the property during
performance of 2005 field surveys are found within a detailed list found in Appendix `B'. The
wildlife species identified on site, are locally common species characteristically associated with
disturbed non-native non-habitat species dominated vegetation associations present within areas
devoid of natural native habitat.
Habitat for Vascular Plants: The Project site has two habitat types that occur on the property:
disturbed annual grasslands and recovering/emergent coastal sage scrub. A detailed list of the
plant species on site is given in Appendix `B'.
II. GOAL OF MITIGATION
A. Types of Habitat to be Created/Enhanced/Restored
The goal of native plant restoration mitigation is to increase native habitat for amphibians,
migrating birds, passerines, and to ensure a net gain in native habitat functions resulting from
permanent and temporary impacts to the Project site. The mitigation will be accomplished through
the reclamation/re-creation of 27.09 acres of permanent native habitat and the
reclamation/recreation of 98.48 acres of temporary native habitat (that will in the future become
commercial and/or industrial development) for a total of 125.58-acre area of mitigation.
Native upland habitat will be re-created in appropriately selected areas and with appropriate native
plant species. The reclamation mitigation site will be graded in accordance with engineering
drawings. Following grading, all non-native plant species will be removed within the Project
boundaries. A qualified habitat restoration specialist or other individual knowledgeable in native
plant revegetation (hereinafter referred to as the "Project Monitor" (The Planning Associates)
will assist with adjustments to Project implementation that may be required in the field as
conditions dictate.
B. Functions and Values of Habitat to be Re-created
Functions Related to Hydrologic Processes
Surface Water Storage
The reclamation mitigation site will provide for moderate storage of surface water runoff from the
1 site and the proposed commercial development. The reclamation mitigation site will also store
Habitat Mitigation and Monitoring Plan 18
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
surface water following winter and ephemeral spring rains, similar to other soft-bottom, restored
drainage channels in the surrounding, and adjacent local vicinity.
Functions Related to Biochemical Processes
Element Cycling
Nutrients above background levels will not be introduced into the mitigation site, as the applicant
will follow Best Management Practices (BMP's) within the reclamation mitigation site. The
native habitat to be created will be a balanced system in which primary productivity and
detrimental turnover will be in equilibrium and will exhibit element cycling at equal or higher
levels than the habitat being removed.
Functions Related to Habitat
Habitat for Invertebrates: The reclamation mitigation site will provide no habitat for invertebrates.
Habitat for Vertebrates: The 125.58-acre reclamation mitigation site is expected to provide
moderate to high quality habitat for a variety of vertebrates typically found in the area, consistent
with other native upland habitat mitigation projects in the surrounding local vicinity exhibiting
similar characteristics.
Habitat for Vascular Plants: The mitigation site will provide moderate to high quality habitat for
a variety of vascular plants. Plants included within the mitigation site will include two native
hydroseed mixes (one with wildflowers on the flatter more level areas and the other will contain
erosion control plant material) as well as a native shrub and tree palette for the slope areas that
will include,but are not limited to: Toyon(Heteromeles arbutifolia), Valley Oak(Quercus lobata),
California Bay (Umbellularia californica), Manzanita (Arctostaphylos manzanita), Coyote Brush
(Baccharis pilularis), Ceanothus (Ceanothus 'Snowball), Rock Rose (Cistus purpureus), Holly
Leaf Cherry(Prunus ilicifolia), Purple Sage (Salvia leucophylla), and Sugar Bush(Rhus ovata) and
Scrub Oak(Quercus dumosa).
C. Time Lapse
The implementation of the reclamation mitigation plan will occur concurrently with project
grading and construction, currently underway outside of jurisdictional areas. Container stock
will be installed during the winter rainy season. Once reclamation/re-creation of the mitigation
site has begun, lost habitat values are expected to quickly reestablish at the reclamation
mitigation site and rapidly exceed the existing relatively low pre-mitigation habitat values.
Within one year of the completion of installation, it is expected that minimal native upland
habitat vegetative structure will exist and that insects and birds will utilize the site for foraging.
The native woody trees will take roughly five years to become established, although they are
expected to provide some degree of forage and shelter within two years.
i Phase 1 Reclamation Mitigation: Initiated approximately in year 2009 following the completion
Habitat Mitigation and Monitoring Plan 19
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
of the third and final phase of mining. Post-mining clean up; replacement of adaptable
vegetative soils previously stockpiled. Initial planting, hydroseed and temporary irrigation (if
required) will be installed according to a landscape architect/biologist prepared Habitat
Mitigation and Monitoring Plan. As stated above, planting will be conducted prior to rainy
season to take advantage of natural precipitation during the winter and spring months. Yearly
monitoring reports will be provided to the City of Lake Elsinore and the California Department
of Conservation's Office of Mine Reclamation (OMR) according to the reporting schedule and
regulations.
Phase 2 Reclamation Mitigation: Second year monitoring and rehabilitation of new landscaped
areas that may have not germinated, weed control and repair to landscape and slope areas caused
by weather damage. Monitoring report provided to the City of Lake Elsinore and the California
Department of Conservation's OMR.
Phase 3 Reclamation Mitigation: Third year monitoring and rehabilitation. Monitoring report
will be provided to the City of Lake Elsinore and the California Department of Conservation's
OMR.
Phase 4 Reclamation Mitigation: Fourth year monitoring and rehabilitation. Monitoring report
will be provided to the City of Lake Elsinore and the California Department of Conservation's
OMR.
Phase 5 Reclamation Mitigation: Fifth and final year of monitoring and rehabilitation assessing
performance standards. Final monitoring report provided to City of Lake Elsinore and the
California Department of Conservation's OMR.
Table 1
Reclamation Phasing Data
PHASE YEARS OF PLANNED RECLAMATION MITIGATION
OPERATION estimated ACTIVITIES
1 1 Site preparation and Habitat Mitigation Monitoring
Plan preparation.
2 1 Second year monitoring and reporting. Intensive
weed control and replanting where necessary.
3 1 Third year monitoring and rehabilitation where
required.
4 1 Fourth year monitoring and rehabilitation.
5 1 Fifth and final year monitoring and rehabilitation.
Source: Pacific Aggregates,Inc. September 2005
*The estimated life of each phase is dependent upon the extraction rate and product demand.
These estimates assume that the extraction rate maintains a production rate of 4,000 tons per year.
I
Habitat Mitigation and Monitoring Plan 20
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
D. Estimated Cost
Table 2 below indicates the estimated cost for implementation, maintenance, and monitoring of
the reclamation mitigation site for five years or until completion of the applicant's
responsibilities.
TABLE 2
IMPLEMENTATION COSTS-ESTIMATED
TASK COSTS* COSTS"
(Without Commercial (With Commercial)
Site Preparation (Reapplication of Topsoil, but $100,000 $37,500
does not include exotic plant removal) [$Lump
Sum]
Temporary Irrigation (where needed tor $750,000 $281.250
container stock)[$Lump Sum]
Installation(includes container plants on slopes $500,000 $187,500
and two hydroseed mixes) [$Lump Sum]
Project Maintenance [$3,000/acre x 5 years] $1,478,000 $706,400
Project Monitoring[$Lump Sum for 5 years] $600,000 $400,000
Contingency and Remediation [20% of $658,600 $322,550
subtotal]
Total $4,086,600 $1,935,200
Notes:
*1.The proposed native plant re-vegetation plan and cost estimates are developed for the entire site assuming that no commercial
development will occur within the 8 year mining and reclamation time horizon.
**2. If the commercial project site areas develop concurrently with the phase out of mining, then the estimated re-vegetation
costs will be commensurately reduced for the commercial development areas as indicated within the shaded column.
III. PROPOSED RECLAMATION MITIGATION SITE
A. Goals of Mitigation
The reclamation mitigation plan has the following goals:
• First, the removal of all non-native invasive species on site. The replacement of the non-
natives with native upland habitat will enhance the biodiversity of the area(23.15 acres,plus
3.94 acres,of reclaimed/re-created slope and 98.48 acres of nearly flat area);
• Second, the restoration of sufficient habitat on site such that there is a net gain in functions
and values;
• Third, eliminate or reduce environmental impacts from post-mining operations;
• Fourth, reclaim in a usable condition for post-mining end uses, which will include pads
potentially suitable for commercial and/or industrial development and open space;
Habitat Mitigation and Monitoring Plan 21
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
• Fifth, contour post-reclamation features and revegetation of disturbed areas to be
reclaimed as open space to minimize aesthetic, biological, hydrological impacts; and
• Sixth, reclaim the site as necessary to eliminate hazards to public health and safety.
The Planning Associates will supervise all aspects of the mitigation plan, including installation and
maintenance,and will conduct the reclamation mitigation monitoring.
B. Existing Functions and Values of the Mitigation Site
The 125.58-acre mitigation site currently supports limited native upland functions and values.
The reclamation mitigation site does lie on the edge of the MSHCP Criteria Cell slated for
conservation; however, it is separated and isolated from the Core habitat by I-15. The Project site
and footprint area offer moderate to low wildlife potential. Habitat fragmentation has already
occurred in the project vicinity as a result of I-15 and surrounding road construction and nearby
mining operations. There are no major corridors through the site. In addition, the Project site is
not subject to the provisions of the MSHCP by court action.
C. Present and Proposed Uses of Reclamation Mitigation Site
The reclamation mitigation site is currently an existing degraded unused vacant parcel of land that
is presently used by off road vehicles and that contains no Criteria Area or Narrow Endemic Plant
Species. The Project site is limited to occasional and seasonal visits by potential species and does
not encompass a substantial portion of their range.
The reclamation/re-created mitigation slope areas will eventually provide mature functions and
values at the completion of the 5-year monitoring of the site. The hydroseed that will be added to
the flatter pad areas will be later be removed to make way for either commercial and/or industrial
development. This future commercial development will be consistent with the Specific Plan
Amendment No. 3.
All on site drainage will be directed to first flush detention basins for detainment, settling, clean-
up and downstream discharge. All slopes will be re-vegetated with native plants and shrubs
combined with engineered concrete drains for erosion protection. No pit areas will be created
with the reclamation mitigation plan. No ponds will be created on site with reclamation
mitigation activities.
All clean-up operations will be conducted within one year of the termination of mining. Scrap
material, refuse, unwanted equipment, and surplus materials will be removed and disposed of at
an appropriate landfill site. Excess material piles and disturbed areas outside the potential
development areas will be re-graded for positive drainage, scarified, and revegetated. Process
plant facilities and equipment will be removed from the site.
Habitat Mitigation and Monitoring Plan 22
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26, 2006
Pacific Aggregates will comply with the requirements of the National Pollution Discharge
Elimination System by implementing a SWPPP that incorporates BMPs and a Spill Prevention,
Control, and Counter-measure Plan (SPCC) throughout the operation of the mining and
processing activities. During removal of plant equipment, tanks, and other facilities, any fuel or
oil spills, or other contaminants will be cleaned up immediately per the SPCC plan. After
reclamation mitigation operations are complete by 2013, there will be no contamination sources
remaining on-site.
All topsoil will be stockpiled, covered and posted `as such' prior to initial mining activities for
use during the reclamation mitigation phases. Please refer to Exhibit 6 for the topsoil stockpile
locations within the Project site. (Please note that the locations of the stockpiled topsoil may
change as a result of onsite field modifications.)
D. Description of Reclamation Mitigation Plan
The proposed project includes reclamation mitigation for impacts to those areas on site that are
being mined through the onsite revegetation of native plant species to 125.58 acres of the site (23.15
acres of re-created slope, 98.48 acres of nearly flat pad area and 3.94 acres of `Disturbed Area'
between the re-created slop and existing open space). The reclamation mitigation plan provides for
the re-creation of native habitat, and a native landscape plan depicting the reclamation mitigation
site planting is enclosed within the back pocket as Exhibit 7-Reclamation/Mitigation Landscape
Plan. The reclamation mitigation plan entails hydroseeding the re-created slopes areas with a native
erosion control seed palette inclusive of area-drifts of native plantings of trees and shrubs from
container plantings and also the planting of a native wildflower palette on the lower elevations
within the nearly flat pad areas. The native container plantings (shrubs and trees) will include, but
are not limited to: Toyon (Heteromeles arbutifolia), Valley Oak (Quercus lobata), California Bay
(Umbellularia californica), Manzanita (Arctostaphylos manzanita), Coyote Brush (Baccharis
pilularis), Ceanothus (Ceanothus 'Snowball), Rock Rose (Cistus purpureus), Holly Leaf Cherry
(Prunus ilicifolia), Purple Sage (Salvia leucophylla), and Sugar Bush (Rhus ovata) and Scrub Oak
(Quercus dumosa).
Habitat Mitigation and Monitoring Plan 23
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
' LOCATION OF
TOPSOIL STOCKPILES
1,\� ON SITE L REC AMW7ON GRAD/NC "d ' ! / i/r J ��i 1 I I , t i •y FIGURE 6
, t,r ' �. •w' � �; i i , \.ra,. i/••�r / '/ Ji ` r� t \•` ` .1 , fit- /J�/�-''•. '��-,I` � •1
Note: Topsoil Stockpiles May be
P P Y
Relocated as Required/or Needed
for Mining and Reshaping of Grades
�d .. \�� `\ 11 `"�; I r �'" "` _ o � � `� '!'oars� •` - - � - - - _ � .. � ',�
Topsoil � �' i1 Topsoil
Stockpilell ;, Stockpile
Process Plant `A' + + _.
Process Plant `�' I ;�',,•.x,,: J
17
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' J •T,'�;,�, `\ J� CIVIL ENGINEERING, PLANNING AND CONSTRUCTION MANAGEMENT
,. 1 -„c p \. ,.1 i :�y.•,� � / / �\ '� 1880 COMPTON AVENUE, SUITE 100^CORONA, CA. 92881-3370 951-734-2130 ^I
Af
NICHOLS ROAD SITE Z
RECLAMATION/MITIGATION
�;•.i �•_.�%� s ;' 1 ' l� %`,.�/!�'��\ I A/vf -'Ai( �1~� �\ �` �`,� s _ r' �--� �'1� �� F GURELANDSCA� ( PE PLAN
1 _ 1\�\ ♦ 1 1 j
IT
ALSO APPLY HAND BROADCAST/
HYDROSEED MIX"A" IN THESE
AREAS (REFER TO TABLE 4 }
OF HMMP)41
( �I
- SHRUBS AND GROUNDCOVER
PER NATIVE SLOPE SHRUB 1 / / 1/�?1
MOSAIC AS SHOWN TO THE �^•i�;i / � � �� '
1
ti���� ~' %;L�,�=; �'�-���- � �;I'i•I�- y__ 4� RIGHT & WITHIN TABLE 6 OF , 0 ® o o •
i/
.. + �� � ,���_ •�ti, -, _ ..:." THE HMMP. � 1 , ' ���/,� �i� (9� OO oQo 0
�,� \ v, �. .'� _ � t l� ,, �\ _ `a. i- '° \tom-t�/•-�,t \\ _\`r '� x/
`"DISTURBED
f
t-
6. AREA �,� '';.• `\�, ���`�/� � �� .m o O
,..,
'/ u
" x APPLY HAND BROADCAST/ \: \ �,�• ,�� ` ----� x O Q
HYDROSEED MIX"B"WITH \` ` O °.�� /
WILDFLOWERS IN THIS AREA `; �''' OF. t, f! Oo0 O
w /RECL4dsG9T/ON. '•...;t�\..- --.-••� O
(REFER TO TABLE 5 OF THE ``� 1
- +
HMMP)_ «396 SF.SAMPLE AREA APPROX
/: a._; y, , ` \\ h11T1GATION SHRUt3S: STOCK NO.PER.10 MIN.
