HomeMy WebLinkAboutItem 6-Tentative Tract 38378 WQMP - Preliminary_2022-10-11- 1 -
Project Specific Water Quality Management Plan
A Template for Projects located within the Santa Ana Watershed Region of Riverside County
Project Title: 18 acre site at Mission Trail TTM 38378
Development No: Tentative Tract 38378
Design Review/Case No: PWQMP-2022-0005, Planning App#:2022-03 (Design Review#: 2022-02).
Original Date Prepared: March 4, 2022
Revision Date(s):
Prepared for Compliance with
Regional Board Order No. R8-2010-0033
Contact Information:
Prepared for: The Development at
Mission Trails - Lake Elsinore, LLC
1020 2nd Street
Encinitas, CA 92024
Brett Crowder, Project Manager
(949) 632-3122
Prepared by: Wilson Mikami Corporation
9 Corporate Park, Suite 100
Irvine, CA 92606
Scott M. Wilson, PE, PLS, Principal
(949) 679-0090
Preliminary
Final
- 2 -
A Brief Introduction
This Project-Specific WQMP Template for the Santa Ana Region has been prepared to help guide you in
documenting compliance for your project. Because this document has been designed to specifically
document compliance, you will need to utilize the WQMP Guidance Document as your “how-to” manual
to help guide you through this process. Both the Template and Guidance Document go hand-in-hand, and
will help facilitate a well prepared Project-Specific WQMP. Below is a flowchart for the layout of this
Template that will provide the steps required to document compliance.
Section A
Project and Site Information
Section B
Optimize Site Utilization
Section C
Delineate Drainage Management Areas (DMAs)
Section G
Source Control BMPs
Section I
Operation, Maintenance, and Funding
Section F
Hydromodification
Section E
Alternative Compliance
Section D
Implement LID BMPs
Section H
Construction Plan Checklist
- 3 -
OWNER’S CERTIFICATION
This Project-Specific Water Quality Management Plan (WQMP) has been prepared for The Development at Mission
Trails - Lake Elsinore, LLC by Wilson Mikami Corporation for The 18 acre site at Mission Trail TTM 38378 project.
This WQMP is intended to comply with the requirements of City of Lake Elsinore Grading Ordinance which includes
the requirement for the preparation and implementation of a Project-Specific WQMP.
The undersigned, while owning the property/project described in the preceding paragraph, shall be responsible for
the implementation and funding of this WQMP and will ensure that this WQMP is amended as appropriate to reflect
up-to-date conditions on the site. In addition, the property owner accepts responsibility for interim operation and
maintenance of Stormwater BMPs until such time as this responsibility is formally transferred to a subsequent
owner. This WQMP will be reviewed with the facility operator, facility supervisors, employees, tenants, maintenance
and service contractors, or any other party (or parties) having responsibility for implementing portions of this
WQMP. At least one copy of this WQMP will be maintained at the project site or project office in perpetuity. The
undersigned is authorized to certify and to approve implementation of this WQMP. The undersigned is aware that
implementation of this WQMP is enforceable under City of Lake Elsinore Water Quality Ordinance (Municipal Code
Chapter 14.08).
"I, the undersigned, certify under penalty of law that the provisions of this WQMP have been reviewed and accepted
and that the WQMP will be transferred to future successors in interest."
Owner’s Signature Date
Owner’s Printed Name Owner’s Title/Position
PREPARER’S CERTIFICATION
“The selection, sizing and design of stormwater treatment and other stormwater quality and quantity control
measures in this plan meet the requirements of Regional Water Quality Control Board Order No. R8-2010-0033 and
any subsequent amendments thereto.”
Preparer’s Signature Date
Scott M. Wilson Principal
Preparer’s Printed Name Preparer’s Title/Position
Preparer’s Licensure: RCE 49884
- 4 -
Table of Contents
Section A: Project and Site Information........................................................................................................ 6
A.1 Maps and Site Plans ............................................................................................................................ 6
A.2 Identify Receiving Waters ................................................................................................................... 7
A.3 Additional Permits/Approvals required for the Project: .................................................................... 7
Section B: Optimize Site Utilization (LID Principles) ..................................................................................... 8
Section C: Delineate Drainage Management Areas (DMAs) ......................................................................... 9
Section D: Implement LID BMPs ................................................................................................................. 10
D.1 Infiltration Applicability .................................................................................................................... 10
D.2 Harvest and Use Assessment ............................................................................................................ 12
D.3 Bioretention and Biotreatment Assessment .................................................................................... 14
D.4 Feasibility Assessment Summaries ................................................................................................... 15
D.5 LID BMP Sizing .................................................................................................................................. 16
Section E: Alternative Compliance (LID Waiver Program) .......................................................................... 17
E.1 Identify Pollutants of Concern .......................................................................................................... 18
E.2 Stormwater Credits ........................................................................................................................... 19
E.3 Sizing Criteria ..................................................................................................................................... 19
E.4 Treatment Control BMP Selection .................................................................................................... 20
Section F: Hydromodification ..................................................................................................................... 21
F.1 Hydrologic Conditions of Concern (HCOC) Analysis .......................................................................... 21
F.2 HCOC Mitigation ................................................................................................................................ 22
Section G: Source Control BMPs ................................................................................................................. 23
Section H: Construction Plan Checklist ....................................................................................................... 26
Section I: Operation, Maintenance and Funding ........................................................................................ 27
- 5 -
List of Tables
Table A.1 Identification of Receiving Waters ................................................................................................ 7
Table A.2 Other Applicable Permits .............................................................................................................. 7
Table C.1 DMA Classifications ....................................................................................................................... 9
Table C.2 Type ‘A’, Self-Treating Areas ......................................................................................................... 9
Table C.3 Type ‘B’, Self-Retaining Areas ....................................................................................................... 9
Table C.4 Type ‘C’, Areas that Drain to Self-Retaining Areas ........................................................................ 9
Table C.5 Type ‘D’, Areas Draining to BMPs ............................................................................................... 10
Table D.1 Infiltration Feasibility .................................................................................................................. 10
Table D.2 LID Prioritization Summary Matrix ............................................................................................. 15
Table D.3 DCV Calculations for LID BMPs ...................................................... Error! Bookmark not defined.
Table E.1 Potential Pollutants by Land Use Type ........................................................................................ 18
Table E.2 Water Quality Credits .................................................................................................................. 19
Table E.3 Treatment Control BMP Sizing ....................................................... Error! Bookmark not defined.