` " ' ``�� --.���� / BOTANIC NAME TYPE
_y FIG
ARCTOSTAPHYLOS MANZANITA
BACCNARIS PILULARIS I GAL. 10
GEANOTHUS CONCHA 1 GAL, 2
1 v
O C STUS CRETICU9 NOWBALL' I GAL. 2
At FREMONTEDENDRON CALIFORJICA I GAL, I O
n
q ` { y u• N• ' ! 7( PRUNUS ILICIFOLIA I GAL. 2 O
RHOS OVATA I GAL. 1
.. �� ,,. ., ^~ .d,.= _ ��,••i _ L. ' � _ ' `J� O ROMNEYA COULTERI I GAL 2
✓� / O
SAME UCUS MEXIGANA I GAL 2
PS
ADDITIONAL SHRUBS: "
SALVIA GREGGII 'ALBA' I GAL. 5
SALVIA'ALLEN CHICKERING' I GAL. 5 R
\\ r \` `, \ • �. 1 'T - i - 4.�,,,�� �e 3"- , -,'' Q SALVIA GREGGII I GAL. 5
�. - ) `,'!t`i�►. !' �}',( u'�+'. ! I -�� ^� - ®-SALVIA 60N.'DAR4'5 CHOICE' I GAL. T
`� } i�� "l _�. ,,} �� � � I (�; � r, _ /I , ,,.�G�1N�pT1'1N5 (�PR-�s5u$ •' y
+ \:1 ' , \` �. \: APPLY HAND BROADCAST/ l:.fr ��' '� s O
HYDROSEED MIX"B"WITH ®—sAt VI n I_EtK Pt, !,!.a
W D FLOWERS IN THIS AREA r y ' s- NATIVE SLOPE SHRUB. �
IL _ - r
���� '* - m 'l` ti�f (REFER TO TABLE 5 OF THE __ _ MOSAIC
HMMP) ' J m
+-' To prevent erosion and to help prevent weed invasion,while in W
f I 's �' `- l — 1 • addition,to assist the site"blend"with the surrounding environment,
t o
• \ _ -_.�', � �.. V )f L .�-� a•- this native low-growing annual/perennial cover-crop will be applied
� as a hydrosced. The hydrosecd will flourish during the period leading I
up to the eventual development of mature chaparral-habitat.
Lbs/Ac. Plant Species
"A
rii- �t. . '15, 1.• !1 J r�.> ^��\ `.\ ''.lQr�''� , o
* 4 Phacelia campanularia
+ fi i + + +
6 Lotus purshianus
��,�'° ,�j/��'�f% � 'f�,�rjy/.'��, `•��`''." ,� ' 1 ' ' 2 Mimulusavrantiacus �
4 Lotus scoparius o
„• ,; Notes: °1. Planting Mosaic Based on Table 4 Native Slope Palette for Slope/Erosion
Control Upland Habitat Mitigation and Monitoring Plan (HMMP) by The
Planning Associates.
\'. 2. Plant Counts Calculated as 0.10 of the Per Acre Total Shown on Table&of
the HMMP by The Planning Associates.
SHRUB AND 3. Refer to Tables 4,5 and 6 of the HMMP by The Planning Associates for
GROUNDCOVER Additional Hydroseed Information.
PLANTING PLAN 4. Hydroseeding Shall be per the HMMP by The Planning Associates.
��ENG/VEERS Z
AANNpp CC �p��qN �
1800 AL[Ni`;EEJE a P 100•C=d 0288�-7770�"�851 NEB T 2130
In addition to the hydroseeded native upland habitat reclamation/re-creation areas, the reclamation
mitigation plan designates the removal of all non-natives throughout the site.
TABLE 3
PROPOSED RECLAMATION MITIGATION
TYPE OF AREAS OF TOTAL AREA OF
MITIGATION MITIGATION MITIGATION
NATIVE HYDROSEED (Temporary)
W/WILDFLOWERS
NEARLY FLAT 63.86 Ac.*
AREA `1' (North of
Nichols Road
NEARLY FLAT 34.62 Ac.*
AREA `2' (South of
Nichols Road)
Subtotal - 98.48 Ac.*
NATIVE HYDROSEED (Permanent)
W/EROSION CONTROL
RE-CREATED 23.15 Ac.
SLOPE
DISTURBED AREA 3.94 Ac.
Subtotal - 27.09 Ac
r
TOTAL 125.58 Ac.*
*Note:The 98.48 acres of temporary reclamation mitigation is assuming that no commercial development will occur
within the 8 year mining and reclamation horizon. If the commercial project site areas develop
concurrently with the phase out of mining,then the estimated mitigation area will be commensurately
reduced for the commercial development areas.
E. Ownership Status
The property is currently owned and/or operated by the Applicant, who has control over the
mitigation site. During the phase one for site preparation Scott Thayer is the contact for permission
to gain access to the site [Address: 19700 Fairchild, Suite 300, Irvine, CA 92612; phone (949) 486-
0550]. The City of Lake Elsinore and the California Department of Conservation, Office of Mine
Reclamation (OMR) may access the reclamation mitigation site at their will and are requested to
notify the applicant before entering.
F. Present and Proposed Uses of All Adjacent Areas
Most of the areas adjacent to the Project site are presently vacant, except for the very sparse single-
family rural lotting to the southeast of the project boundary line, the I-15 to the west and a local
high school is nearby(over 100' away) to the south.
Habitat Mitigation and Monitoring Plan 26
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26, 2006
There are future approved commercial and/or industrial development plans for the majority of the
project site.
G. Zoning
No zoning conflicts exist which would prevent implementation of any aspect of the proposed re-
creation/restoration program. The entire reclamation mitigation site is presently undeveloped
except for several existing dirt-mining roads that traverse the site. Access to the site is
accommodated by an existing dirt road located just off Nichols Road. The south portion of the
site noted, as Specific Plan Area B is quite low and was apparently mined for base and
aggregates during construction of I-15. The site is currently covered predominantly with non-
native vegetation. None of the project land is currently developed or improved with the
exception of Nichols Road and the site is presently zoned as Specific Plan (SP) Commercial and
Open Space.
IV. IMPLEMENTATION OF T111? REVEGETATION PLAN
A. Rationale for Expecting Implementation Success
The reclamation mitigation site is a good candidate for habitat reclamation and re-creation of native
plant habitat for several reasons. First, the native plant palette will replace the non-native plant
palette presently on site, and second, the Project Monitor (The Planning Associates, 3151 Airway
Ave., Suite R-1, Costa Mesa, CA 92627) will supervise the implementation of the mitigation plan,
therefore, adjustments to Project implementation can be made in the field as conditions dictate.
The plant palette proposed for the reclamation/re-creation program consists of native species that
either occur on site or are known to perform well in habitat reclamation/re-creation programs. The
tenacious quality of these plants, which allows their continued survival under less than favorable
"pioneer" conditions, also helps to ensure their establishment as part of the proposed reclamation
mitigation. Natural reproduction is expected within the re-vegetation areas.
The satisfaction of the final success criteria described in Section III is expected due to the fast
growing nature of many of the selected plants, the existing hydrology, and the presence of soils
that currently support many of the native plant species included on the plant palette proposed for
use in the reclamation/restoration habitat mitigation and monitoring program.
At anytime should any plant material (container or hydroseed) not germinate or exhibits
stress, the Project Monitor has the administrative authority to correct the situation by
choosing a different native plant and/or hydroseed mix that will better suit this location. The
Project Monitor also has administrative control over any amendments to this HMMP, as
needed,to implement the goals of this HMMP to meet the final success criteria.
B. Site Preparation Prior to,During and Post-Mining Process
Prior to mining and reclaiming undisturbed areas, specific plants and soil will be considered for
Habitat Mitigation and Monitoring Plan 27
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
salvage under the direction of a project landscape architect and botanist. Selected species of
plants will be marked and salvaged for transplanting to an area onsite ready for reclamation or
maintained in a plant holding area for future reclamation. Onsite vegetation will be removed and
either chipped for mulch or crushed with the soil salvaged and stockpiled for later use. Since the
project area was severely burned during the year 2003, most of the mature native vegetation was
destroyed. The project monitor, landscape architect cooperating with the project biologist will
determine the appropriateness of any"mature"plant salvage.
All topsoil will be stockpiled prior to initial mining activities for use during the reclamation
phases and native plant re-vegetation mitigation process.
No pit areas will be created with the reclamation mitigation plan; nor will ponds be created on
site with reclamation activities.
All clean-up operations will be conducted within one year of the termination of mining. Scrap
material, refuse, unwanted equipment, and surplus materials will be removed and disposed of at
an appropriate landfill site. Excess material piles and disturbed areas outside the potential
development areas will be re-graded for positive drainage, scarified, and re-vegetated. Process
plant facilities and equipment will be removed from the site.
C. Re-vegetation Methods
Upon completion of mining within specified areas, the slope will be ripped to break up
compacted areas. Site grading and site preparation will then take place as soon as practicable
during or after completion of mining activities. The stored and stockpiled surface top soil
material will be spread over the areas to be reclaimed to create islands of material with ridges
and furrows to aid in holding moisture and windblown seeds. Irrigation installation and
container plantings shall follow top soil installation with the hydroseeding to follow. The
broadcast of additional seed "will augment the re-vegetation effort". Commercially available
seeds (of local native-type species) will also be used to supplement the local seeds naturally
occurring on site. Seeding will take place between November and January to take advantage of
winter precipitation and eliminate or minimize the need for irrigation. The reclaimation
mitigation areas will be clearly staked and flagged to eliminate additional disturbance from
ongoing operations.
The site is currently vegetated with a depauparate community of chaparral and non-native
grasses. The `Disturbed Areas' will be broadcast seeded with the species and rates as
recommended with the planting/hydroseed tables. Note that the species seeded will be
augmented with native annuals as recommended in the baseline study. Only native seeds
tolerant to existing soil and rainfall conditions will be used.
The average precipitation in the area should be sufficient for seed germination and root
establishment of native species. Irrigation or fertilization will be minimized, as native seeds are
tolerant to existing temperatures, precipitation and soil conditions. Irrigation and fertilization
also tend to encourage non-native invasive species. Russian thistle (Salsola tragus) and other
Habitat Mitigation and Monitoring Plan 28
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
invasive plant material will be removed (manually) for the first two years after a portion of the
site is seeded or planted. During monitoring assessments, the biologist and landscape architect
will determine the need for further weeding and will coordinate with the responsible landscape
contractors for the specific work tasks required.
Table 4
Proposed Seeding Rates—Hand Broadcast/Hydroseed Mix `A' w/Erosion Control
(23.15 Acres of Re-created Slope+3.94 Acres of`Disturbed Area')
Pacific Aggregates/Nichols Canyon Reclamation Mitigation
Common Plant Name Species Name Seeding Min. P/G
Rate
(lbs.
/acre
Chamise Adenostoma 2 50/20
asciculatum
Rainbow manzanita Arctostaphylos 2 90/50
rainbowensis
Chaparral yucca Thick- Yucca whipplei 2 90/65
leaf ceanothus
Thick-leaf ceanothus Ceanothus crassifolia 4 98/70
Woolly-leaf ceanothus C. tomentosus 2 98/70
Small flower mtn. A. glandulosa 2 90/50
Manzanita
Thick-leak Yerba Santa Eriodictyon 1 40/40
crassifolium
California buckwheat Eriogonum 8 50/20
fasciculatum
Bedstraw Galium an ustifolium 1 80/30
Laurel sumac Malosma laurina 3 98/70
Bush monkey-flower Mimulus aurantacus 2 2/60
Scrub oak Quercus dumosa 1 NA
Sugar bush Rhus ovata 4 90/60
Toyon Heteromeles 5 95/40
arbuti olia
Holly-leaved cherry Prunus ilicifolia 4 90/50
Mission manzanita X lococcus discolor 2 90/50
- - Bulk#'s/ Min. %
acre PLS*
Cucamonga Brome Bromus carinatus 20.0 85
"Cucamonga"
Tomcat Clover Trifolium tridentatum 4.0 85
Small Fescue Vul is microstach s 8.0 85
Note: Seeding Rate is pure live seed or equivalent; Min.%PLS(Pure Live Seed)=Seed Purity x Germination Rate
f Source: White and Leatherman,S&S Seeds,2004.2005
Habitat Mitigation and Monitoring Plan 29
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
Table 5
Proposed Seeding Rates -Hand Broadcast/Hydroseed Mix `B' with Wild Flowers
(98.48 Acres** of`Nearly Flat Pad Areas')
Pacific Aggregates/Nichols Canyon Reclamation Mitigation
Common Plant Name Species Name Bulk Min. %
Seeding PLS*
Rate (lbs.
/acre)
White Yarro Achillea millefolium 0.50 85
Farewell to Spring Clarkia amoena 1.50 80
Chinese Houses Collinsia 1.0 85
hetero hylla
California Poppy Eschscholzia 3.5 85
calf fornica
Globe Gilia Gilia ca itata 1.0 80
Bird's Eyes Gilia tricolor 0.50 80
Tidytips La is platyglossa 0.5 60
Blue Flax Linum lewisi 1.50 85
Golden Lupine Lupinus microcarpus 1.0 70
densi onus
Arroyo Lupine Lu inus succulentus 5.0 90
Mission Red Mimulus aurantiacus 1.0 2
Monkeyflower punieceus
Five Spot Nemo hila maculata 1.0 75
Baby Blue Eyes Nemo hila menziesii 1.0 75
California Bluebells Phacelia 1.0 85
cam anularia
*Min.%PLS=(Pure Live Seed)=Seed Purity x Germination Rate
**Note:The 98.48 acres of temporary mitigation is assuming that no commercial development will occur
within the 8 year mining and reclamation horizon. If the commercial project site areas develop
concurrently with the phase out of mining,then the estimated mitigation area will be commensurately
reduced for the commercial development areas. (See Section VIII.—C. Funding Mechanism
and Reclamation Assurance)
Habitat Mitigation and Monitoring Plan 30
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
Table 6
Native Trees and Shrubs Planting Palette (23.15 Acres)
Pacific Aggregates/Nichols Canyon Reclamation Mitigation
Common Plant Species Name Stock Plant Approx. Total
Name Size Spacing No. per Plant
(min.) * Acre" Seed
Quantity
Trees:
Toyon Heteromeles 1 Gal. 40' o.c. 85/ac. 1,968
arbutifolia
Coast Live Oak Quercus agrifolia 5 Gal. Scattered 10/ac. 232
50' o.c.
Valley Oak Quercus lobata 5 Gal. 35' o.c. 10/ac. 232
California Bay Umbellularia 5 Gal. 30' o.c. 10/ac. 232
California
Shrubs:
Manzanita Arctostaphylos 1 Gal. Scattered 10 232
manzanita 10' o.c.
Coyote Brush Baccharis pilularis 1 Gal. 20' o.c. 100 2320
Ceanothus Ceanothus concha 1 Gal. Scattered 20 464
Santa Barbara Wild Ceanothus 1 Gal. Scattered 20 464
Lilac im ressus
Ceanothus Ceanothus 1 Gal. Scattered 20 464
`Snowball'
Rock Rose Cistus creticus 1 Gal. Scattered 20 464
Flannel Bush Fremontedendron 1 Gal. Scattered 10 232
Californica
Holly Leaf Cherry Prunus ilicifolia 1 Gal. Scattered 20 1 464
Sugar Bush Rhus ovata 1 Gal. Scattered 10 232
10' o.c.
Mantilla Poppy Romne a couleri 1 Gal. Scattered 20 464
Purple Sae Salvia leuco h lla 1 Gal. Scattered 20 464
Blue Elderberry Sambucus mexicana 1 Gal. Scattered 20 464
10' O.C.
To prevent erosion and to help prevent weed invasion and the blending of the site with the
surrounding environment during the period leading up the eventual development of mature
chaparral habitat these native low growing annuals/perennial cover crop will be applied as a
Hydroseed:
i
Habitat Mitigation and Monitoring Plan 31
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
Lbs/Ac Plant Species
4 Phacelia Campanularia
6 Lotus Purshianus
2 Minulus Avrantiacus
4 Lotus Scoparius
Weed Control
The purpose of the weed control plan is to reduce or eliminate the occurrence of non-native plant
species that may invade the site where previous mining activities have removed the native plant
cover and where active and natural re-vegetation is taking place. Non-native invasive species
(weeds) can compete with native plant species for available moisture and nutrients and
consequently interfere with re-vegetation of the site. Weed or non-native species of concern at
the site may include some or all of the following. Many of these species are common onsite and
will be difficult to control.
Avena barbata slender wild oat (common)
A.fatua wild oat(common)
Bromus diandrus ripgut brome (common)
B. madritensis red brome (common)
B. tectorum cheat grass, downy brome (occasional)
Cortaderia spp. pampas grass (uncommon)
Nicotiana glauca tree tobacco (uncommon)
The occurrence of weeds on site shall be monitored by visual inspection. The goal is to prevent
weeds from becoming established and depositing seeds in areas to be re-vegetated at a later date.
No areas will be allowed to have more than 20 percent of the ground cover provided by non-
native plant species. If inspections reveal that weeds are becoming or have established on site,
then removal will be initiated. Inspections shall be made in conjunction with re-vegetation
monitoring.
Weed removal will be accomplished through manual, mechanical or chemical methods
depending on the specific circumstances. For example, solitary or limited numbers of tree and
tree-like species will be manually removed (chopped) and the stumps sprayed with an approved
weed killer such as Round-Up. Smaller plants (wild oats and bromes) that cover more area may
be sprayed, scraped with a tractor, or chopped by hand, depending upon the size of the area of
infestation and the number of desired native plants in proximity or mixed in with the weeds.
Reports of inspections and weed control implementation shall be part of the annual re-vegetation
monitoring and kept on file by the operator and project monitor.
Habitat Mitigation and Monitoring Plan 32
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
D. Responsible Parties
The applicant will be responsible for implementing the reclamation mitigation project and may
assign this responsibility to an appropriate contractor, but will retain ultimate responsibility for
success. Overall supervision of the installation and maintenance contractor(s) will be the
responsibility of the Project Monitor.
The Project Monitor has the sole responsibility of determining when the HMMP will be amended,
as needed,to implement and ensure success of the mitigation planting. Any changes to the HMMP
will be reported annually within the annual mitigation and monitoring reports.
The installation contractor is responsible for completion of soil preparation, pre-planting weed
control, irrigation system installation,plant installation, and seeding. Once the Project Monitor has
verified the completion of the landscape installation, a 120-day maintenance period will begin. At
the end of this period the Project Monitor will certify completion.
Pacific Aggregates will hire a maintenance contractor for the duration of the five-year monitoring
period. Pacific Aggregates may change contractors at their discretion. The maintenance contractor
will service the mitigation site as necessary to ensure compliance with success criteria. The
maintenance contractor will perform all checklist items in a timely manner at the direction of the
project monitor.
E. Implementation Schedule
1
Installation of on-site reclamation mitigation will be concurrent with grading of the Project area.
The following Implementation Schedule Table 7 indicates timing of intended impacts to the City
of Lake Elsinore's and Department of Conservation's Office of Mine Reclamation jurisdiction,
mitigation grading, site preparation,and planting.
TABLE 7
IMPLEMENTATION SCHEDULE"
Month One Months Month Month Five
Two and Four
Three
Completion of Impacts to
Project Site thru Mining
-Mitigation Site Grading
Exotic Plant Eradication
Site Preparation
Irrigation Installation
Plant& Seed Installation
Habitat Mitigation and Monitoring Plan 33
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
Site grading, site preparation, irrigation installation, and plantings shall begin as soon as
practicable during or after completion of mining activities.
"The Installation Contractor is to provide the Project Monitor with a "Tentative
Installation Time-line with `start dates and completion dates' for `each major
implementation item' above prior to or concurrent with the reclamation/mitigation site
grading.
F. Prior to Site Preparation for Reclamation Mitigation
Contractor Education
Prior to the commencement of grading or any construction work, the applicant shall provide all
contractors involved with copies of this document. The applicant will review all aspects of the
plan that could concern the contractors including site protection, maintenance inspections,
landscape procedures and monitoring.
Access Control
Unauthorized motorized vehicles shall not enter the mitigation site. The Project Monitor with
the help of the Project's Engineer will delineate and"flag" the service access routes. Temporary
construction orange plastic "snow fencing" will be erected to keep the contractor within
delineated access routes. The contractor will notify the Project Monitor immediately if any
unauthorized persons or vehicles enter the reclamation mitigation site.
Restrictions
No debris, soil, silt, sand, rubbish, cement or concrete or washings thereof, oil or petroleum
products or washings thereof, shall be allowed to enter into or be placed in a manner where it
may be washed via rainfall or run-off into local creeks. When each phase of the Project is
completed, any excess materials or debris shall be removed from the work area.
Staging, storage and fueling areas for equipment and materials shall be located on upland sites.
The applicant shall make all Contractors aware of conditions that have been placed on the
reclamation mitigation activities of the project by the City of Lake Elsinore and the Department
of Conservation's Office of Mining and Reclamation. Copies of these documents shall be kept
on-site at all times by the onsite project supervisor, in the project construction office trailer.
Preparation of Planting Areas
Preparation of planting areas shall consist of removing trash and debris, clearing and controlling
exotic plants, trenching, preparing planting holes, installation of irrigation components, and
doing any other work necessary to make ready the area for planting.
Habitat Mitigation and Monitoring Plan 34
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
Exotic Vegetation Control
The predominance of non-native, invasive weed species throughout California has presented a
challenge to most native mitigation projects. Weedy species are opportunistic, rapidly
colonizing disturbed sites such as the mitigation site. This can lead to the displacement of native
species if the weeds are not properly treated.
Exotic plant species control is proposed for the reclamation mitigation site. If grading precedes
planting by more than a few months, it may be necessary to eradicate all undesirable exotic
plants that have become established prior to planting and seeding of the mitigation site. Exotic
vegetation control may include the use of herbicides. Eradication of weeds shall be performed
by hand, by the use of pesticides, or by other methods approved by the Project Monitor. Weed
control will be maintained throughout the reclamation monitoring period.
The type, quantity, and method of herbicide application will be determined by a California
licensed PCA who will inspect the site, write project recommendations and submit same to the
Project Monitor and contractor for approval. Pesticide recommendations shall include, but are
not limited to, the pesticides to be used, rates of application, methods of application, and areas to
which pesticides are to be applied. Weed species identified as invasive, particularly tenacious, or
those with wind-borne seed will be subject to the earliest control efforts. The Project Monitor
will be consulted on any pest control measures to be implemented.
Please also refer to Section"C", above, for further information on"Weed Control".
Exotic Removal Procedures
A licensed Pest Control Operator (PCO) may work under the supervision of the PCA who will
employ best management practices regarding the timing, quantity, and type of herbicide for each
species. The PCA will determine both immediate and follow-up herbicide application for each
species.
G. Reclamation Mitigation Planting Plan
Native upland habitat will be recreated in this reclamation mitigation plan. This plant
community was selected following field surveys conducted during three focused botanical
surveys performed onsite in 2005 and general knowledge of the local plant communities. Native
plant species have been selected to recreate a more typical native upland habitat that will blend in
with the surrounding site area. Planting shall consist of installing aboveground irrigation,
preparing planting holes, planting container stock, applying fertilizer and mulch, and
hydroseeding.
No planting shall be done in any area until the area concerned has been prepared in accordance
with the plans and presents a neat and uniform appearance satisfactory to the Project Monitor.
Habitat Mitigation and Monitoring Plan 35
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
Plant Palette
The proposed reclamation mitigation planting palette for the native upland habitats is designated
above in Tables 4, 5 and 6. The plant palette defines species required. For the seeded species,
pounds of seed per acre and total seed purity are also specified.
Sources
Container stock will be obtained from a regional local native plant and/or seed supplier who will
contract grow the plants from locally obtained propagules.
Container Plants
One-gallon container stock shall be utilized. All plant materials will be inspected by the
contractor and approved as healthy, disease free, and of proper size prior to planting. The
Project Monitor will inspect all reclamation mitigation planting prior to their installation to
ensure their health. Overgrown and/or root-bound container stock will be rejected.
Mycorrhizal Fungi
Mycorrhizae are specialized fungi found on plant roots. A symbiotic relationship exists between
plant roots and mycorrhizae wherein the plants benefit from the increased ability to take up
nutrients and withstand drought when mycorrhizae are present. This relationship is essential to
the growth rate, well-being, and longevity of native plant communities. Plant utilization of
mycorrhizal fungi markedly increases the success of reclamation mitigation on disturbed or
degraded lands. All appropriate container-grown plants, other than those known to be non-host
species, shall be inoculated with mycorrhizal fungi before delivery to the Project site.
Flagging of Plant Locations
Container stock will be laid out in accordance with the planting plan exhibit. Prior to container
stock installation, the installation contractor with 21-inch flag stakes will flag individual planting
locations in the field. The flags will be color coded as to species. The Project Monitor will check
and approve the layout of the flag stakes prior to installation of the reclamation mitigation
plantings. A list of species with their appropriate color code will be provided to the installation
personnel prior to plant installation.
Replacement Planting
The installation contractor shall replace all container stock plants terminally diseased or dead
within 120 days of installation.
The maintenance contractor on an annual basis as required thereafter will replace plants. The
replacement plants will be of the same species, spacing and size as specified for plants being
replaced. The reason for failure will be determined, if possible, and appropriate measures taken
Habitat Mitigation and Monitoring Plan 36
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
to remedy the cause. Contingency measures, rather than plant replacement, may be implemented
if determined appropriate by the Project Monitor. The Project Monitor can make adjustments to
Project implementation in the field, as conditions dictate. The Project Monitor prior to
implementation must approve any changes to the Planting Plan. Any changes approved by the
Project Monitor will be documented in the next regularly scheduled mitigation monitoring report
to the City of Lake Elsinore and Department of Conservation's Office of Mine Reclamation.
Seeding Method
The reclamation mitigation site will be hydroseeded immediately after installation of the
container stock. The ground will be thoroughly wetted prior to hydroseeding. Hydroseeding
will proceed after the Project Monitor has certified that site preparation work has been
completed. Hydroseeding will be performed only during low wind conditions.
Hydroseeding will consist of a hydraulic application of a homogenous slurry mixture consisting
of water, seed, organic soil stabilizer and cellulose wood fiber mulch on the revegetation area.
Seeding Guarantee
Once hydroseeding has occurred, the contractor will be responsible for supplying sufficient
irrigation to adequately germinate and establish the applied seed. Areas where inadequate seed
establishment has taken place will be re-sprayed or re-seeded within 30 days as determined by
the Project Monitor.
Planting Method for Container Stock
All container plants will be planted in a hole at least twice the diameter of the container and
twice the depth.
Container stock will be thoroughly watered the day before planting. The container will be
upended into the palm of the hand to avoid damage to the root structure and placed in the
planting hole. The top of the root ball will be set one inch above finish grade. The planting hole
will be backfilled with native soil. Individual plants will be fertilized at time of installation.
A mulched, weed-free watering basin will then be constructed around each container plant. A
three-inch high, hand-compacted earth berm will extend approximately 15 inches from the base
of the plant. Mulch will be from 3 to 4 inches thick and must not come in contact with the stem
of the plant. The watering basin will be maintained until the plants are no longer irrigated.
Container stock will be watered immediately after installation.
Pruning and Staking
There will be no pruning of plant materials or staking of trees.
Habitat Mitigation and Monitoring Plan 37
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
H. Irrigation Plan
Irrigation is to be used solely for the purpose of establishing the plants at the reclamation
mitigation site and is of a temporary nature. The goal of the irrigation program is to obtain
germination and growth with the least amount of irrigation. Frequent irrigation encourages weed
invasion and leaches nutrients from the soil.
The critical period for irrigation is during the first winter and early spring following planting.
During this time, roots are not well established and an unseasonable drought can cause high
mortality. During dry periods between plant installation and mid-April, the contractor will
regularly inspect soil moisture. Watering during the summer dry season will occur when
required.
The reclamation mitigation site will initially be supported by a temporary automatic irrigation
system. The container stock will be irrigated as long as necessary to establish the root systems in
the native soils, probably one or two summers. The main line will be installed below ground.
All slope portions of the system will be installed aboveground for ease of removal and
inspection.
After the initial plant establishment period, water will be applied infrequently and only as
required to prevent the mortality of plants and seedlings. The irrigation methods employed will
attempt to mimic wet rainfall years by incorporating evenly spaced, infrequent, deep applications
of water.
Once the plant material is established and does not require supplemental irrigation, the
aboveground portions of the system will be removed. The Project Monitor will determine when
the temporary irrigation system will be removed.
V. MAINTENANCE DURING MONITORING PERIOD
A. Maintenance Activities
The purpose of this program is to ensure the success of the reclamation mitigation planting.
Maintenance will occur over the five-year life of the Project. The Project Monitor (The Planning
Associates, 3151 Airway Ave., Suite R-1, Costa Mesa, CA 92626) will monitor all aspects of
the reclamation mitigation in an effort to detect any problems at an early state. Potential
problems could arise from irrigation failure, erosion, vandalism, competition from weeds, and
unacceptable levels of disease and predation.
These maintenance guidelines are specifically tailored for native plant establishment. The
maintenance personnel will be fully informed regarding the habitat re-creation/enhancement
program so they understand the goals of the effort and the maintenance requirements. A
professional with experience and knowledge in native plant habitat re-creation/enhancement
maintenance will supervise all maintenance personnel.
Habitat Mitigation and Monitoring Plan 38
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
For a period of 120 days following completion of the planting installation, the landscape
contractor will be responsible for the care of the plantings. The purpose of the establishment
period is to ensure continuity between the installation of the plant material and its short-term
maintenance. The contractor's presence during this period is proven to increase Project success.
The contractor will be able to control the spread of weed species and identify any efforts
necessary to ensure the health and survival of the plantings.
Following the 120-day establishment period, the Project will be evaluated for health of plant
material, and if judged satisfactory by the owner, the establishment period will be considered
concluded, and the long-term habitat maintenance program will begin. A different contractor
may implement this period of maintenance; the Project Monitor, however, will continue to
review the Project's success.
Damage to plants, irrigation systems, and other facilities occurring as a result of unusual weather
or vandalism within the low-flow channel will be repaired. The applicant recognizes that failure
to meet success criteria shall result in the requirement to replace that portion of failed mitigation.
The applicant, however, shall not be held responsible for any replacement of planted vegetation
damaged or destroyed by any natural disaster or by any storm/flood event.
General Maintenance
The Contractor will initially prepare for the Project Monitor a "Maintenance Schedule" that will
indicate the days of the week/month that the maintenance staff will be on site for maintenance.
The contractor will perform the following tasks as general maintenance duties:
• Plant Inspection
• Irrigation Water Volume and Frequency
• General Irrigation System Inspection
• Trash and Debris Removal
• Weed Control
• Pest Control
• Plant Replacement
Plant Inspection
After initial planting, the Project Monitor will check the reclamation mitigation site bi-monthly
for the first three months, and monthly through the 18th month. Thereafter, the plants shall be
inspected on a quarterly basis.