Table E.4 Treatment Control BMP Selection .............................................................................................. 20
Table F.1 Hydrologic Conditions of Concern Summary .............................................................................. 21
Table G.1 Permanent and Operational Source Control Measures ............................................................. 23
Table H.1 Construction Plan Cross-reference ............................................................................................. 26
List of Appendices
Appendix 1: Maps and Site Plans ................................................................................................................ 28
Appendix 2: Construction Plans .................................................................................................................. 29
Appendix 3: Soils Information ..................................................................................................................... 30
Appendix 4: Historical Site Conditions ........................................................................................................ 31
Appendix 5: LID Infeasibility ........................................................................................................................ 32
Appendix 6: BMP Design Details ................................................................................................................. 33
Appendix 7: Hydromodification .................................................................................................................. 34
Appendix 8: Source Control ........................................................................................................................ 35
Appendix 9: O&M ....................................................................................................................................... 36
Appendix 10: Educational Materials ....................................................................................................... - 38 -
- 6 -
Section A: Project and Site Information
PROJECT INFORMATION
Type of Project: Mixed Use: Single Family Residential
Planning Area: East Lake Specific Plan
Community Name: East Lake Specific Plan
Development Name: Tentative Tract 38378, 18 Acre Site at Mission Trail
PROJECT LOCATION
Latitude & Longitude (DMS): 33°38'3"N, 117°17'28"W (33.634167, 117.291111)
Project Watershed and Sub-Watershed: Santa Ana River Watershed and San Jacinto River Sub-Watershed
APN(s): 370-050-019, 020 and 032
Map Book and Page No.: Map Book 543, Pages 259
PROJECT CHARACTERISTICS
Proposed or Potential Land Use(s) Singled Family Residential
Proposed or Potential SIC Code(s) 1522
Area of Impervious Project Footprint (SF) 788,192 SF
Total Area of proposed Impervious Surfaces within the Project Limits (SF)/or Replacement 507,769 SF
Does the project consist of offsite road improvements? Y N
Does the project propose to construct unpaved roads? Y N
Is the project part of a larger common plan of development (phased project)? Y N
EXISTING SITE CHARACTERISTICS
Total area of existing Impervious Surfaces within the project limits (SF) 0
Is the project located within any MSHCP Criteria Cell? Y N
If so, identify the Cell number:
Are there any natural hydrologic features on the project site? Y N
Is a Geotechnical Report attached? Y N
If no Geotech. Report, list the NRCS soils type(s) present on the site (A, B, C and/or D): See Appendix 3
What is the Water Quality Design Storm Depth for the project? 0.80 in
A.1 Maps and Site Plans
When completing your Project-Specific WQMP, include a map of the local vicinity and existing site. In
addition, include all grading, drainage, landscape/plant palette and other pertinent construction plans in
Appendix 2. At a minimum, your WQMP Site Plan should include the following:
• Drainage Management Areas
• Proposed Structural BMPs
• Drainage Path
• Drainage Infrastructure, Inlets, Overflows
• Source Control BMPs
• Buildings, Roof Lines, Downspouts
• Impervious Surfaces
• Standard Labeling
Use your discretion on whether or not you may need to create multiple sheets or can appropriately
accommodate these features on one or two sheets. Keep in mind that the Co-Permittee plan reviewer
must be able to easily analyze your project utilizing this template and its associated site plans and maps.
- 7 -
The project site currently is a vacant site with little ground cover and no current uses for the site. The
proposed project is duplex condominium homes with a total on-site project area of 9.72 acres. The total
impervious area is 6.97 acres and pervious area is 2.75 acres.
A.2 Identify Receiving Waters
Using Table A.1 below, list in order of upstream to downstream, the receiving waters that the project site
is tributary to. Continue to fill each row with the Receiving Water’s 303(d) listed impairments (if any),
designated beneficial uses, and proximity, if any, to a RARE beneficial use. Include a map of the receiving
waters in Appendix 1.
Table A.1 Identification of Receiving Waters
Receiving Waters EPA Approved 303(d) List
Impairments
Designated
Beneficial Uses
Proximity to RARE
Beneficial Use
Lake Elsinore Nutrients
Organic Enrichment/Low Dissolved Oxygen
PCBs (Polychlorinated biphenyls)
Unknown Toxicity
MUN, AGR, GWR,
REC1, REC2, COLD,
WILD
N/A
A.3 Additional Permits/Approvals required for the Project:
Table A.2 Other Applicable Permits
Agency Permit Required
State Department of Fish and Game, 1602 Streambed Alteration Agreement Y N
State Water Resources Control Board, Clean Water Act (CWA) Section 401 Water Quality Cert. Y N
US Army Corps of Engineers, CWA Section 404 Permit Y N
US Fish and Wildlife, Endangered Species Act Section 7 Biological Opinion Y N
Statewide Construction General Permit Coverage Y N
Statewide Industrial General Permit Coverage Y N
Western Riverside MSHCP Consistency Approval (e.g., JPR, DBESP) Y N
Other (please list in the space below as required)
City Building and Grading Permit Y N
If yes is answered to any of the questions above, the Co-Permittee may require proof of
approval/coverage from those agencies as applicable including documentation of any associated
requirements that may affect this Project-Specific WQMP.
- 8 -
Section B: Optimize Site Utilization (LID Principles)
Site Optimization
The following questions are based upon Section 3.2 of the WQMP Guidance Document. Review of the
WQMP Guidance Document will help you determine how best to optimize your site and subsequently
identify opportunities and/or constraints, and document compliance.
Did you identify and preserve existing drainage patterns? If so, how? If not, why?
The site layout conforms to natural landform, which drains from east to west direction.
Did you identify and protect existing vegetation? If so, how? If not, why?
N/A, no significant trees and other natural vegetation to preserve.
Did you identify and preserve natural infiltration capacity? If so, how? If not, why?
N/A, Infiltration BMPs are not to be used for this site per Section D.1
Did you identify and minimize impervious area? If so, how? If not, why?
Landscape areas are proposed where possible to minimize impervious areas.
Did you identify and disperse runoff to adjacent pervious areas? If so, how? If not, why?
Stormwater is proposed to be intercepted in inlets in designated landscaped areas and discharged into
bioretention treatment Filterra Units and then discharge into the existing four corner storm drain systems
which ultimately discharges directly to Lake Elsinore.
- 9 -
Section C: Delineate Drainage Management Areas
(DMAs)
Table C.1 DMA Classifications
DMA Name or ID Surface Type(s)1 Area (Sq. Ft.) DMA Type
A Roofs, Asphalt, and Landscaping 103,080 Type D
B Roofs, Asphalt, and Landscaping 56,857 Type D
C Roofs, Asphalt, and Landscaping 106,359 Type D
D Roofs, Asphalt, and Landscaping 76,075 Type D
E Roofs, Asphalt, and Landscaping 76,789 Type D
F Roofs, Asphalt, and Landscaping 100,711 Type D
G Roofs, Asphalt, and Landscaping 45,891 Type D
H Roofs, Asphalt, and Landscaping 51,632 Type D
I Roofs, Asphalt, and Landscaping 62,238 Type D
J Roofs, Asphalt, and Landscaping 43,485 Type D
K Asphalt and Landscaping 38,145 Type D
1Reference Table 2-1 in the WQMP Guidance Document to populate this column
Table C.2 Type ‘A’, Self-Treating Areas
DMA Name or ID Area (Sq. Ft.) Stabilization Type Irrigation Type (if any)
N/A
Table C.3 Type ‘B’, Self-Retaining Areas
Self-Retaining Area
Type ‘C’ DMAs that are draining to the Self-Retaining
Area
DMA
Name/
ID
Post-project
surface type
Area
(square
feet)
Storm
Depth
(inches) DMA Name /
ID
[C] from Table C.4 =
Required Retention Depth
(inches)
[A] [B] [C] [D]
N/A [𝐷𝐷]=[𝐵𝐵]+[𝐵𝐵]∙[𝐶𝐶][𝐴𝐴]
Table C.4 Type ‘C’, Areas that Drain to Self-Retaining Areas
DMA Receiving Self-Retaining DMA DMA Name/ ID Area (square feet) Post-project surface type Runoff factor Product
DMA name /ID
Area (square
feet) Ratio
[A] [B] [C] = [A] x [B] [D] [C]/[D]
- 10 -
Table C.5 Type ‘D’, Areas Draining to BMPs
DMA Name or ID BMP Name or ID
A Bioretention BMP Filterra Model FTBSV0610
B Bioretention BMP Filterra Model FTBSV0608
C Bioretention BMP Filterra Model FTBSV0608
D Bioretention BMP Filterra Model FTIBC0610-C
E Bioretention BMP Filterra Model FTIBC 0610-C
F Bioretention BMP Filterra Model FTBSV0612
G Bioretention BMP Filterra Model FTBSV0606
H Bioretention BMP Filterra Model FTBSV0606
I Bioretention BMP Filterra Model FTBSV0608
J Bioretention BMP Filterra Model FTBSV0606
K Bioretention BMP Filterra Model FTBSV0606
Note: More than one drainage management area can drain to a single LID BMP, however, one
drainage management area may not drain to more than one BMP.