The Project Monitor shall prepare a written memorandum to the Client after each monitoring site
visit listing problems and recommended remedial measures. A copy of this memorandum shall
be sent to the contractor for implementation. These memoranda shall focus on any and all
problems concerning Project horticulture including, weeding, irrigation scheduling, debris
removal, pest control, etc and recommended corrective measures. The Project Monitor shall be
Habitat Mitigation and Monitoring Plan
39
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
responsible for recommending all remedial measures to be implemented in memoranda sent to
the maintenance contractor. Remedial measures not addressed will be identified in the next
regularly scheduled mitigation monitoring report to the City of Lake Elsinore and Department of
Conservation's Office of Mine Reclamation.
Irrigation
The contractor shall be responsible for applying sufficient water to adequately establish new
plant materials, and germinate and establish the applied seed. Irrigation water will be applied in
such a way as to encourage deep root growth (periodic deep irrigation versus frequent light
irrigation).
Irrigation System Inspection
The contractor will be responsible for the regular maintenance and repair of all aspects of the
irrigation system. Poorly functioning or non-functioning parts shall be replaced immediately so
as to not endanger the plantings.
General system checks shall be conducted a minimum of weekly for the first month after
installation to assure system is functioning correctly and hydroseed coverage is adequate.
Thereafter, the system shall be checked monthly by the maintenance contractor, except during
periods when the irrigation system is not in operation or as recommended by the Project Monitor.
Any erosion caused by the contractor's inadequate maintenance or the maintenance contractor at
his/her expense, as determined by the Project Monitor, will repair operation of irrigation
facilities.
Trash and Debris Removal
The reclamation mitigation site will be kept free of trash and debris during the monitoring period.
Care will be taken so that trash removal activities minimize or avoid impacts to plantings in the
reclamation mitigation site. Inorganic debris that is generated on the site will be removed during
routine maintenance visits. All dead limbs and tree fall shall be left in place in the mitigation
site. Weed debris shall be removed from the Project area and disposed of as permitted by law.
Weed Control
Weed eradication will be conducted as necessary to minimize competition that could prevent the
establishment of native species. The crucial period for weed control is the first two years of
project establishment. As weeds become evident, they should be immediately removed by hand
or controlled with an appropriate herbicide as determined by a licensed PCA.
Weed control shall occur monthly for the first 12 months and not less than monthly through the
first two years. The Project Monitor may contact the maintenance contractor for any required
weed work. All maintenance contractor personnel will be trained to distinguish weed species
from native vegetation.
Habitat Mitigation and Monitoring Plan 40
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26, 2006
Maintenance of reclamation mitigation areas shall not include the removal of native vegetation or
sediment. Maintenance of all basin fore-bays does not require City of Lake Elsinore and
Department of Conservation's Office of Mine Reclamation approval.
Examples of weeds to be controlled include,but are not limited to:
• Annual Beard grass (Polypogon monspeliensis)Native to southern and western Europe
• Arundo/giant reed(Arundo donax)Native to Europe
• Artichoke thistle/cardoon (Cynara cardunculus)Native to Mediterranean region
• Bermuda grass (Cynodon dactylon)Native to Africa
• Biennial mustard(Hirschfeldia incana)Native to Mediterranean region
• Black mustard(Brassica nigra)Native to Europe
• Canary Island date palm (Phoenix canariensis)Native to Canary Islands
• Castor bean(Ricinus communis)Native to Europe
• Cootamundra wattle (Acacia baileyana)Native to Australia
• Eucalyptus (Eucalyptus spp.) Native to Australia
• Fennel (Foeniculum vulgare)Native to southern Europe
• Foxtail chess (Bromus madritensis)Native to Europe
• Hottentot fig(Carpobrotus edulis)Native to South Africa
• Italian ryegrass (Lolium multiflorum)Native to Europe
• Italian thistle (Carduus pycnocephalus) Native to Mediterranean region
• Kikuyu grass (Pennisetum clandestinum)Native to Africa
• Pampas grass (Cortaderia jubata; C. selloana)Native to South America
• Peruvian pepper tree (Schinus molle)Native to South America.
Ripgut brome (Bromus diandrus)Native to Europe
• Russian thistle (Salsola tragus)Native to Eurasia
• Slender oats (Avena barbata)Native to southern Europe
• Soft chess (Bromus hordeaceus)Native to Eurasia
• Tamarisk(Tamarix ramosissima, T.parviflora)Native to east Asia
• Tree tobacco (Nicotiana glauca)Native to South America
• Umbrella sedge (Cyperus involucratus)Native to east Africa
• Water bent grass (Agrostis viridis)Native to Europe
• Wild oat(Avena fatua)Native to Europe
Other Pest Control
Young trees and shrubs will be monitored for signs of disease and/or insect damage and treated
as necessary. Infestations will not be treated unless more than 10-percent of the trees in a
planting area show significant damage from insects, vertebrate pests, and/or diseases. Specific
recommendations will be made by a licensed PCA as required by law. The Project Monitor will
be consulted on any pest control measures to be implemented.
I
Habitat Mitigation and Monitoring Plan 41
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
Plant Replacement
Any replanting to replace dead or dying container stock will be conducted following the same
procedures described in the original contractor specifications. The Project Monitor will
determine the proper container stock, site preparation, and timing.
The installation contractor will be responsible for replacing any dead or terminally diseased
container stock plants at least one month prior to turning the Project over to the maintenance
contractor. The maintenance contractor will be responsible for replacement of plants determined
by the Project Monitor to be dead or terminally diseased.
Reseeding
If there are any areas where inadequate seed establishment has taken place, these areas will be
reseeded on an annual basis, which shall be done between November 1st and March 30th to take
advantage of the winter rainy season.
Fertilization
If nutrient deficiencies are observed during maintenance and monitoring, the Project Monitor, to
speed initial growth or as a remedial measure, may specify applications of slow-release pellet
fertilizer. These applications shall occur at the onset of the rainy season following the
manufacturer's recommendations. Fertilizer will not be applied other than under the direction of
the Project Monitor.
Pruning
No post-installation pruning is necessary unless otherwise specified by the Project Monitor.
Dead wood shall be left on trees or where it has fallen as it plays an important role in habitat
creation and soil formation.
Staking of Trees
Staking of trees is to be avoided unless determined necessary by the Project Monitor. All stakes
shall be removed before the completion of the five-year monitoring period, or earlier as
determined by the Project Monitor. All stakes shall be removed from the reclamation mitigation
site by the contractor and disposed of legally.
B. Responsible Parties
Pacific Aggregates will be responsible for financing and carrying out maintenance activities.
Pacific Aggregates may assign the maintenance responsibilities to an appropriate contractor, but
will retain ultimate responsibility for maintenance of the reclamation mitigation site.
Pacific Aggregates, together with the Project Monitor, will be responsible for the overall
supervision of the maintenance contractor. The installation contractor shall have the
Habitat Mitigation and Monitoring Plan 42
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June 19,2006,Amended August 31, 2006 and September 26,2006
responsibility for the maintenance all of reclamation mitigation site for 120 days after
installation, or until he receives final certification from the Project Monitor. The maintenance
contractor shall be responsible for the five-year maintenance program requirements once the
installation contractor's work has been certified as complete.
C. Maintenance Schedule
The restoration maintenance and monitoring program will begin with the construction process
and continue for five years following the completion of plant installation. Table 8, below
explains the details of the maintenance schedule guidelines
Table 8
MAINTENANCE INSPECTION SCHEDULE GUIDELINES
Year
Maintenance Task
1 2 3 4 5
Plant Inspection Monthly 1 st Monthly Quarterly Quarterly Quarterly
12 months; through 18th
bi-weekly month;
next 2 quarterly
months; thereafter
monthly
thereafter
Irrigation System Weekly 1st Monthly As Required N/A N/A
Inspection month; bi-
weekly
thereafter, or
as required
Trash and Debris Quarterly Quarterly Quarterly Quarterly Quarterly
Removal
Weed Control Monthly Monthly Quarterly Quarterly Quarterly
Pest Control Monthly Bi-monthly Quarterly Quarterly Quarterly
Plant Replacement Annually Annually Annually Annually Annually
Fertilization(if Annually Annually N/A N/A N/A
necessar
1
Habitat Mitigation and Monitoring Plan 43
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
VI. MONITORING PLAN
A. Performance Criteria
1. Target Functions and Values
The reclamation reclamation /recreation of the 98.48 acres of upland habitat will result in the
establishment of moderate to high quality native habitat. This reclamation mitigation is expected
to result in the enhancement of the relatively low to moderate functions presently existing on site.
Performance criteria for the planted species within the reclamation mitigation site shall be a
minimum of 50 percent cover the first year and 90 percent cover by the end of the fifth year.
2. Target Acreage to be Reclaimed/Re-created
Implementation of the reclamation mitigation plan will result in the reclamation/re-creation of
125.58 acres of the total 204.75-acre site. It is likely that the respective mitigation hydroseed for
the 27.09 acres of recreated slope and 98.48 acres of very nearly flat area will increase the quality
of habitat type that is presently there on site.
The success of the reclamation mitigation is defined as the restoration of a functional ecosystem.
Success is usually measured by percent coverage by target species. While a fully successful
reclamation mitigation plan might be viewed as one that results in 100-percent coverage, such
coverage is unlikely. Natural habitats rarely exhibit 100-percent coverage, but rather include a
considerable proportion of open spaces. While this monitoring program uses percent coverage
criteria, it is noted that determination of successful coverage is expected to be relative to other
similar native habitats typical of the region.
The means of determining successful reclamation mitigation is by a series of measurements for
natural recruitment, exotic species cover, and cover by native species. All of these, except weed
cover, should increase over time. Weed cover should be the opposite; it should decrease with time.
After the initial planting effort has been completed, the reclamation mitigation site will be
monitored as follows by the Project Monitor:
o On a monthly basis for the first 18 months
o Quarterly for the remainder of the monitoring period.
Qualitative surveys, consisting of a general site walkover and habitat characterization, will be
completed during each monitoring visit. General observations, such as fitness and health of the
planted species, pest problems, weed establishment, mortality, and drought stress, will be noted in
each site walkover. The Project Monitor will determine remedial measures necessary to facilitate
compliance with performance standards.
Quantitative data will be collected annually using accepted vegetative sampling methods in order
to evaluate survivorship, species coverage, and species composition.
Habitat Mitigation and Monitoring Plan 44
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
In the event that plantings should fail to meet the specified requirements, compliance will be
ensured by the performance of either or both of the following remedial procedures by the
contractor on an as-needed basis as directed by the Project Monitor: (1) replacing unsuccessful
plantings with appropriate-sized stock or seed mixes to meet stated cover or survival requirements,
and/or (2) performing maintenance procedures to ensure the site conditions are appropriate (e.g.,
non-native species removal). Remedial actions in planting areas shall be based on detailed
investigations (such as soil tests and excavations of failed plantings to examine root development)
to determine causes of failure. If substantial non-compliance with the performance occurs, the
applicant will consult the City of Lake Elsinore and California Department of Conservation,
Office of Mine Reclamation to determine whether corrective measures and an extension of the
five-year monitoring period will be necessary. The initial monitoring will be conducted in
September following the first growing season after installation.
Monitoring of Natural Regeneration
Natural recruitment of native plant species will be documented during the monitoring surveys.
Natural recruitment is expected to be low during the first few years of plant establishment, with the
possible exception of exotic species that may colonize from adjacent seed sources. Some natural
recruitment of woody species is expected to occur during the five-year monitoring period. The
occurrence of these volunteer woody species will be recorded during the monitoring to the extent
possible.
Standard Vegetation Monitoring procedures will be as follows:
• First-Year Monitoring. During the first year, monitoring will occur every month. One
quantitative survey will be performed to determine planted species' growth performance.
The following performance standards will be achieved at the end of the first year:
-- 80-percent survival of container plants;
-- 25-percent coverage of native species (5-percent deviation allowed);
-- Less than 5-percent cover of non-native species
Replanting will be performed as necessary, during the appropriate planting period, with the
appropriate-sized stock or by seeding to ensure that these performance standards are
achieved. If substantial non-compliance with the performance occurs, Pacific Aggregates
will consult with the City of Lake Elsinore and California Department of Conservation, to
determine whether corrective measures and an extension of the five-year monitoring period
will be necessary. At the end of the first year, a report summarizing the performance of the
restored habitat will be submitted to the Responsible Parties for distribution to the City of
Lake Elsinore and California Department of Conservation, Office of Mine Reclamation.
Habitat Mitigation and Monitoring Plan 45
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
• Second-Year Monitoring. During the second year, monitoring will occur on a quarterly
basis. One quantitative survey will be performed to determine planted species' growth
performance. The following performance standards will be achieved at the end of the
second year:
-- 80-percent survival of container plants;
-- 40-percent coverage of native species (<5-percent deviation allowed);
-- Less than 5-percent cover of non-native species
Replanting will be performed as necessary, during the appropriate planting period, with the
appropriate-sized stock to ensure that these performance standards are met. If substantial
non-compliance with the performance standards listed above occurs, the party responsible
(i.e. the applicant) will consult with the City of Lake Elsinore and California Department
of Conservation, Office of Mine Reclamation to determine whether corrective measures
and an extension of the five-year monitoring period will be necessary. At the end of the
second year, a report summarizing the creation/enhancement site performance will be
submitted to Pacific Aggregates for distribution to the City of Lake Elsinore and California
Department of Conservation, Office of Mine Reclamation.
• Third-Year Monitoring. During the third year, monitoring will occur quarterly. One
quantitative survey will be performed to determine planted species growth performance.
The following performance standards will be achieved at the end of the year:
-- 80-percent survival of container plants;
-- 60-percent coverage of native species (<5-percent deviation allowed);
-- Less than 5-percent cover of non-native species
Replanting will be performed as necessary with the appropriate-sized stock to ensure that
these performance standards are achieved. If substantial non-compliance with the
performance standards listed above occurs, the party responsible for the site Pacific
Aggregates will consult with the City of Lake Elsinore and California Department of
Conservation, Office of Mine Reclamation to determine whether corrective measures and
an extension of the five-year monitoring period will be necessary. At the end of the third
year, a report summarizing the creation/enhancement site performance will be submitted to
the Responsible Parties for distribution to the City of Lake Elsinore and California
Department of Conservation, Office of Mine Reclamation.
• Fourth Year Monitoring. During the fourth year, monitoring will occur quarterly. One
quantitative survey will be performed to determine planted species' growth performance.
The following performance standards will be achieved at the end of the third year:
}
Habitat Mitigation and Monitoring Plan 46
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
-- 80-percent survival of container plants;
-- 75-percent coverage of native species (<5-percent deviation allowed);
-- Less than 5-percent cover of non-native species
Replanting will be performed as necessary, during the planting period, with the appropriate-
sized stock to ensure that these performance standards are achieved. If substantial non-
compliance with the performance standards listed above occurs, the party responsible (i.e.
the applicant) will consult with City of Lake Elsinore and California Department of
Conservation, Office of Mine Reclamation to determine whether corrective measures and an
extension of the five-year monitoring period will be necessary. At the end of the fourth year,
a report summarizing the creation/enhancement site performance will be submitted to Pacific
Aggregates for distribution to the City of Lake Elsinore and California Department of
Conservation, Office of Mine Reclamation.
• Fifth Year Monitoring. During the fifth year, monitoring will occur quarterly. One
quantitative survey will be performed to determine planted species' growth performance.