Section D: Implement LID BMPs
D.1 Infiltration Applicability
Is there an approved downstream ‘Highest and Best Use’ for stormwater runoff (see discussion in Chapter
2.4.4 of the WQMP Guidance Document for further details)? Y N Lake Elsinore
If yes has been checked, Infiltration BMPs shall not be used for the site. If no, continue working through
this section to implement your LID BMPs. It is recommended that you contact your Co-Permittee to verify
whether or not your project discharges to an approved downstream ‘Highest and Best Use’ feature.
Geotechnical Report
Is this project classified as a small project consistent with the requirements of Chapter 2 of the WQMP
Guidance Document? Y N
Infiltration Feasibility
Table D.1 Infiltration Feasibility
Does the project site… YES NO
…have any DMAs with a seasonal high groundwater mark shallower than 10 feet? X
If Yes, list affected DMAs:
…have any DMAs located within 100 feet of a water supply well? X
If Yes, list affected DMAs:
…have any areas identified by the geotechnical report as posing a public safety risk where infiltration of stormwater
could have a negative impact?
X
If Yes, list affected DMAs:
…have measured in-situ infiltration rates of less than 1.6 inches / hour? Has not been studied yet. X
If Yes, list affected DMAs:
…have significant cut and/or fill conditions that would preclude in-situ testing of infiltration rates at the final
infiltration surface?
X
If Yes, list affected DMAs:
…geotechnical report identify other site-specific factors that would preclude effective and safe infiltration? X
- 11 -
Describe here:
If you answered “Yes” to any of the questions above for any DMA, Infiltration BMPs should not be used
for those DMAs and you should proceed to the assessment for Harvest and Use below.
- 12 -
D.2 Harvest and Use Assessment (N/A)
Please check what applies:
Reclaimed water will be used for the non-potable water demands for the project.
Downstream water rights may be impacted by Harvest and Use as approved by the Regional
Board (verify with the Copermittee).
The Design Capture Volume will be addressed using Infiltration Only BMPs. In such a case,
Harvest and Use BMPs are still encouraged, but it would not be required if the Design Capture
Volume will be infiltrated or evapotranspired.
If any of the above boxes have been checked, Harvest and Use BMPs need not be assessed for the site. If
neither of the above criteria applies, follow the steps below to assess the feasibility of irrigation use, toilet
use and other non-potable uses (e.g., industrial use).
Irrigation Use Feasibility
Complete the following steps to determine the feasibility of harvesting stormwater runoff for Irrigation
Use BMPs on your site:
Step 1: Identify the total area of irrigated landscape on the site, and the type of landscaping used.
Total Area of Irrigated Landscape: 280,423 SF
Type of Landscaping (Conservation Design or Active Turf): Active Turf
Step 2: Identify the planned total of all impervious areas on the proposed project from which runoff
might be feasibly captured and stored for irrigation use. Depending on the configuration of
buildings and other impervious areas on the site, you may consider the site as a whole, or parts
of the site, to evaluate reasonable scenarios for capturing and storing runoff and directing the
stored runoff to the potential use(s) identified in Step 1 above.
Total Area of Impervious Surfaces: 507,769 SF
Step 3: Cross reference the Design Storm depth for the project site (see Exhibit A of the WQMP
Guidance Document) with the left column of Table 2-3 in Chapter 2 to determine the minimum
area of Effective Irrigated Area per Tributary Impervious Area (EIATIA).
Enter your EIATIA factor: 0.98
Step 4: Multiply the unit value obtained from Step 3 by the total of impervious areas from Step 2 to
develop the minimum irrigated area that would be required.
Minimum required irrigated area: 497,614 SF
Step 5: Determine if harvesting stormwater runoff for irrigation use is feasible for the project by
comparing the total area of irrigated landscape (Step 1) to the minimum required irrigated area
(Step 4).
Minimum required irrigated area (Step 4) Available Irrigated Landscape (Step 1)
497,614 SF 280,423 SF
Conclusion: harvesting stormwater for irrigation use is not feasible.
- 13 -
Toilet Use Feasibility
Complete the following steps to determine the feasibility of harvesting stormwater runoff for toilet
flushing uses on your site:
Step 1: Identify the projected total number of daily toilet users during the wet season, and account for
any periodic shut downs or other lapses in occupancy:
Projected Number of Daily Toilet Users: 478
Project Type: Single Family Residential
Step 2: Identify the planned total of all impervious areas on the proposed project from which runoff
might be feasibly captured and stored for toilet use. Depending on the configuration of
buildings and other impervious areas on the site, you may consider the site as a whole, or parts
of the site, to evaluate reasonable scenarios for capturing and storing runoff and directing the
stored runoff to the potential use(s) identified in Step 1 above.
Total Area of Impervious Surfaces: 507,769 SF
Step 3: Enter the Design Storm depth for the project site (see Exhibit A) into the left column of Table 2-
1 in Chapter 2 to determine the minimum number or toilet users per tributary impervious acre
(TUTIA).
Enter your TUTIA factor: 131 tu/acre
Step 4: Multiply the unit value obtained from Step 3 by the total of impervious areas from Step 2 to
develop the minimum number of toilet users that would be required.
Minimum number of toilet users: 1,527
Step 5: Determine if harvesting stormwater runoff for toilet flushing use is feasible for the project by
comparing the Number of Daily Toilet Users (Step 1) to the minimum required number of toilet
users (Step 4).
Minimum required Toilet Users (Step 4) Projected number of toilet users (Step 1)
1,527 478
Conclusion: harvesting stormwater for toilet flushing use is not feasible.
Other Non-Potable Use Feasibility (N/A)
Are there other non-potable uses for stormwater runoff on the site (e.g. industrial use)? See Chapter 2 of
the Guidance for further information. If yes, describe below. If no, write N/A.
N/A
Step 1: Identify the projected average daily non-potable demand, in gallons per day, during the wet
season and accounting for any periodic shut downs or other lapses in occupancy or operation.
Average Daily Demand:
Step 2: Identify the planned total of all impervious areas on the proposed project from which runoff
might be feasibly captured and stored for the identified non-potable use. Depending on the
configuration of buildings and other impervious areas on the site, you may consider the site as
a whole, or parts of the site, to evaluate reasonable scenarios for capturing and storing runoff
and directing the stored runoff to the potential use(s) identified in Step 1 above.
Total Area of Impervious Surfaces:
- 14 -
Step 3: Enter the Design Storm depth for the project site (see Exhibit A) into the left column of Table 2-
3 in Chapter 2 to determine the minimum demand for non-potable uses per tributary
impervious acre.
Enter the factor from Table 2-3:
Step 4: Multiply the unit value obtained from Step 4 by the total of impervious areas from Step 3 to
develop the minimum number of gallons per day of non-potable use that would be required.
Minimum required use:
Step 5: Determine if harvesting stormwater runoff for other non-potable use is feasible for the project
by comparing the Number of Daily Toilet Users (Step 1) to the minimum required number of
toilet users (Step 4).
Minimum required non-potable use (Step 4) Projected average daily use (Step 1)
If Irrigation, Toilet and Other Use feasibility anticipated demands are less than the applicable minimum
values, Harvest and Use BMPs are not required and you should proceed to utilize LID Bioretention and
Biotreatment, unless a site-specific analysis has been completed that demonstrates technical infeasibility
as noted in D.3 below.
D.3 Bioretention and Biotreatment Assessment
Other LID Bioretention and Biotreatment BMPs as described in Chapter 2.4.7 of the WQMP Guidance
Document are feasible on nearly all development sites with sufficient advance planning.
Select one of the following:
LID Bioretention/Biotreatment BMPs will be used for some or all DMAs of the project as noted
below in Section D.4 (note the requirements of Section 3.4.2 in the WQMP Guidance
Document).
A site-specific analysis demonstrating the technical infeasibility of all LID BMPs has been
performed and is included in Appendix 5. If you plan to submit an analysis demonstrating the
technical infeasibility of LID BMPs, request a pre-submittal meeting with the Copermittee to
discuss this option. Proceed to Section E to document your alternative compliance measures.
- 15 -
D.4 Feasibility Assessment Summaries
From the Infiltration, Harvest and Use, Bioretention and Biotreatment Sections above, complete Table
D.2 below to summarize which LID BMPs are technically feasible, and which are not, based upon the
established hierarchy.
Table D.2 LID Prioritization Summary Matrix
DMA
Name/ID
LID BMP Hierarchy No LID
(Alternative
Compliance) 1. Infiltration 2. Harvest and use 3. Bioretention 4. Biotreatment
A
B
C
D
E
F
G
H
I
J
K
For those DMAs where LID BMPs are not feasible, provide a brief narrative below summarizing why they
are not feasible, include your technical infeasibility criteria in Appendix 5, and proceed to Section E below
to document Alternative Compliance measures for those DMAs. Recall that each proposed DMA must
pass through the LID BMP hierarchy before alternative compliance measures may be considered.
The project discharges to Lake Elsinore which has an approved downstream ‘Highest and Best Use’ for
storm water runoff per the WQMP Guidance documents. As a result, no infiltration BMPs are proposed
for the project.
DMA A-K – A Filterra Bioretention System BMP Unit will be installed to treat street/hardscape and
landscape runoff within the site prior to discharging the flow off-site. This project discharges to approved
downstream ‘Highest and Best Use’ for stormwater runoff, Lake Elsinore.
- 16 -
D.5 LID BMP Sizing
Each LID BMP must be designed to ensure that the Design Capture Volume will be addressed by the
selected BMPs. First, calculate the Design Capture Volume for each LID BMP using the VBMP worksheet in
Appendix F of the LID BMP Design Handbook. Second, design the LID BMP to meet the required VBMP using
a method approved by the Copermittee. Utilize the worksheets found in the LID BMP Design Handbook
or consult with your Copermittee to assist you in correctly sizing your LID BMPs. Complete Table D.3 below
to document the Design Capture Volume and the Proposed Volume for each LID BMP. Provide the
completed design procedure sheets for each LID BMP in Appendix 6. You may add additional rows to the
table below as needed.
The project discharges to Lake Elsinore which has an approved downstream ‘Highest and Best Use’ for
storm water runoff per the WQMP Guidance documents. As a result, a volume based LID BMP is not
proposed for the project. A flow based BMP is proposed for the project.
Table D.3 Calculations for LID BMPs
DMA
Type/ID
DMA
Area
(square
feet)
Post-
Project
Surface
Type
Effective
Impervious
Fraction, If
DMA
Runoff
Factor
DMA
Areas x
Runoff
Factor
Filterra Bioretention System
[A] [B] [C] [A] x [C]
A 103,080 Mixed 0.704 0.50 51,301
Design
Rainfall
Intensity
(in/hr)
Design Flow
Rate, QBMP
(cubic feet per
second)
Proposed
Flow Rate
on Plans
(cubic
feet per
second)
[G]
B 56,857 Mixed 0.769 0.56 32,075
C 106,359 Mixed 0.585 0.40 42,291
D 76,075 Mixed 0.814 0.62 46,860
E 76,789 Mixed 0.807 0.61 46,655
F 100,711 Mixed 0.763 0.56 56,115
G 45,891 Mixed 0.750 0.54 24,952
H 51,632 Mixed 0.735 0.53 27,272
I 62,238 Mixed 0.724 0.52 32,185
J 43,485 Mixed 0.778 0.57 24,964
K 38,145 Mixed 0.875 0.69 26,505
761,262 411175 0.20 1.89 2.0
[B], [C] is obtained as described in Section 2.3.1 of the WQMP Guidance Document
[E] is obtained from Exhibit A in the WQMP Guidance Document
[G] is obtained from a design procedure sheet, such as in LID BMP Design Handbook and placed in Appendix 6. The project
discharges to Lake Elsinore which has an approved downstream ‘Highest and Best Use’ for storm water runoff per the WQMP
Guidance documents. As a result, no infiltration LID BMPs are proposed for the project. A flow based BMP is proposed for the
project.
- 17 -
Section E: Alternative Compliance (LID Waiver Program)
LID BMPs are expected to be feasible on virtually all projects. Where LID BMPs have been demonstrated
to be infeasible as documented in Section D, other Treatment Control BMPs must be used (subject to LID
waiver approval by the Co-permittee). Check one of the following Boxes:
LID Principles and LID BMPs have been incorporated into the site design to fully address all
Drainage Management Areas. No alternative compliance measures are required for this project
and thus this Section is not required to be completed.
- Or -
The following Drainage Management Areas are unable to be addressed using LID BMPs. A site-
specific analysis demonstrating technical infeasibility of LID BMPs has been approved by the
Co-Permittee and included in Appendix 5. Additionally, no downstream regional and/or sub-
regional LID BMPs exist or are available for use by the project. The following alternative
compliance measures on the following pages are being implemented to ensure that any pollutant
loads expected to be discharged by not incorporating LID BMPs, are fully mitigated.
- 18 -
E.1 Identify Pollutants of Concern
Utilizing Table A.1 from Section A above which noted your project’s receiving waters and their associated
EPA approved 303(d) listed impairments, cross reference this information with that of your selected
Priority Development Project Category in Table E.1 below. If the identified General Pollutant Categories
are the same as those listed for your receiving waters, then these will be your Pollutants of Concern and
the appropriate box or boxes will be checked on the last row. The purpose of this is to document
compliance and to help you appropriately plan for mitigating your Pollutants of Concern in lieu of
implementing LID BMPs.