The following performance standards will be achieved at the end of the year:
-- 90-percent survival of container plants;
-- 90-percent coverage of native species (<5-percent deviation allowed);
-- Less than 5-percent cover of non-native species
Replanting will be performed as necessary, during the appropriate planting period, with the
appropriate-sized stock to ensure that these performance standards are achieved. If substantial
non-compliance with the performance standards listed above occurs, the party responsible for
the site (i.e. the applicant) will consult with the City of Lake Elsinore and California
Department of Conservation, Office of Mine Reclamation to determine whether corrective
measures and an extension of the five-year monitoring period will be necessary. At the end of
the fifth year, a report summarizing the reclamation planting site performance will be
submitted to Pacific Aggregates distribution to the City of Lake Elsinore and California
Department of Conservation, Office of Mine Reclamation. Table 9, below, summarizes the
Density Performance Criteria for Final Reclamation Success:
1
Habitat Mitigation and Monitoring Plan 47
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
Table 9
DENSITY PERFORMANCE CRITERIA FOR
FINAL RECLAMATION SUCCESS
YEAR CRITERIA
Survival of container Coverage of natives Coverage of non-natives
plants
Year 1 80% 25% <5%
Year 2 80% 40% <5%
Year 3 80% 60% <5%
Year 4 80% 75% <5%
Year 5 90% 90% <5%
B. Monitoring Methods
Monitoring will assess the attainment of annual and final success criteria and identify the need to
implement contingency measures in the event of failure. Monitoring methods include field
sampling techniques that are based upon the California Native Plant Society field sampling
protocol.' Please refer to A Manual of California Vegetation (Sawyer and Keeler-Wolf, 1995) for
further details on this sampling method. Additionally, the monitoring methods will include 100-
foot long transects conducted every 100 feet along the reclamation mitigation areas.
Monitoring
Monitoring shall be conducted on a scheduled/frequent basis (as determined above i.e. monthly,
quarterly, etc.) and to be completed by the Project Monitor. The Project Monitor shall perform
monitoring. Continuity within the personnel and methodology of monitoring shall be maintained
insofar as possible to ensure comparable assessments. Records will be kept of mortality and other
problems, such as insect damage. The Project Monitor will also identify other potential site
problems, such as weed infestation and soil loss. Remedial measures undertaken will be
referenced in the annual report to the City of Lake Elsinore and California Department of
Conservation, Office of Mine Reclamation.
Vegetation Sampling Techniques
Sampling will be conducted using the point-intercept sampling method. This sampling method is
based on a 50-meter long point-transect centered in a 50-meter by 2-meter belt plot. At each 0.5-
meter interval along the transect (beginning at the 50-cm mark and ending at 50-meter), a point
is projected vertically into the vegetation. Each species intercepted by the point is recorded,
providing a tally of hits for each species in the herbaceous, shrub, and tree canopies. Percent
cover for each species, according to vegetation layer (herb, shrub, and tree) can be calculated
1 Sawyer, John 0. and Todd Keeler-Wolf. 1995. A Manual of California Vegetation. California Native Plant
Society.
Habitat Mitigation and Monitoring Plan 48
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
from these data. A list of all additional species within the 250 square meter belt is subsequently
made.
Four 2-meter by 50-meter long transects per acre will be used to monitor the development of the
mitigation. The various transects will be randomly located for the first sampling event and
permanently marked to facilitate their use in subsequent years.
Samples of proposed transect data sheets are provided in Appendix `A'.
Photo-Documentation
Several permanent stations for photo-documentation will be established. Photos shall be taken
each monitoring period from the same vantage point and in the same direction each year, and
shall reflect material discussed in the annual monitoring report.
Final Success Criteria Resolution
When the five-year monitoring period is complete, and if the permittee believes all performance
standards have been met, the permittee shall request written confirmation from the City of Lake
Elsinore and California Department of Conservation, Office of Mine Reclamation verifying final
success criteria have been met. For each year in which the permittee fails to meet the
performance standards, one additional year of re-vegetation and monitoring shall be required
using the same performance criteria as listed for year five. At the City of Lake Elsinore's and
California Department of Conservation's, Office of Mine Reclamation discretion, if the final
success criteria are not met, the applicant shall prepare an analysis of the cause(s) of failure(s)
and propose remedial actions for approval.
The Biological Monitoring Plan will be an ongoing effort to assess the results of re-vegetation on
the disturbed areas of the site. The monitoring plan conducted by a qualified biologist or
landscape architect will be followed regularly and annually reported to the City of Lake Elsinore
and California Department of Conservation, Office of Mine Reclamation to monitor and assess
completed revegetated areas and areas where revegetation is being planned or just beginning. A
Biological Monitoring Report submitted by Pacific Aggregates to the City will be part of the
overall compliance with conditions. Revegetated areas will be assessed utilizing success criteria
with successful methods being implemented for future revegetation. Pacific Aggregates will
notify the City with an official letter of completion of the reclamation activities and initiating the
5 year restoration and reporting program or sooner if the success criteria is achieved earlier than
the estimated 5 year program.
Revegetation efforts will be monitored annually for a maximum of five years after seeding or
until revegetation meets the success criteria and is self-sustaining. Revegetation observations
will be summarized annually as part of the overall-monitoring program. This schedule may be
revised depending on the results of the revegetation effort and the concurrence with the success
criteria. Monitoring and revegetation results will be reported to the City in an annual monitoring
report presented to the City by June 1 of each year during the 5 year monitoring program.
I
Habitat Mitigation and Monitoring Plan 49
g g
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
As stated above, final success criteria will not be met until a minimum of two years after all
human support, including irrigation, has ceased. Should the mitigation effort meet all goals prior
to the end of the five-year monitoring period, the City of Lake Elsinore and California
Department of Conservation, Office of Mine Reclamation, at their discretion, may terminate the
monitoring effort and release the bond.
The applicant recognizes that failure to meet success criteria may result in the requirement to
replace that portion of failed mitigation, unless the failure was the result of an "Act of God"
(e.g., fire, flood, etc.) that would likely have destroyed the original vegetation for which
reclamation mitigation is being performed.
After the five-year establishment period is satisfactorily completed, the applicant is not required
to replace failed mitigation due to an "Act of God" that would likely have destroyed the original
vegetation for which reclamation mitigation is being performed.
C. Annual Reports
At the end of each of the five monitoring period growing seasons, an annual report will be prepared
for submittal to the City of Lake Elsinore and California Department of Conservation, Office of
Mine Reclamation by June 1 st of each year for the duration of the monitoring period. These
reports will assess both attainment of yearly target criteria and progress toward final success
criteria. These reports shall include the survival of tree and shrub container stock. The number of
species of plants replaced, an overview of the reclamation mitigation effort, the method used to
assess these parameters, and photos from designed photo stations shall also be included.
These reports will consist of 3(±1) pages (not including photos, tables, etc.) and will include the
following:
• A list of names, titles, and companies of all persons who prepared the content of the
annual report and participated in monitoring activities for that year;
• A copy of any permits and their attachments including Special Conditions and
subsequent Letters of Modification to these Conditions;
• A quantitative analysis of all qualitative monitoring data;
• An analysis of all qualitative monitoring data;
• Copies of all monitoring photographs;
• Maps identifying monitoring areas,transects,planting zones, etc. as appropriate.
Habitat Mitigation and Monitoring Plan 50
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
D. Schedule
Creation of the habitat reclamation mitigation site will occur in conjunction with site grading and
reclamation mitigation site planting will occur immediately thereafter. According to the Post-
Mining Reclamation Phasing Schedule, Phase 1 Reclamation Mitigation will be initiated
approximately in year 2009 following the completion of the third and final phase of mining.
Post-mining clean up will occur with the replacement of adaptable vegetative soils previously
stockpiled. Initial planting, hydroseed and temporary irrigation (if required) will be installed
according to the landscape architect/biologist and this Habitat Mitigation and Monitoring Plan.
Planting will be conducted prior to the rainy season to take advantage of natural precipitation
during the winter and spring months. Monitoring-reports will be provided to the City of Lake
Elsinore and California Department of Conservation, Office of Mine Reclamation according to
the reporting schedule.
It is anticipated that all reclamation mitigation site vegetation will be installed at the same time and
will be on a common monitoring cycle.
VII. COMPLETION OF RECLAMATION MITIGATION
A. Notification of Completion
When the initial monitoring period is complete, and if the applicant believes final success criteria
have been met, the applicant shall request written confirmation from the City of Lake Elsinore and
California Department of Conservation, Office of Mine Reclamation verifying final success
criteria have been met.
In five years, should the vegetation not sufficiently be established to meet the final success criteria,
vegetation monitoring will be conducted until success criteria have been met for a minimum of two
years without human intervention.
B. City of Lake Elsinore and California Department of Conservation, Office of Mine
Reclamation Confirmation
Following receipt of the report, the applicant will, at the request of the City of Lake Elsinore and
California Department of Conservation, Office of Mine Reclamation, provide access and
guidance through the Project site to confirm the adequate completion of the reclamation mitigation
effort.
VIII. CONTINGENCY MEASURES TO MONITORING AND MAINTENANCE
A. Initiating Procedures
Reclamation mitigation efforts will be monitored pursuant to SMARA requirements and
according to the City approved Reclamation Plan. Pacific Aggregates will be required under
SMARA (Public Resources Code Section 2207) to submit an annual report. SMARA (Section
Habitat Mitigation and Monitoring Plan 51
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
2774(b)) requires the lead agency (the City of Lake Elsinore) to conduct an inspection of the
mining operation within six months of receipt of the required Annual Report. In addition,
Pacific Aggregates will be required to submit an annual Mitigation Monitoring and Compliance
Report to the City of Lake Elsinore to review implementation and the status of the Reclamation
Plan Approval conditions and reclamation mitigation measures.
If an annual performance criterion is not met for any portion of the reclamation mitigation project
in any year, or if the final success criteria are not met, the Applicant will prepare an analysis of the
cause(s) of failure and, if determined necessary by the City of Lake Elsinore and California
Department of Conservation, Office of Mine Reclamation,propose remedial action for approval.
B. Alternative Locations for Contingency Reclamation Mitigation
Sufficient area for creation of the native habitat reclamation mitigation exists on site, so selection
of an alternative site is not necessary.
Although this plan is expected to be successful, alternative locations could be used in the event that
mitigation cannot be achieved. An alternative location has not been selected at this time.
C. Funding Mechanism and Reclamation Mitigation Assurance
The applicant (Pacific Aggregates, Inc., 14741 Lake Street, Lake Elsinore, CA 92530) assures
reclamation mitigation of the site, in compliance with Section 2773.1 of SMARA in the form of a
bond in the amount of $1,935,200 payable to the City of Lake Elsinore and the California
Department of Conservation, Office of Mine Reclamation. This bond will fund planning,
implementation, and monitoring of any contingency procedures that may be required to achieve
reclamation mitigation goals.
If during Mining Phase 3, the property owner's grading permit has not yet been secured for the
commercial development of the property, the reclamation mitigation bond will be increased to
reflect the amount of reclamation mitigation that is to be implemented, as well as,monitoring and
contingency procedures.
The financial assurance will be approved for the implementation of this proposed Reclamation
Mitigation Plan for the first year and will be reviewed and adjusted annually to account for new
lands disturbed, inflation, and reclamation of lands accomplished in accordance with the
approved Reclamation Plan [SMARA, Section 2773.1 (a) (3)].
Habitat Mitigation and Monitoring Plan 52
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31, 2006 and September 26,2006
D. Statement of Responsible Parties
The applicant will be responsible for implementing and monitoring any contingency
procedures. The applicant may assign these responsibilities to an appropriate contractor,
but will retain ultimate responsibility for implementing and monitoring any contingency
procedures.
The statement of responsibility for the reclamation mitigation of the site (below) will be
signed by Pacific Aggregates' representative and will be included as a separate form.
1, the undersigned, hereby agree to accept full responsibility for reclamation of all
mined lands as described and submitted herein and in conformance with the
applicable requirements of Articles 1 and 9 (commencing with Sections 3500 et.
seq. and 3700 et. seq., respectively) of Chapter 8 of Division 2 of Title 14 of the
California Code of Regulations, the Surface Mining and Reclamation Act
commencing with Section 2710 et. seq., and with any modifications requested by
the administering agency as conditions of approval.
Signed this "° day of 2006 by
Signature (,,r4 Title S, / y
Habitat Mitigation and Monitoring Plan 53
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19,2006,Amended August 31,2006 and September 26,2006
APPENDIX A
Samples of Data Monitoring Sheets
1
1
Habitat Mitigation and Monitoring Plan 54
Pacific Aggregates/Nichols Canyon Mine Reclamation Plan
June 19, 2006,Amended August 31,2006 and September 26,2006
MITIGATION SITE MONITORING SHEET — QUALITATIVE EVALUATION
Project Name: Date:
Recorder's Name: The Planning Associates/
A. PLANT HEALTH—GENERAL: YES NO EXPLAINATION
1. Are there visible signs of nutrient/water deficiencies?
If yes,then describe.
2. Are there signs of regeneration/reseeding?
3. Is vandalism harming plant health or project success?
4. Are there any signs of herbivor ?
5. Other:
B. CONTAINER STOCK.-
1. Provide visual estimation percent of survival of
container stock:
2. Are watering basins intact?
3. Is mulch from original installation still present?Is there
litter development?
C. SEEDED SPECIES:
1. Are all intended native species present?If not,then
what is missing?
2. Are there any occurrences of volunteer nativespecies?
Are there any unvegetated areas? Should these be
remediated?
D. WEEDS:
1. Is excessive competition from weeds affecting desired
species?
2. Is there adequate maintenance/weed clearing?
3. Other:
E. SOILS:
1. Are there any signs of soil development?
2. Other:
F. IRRIGATION SYSTEM:
1. Are irrigation heads functioning ro erl ?
2. Are there any signs of rodent damage to irrigation
system?
3. Are there any signs of vandalism to the irrigation
system/controller box?
4. Are there any signs of excessive runoff?
5. Does irrigation frequency and volume require
adjustment?
6. Other:
GENERAL NOTES:
TRANSECT/PERCENT COVER ESTIMATION
Project Name: Date:
Recorder's Name: The Planning Associates/
1. SHEET NUMBER: Of
2. TRANSECT NUMBER:
3. TRANSECT LENGTH:
4. READINGS/TRANSECT:
5. DISTANCE BETWEEN
READINGS:
6. PHOTOSTATION
NUMBERS:
7. Comments:
8. Bare/Vacant:
9. "HERB" LAYER "SHRUB" LAYER "TREE" LAYER
0'—3' >g„
Species Total
ADDITIONAL NOTATIONS
APPENDIX `B'
Plant Species Identified Onsite
During 2005 Field Surveys Performed By
The Planning Associates Biologists
Floral and Faunal Compendium
* denotes non-native species
ANGIOSPERMAE: DICOTYLEDONES DICOT FLOWERING PLANTS
Anacardiaceae Sumac family
Malosma laurina Laurel sumac
Rhus trilobata Squaw bush
Apiaceae Carrot family
*Foeniculum vulgare Sweet fennel
Lomatium utriculatum Cow-parsnip
Asteraceae Sunflower family
Ambrosia artemisifolia Common ragweed
Ambrosia dumosa Burrobush
Ambrosia psilostachya Western ragweed
Baccharis salicifolia Mulefat
Gutierrezia californica California matchweed
Helianthus annuus Annual sunflower
Hemizonia fasciculata Fascicled tarweed
Heterotheca grandiflora Telegraph weed
Layia platglossa Tidy tips
Boraginaceae Borage family
Amsinckia menziesii Fiddleneck
Cryptantha intermedia Popcorn flower
Brassicaceae Mustard family
*Hirschfeldia incana Short-podded mustard
*Lepidium perfoliatum Weedy peppergrass
*Sisymbrium irio London rocket
Cucurbitaceae Gourd family
Cucurbita palmata Coyote melon
Euphorbiaceae Spurge family
Croton californica Croton
Eremocarpus setigerus Doveweed
Euphorbia nutans Spurge
Fabaceae Pea family
Astragalus pomonensis Locoweed
Lotus scoparius Deer weed
Lotus strigosus String-stemmed lotus
Lupinus bicolor Miniature lupine
Geraniaceae Geranium family
*Erodium cicutarium Red-stemmed filaree
Hydrophyllaceae Waterleaf family
Phacelia minor Canterbury bells
Lamiaceae Mint family
Salvia mellifera Black sage
Papaveraceae Poppy family
Eschscholzia sp. Poppy
Polygonaceae Buckwheat family
Eriogonum fasciculatum California buckwheat
Eriogonum gracile Graceful buckwheat
Scrophulariaceae Snapdragon family
Mimulus cardinalis Red monkeyflower
ANGIOSPERMAE: MONOCOTYLEDONAE MONOCOT FLOWERING
PLANTS
Liliaceae Lily family
Allium sp. Onion
Poaceae Grass family
*Avena barbata Slender wild oats
Bromus ciliatus Fringed brome
*Bromus diandrus Ripgut brome
*Bromus madritensis Red brome
*Bromus mollis Soft chess
*Cynodon dactylon Bermuda grass
Distichlis spicata Saltgrass
*Mordeum murinum Wild barley
*Schismus barbatus Mediterranean grass
Taxonomy and nomenclature follow Hickman 1993 and Munz 1974.
FAUNA
REPTILIA REPTILES
Iguanidae Iguanas and their allies
Sceloporus occidentalis Western fence lizard
Uta stansburiana Side-blotched lizard
Phrynosoma coronatum blainvillei San Diego horned lizard
' Teiidae Whiptails and their allies
Cnemidophorus tigris multiscutatus Coastal whiptail
Colubridae Colubrids
Masticophis flagellum Coachwhip
AYES BIRDS
Cathartidae Vultures
Cathartes aura Turkey vulture
Accipitridae Kites, hawks and eagles
Elanus leucurus White-tailed kite
Buteo jamaicensis Red-tailed hawk
Falconidae Caracaras and falcons
Falco sparverius American kestrel
Phasianidae Quails and pheasants
Callipepla californica California quail
Columbidae Pigeons and doves
Zenaida macroura Mourning dove
Camprimulgidae Goatsuckers
Chordeiles acutipennis Lesser nighthawk
Cuculidae Typical cuckoos
Geococcyx californianus Greater roadrunner
Trochlidae Hummingbirds
Calypte anna Annaks hummingbird
Tyrannidae Tyrant flycatchers
Tyrannus verticaulis Western kingbird
Alaudidae Larks
Eremophila alpestris Horned lark
i
Corvidae Crows and ravens
Aphelocoma californica Western scrub jay
Corvus corax Common raven
Mimidae Mimic thrushes
Mimus polyglottos Northern mockingbird
Lanidae Shrikes
Lanius ludovicianus Loggerhead shrike
Emberizidae Warblers, sparrows,blackbirds and relatives
Ammodramus savannarum Grasshopper sparrow
Zonotrichia leucophyrs White-crowned sparrow
Fringillidae Finches
Carduelis psaltria Lesser goldfinch
MAMMALIA MAMMALS
Leporidae Rabbits and hares
Sylvilagus audubonii Audubon/Es cottontail
Lepus californicus Black-tailed jackrabbit
Sciuridae Squirrels, chipmunks and marmots
Spermophilus beecheyi California ground squirrel
Geomyidae Pocket gophers
Thomomys bottae BottaEs pocket gopher
Heteromyidae Pocket mice and kangaroo rats
Dipodomys simulans Dulzura kangaroo rat
Dipodomys stephensi Stephens kangaroo rat
Cricetidae Cricetine mice and rats
Peromyscus maniculatus Deer mouse
Peromyscus boylii Brush mouse
Neotoma sp. Woodrat
Canidae Foxes,wolves and relatives
Canis latrans Coyote
Mustelidae Weasels and relatives
Mustela frenata Long-tailed weasel
Mephitis mephitis Striped skunk
Nomenclature follows Garth&Tilden 1986, Hall 1981, Laudenslayer et al. 1991, and Stebbins
1966.
Appendix `C' - Sensitive Biological Resources
Table 1.
Sensitive Biological Resources—Nichols Mining
Resource Habitat And Activity Status Occurrence
Distribution Period Desi nation Probability
Plants
Chaparral sand- Annual. Coastal sage March-August FED:ND None. Sandy places
verbena scrub,chaparral.From the STATE:ND on the property are
Abronia villosa var. head of the Coachella CNPS: 1B limited. Species not
aurita Valley to interior observed.
Riverside, Orange and
San Diego counties.
Sandy places below 5000
feet.
San Diego thorn- Annual. Chaparral, April-May FED: THR None.No suitable
mint coastal sage scrub,valley STATE: END clay soils present on
Acanthomintha and foothill grasslands, CNPS: 2 site.
ilicifolia vernal pools.Found on
active vertisol clay soils
of mesas and valleys,
usually on clay lenses
within the grassland and
scrub communities.
Southwest San Diego
County and adjacent Baja
California.
Munz's onion On clay soils in openings Mar -May FED: END Low.Not observed in
AUium munzii within coastal sage scrub, Flowering STATE: THR prior spring surveys.
pinyon juniper woodland, period CNPS: 1B Limited suitable
and grasslands; 900 to undisturbed clay soils
3000 ft. elevation. present on site.
Known only from w.
Riverside Co. in Temescal
Canyon. and Gavilan
Plateau areas.
San Diego ambrosia Chaparral,coastal sage June- Sep FED: C2* None.Was not observed during
Ambrosia pumila scrub,valley and foothill STATE: ND survey.
grassland, and vernal CNPS: 1B
pools. Sandy loam or clay
soils.In valleys,persists
where disturbance is
superficial. 100 to 600 ft
elevation.Riverside and
San Diego County.
Jaege's milk-vetch Perennial from woody March to July FED:ND None.No suitable
i
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probability
Astragalus pachypus caudex. On open sandy Flowering STATE:ND habitat.
var.jaegeri slopes, dry ridges and period CNPS: 1B
valleys. Often in valley
and foothill grassland and
oak chaparral.Also in
coastal sage scrub,
chaparral,cismontane
woodland.Below 2500
feet.Banning to Aguanga
and Temecula.
Davidson's Annual. Alkaline valleys May to FED:ND None.Not observed.
saltscale in low elevations.Valley October STATE:ND
Atriplex serenan grasslands,coastal sage CLAPS: 1B
var.davidsonii scrub,etc. The variety
davidsonii is limited to
Los Angeles to Balboa
and Laguna Beach areas.
Paris's brittlescale Alkali flats largely in June-Oct FED: C2* None.No suitable
Atriplex parishii valley or annual STATE:ND habitat on site.Not
grassland. From CLAPS: 1B observed.
cismontane California to
the edge of the desert,
extending into the Central
Valley
Thread-leaved Clay soils; open April -June FED: THR None.No suitable
brodiaea grasslands at edges of STATE: END clay soils or vernal
Brodiaea fd folia vernal pools or CNPS: 1B pools on site.
floodplains. Sea level to
2500 ft. elevation. Los
Angeles,Orange,
Riverside, and San Diego
Counties. Known from
ca.20 locations.
Intermediate Dry,rocky,open slopes, June-July FED: C2* Low. Suitable dry
mariposa lily often in chaparral,coastal STATE:ND rocky slopes are
Calochortus weedii sage scrub,valley& CNPS: 1B present within
var. intermedius foothill grassland below footprint area.Not
2000 ft. elevation. Los observed during
Angeles, Orange, and survey.
Riverside Counties.
Southern tarplant Often in disturbed sites June - FED:ND None.Not observed.
Centromadia parryi near the coast.Also found September STATE:ND
spp. australis on alkaline soils at the CNPS: 1B
edges of marshes and
swamps.Found in valley
and foothill grasslands,
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probabilit
and sometimes along
vernal pool margins.
Southern California and
Baja California.
Smooth tarplant Often in disturbed sites April- FED: C2* None.Not observed
Centromadia near the coast.Also found September STATE:ND
pungens ssp. laevis on alkaline soils at the CNPS: 1B
edges of marshes,
swamps,playas and
chenopod scrub.Found in
riparian areas,valley and
foothill grasslands,and
sometimes along vernal
pool margins. Southern
California and Baja
California.
OrcutUEs Annual. Coastal sage March-April FED: END None.No suitable
spineflower scrub,chaparral,closed- STATE: END scrub or wooded
Chorizanthe cone coniferous forest. CNPS: 1B habitat on site.
orcuttiana Sandy sites and openings
within plant communities.
San Diego County.
Parry's spineflower Sandy openings in coastal April-June FED: C2* Low.Marginally
Chorizanthe parryi sage scrub and chaparral, flowering STATE:ND suitable habitat.Not
var.parryi 900 to 3500 ft.Elevation, period CNPS: 3 observed.
east Los Angeles Co.to
San Gorgonio Pass and
west Riverside Co.
Long-spined Dry places below 5000 Not FED:ND Low.Marginally
spineflower feet; chaparral,coastal documented STATE:ND suitable habitat.Not
Chorizanthe sage scrub,meadows, CNPS: 1B observed.
polygonoides var. valley and foothill
longispina grassland. West
Riverside and San Diego
counties.
Slender-horned Sandy and gravelly soils Apr-Jun FED: END Low.Marginally
spineflower on alluvial fans and old STATE: END suitable habitat.Not
Dodecahema floodplains; 500 to 2000 CNPS: 1B observed.
leptoceras ft. elevation. Los
Angeles,Riverside, and
San Bernardino Counties.
Many-stemmed Annual. In heavy,often May-June FED: C2* None.Not observed.
dudleya clayey soils or grassy STATE:ND
Dudleya multicaulis slopes in chaparral, CNPS: 1B
coastal sage scrub,valley
and foothill grassland.
Resource Habitat And Activity Status Occurrence
Distribution Period Desi nation Probability
Riverside, San
Bernardino, Orange
counties.Below 2000
feet.
Round-leaved Annual. Open places Mar-May FED: ND None.Not observed
filaree below 3500 feet. On clay flowering STATE: ND on site.
Erodium soils in Los Angeles period CNPS: 2
macrophyllum County and north. Santa
Cruz Island.Also near
San Diego. Found near
Lake Skinner in Riverside
County.
San Diego button Vernal pools. Riverside April-June FED: END None.No vernal pools
celery and San Diego Counties, STATE: END present .
Eryngium and Baja Calif.; sea level CNPS: 113
aristulatum var. to 3000 ft. elevation.
parishii
Palmer's Chaparral,coastal scrub, March-April FED: C2* None. Site to
grapplinghook valley&foothill STATE:ND disturbed for species
Harpagonella grassland in clay soils on CNPS: 2 to occur.
palmeri dry slopes &mesas below
1500 ft.elevation.
Cismontane s. Calif. from
Los Angeles Co.to NW
Baja Calif.,including
Santa Catalina Island.
One population at Dana
Point Headlands.
Coulter's goldfields Coastal salt marshes, Feb-Jun FED: C2* Low.Marginally
Lasthenia glabrata alkali playas,valley& STATE:ND suitable habitat on
ssp. coulteri foothill grasslands,and CLAPS: 1B site.Not observed.
vernal pools below 3000
ft. elevation. Inland so.
Calif.and along coast
from San Luis Obispo Co.
to Baja Calif.
Robinson's pepper- Annual. Chaparral and Jan-April FED: ND None.No suitable
grass coastal sage scrub STATE: ND habitat.
Lepidium habitats,primarily on dry CNPS: 1B
vriginicum ssp. soils.From Los Angeles
robinsonii County south to Baja
California.
San Diego Perennial,annual growth May FED:ND None.No vernal pool
goldenstar from corm.Mesa STATE: ND habitats present. Clay
Muilla clevelandii grasslands scrub edges on CNPS: 1B soils to disturbed for
clay soils.Also found on species to occur.
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probabili
raised mounds between
vernal pools. Chaparral,
coastal sage scrub,valley
and foothill grasslands.
San Diego and Baja
California.Possibly also
Riverside County.
Little mousetail Vernal pools and alkaline April-May FED: C2* None.No vernal pools
Mysosurus minimus marshes below 1500 feet. STATE:ND or alkaline marshes
San Diego to west CNPS: 3 present.
Riverside County.
Spreading Vernal pools, ditches, 30 Not FED: THR None.No vernal pools
navarretia to 1300 meters. documented STATE:ND or other suitable
Navarretia fossalis CNPS: 1B habitat areas are
present.
Prostrate navarretia Vernal pools,Alkali flats, Not FED: THR None.No vernal pools
Navarretia Santa rosa Plateua documented STATE:ND or suitable habitat on
prostrada CNPS: 1B site
California orcutt Vernal pools, drying mud April-August FED: END None.No vernal pools
grass flats,vernally mesic STATE: END or suitable habitat on
Orcuttia californica grasslands. Ventura Co. CNPS: 1B site Not observed.
to n.Baja Calif,
including west Riverside
Co.
San Miguel savory Rocky canyons below March-May FED:ND Low.Limited rocky
Satureja chandleri 2500 feet elevation; STATE:ND canyons present on
chaparral. Santa Ana CNPS: 4 site.Not observed
Mountains near Murrieta during spring surveys.
and San Miguel and San
Jamul Mtns. in San Diego
County.
Hammitts clay-crest Chaparral openings, March to April FED: THR None. Clay soils on
Sibaropsis valley and foothill STATE:ND site to disturbed for
hammittii grasslands CNPS: 1B species to occur.
Salt spring Alkaline,usually wet April to June FED:ND None.No alkaline or
checkerbloom places. Coastal sage STATE:ND suitable wet places
Sidalcea scrub,chaparral,creosote CNPS: 2 present on site.
neomexicana bush scrub. Los Angeles,
Orange, San Bernardino,
Riverside Counties.
Wrigh's Annual plant found on May- FED:ND None.No suitable
trichocoronis mudflats and shores.At September STATE:ND habitat on site.
Trichocoronis Mystic Lake in Riverside CNPS: 2
wrightii Count and occasionally in
the Central Valley. Also
found in south Texas and
Resource Habitat And Activitv Status Occurrence
Distribution Period Designation Probabili
northern Mexico.
Amphibians
California tiger Temporary rain pools and Breeds Dec - FED: C Not sure why this
salamander permanent waters of February STATE: CSC species was included
Ambystoma grassland and open by the CNDDB. No
californiense woodland of low hills and populations known
valleys of central CA. from this part of
Agriculture and urban California.No
development have suitable habitat
impacted the species in present on site.
the Central Valley.
Western spadefoot Grasslands and October-April FED:ND Low.Not observed
Scaphiopus occasionally hardwood (following STATE: CSC but suitable habitat on
hammondii woodlands; largely onset of winter site.
terrestrial but for rains)
breeding,requires rain
pools or other ponded
water for 3+weeks;
burrows in loose soils
during dry season; Central
Valley and foothills,coast
ranges,inland valleys,to
Baja Calif.
Arroyo Washes and arroyos with Mar-Jul FED: END None. No suitable
southwestern toad open water; sand or gravel STATE: CSC washes or arroyos
Bufo microscaphus beds;for breeding,pools present on site. Soils
californicus with sparse over-story not sandy .
vegetation. Coastal and a
few desert streams from
Santa Barbara Co.to Baja
Calif.
California red- Streams with slow- Dec-Apr FED: THR None. Not known to
legged frog moving water and deep STATE: CSC occur in vicinity.