Table E.1 Potential Pollutants by Land Use Type
Priority Development
Project Categories and/or Project Features (check those that apply)
General Pollutant Categories
Bacterial Indicators Metals Nutrients Pesticides Toxic Organic Compounds Sediments Trash & Debris Oil & Grease
Detached Residential
Development P N P P N P P P
Attached Residential
Development P N P P N P P P(2)
Commercial/Industrial
Development P(3) P P(1) P(1) P(5) P(1) P P
Automotive Repair
Shops N P N N P(4, 5) N P P
Restaurants
(>5,000 ft2) P N N N N N P P
Hillside Development
(>5,000 ft2) P N P P N P P P
Parking Lots
(>5,000 ft2) P(6) P P(1) P(1) P(4) P(1) P P
Retail Gasoline Outlets N P N N P N P P
Project Priority Pollutant(s)
of Concern
P = Potential
N = Not Potential
(1) A potential Pollutant if non-native landscaping exists or is proposed onsite; otherwise not expected
(2) A potential Pollutant if the project includes uncovered parking areas; otherwise not expected
(3) A potential Pollutant is land use involving animal waste
(4) Specifically petroleum hydrocarbons
(5) Specifically solvents
(6) Bacterial indicators are routinely detected in pavement runoff
- 19 -
E.2 Stormwater Credits
Projects that cannot implement LID BMPs but nevertheless implement smart growth principles are
potentially eligible for Stormwater Credits. Utilize Table 3-8 within the WQMP Guidance Document to
identify your Project Category and its associated Water Quality Credit. If not applicable, write N/A.
Table E.2 Water Quality Credits
Qualifying Project Categories Credit Percentage2
N/A
Total Credit Percentage1
1Cannot Exceed 50%
2Obtain corresponding data from Table 3-8 in the WQMP Guidance Document
E.3 Sizing Criteria
After you appropriately considered Stormwater Credits for your project, utilize Table E.3 below to
appropriately size them to the DCV, or Design Flow Rate, as applicable. Please reference Chapter 3.5.2 of
the WQMP Guidance Document for further information.
Table E.3 Treatment Control BMP Sizing
DMA
Type/ID
DMA
Area
(square
feet)
Post-
Project
Surface
Type
Effective
Impervious
Fraction, If
DMA
Runoff
Factor
DMA
Areas x
Runoff
Factor
Filterra Bioretention System
[A] [B] [C] [A] x [C]
A 103,080 Mixed 0.704 0.50 51,301
Design
Storm
Depth
(in)
Minimum
Design Flow
Rate (cubic feet
or cfs)
Proposed
Flow Rate
on Plans
(cubic
feet per
second)
[G]
B 56,857 Mixed 0.769 0.56 32,075
C 106,359 Mixed 0.585 0.40 42,291
D 76,075 Mixed 0.814 0.62 46,860
E 76,789 Mixed 0.807 0.61 46,655
F 100,711 Mixed 0.763 0.56 56,115
G 45,891 Mixed 0.750 0.54 24,952
H 51,632 Mixed 0.735 0.53 27,272
I 62,238 Mixed 0.724 0.52 32,185
J 43,485 Mixed 0.778 0.57 24,964
K 38,145 Mixed 0.875 0.69 26,505
761,262 411175 0.80 1.89 2.0
[B], [C] is obtained as described in Section 2.3.1 from the WQMP Guidance Document
[E] is obtained from Exhibit A in the WQMP Guidance Document
[G] is for Flow-Based Treatment Control BMPs [G] = 43,560, for Volume-Based Control Treatment BMPs, [G] = 12
[H] is from the Total Credit Percentage as Calculated from Table E.2 above
[I] as obtained from a design procedure sheet from the BMP manufacturer and should be included in Appendix 6
- 20 -
E.4 Treatment Control BMP Selection
Treatment Control BMPs typically provide proprietary treatment mechanisms to treat potential pollutants
in runoff, but do not sustain significant biological processes. Treatment Control BMPs must have a removal
efficiency of a medium or high effectiveness as quantified below:
• High: equal to or greater than 80% removal efficiency
• Medium: between 40% and 80% removal efficiency
Such removal efficiency documentation (e.g., studies, reports, etc.) as further discussed in Chapter 3.5.2
of the WQMP Guidance Document, must be included in Appendix 6. In addition, ensure that proposed
Treatment Control BMPs are properly identified on the WQMP Site Plan in Appendix 1.
Table E.4 Treatment Control BMP Selection
Selected Treatment Control BMP
Name or ID1
Priority Pollutant(s) of
Concern to Mitigate2
Removal Efficiency
Percentage3
Filterra Units (DMA A-K)
Bioretention BMP
Nutrients, Metals, Toxic
Organic Compounds, Trash
and Debris, Oil and Grease
High removal efficiency
1 Treatment Control BMPs must not be constructed within Receiving Waters. In addition, a proposed Treatment Control BMP may be
listed more than once if they possess more than one qualifying pollutant removal efficiency.
2 Cross Reference Table E.1 above to populate this column.
3 As documented in a Co-Permittee Approved Study and provided in Appendix 6.
- 21 -
Section F: Hydromodification
F.1 Hydrologic Conditions of Concern (HCOC) Analysis
Once you have determined that the LID design is adequate to address water quality requirements, you
will need to assess if the proposed LID Design may still create a HCOC. Review Chapters 2 and 3 (including
Figure 3-7) of the WQMP Guidance Document to determine if your project must mitigate for
Hydromodification impacts. If your project meets one of the following criteria which will be indicated by
the check boxes below, you do not need to address Hydromodification at this time. However, if the
project does not qualify for Exemptions 1, 2 or 3, then additional measures must be added to the design
to comply with HCOC criteria. This is discussed in further detail below in Section F.2.
HCOC EXEMPTION 1: The Priority Development Project disturbs less than one acre. The Copermittee
has the discretion to require a Project-Specific WQMP to address HCOCs on projects less than one
acre on a case by case basis. The disturbed area calculation should include all disturbances associated
with larger common plans of development.
Does the project qualify for this HCOC Exemption? Y N
If Yes, HCOC criteria do not apply.
HCOC EXEMPTION 2: The volume and time of concentration1 of storm water runoff for the post-
development condition is not significantly different from the pre-development condition for a 2-year
return frequency storm (a difference of 5% or less is considered insignificant) using one of the
following methods to calculate:
• Riverside County Hydrology Manual
• Technical Release 55 (TR-55): Urban Hydrology for Small Watersheds (NRCS 1986), or
derivatives thereof, such as the Santa Barbara Urban Hydrograph Method
• Other methods acceptable to the Co-Permittee
Does the project qualify for this HCOC Exemption? Y N
If Yes, report results in Table F.1 below and provide your substantiated hydrologic analysis in
Appendix 7.
Table F.1 Hydrologic Conditions of Concern Summary
2 year – 24 hour
Pre-condition Post-condition % Difference
Time of
Concentration
Volume (Cubic Feet)
1 Time of concentration is defined as the time after the beginning of the rainfall when all portions of the drainage basin
are contributing to flow at the outlet.
- 22 -
HCOC EXEMPTION 3: All downstream conveyance channels to an adequate sump (for example,
Prado Dam, Lake Elsinore, Canyon Lake, Santa Ana River, or other lake, reservoir or naturally
erosion resistant feature) that will receive runoff from the project are engineered and regularly
maintained to ensure design flow capacity; no sensitive stream habitat areas will be adversely
affected; or are not identified on the Co-Permittees Hydromodification Sensitivity Maps.