Rana aurora pools; dense, shrubby
draytonii riparian vegetation at pool
edges. Coastal streams
from Marin Co.to
Ventura Co.;between
Ventura Co. and Mexican
border,known from only
four small populations
including Santa Rosa
Plateau(Riverside Co.).
Reptiles
San Diego horned Wide variety of habitats April-July FED:ND Present. Observed on
lizard including coastal sage (with reduced STATE: CSC site.
Resource Habitat and Aetivity Status Occurrence
Distribution Period Designation Probability
Phrynosoma scrub,grassland,riparian activity Aug. -
coronatum woodland;typically on or Oct.)
blainvillei near loose sandy soils;
coastal and inland areas
from Ventura Co. to Baja
Calif.
Coronado skink Early successional stages Active year FED:ND Low. Could occur on
Eumeces or open areas in round STATE: CSC or near site.
skiltonianus grassland, chaparral,
interparietalis pinyon juniper and
juniper sage woodland,
pine oak and pine forests
in the coastal ranges of
southern California. Also
found in rocky areas close
to streams, and on dry
hillsides.
Orange-throated Floodplains and terraces March-July FED:ND Low.Not observed
whiptail with perennial plants and (with reduced STATE: CSC but likely to occur on
Cnemidophorus open areas nearby; sea activity Aug. - site
hyperythrus level to 3000 feet Feb.)
elevation; inland and
coastal valleys of
Riverside, Orange,and
San Diego Counties. to
Baja Calif.
Coastal western Firm,sandy or rocky soils Year round FED:ND Present. Observed in
whiptail in deserts and semiarid STATE:ND scrub on site.
Cnemidophorus areas with sparse
tigris multiscutatus vegetation and open areas.
Also found in woodland
and riparian areas.
Rosy boa Mix brushy cover and Year round FED: ND Low.Not observed
Lichanura trivirgata rocky soils.Desert and STATE:ND but suitable habitat
chaparral,found from the occurs on site.
coast to the Mojave and
Colorado deserts.Prefers
moderate to dense
vegetation.
Northern red- Occurs in rocky areas and Year round FED:ND Low.Not observed
diamond rattlesnake dense vegetation.Needs STATE: CSC but suitable habitat
Crotalus exsul rodent burrows, cracks in occurs on site.
rocks,or other surface
material. Chaparral,
woodland, grassland and
desert areas. Coastal San
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probabili
Diego County to the
eastern slopes of the
mountains.
Birds
White-tailed kite Open country in South Year-round FED:ND Low. Observed
Elanus leucurus America and southern STATE:ND foraging near project
North America. (nesting) site.
Bald eagle Winters locally at deep Nov-Feb FED: END Low. Species is
Haliaeetus lakes and reservoirs STATE: END known to winter at
leucocephalus feeding on fish and Lake Perris and
waterfowl. Locally rare possibly Lake
throughout North Skinner; during
America. winter.
Northern harrier Grassland and marshy Year round FED:ND Moderate. Not
Circus cyaneus habitats in Southern STATE: CSC observed during the
California. Uncommonly surveys.Forages
in open desert and over a wide range of
brushlands. open habitat and can
be expected to occur
throughout most of
Southern California.
Sharp-shinned hawk Nests in woodland, Fall &winter; FED:ND Moderate. Not
Accipiter striatus coniferous deciduous scarce in STATE: CSC observed during the
forest. Winter visitor and summers surveys,but are
migrant to coastal expected to forage
Southern California. infrequently over the
Forages over a variety of property during
habitats. migration and in
winter.
Cooper's hawk Woodland and semi-open Year round; FED:ND Moderate. Not
Accipiter cooperi habitats,riparian groves predominant in STATE: CSC observed during the
and mountain canyons. summer surveys,but are
Uncommon permanent expected to forage
resident in coastal, infrequently over the
mountains,and deserts of property during
Southern California. migration and in
Transients fairly common winter.
on coast in fall.
Golden eagle Grasslands,brushlands, Year round FED:ND Present. Species has
Aquila chrysaetos deserts,oak savannas, diurnal STATE: CSC been documented
open coniferous forests (nesting and flying over but not
and montane valleys. wintering) foraging on-site but
Nesting primarily in not observed as part
rugged mountainous of 2004 survey.
country. Uncommon
resident in Southern
Resource Habitat And activity Status Occurrence
Distribution Period Designation Probability
California.
Feruginous hawk Fairly common in winter Winter FED: C2* Low. Foraging
Buteo regalis in open grassland and STATE: CSC habitat is present.
agricultural regions in the
interior,as well as some
valleys along the coast.
Rare and uncommon
along the coast and in the
desert.
Merlin Frequents several habitats Fall &winter FED: ND Low. Not observed
Falco columbarius including coastal sage STATE: CSC during the surveys.
scrub and annual Can be expected to
grassland. Forages along forage over the site
the coast,and in montane during migration and
valleys and open deserts in winter.
with scattered clumps of
trees. Rare fall migrant
and winter visitor to
Southern California.
American peregrine Wetlands near high cliffs; Fall &Winter FED:ND Low. Species passes
falcon few known to nest in (in migration STATE: END through region
1 Falco peregrinus urban settings on tall and as winter during migration and
anatum buildings. Scattered visitor) may winter in region;
locations in North during migration or
America; in California winter,could forage
coastal areas and inland on site
mountains.
Prairie falcon Nest in cliffs or rocky Year round FED:ND Low. Not observed
Falco mexicanus outcrops; forage in open diurnal STATE: CSC during the surveys.
and valleys,agricultural Foraging habitat
fields. Throughout the exists for this species
desert and and interior over the property,but
portions of coastal there is no suitable
counties. Uncommon nesting habitat.
resident in Southern
California.
Burrowing owl Grasslands and Year round FED:ND Not present. No
Athene cunicularia rangelands,usually STATE: CSC burrows were
hypugea occupying ground squirrel observed on site.
burrows. Resident over This species could
most of Southern forage on site.
California. Found in
agricultural areas.
Long-eared owl Rare resident in coastal Nocturnal year FED: ND Low. Foraging
Asio otus Southern California and round STATE: CSC habitat exists on the
uncommon resident in property.
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probabili
desert areas. Dense
willow-riparian woodland
and oak woodland.
Breeds from valley
foothill hardwood up to
ponderosa pine habitat.
Short-eared owl Primarily a rare and local Fall-Winter FED:ND Low. Available
Asio flammenus winter visitant to the STATE: CSC information states
coast,and a rare fall that short-eared owls
transient and winter are rare fall
visitant in the desert, transients in the
including the Salton Sea therefore,may forage
and the Colorado River. on the property.
Also recorded at Mystic
Lake in the San Jacinto
Valley,Riverside County,
in summer 1992, and
Harper Dry Lake, San
Bernardino County,
summer 1993.
Vaux)Es swift Fairly common spring and Fall-Spring FED:ND Low. May fly over the
Chaetura vauxi fall transient in southern STATE: CSC site during migration.
California. Rare and No suitable nesting
irregular winter visitor habitats on site.
primarily along coast.
Nesting sites need
protection.
Bank swallow Nesting habitat is vertical Variable year FED:ND Low. No suitable
Riparia riparia banks of fine textured round STATE: THR nesting habitat
soils,most commonly occurs within the
along streams and rivers. property limits.
In Southern California, Foraging habitat on
fairly common spring and site.May be transient
fall transient in interior; in migration.
very uncommon spring
transient and rare fall
transient along coast.
Casual in winter.
Coastal cactus wren Tall Opuntia required for Year round FED:ND None.No Opuntia
Campylorhynchus nesting and roosting. STATE: CSC present on site.
brunneicapillus Coastal sage scrub.
couesi Southern California.
California Coastal sage scrub; occurs Year-round FED: THR Observed in previous
gnatcatcher only in cismontane STATE:ND surveys. Most of
Polioptila Southern California and habitat burned in 2004
californica northwestern Baja fire.Not observed in
Resource Habitat And Activity Status Occurrence
Distribution Period Designationn Probability
California in low-lying 2004 surveys.
foothills and valleys.
Loggerhead shrike Open fields with scattered Year round FED:ND Present Observed in
Lanius ludovicianus trees, open woodland, STATE: CSC past and current
scrub. Fairly common survey.
resident throughout
Southern California.
Southern California Fairly common resident Year round FED:ND High.Not observed
rufous-crowned along the coast of STATE: CSC but suitable habitat
sparrow California;breeds very occurs on site.
Aimophila ruftceps locally on desert
canescens mountain ranges.
Preferred habitat is slopes
with sparse shrubs and
open grassy areas
intermixed. Coastal sage
scrub is the most common
plant community used.
Mammals
California leaf- In California,these bats Year round FED:ND Low. Because there
nosed bat primarily occupy low- nocturnal STATE: CSC are no roost sites in
Macrotus lying desert areas,where the property limits
californicus they roost in caves,mines, this species does not
and old buildings. roost on the property.
Historic records extend However, it may
west to near Chatsworth, forage over the
Los Angeles County,but property if there are
most populations from the roosting sites such as
California coastal basins caves in the nearby
are believed to have mountains.
disappeared. Occurs from
northern Nevada,
Southern California,and
western Arizona south to
southern Baja California
and Sonora.
Townsend's western Requires caves,mines, Year round FED:ND Low. Because there
big-eared bat tunnels,buildings or other Nocturnal STATE: CSC are no suitable roost
Plecotus similar structures for sites in the property
townsendii,two ssp. roosting. May use limits,this species
separate sites for night, does not roost on the
day,hibernation or property.However,it
maternity roosts. Found may forage over the
in all but subalpine and property if there are
alpine habitats throughout roosting sites such as
California. caves in the nearby
Resource Habitat And Activity Status Occurrence
Distribution Period Designation I
mountains.
Pallid bat Day roosts in caves, Spring, FED:ND Low. Limited
Antrozous pallidus crevices,mines,and Summer,Fall STATE: CSC suitable roost sites in
occasionally hollow trees Nocturnal the property limits.
and buildings. Night Hibernates in This species may
roosts may be more open Winters forage over the
sites, such as porches and property if there are
open buildings. roosting sites such as
Hibernation sites are caves in the nearby
probably rock crevices. mountains.
Grasslands, shrublands,
woodlands and forest
from sea level through to
mixed conifer.
Throughout Southern
California.
Spotted bat Found in the western Spring, FED:ND Low. Because there
Euderma North America from Summer,Fall STATE: CSC are no suitable roost
maculatum southern British Columbia Nocturnal sites in the property
to the Mexican border, at Hibernates in limits,this species
a small number of widely Winters does not roost on the
scattered localities. property.However, it
Habitats range from and may forage over the
deserts and grasslands property if there are
through mixed conifer roosting sites such as
forest up to 10,600 feet in caves in the nearby
elevation.Prefers rock mountains.
crevices in cliffs,also
uses caves and buildings.
California mastiff Historically from north- FED:ND Low. Because there
bat central California south to STATE: CSC are no suitable roost
Eumops perotis northern Baja California, sites in the property
californicus eastward across the limits,this species
southwestern United does not roost on the
States,and northwestern property.However, it
Mexico to west Texas and may forage over the
Coahuila(Hall, 1981; property if there are
Williams, 1986).In roosting sites such as
California,most records caves in the nearby
are from rocky areas at mountains.
low elevations where
roosting occurs primarily
in crevices.
Pocketed free-tailed Spotty distribution in Warmer FED: ND Low. Because there
bat California,ranging from months. STATE: CSC are no suitable roost
Nyctinomops Southern California south Nocturnal sites in the property
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probability
femorasacca to the Baja Peninsula, and limits,this species
through southwestern does not roost on the
Arizona to at least central property.However,it
Mexico(Williams, 1986). may forage over the
In California,pocketed property if there are
free-tailed bats are roosting sites such as
typically found in rocky, caves in the nearby
desert areas with mountains.
relatively high cliffs.
Big free-tailed bat Found from northern Nocturnal FED: ND Low. Because there
Nyctinomops South America and the spring-fall STATE: CSC are no suitable roost
macrotis Caribbean Islands Hibernates in sites in the property
northward to the western Winters limits,this species
United States (Williams, does not roost on the
1986).In the property.However,it
southwestern U.S., may forage over the
populations appear to be property if there are
scattered. Known roosting sites such as
breeding localities are in caves in the nearby
parts of Arizona,New mountains.
Mexico,and Texas.
i Prefers rocky,rugged
terrain.Roosts in crevices
in high cliffs or rocky
outcrops.Ranges up to
8000 feet in elevation.
San Diego black- Variety of habitats Year round, FED:ND Present. Observed on
tailed jackrabbit including herbaceous and diurnal and STATE: CSC site.
Lepus californicus desert scrub areas, early crepuscular
bennettii stages of open forest and activity
chaparral.Most common
in relatively open habitats.
Restricted to the
cismontane areas of
Southern California,
extending from the coast
to the Santa Monica, San
Gabriel, San Bernardino
and Santa Rosa mountain
ranges.
Los Angeles pocket Prefers sandy soil for Nocturnal; FED: ND Low.Marginally
mouse burrowing,but has been active late STATE: CSC suitable habitat on
Perognathus found on gravel washes spring to early site.
longimembris and stony soils. Found in fall.
brevinasus coastal scrub and alluvial
fan scrub. Los Angeles,
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probability
Riverside,and San
Bernardino Counties.
Northwestern San Sandy herbaceous areas, Nocturnal; FED:ND High.Most likely
Diego pocket mouse usually with rocks or active year STATE: CSC present.
Chaetodipus fallax coarse gravel. Arid round.
fallax coastal areas in grassland,
coastal scrub and
chaparral. San Diego,
San Bernardino,Los
Angeles,and Riverside
Counties.
Stephen's kangaroo Open areas with sparse Nocturnal; FED: END Present.Documented
rat perennial cover with areas active year STATE: THR on site.
Dipodomys of loose soil where the round
stephensi soil depth is at least 0.5
meters.Also inhabit
disturbed areas such as
fallow fields by using the
burrows of other rodents,
including pocket gophers
and Beechey ground
squirrel.
San Diego desert Moderate to dense Nocturnal; FED:ND High. Good habitat
woodrat canopies,particularly in active year STATE: CSC and woodrat sign on
Neotoma lepida rocky areas. Coastal sage round property.
intermedia scrub and chaparral.
Coastal southern
California.
Invertebrates
Vernal pool fairy Grasslands and ponded Spring FED: THR Potential.No vernal
shrimp areas such as vernal STATE:ND pools but water
Branchinecta lynchi pools,cattle watering ponding present on
holes,basins, etc. In site.
Southern California,
species found primarily in
the interior of western
Riverside Co.,central
Santa Barbara Co., and
eastern Orange Co. Also,
more recently discovered
in Los Angeles Co.
Riverside fairy Known only from Spring FED: END
shrimp ephemeral pools in STATE:ND Potential.No vernal
Streptocephalus southern Orange and pools but water
woottoni western Riverside and ponding present on
Resource Habitat And Activity Status Occurrence
Distribution Period Designation Probabilitv
San Diego Counties. site. No fairy shrimp
noted on-site or
nearby. No suitable
habitat occurs on-site
for RSF.
Quino checkerspot Open grassy sites on Spring FED: END Low.Host species not
butterfly grasslands and in open STATE:ND documented on site.
Euphydryas editha areas in coastal sage
quino scrub. Areas must
contain food plants
(plantain and owl's
clover)with low levels of
non-native vegetation,
open or bare soils with
sparse shrub cover.
Historic range was
western Riverside County
and n. San Diego co;
range recently extended to
include inland and coastal
San Bernardino,L.A.,
Orange,Ventura and San
Diego counties.
Sensitive Habitats
Southern mixed Steep canyons and Year round Declining Not present on site.
riparian forest drainages in the foothills plant
of local mountain ranges. community
Southern coast live Steep canyons and Year round Declining Not present on site.
oak riparian forest drainages in the foothills plant
of local mountain ranges. community
Southern Steep,narrow and Year round Declining Not present on site.
cottonwood willow shallow,broad canyons plant
riparian forest and drainages in the community
foothills of local
mountain ranges.
Desert fan palm Found where springs Year round Declining Not present on site.
oasis woodland occur or water table is plant
very shallow. community
LEGEND
FED: Federal Classifications
END Taxa listed as endangered
THR Taxa listed as threatened
PE Taxa proposed to be listed as endangered
PT Taxa proposed to be listed as threatened
C2* The USFWS will continue to assess the need for protection of these taxa and may, in the
future, designate such taxa as candidates. NRA, Inc. has noted the change in species
status by marking with an asterisk(*) those C2 candidates that were removed from the
list.
C Candidate for listing. Refers to taxa for which the USFWS has sufficient information to
support a proposal to list as Endangered or Threatened and issuance of the proposal is
anticipated but precluded at this time.
ND Not designated as a sensitive species
STATE: State Classifications
END Taxa listed as endangered
THR Taxa listed as threatened
CE Candidate for endangered listing
CT Candidate for threatened listing
CFP California Fully Protected. Fully Protected species may not be taken or possessed at any time
and no licenses or permits may be issued for their take except for collecting these species
for necessary scientific research and relocation of the bird species for the protection of
livestock.
CSC California Species of Special Concern. Taxa with populations declining seriously or that are
otherwise highly vulnerable to human development.
SA Special Animal. Taxa of concern to the California Natural Diversity Data Base regardless of
their current legal or protected status.
ND Not designated as a sensitive species
CNPS:California Native Plant Society Classifications
IA Plants presumed by CNPS to be extinct in California
1 B Plants considered by CNPS to be rare or endangered in California and elsewhere
2 Plants considered by CNPS to be rare, threatened or endangered in California, but
which are more common elsewhere
3 Review list of plants suggested by CNPS for consideration as endangered but about
which more information is needed.
4 Watch list of plants of limited distribution whose status should be monitored.
Occurrence Probabilities
Occurs Observed on the site during this study or recorded on site by other qualified biologists.
1 Expected Not observed or recorded on site,but likely to be present at least during a portion of the
year.
High Known to occur in the vicinity of the project site. Suitable habitat exists on site.
Moderate Known to occur in the vicinity of the project site. Small areas of or marginally suitable
habitat exists on site.
Low No reported sightings within the vicinity of the project. Available habitat limited and
rarely used.
None Focused surveys did not locate the species, or suitable habitat does not exist on site.
Unknown No data is available on whether species is on or in the vicinity of the site,and information about the
species is insufficient to make an accurate assessment of probability occurrence.
APPENDIX `D' - Photo Plates
o •" y
Sc IF' •G �
77
i
Z 3
VI '\' I VS '. ''�• r
ski—
APPENDIX H
List of Species
64
Floral and Faunal Compendium
* denotes non-native species
ANGIOSPERMAE: DICOTYLEDONES DICOT FLOWERING PLANTS
Anacardiaceae Sumac family
Malosma laurina Laurel sumac
Rhus trilobata Squaw bush
Apiaceae Carrot family
*Foeniculum vulgare Sweet fennel
Lomatium utriculatum Cow-parsnip
Asteraceae Sunflower family
Ambrosia artemisifolia Common ragweed
Ambrosia dumosa Burrobush
Ambrosia psilostachya Western ragweed
Baccharis salicifolia Mulefat
Gutierrezia californica California matchweed
Helianthus annuus Annual sunflower
Hemizonia fasciculata Fascicled tarweed
Heterotheca grandiflora Telegraph weed
Layia platglossa Tidy tips
Boraginaceae Borage family
Amsinckia menziesii Fiddleneck
Cryptantha intermedia Popcorn flower
Brassicaceae Mustard family
*Hirschfeldia incana Short-podded mustard
*Lepidium perfoliatum Weedy peppergrass
*Sisymbrium irio London rocket
Cucurbitaceae Gourd family
Cucurbita palmata Coyote melon
Euphorbiaceae Spurge family
Croton californica Croton
Eremocarpus setigerus Doveweed
Euphorbia nutans Spurge
65
Fabaceae Pea family
Astragalus pomonensis Locoweed
Lotus scoparius Deer weed
Lotus strigosus String-stemmed lotus
Lupinus bicolor Miniature lupine
Geraniaceae Geranium family
*Erodium cicutarium Red-stemmed filaree
Hydrophyllaceae Waterleaf family
Phacelia minor Canterbury bells
Lamiaceae Mint family
Salvia mellifera Black sage
Papaveraceae Poppy family
Eschscholzia sp. Poppy
Polygonaceae Buckwheat family
Eriogonum fasciculatum California buckwheat
Eriogonum gracile Graceful buckwheat
Scrophulariaceae Snapdragon family
Mimulus cardinalis Red monkeyflower
ANGIOSPERMAE: MONOCOTYLEDONAE MONOCOT FLOWERING PLANTS
Liliaceae Lily family
Allium sp. Onion
Poaceae Grass family
*Avena barbata Slender wild oats
Bromus ciliatus Fringed brome
*Bromus diandrus Ripgut brome
*Bromus madritensis Red brome
*Bromus mollis Soft chess
*Cynodon dactylon Bermuda grass
Distichlis spicata Saltgrass
*Hordeum murinum Wild barley
*Schismus barbatus Mediterranean grass
Taxonomy and nomenclature follow Hickman 1993 and Munz 1974.
FAUNA
66
REPTILIA REPTILES
Iguanidae Iguanas and their allies
Sceloporus occidentalis Western fence lizard
Uta stansburiana Side-blotched lizard
Phrynosoma coronatum blainvillei San Diego horned lizard
Teiidae Whiptails and their allies
Cnemidophorus tigris multiscutatus Coastal whiptail
Colubridae Colubrids
Masticophis flagellum Coachwhip
AVES BIRDS
Cathartidae Vultures
Cathartes aura Turkey vulture
Accipitridae Kites, hawks and eagles
I Elanus leucurus White-tailed kite
Buteo jamaicensis Red-tailed hawk
Falconidae Caracaras and falcons
Falco sparverius American kestrel
Phasianidae Quails and pheasants
Callipepla californica California quail
Columbidae Pigeons and doves
Zenaida macroura Mourning dove
Camprimulgidae Goatsuckers
Chordeiles acutipennis Lesser nighthawk
Cuculidae Typical cuckoos
Geococcyx californianus Greater roadrunner
Trochlidae Hummingbirds
Calypte anna AnnaJEs hummingbird
67
Tyrannidae Tyrant flycatchers
Tyrannus verticaulis Western kingbird
Alaudidae Larks
Eremophila alpestris Horned lark
Corvidae Crows and ravens
Aphelocoma californica Western scrub jay
Corvus corax Common raven
Mimidae Mimic thrushes
Mimus polyglottos Northern mockingbird
Lanidae Shrikes
Lanius ludovicianus Loggerhead shrike
Emberizidae Warblers, sparrows, blackbirds and relatives
Ammodramus savannarum Grasshopper sparrow
Zonotrichia leucophyrs White-crowned sparrow
Fringillidae Finches
Carduelis psaltria Lesser goldfinch
MAMMALIA MAMMALS
Leporidae Rabbits and hares
Sylvilagus audubonii Audubon�Es cottontail
Lepus californicus Black-tailed jackrabbit
Sciuridae Squirrels, chipmunks and marmots
Spermophilus beecheyi California ground squirrel
Geomyidae Pocket gophers
Thomomys bottae Botta)Es pocket gopher
Heteromyidae Pocket mice and kangaroo rats
Dipodomys simulans Dulzura kangaroo rat
Dipodomys stephensi Stephens kangaroo rat
Cricetidae Cricetine mice and rats
Peromyscus maniculatus Deer mouse
Peromyscus boylii Brush mouse
Neotoma sp. Woodrat
i
68
Canidae Foxes,wolves and relatives
Canis latrans Coyote
Mustelidae Weasels and relatives
Mustela frenata Long-tailed weasel
Mephitis mephitis Striped skunk
Nomenclature follows Garth& Tilden 1986, Hall 1981, Laudenslayer et al. 1991, and Stebbins
1966.
69
APPENDIX I
"Compression Strength Results"-Memo prepared by Geotechnics Incorporated, Dated May 23,
2005
70
G e o t e c h n i c s
Incorporated
San Diego
El Centro
Riverside
May 23, 2005
Pacific Aggregates,Inc. Project No. 1089-002-00
14741 Lake Street Document No. 06-0415
Lake Elsinore, California 92530-1609
Attention: Mr. Chad Warren
SUBJECT: COMPRESSION STRENGTH RESULTS
Nichols Road Core
Lake Elsinore, CA
Gentlemen:
This report presents supplemental laboratory testing of core samples from the subject site. The
site is located north of Nichols Road and east of Interstate 15 in the City of Lake Elsinore,
California. The core samples were collected by others, and delivered to our laboratory in boxes.
It is our understanding that the core samples were collected from a single boring that was
approximately 207 feet deep.
Unconfined compressive strength testing was conducted on 5 random core samples spaced at
roughly 5 core box intervals (Boxes 3, 8, 13, 17 and 24). The 2% inch diameter rock core
samples were cut using a table saw in order to create right cylindrical shapes for compressive
strength testing in a universal tester. The core samples were loaded to between 83 and 177 kips
prior to failure, predominately in a combined cone and split failure mode. The compressive
strength was calculated as the axial load at failure divided by the cross sectional area of the core
samples. The compressive strength test results are summarized in the attached Figure 1.
We appreciate this opportunity to provide professional services. If you have any questions or
comments regarding this report or the services provided, please do not hesitate to contact us.
GEOTECHNICS INCORPORATED
�pROFESS/p
Matthew A. Fagan, P.E. 57248 Z C57248 z o
3
Project Engineer * Exp. l v
sT ClVI�
Distribution: (4) Addressee 9TFOFCAUF�Pe
9245 Activity Road,Ste.103 • San Diego,California • 92126
Phone(858)536-1000 • Fax(858)536-8311
UNCONFINED COMPRESSIVE STRENGTH
SAMPLE 1 (Box 3) 2 (Box 8) 3 (Box 13) 4 (Box 17) 5 (Box 24)
STRENGTH 16,930 lb/in 2 29,930 lb/in 2 20,850 lb/in 2 31,960 lb/in 2 36,240lb/in2
e o t e c h n i c s Project No. 1089-002-00
Incorporated
LABORATORY DATA Document No. 06-0415
FIGURE 1
APPENDIX J
"Laboratory Test Results"- Memo prepared by Geotechnics Incorporated, Dated December 14,
2005
71
® Geotechnics
Incorporated
San Diego
El Centro
Riverside
December 14, 2005
Pacific Aggregates, Inc. Project No. 1089-002-00
14741 Lake Street Document No. 05-1282
Lake Elsinore, California 92530-1609
Attention: Mr. Chad Warren
SUBJECT: LABORATORY TEST RESULTS
Nichols Road Core
Lake Elsinore, CA
Gentlemen:
This report presents the results of laboratory testing of core samples fiom the subject site. The
site is located north of Nichols Road and east of Interstate 15, in the City of Lake Elsinore,
California. The core samples were collected by others, and delivered to our laboratory in boxes.
It is our understanding that the core samples were collected from a single boring that was
approximately 207 feet deep. The core boxes were separated into roughly 20 foot intervals, and
then crushed into fragments of approximately'/4 inch in maximum dimension in order to create a
total of 5 samples for laboratory testing.
Laboratory tests were conducted by Southern California Soil and Testing on the crushed rock
samples in general accordance with ASTM standards. Testing included Specific Gravity(ASTM
C127), Sodium Soundness (ASTM C88), Reactivity (ASTM C289), and LA Abrasion (ASTM
C131). The test results are presented in the attached Figure 1. Specific conclusions regarding
the test results are summarized below.
• Specific Gravity: The specific gravity may be used to estimate the apparent density of the
in-situ rock mass. The average specific gravity of the 5 samples was 2.68, which
corresponds to an average apparent density of 167 lb/ft3 according to ASTM C 127.
Section 200-1.4 of the 2003 Standard Specifications for Public Works Construction
indicates that coarse aggregate used for portland cement concrete should have a minimum
bulk saturated surface dry(S.S.D.) specific gravity of 2.58 (all five tests exceeded 2.62).
9245 Activity Road,Ste. 103 • San Diego,California • 92126
Phone(858)536-1000 • Fax(858)536-8311
PACIFIC AGGREGATES,INC. PROJECT NO. 1089-002-00
DECEMBER 14,2005 DOCUMENT NO.05-1282
PAGE
• Sodium Soundness: The Sodium Soundness test provides a method for estimating the
performance of aggregate with respect to chemical weathering when used in concrete.
According to ASTM C33, for coarse aggregate subjected to 5 cycles of weathering using
sodium sulfate, a maximum of 12 percent weight loss is acceptable (the allowable weight
loss for fine aggregate is 10 percent). The maximum weight loss for the samples tested
from the subject site was 1 percent (which is well within the allowable range).
• Reactivity ofAggregate: Reactive aggregates may result in deleterious mortar expansion.
This test method provides an empirical estimate of the potential reactivity of aggregate
with the alkalies that are present in portland cement concrete. The alkaline reactivity is
plotted against the dissolved silica in Figure X1.1 of this test method. The figure is
divided into areas with innocuous and deleterious aggregate based on case histories. All
of the tests from the subject site plot in the area of innocuous aggregate in Figure X1.1.
• LA Abrasion: This test is widely used as an indicator of the relative quality and durability
of an aggregate when exposed to mechanical weathering from a combination of abrasion,
impact and grinding forces. According to Section 200-1.4 of the 2003 Standard
Specifications for Public Works Construction, coarse aggregate used for portland cement
concrete should have a maximum 15 percent wear after 100 revolutions, and 52 percent
wear after 500 revolutions when tested in general accordance with ASTM C 131. The
five samples tested are all well within this allowable range.
We appreciate this opportunity to provide professional services. If you have any questions or
comments regarding this report or the services provided, please do not hesitate to contact us.
GEOTECHNICS INCORPORATED
A.
�
a C572 8 �z
Matthew A. Fagan, P.E. 7�'S 248 Exp.i �, oS Wee Vanderhurst, C.E.G. 1125
�- �
Project Engineer Principal
Distribution: (4) Addressee OF C�,L
Geotechnics Incorporated
SPECIFIC GRAVITY AND ABSORPTION (ASTM C127)
SAMPLE 1 2 3 4 5
APPARENT 2.68 2.68 2.68 2.68 2.68
S.S.D. 2.64 2.64 2.63 2.62 2.63
ABSORPTION
1.0 1.0 1.0 1.4 1.1
[%]
SODIUM SOUNDNESS (ASTM C88)
SAMPLE 1 2 3 4 5
WEIGHT
1.00 0.28 0.32 0.14 0.41
LOSS [%]
REACTIVITY OF AGGREGATE (ASTM C289)
SAMPLE 1 2 3 4 5
ALKALINE
45 50 50 50 50
REACTIVITY [mmol/L]
DISSOLVED
28 26 24 25 27
SILICA [mmol/L]
L.A. ABRASION (ASTM C131)
[ SAMPLE l 1 2 3 4 5
WEAR [%]
3.9 4.1 4.1 3.9 4.0
(100 REVOLUTIONS)
WEAR [%]
16.8 16.2 16.4 16.8 17.2
(500 REVOLUTIONS)
r G e o t e c h n i c s Project No. 1089-002-00
Incorporated
LABORATORY DATA Document No. 05-1282
FIGURE 1
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