Does the project qualify for this HCOC Exemption? Y N
If Yes, HCOC criteria do not apply and note below which adequate sump applies to this HCOC
qualifier:
Downstream conveyance channels directly into Lake Elsinore which is engineered and regularly
maintained to ensure design flow capacity.
F.2 HCOC Mitigation
If none of the above HCOC Exemption Criteria are applicable, HCOC criteria is considered mitigated if they
meet one of the following conditions:
a. Additional LID BMPS are implemented onsite or offsite to mitigate potential erosion or habitat
impacts as a result of HCOCs. This can be conducted by an evaluation of site-specific conditions
utilizing accepted professional methodologies published by entities such as the California
Stormwater Quality Association (CASQA), the Southern California Coastal Water Research Project
(SCCRWP), or other Co-Permittee approved methodologies for site-specific HCOC analysis.
b. The project is developed consistent with an approved Watershed Action Plan that addresses
HCOC in Receiving Waters.
c. Mimicking the pre-development hydrograph with the post-development hydrograph, for a 2-year
return frequency storm. Generally, the hydrologic conditions of concern are not significant, if the
post-development hydrograph is no more than 10% greater than pre-development hydrograph.
In cases where excess volume cannot be infiltrated or captured and reused, discharge from the
site must be limited to a flow rate no greater than 110% of the pre-development 2-year peak flow.
Be sure to include all pertinent documentation used in your analysis of the items a, b or c in Appendix 7.
- 23 -
Section G: Source Control BMPs
Source control BMPs include permanent, structural features that may be required in your project plans —
such as roofs over and berms around trash and recycling areas — and Operational BMPs, such as regular
sweeping and “housekeeping”, that must be implemented by the site’s occupant or user. The MEP
standard typically requires both types of BMPs. In general, Operational BMPs cannot be substituted for a
feasible and effective permanent BMP. Using the Pollutant Sources/Source Control Checklist in Appendix
8, review the following procedure to specify Source Control BMPs for your site:
1. Identify Pollutant Sources: Review Column 1 in the Pollutant Sources/Source Control Checklist. Check
off the potential sources of Pollutants that apply to your site.
2. Note Locations on Project-Specific WQMP Exhibit: Note the corresponding requirements listed in
Column 2 of the Pollutant Sources/Source Control Checklist. Show the location of each Pollutant
source and each permanent Source Control BMP in your Project-Specific WQMP Exhibit located in
Appendix 1.
3. Prepare a Table and Narrative: Check off the corresponding requirements listed in Column 3 in the
Pollutant Sources/Source Control Checklist. In the left column of Table G.1 below, list each potential
source of runoff Pollutants on your site (from those that you checked in the Pollutant Sources/Source
Control Checklist). In the middle column, list the corresponding permanent, Structural Source Control
BMPs (from Columns 2 and 3 of the Pollutant Sources/Source Control Checklist) used to prevent
Pollutants from entering runoff. Add additional narrative in this column that explains any special
features, materials or methods of construction that will be used to implement these permanent,
Structural Source Control BMPs.
4. Identify Operational Source Control BMPs: To complete your table, refer once again to the Pollutant
Sources/Source Control Checklist. List in the right column of your table the Operational BMPs that
should be implemented as long as the anticipated activities continue at the site. Copermittee
stormwater ordinances require that applicable Source Control BMPs be implemented; the same BMPs
may also be required as a condition of a use permit or other revocable Discretionary Approval for use
of the site.
Table G.1 Permanent and Operational Source Control Measures
Potential Sources of Runoff
pollutants
Permanent Structural Source
Control BMPs
Operational Source Control BMPs
On-site storm drain inlets*
Mark all inlets with the
words “Only Rain Down the
Storm Drain” or similar.
Catch Basin Markers may
be available from the
Riverside County Flood
Control and Water
Conservation District, call
951.955.1200 to verify.
Maintain and periodically repaint or
replace inlet markings.
Provide stormwater pollution prevention
information to new site owners, lessees,
or operators.
See applicable operational BMPs in Fact
Sheet SC-44, “Drainage System
Maintenance,” in the CASQA Stormwater
Quality Handbooks at
www.cabmphandbooks.com
- 24 -
Include the following in lease agreements:
“Tenant shall not allow anyone to
discharge anything to storm drains or to
store or deposit materials so as to create a
potential discharge to storm drains.”
Landscape/Outdoor
Pesticide use*
Final landscape plans will
accomplish all of the
following.
Preserve existing native
trees, shrubs, and ground
cover to the maximum
extent possible.
Design landscaping to
minimize irrigation and
runoff, to promote surface
infiltration where
appropriate, and to
minimize the use of
fertilizers and pesticides
that can contribute to
stormwater pollution.
Where landscaped areas
are used to retain or detain
stormwater, specify plants
that are tolerant of
saturated soil conditions.
Consider using pest-
resistant plants, especially
adjacent to hardscape.
To insure successful
establishment, select plants
appropriate to site soils,
slopes, climate, sun, wind,
rain, land use, air
movement, ecological
consistency, and plant
interactions.
Maintain landscaping using minimum or
no pesticides.
See applicable operational BMPs in “What
you should know for….Landscape and
Gardening” at
https://www.rcwatershed.org/wpcontent/
uploads/2015/12/Landscapingand-
Gardening-Guide.pdf
Provide IPM information to new owners,
lessees, and operators.
Food Service* N/A N/A
Refuse Areas*
Several site refuse trash
enclosures are included in
the proposed plan. Refuse
will be removed from the
site by the City refuse
department/contractors.
Provide adequate number of receptacles.
Inspect receptacles regularly; repair or
replace leaky receptacles. Keep
receptacles covered. Prohibit/prevent
dumping of liquid or hazardous wastes.
Post “no hazardous materials” signs.
Inspect and pick up litter daily and clean
up spills immediately. Keep spill control
- 25 -
Signs will be posted on or
near dumpsters with the
words “Do not dump
hazardous materials here”
or similar.
materials available on-site. See Fact Sheet
SC-34, “Waste Handling and Disposal” in
the CASQA Stormwater Quality
Handbooks at
www.cabmphandbooks.com
Loading docks*
N/A
Move loaded and unloaded items indoors
as soon as possible.
See Fact Sheet SC-30, “Outdoor Loading
and Unloading,” in the CASQA Stormwater
Quality Handbooks at
www.cabmphandbooks.com
Fire Sprinkler Test Water*
Provide a means to drain
fire sprinkler test water to
the sanitary sewer.
See the note in Fact Sheet SC-41, “Building
and Grounds Maintenance,” in the CASQA
Stormwater Quality Handbooks at
www.cabmphandbooks.com
Miscellaneous Drain or
Wash Water or Other
Sources:
Condensate drain lines
Rooftop equipment
Roofing, gutters, and trim.
Condensate drain lines may
discharge to landscaped
areas if the flow is small
enough that runoff will not
occur. Condensate drain
lines may not discharge to
the storm drain system.
Rooftop equipment with
potential to produce
pollutants shall be roofed
and/or have secondary
containment.
Avoid roofing, gutters, and
trim made of copper or
other
unprotected metals that
may leach into runoff.
N/A
Plazas, sidewalks, and
parking *lots* N/A
Sweep plazas, sidewalks, and parking lots
regularly to prevent accumulation of litter
and debris. Collect debris from pressure
washing to prevent entry into the storm
drain system. Collect washwater
containing any cleaning agent or
degreaser and discharge to the sanitary
sewer not to a storm drain.
*See Appendix 8
- 26 -
Section H: Construction Plan Checklist (To be Filled out in Final WQMP)
Populate Table H.1 below to assist the plan checker in an expeditious review of your project. The first two
columns will contain information that was prepared in previous steps, while the last column will be
populated with the corresponding plan sheets. This table is to be completed with the submittal of your
final Project-Specific WQMP.
Table H.1 Construction Plan Cross-reference
BMP No. or ID BMP Identifier and Description Corresponding Plan Sheet(s)
Units A-K Filterra Bioretention Systems TBD Storm Drain Plans
Note that the updated table — or Construction Plan WQMP Checklist — is only a reference tool to facilitate
an easy comparison of the construction plans to your Project-Specific WQMP. Co-Permittee staff can
advise you regarding the process required to propose changes to the approved Project-Specific WQMP.
- 27 -
Section I: Operation, Maintenance and Funding
The Copermittee will periodically verify that Stormwater BMPs on your site are maintained and continue
to operate as designed. To make this possible, your Copermittee will require that you include in Appendix
9 of this Project-Specific WQMP:
1. A means to finance and implement facility maintenance in perpetuity, including replacement
cost.
2. Acceptance of responsibility for maintenance from the time the BMPs are constructed until
responsibility for operation and maintenance is legally transferred. A warranty covering a period
following construction may also be required.
3. An outline of general maintenance requirements for the Stormwater BMPs you have selected.
4. Figures delineating and designating pervious and impervious areas, location, and type of
Stormwater BMP, and tables of pervious and impervious areas served by each facility. Geo-
locating the BMPs using a coordinate system of latitude and longitude is recommended to help
facilitate a future statewide database system.
5. A separate list and location of self-retaining areas or areas addressed by LID Principles that do
not require specialized O&M or inspections but will require typical landscape maintenance as
noted in Chapter 5, pages 85-86, in the WQMP Guidance. Include a brief description of typical
landscape maintenance for these areas.
Your local Co-Permittee will also require that you prepare and submit a detailed Stormwater BMP
Operation and Maintenance Plan that sets forth a maintenance schedule for each of the Stormwater BMPs
built on your site. An agreement assigning responsibility for maintenance and providing for inspections
and certification may also be required.
Details of these requirements and instructions for preparing a Stormwater BMP Operation and
Maintenance Plan are in Chapter 5 of the WQMP Guidance Document.
Maintenance Mechanism: Home Owner’s Association (HOA)
Will the proposed BMPs be maintained by a Home Owners’ Association (HOA) or Property Owners
Association (POA)?
Y N
Include your Operation and Maintenance Plan and Maintenance Mechanism in Appendix 9. Additionally,
include all pertinent forms of educational materials for those personnel that will be maintaining the
proposed BMPs within this Project-Specific WQMP in Appendix 10.
- 28 -
Appendix 1: Maps and Site Plans
Location Map, WQMP Site Plan and Receiving Waters Map
CORPORATIONWILSON MIKAMI····
- 29 -
Appendix 2: Construction Plans
Grading and Drainage Plans
Site Plan
LOT 1BBCCDDDDEEEEDDDDEEEEEEEEEEEEEEFFFFHHGGAAGGEEWILSON MIKAMICORPORATIONPREPARED BY:OWNER:SHEETOF1DESCRIPTIONDATEREVISIONAPPROVEDTENTATIVE TRACT NO. 3837818 ACRE PROPERTY - LAKESHORE DRIVESUBDIVIDER:CIVILExp.FOR CONDOMINIUM PURPOSESPROJECT LOCATIONVICINITY MAPSECTION "D-D"(TYPICAL STREET)SECTION "C-C"(ENTRY STREET)SECTION "B-B"(ENTRY STREET)SECTION "E-E"(TYP. MOTOR COURT)WATER & SEWERELSINORE VALLEY MUNICIPALWATER DISTRICT (EVMWD)31315 CHANEY STREETLAKE ELSINORE, CA 92530ELECTRICSOUTHERN CALIFORNIA EDISON32815 FREESIA WAYTEMECULA, CA 92592GASSOUTHERN CALIFORNIA GASCOMPANY25620 JEFFERSON AVE.MURRIETA, CA 92562TELEPHONE / CABLE TELEVISIONVERIZON / GTE - (800) 483-1000AT&T - (800) 310-2355TIME WARNER - (888) 354-9622STORMWATERCITY OF LAKE ELSINORE130 SOUTH MAIN ST.LAKE ELSINORE, CA 92530WASTE MANAGEMENTCR&R1706 GOETZ RD.PERRIS, CA 92570ASSESSOR PARCEL NUMBERS370-050-019370-050-020370-050-032PROPOSED PHASINGSINGLE PHASE CONSTRUCTIONA. OFFSITE IMPROVMENTSWITHIN LAKESHORE DRIVEB. ROUGH GRADINGC. ONSITE & OFFSITE UTILITIESD. PRECISE GRADINGF. BUILDING CONSTRUCTIONF. SITEWORK & LANDSCAPING’ ” ’ ” C.1ENGINEER'S NOTESPUBLIC PARK DEDICATIONDATE OF FILING: 10/18/22LAKE ELSINORE MISSION TRAIL. LLCLAKE ELSINORE MISSION TRAIL. LLCVICTORIAN LANE(TYPICAL STREET)SUBDIVISION LOT SUMMARYLOT 1:CONDOMINIUM DEVELOPMENT LOTEXISTING RIGHT OF WAYRIGHT OF WAY DEDICATIONSITE AREAPRIVATE STREET RECIPROCAL ACCESSUTILITY AND DRAINAGE EASEMENTSCOMMON AREA OPEN SPACENET SITE AREAAREA (SF)455,138-12,140467,278228,64753,924749,849AREA (AC)10.45-0.2810.735.251.2417.21A
COMMON OPEN SPACELOT A LOT ALOT D
LOT 1STREET "A"STREET "A"STREET "A"STREET "A"STREET "A"CORPORATIONWILSON MIKAMI03/04/2022 1st SUBMITTALJurisdiction #LAKE ELSINORE, CAWMC PROJECT NO. 10397.00LAKE ELSINORE MISSION TRAIL, LLC1020 Second St., Suite CEncinitas, CA 92024949.632.312218 ACRE PROPERTY - MISSION TRAILGRADING & DRAINAGEC.2EARTHWORK SUMMARYRAW CUT:24,000 CYRAW FILL: 21,690 CYSHRINKAGE (10%):(2,410) CYNET: 0 CYNOTE:EARTHWORK QUANTITIES DO NOT INCLUDEDREMEDIAL GRADING QUANTITIES ANDADJUSTMENTS FOR SUBSIDENCE.
LOT 1
CORPORATION
WILSON MIKAMI
03/04/2022 1st SUBMITTALJurisdiction #
LAKE ELSINORE, CA
WMC PROJECT NO. 10397.00
LAKE ELSINORE MISSION TRAIL, LLC
1020 Second St., Suite C
Encinitas, CA 92024
949.632.3122
18 ACRE PROPERTY - MISSION TRAIL SITE PLAN C.3CIVIL
Exp.
680'
SITE SUMMARYRESIDENTIAL PARKING SUMMARYGENERAL PLAN DESIGNATION:EXISTING ZONING DESIGNATION:
EXISTING LAND USE:
FOR CONDOMINIUM PURPOSES
EAST LAKE SPACIFIC PLAN MIXED USE OVERLAY
CORPORATIONWILSON MIKAMILAKE ELSINORE, CAWMC PROJECT NO. 10397.00LAKE ELSINORE MISSION TRAIL, LLC1020 Second St., Suite CEncinitas, CA 92024949.632.312218 ACRE PROPERTY - MISSION TRAILCONCEPT UTILITY PLANC.476
COMMON OPEN SPACELOT A LOT ALOT D
LOT 1STREET "A"STREET "A"STREET "A"STREET "A"STREET "A"COMMON OPEN SPACELOT A LOT ALOT D
LOT 1STREET "A"STREET "A"STREET "A"STREET "A"STREET "A"CORPORATIONWILSON MIKAMILAKE ELSINORE, CAWMC PROJECT NO. 10408.00LAKE ELSINORE MISSION TRAIL, LLC1020 Second St., Suite CEncinitas, CA 92024949.632.312218 ACRE PROPERTY - MISSION TRAILMAINTENANCE PLANC.5LEGENDMAINTENANCERESPONSIBILITY76
- 30 -
Appendix 3: Soils Information
Geotechnical Study and Other Infiltration Testing Data
- 31 -
Appendix 4: Historical Site Conditions (N/A)
Phase I Environmental Site Assessment or Other Information on Past Site Use
Not Applicable
- 32 -
Appendix 5: LID Infeasibility (N/A)
LID Technical Infeasibility Analysis
Not Applicable – LID Biortreatment BMPs will be used for the site and are feasible.
- 33 -
Appendix 6: BMP Design Details
BMP Sizing, Design Details and other Supporting Documentation
DMAAREAPERVIOUSAREA (SF)IMPERVIOUSAREA (SF)TOTALAREA (SF)TOTALAREA (AC)EFFECTIVEIMPERVIOUSFRACTION*DMARUNOFFFACTORDMA AREAS x RUNOFF FACTORQ(BMP) REQUIRED(CFS)FILTERRA REQUIRED SURFACE AREA (SF)*V(BMP)REQUIRED (CF)PROVIDEDSURFACEAREA (SF)PROPOSED BMPSIZINGPROVIDED FLOW RATE (CFS)A 43587 59493 103080 2.37 0.704 0.50 51301 0.236 58 3420 60 FTBSV0610 0.243B 18798 38059 56857 1.31 0.769 0.56 32075 0.147 36 2139 48 FTBSV0608 0.194C 63078 43281 106359 2.44 0.585 0.40 42291 0.194 48 2820 48 FTBSV0608 0.194D 20212 55863 76075 1.75 0.814 0.62 46860 0.215 53 3124 60 FTIBC0610‐C 0.243E 21211 55578 76789 1.76 0.807 0.61 46655 0.214 53 3082 60 FTIBC0610‐C 0.243F 34063 66648 100711 2.31 0.763 0.56 56115 0.258 64 3744 72 FTBSV0612 0.292G 16363 29528 45891 1.05 0.750 0.54 24952 0.115 28 1664 36 FTBSV0606 0.146H 19515 32117 51632 1.19 0.735 0.53 27272 0.125 31 1819 36 FTBSV0606 0.146I 24532 37706 62238 1.43 0.724 0.52 32185 0.148 37 2146 48 FTBSV0608 0.194J 13796 29689 43485 0.99 0.778 0.57 24964 0.115 28 1665 36 FTBSV0606 0.146K 6813 31332 38145 0.88 0.875 0.69 26505 0.122 30 1767 36 FTBSV0606 0.146Q(BMP)/PROPRIETARY BMP FILTRATION RATE OF 175 IN/HR=REQUIRED SURFACE AREA*BASED ON AN INFITRATION RATE OF 175 IN/HR
Date
I = 0.20 in/hr
DMA
Type/ID
DMA Area
(square feet)
Post‐Project
Surface Type
(use pull‐down menu)
Effective
Imperivous
Fraction, If
DMA
Runoff
Factor
DMA Areas x
Runoff Factor
Design
Rainfall
Intensity
(in/hr)
Design Flow
Rate (cfs)
Proposed
Flow Rate
(cfs)
A 103,080 Mixed Surface
Types 0.704 0.49768 51,301
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
103080 51301 0.20 0.236 0.243
Notes:
Drainage Management Area Tabulation
Insert additional rows if needed to accommodate all DMAs draining to the BMP
Design Rainfall Intensity
TotalDMAs BMP Identification
BMP NAME / ID DMA A - BIOFILTRATION FILTERRA MODEL FTBSV0610
Must match Name/ID used on BMP Design Calculation Sheet
Design Rainfall Depth
Designed by K MIKAMI Case No 2022-0005
Company Project Number/Name Tentative Tract Map 38378
Santa Ana Watershed - BMP Design Flow Rate, QBMP
(Rev. 10-2011)
Legend:Required Entries
Calculated Cells
(Note this worksheet shall only be used in conjunction with BMP designs from the LID BMP Design Handbook )
Company Name Wilson Mikami Corporation 9/13/2022
Date
I = 0.20 in/hr
DMA
Type/ID
DMA Area
(square feet)
Post‐Project
Surface Type
(use pull‐down menu)
Effective
Imperivous
Fraction, If
DMA
Runoff
Factor
DMA Areas x
Runoff Factor
Design
Rainfall
Intensity
(in/hr)
Design Flow
Rate (cfs)
Proposed
Flow Rate
(cfs)
B 56,857 Mixed Surface
Types 0.769 0.56413 32,075
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
56857 32075 0.20 0.147 0.194
Notes:
Drainage Management Area Tabulation
Insert additional rows if needed to accommodate all DMAs draining to the BMP
Design Rainfall Intensity
TotalDMAs BMP Identification
BMP NAME / ID DMA B - BIOFILTRATION FILTERRA MODEL FTBSV0608
Must match Name/ID used on BMP Design Calculation Sheet
Design Rainfall Depth
Designed by K MIKAMI Case No 2022-0005
Company Project Number/Name Tentative Tract Map 38378
Santa Ana Watershed - BMP Design Flow Rate, QBMP
(Rev. 10-2011)
Legend:Required Entries
Calculated Cells
(Note this worksheet shall only be used in conjunction with BMP designs from the LID BMP Design Handbook )
Company Name Wilson Mikami Corporation 9/13/2022
Date
I = 0.20 in/hr
DMA
Type/ID
DMA Area
(square feet)
Post‐Project
Surface Type
(use pull‐down menu)
Effective
Imperivous
Fraction, If
DMA
Runoff
Factor
DMA Areas x
Runoff Factor
Design
Rainfall
Intensity
(in/hr)
Design Flow
Rate (cfs)
Proposed
Flow Rate
(cfs)
C 106,359 Mixed Surface
Types 0.585 0.39763 42,291
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
106359 42291 0.20 0.194 0.195
Notes:
Drainage Management Area Tabulation
Insert additional rows if needed to accommodate all DMAs draining to the BMP
Design Rainfall Intensity
TotalDMAs BMP Identification
BMP NAME / ID DMA C - BIOFILTRATION FILTERRA MODEL FTBSV0608
Must match Name/ID used on BMP Design Calculation Sheet
Design Rainfall Depth
Designed by K MIKAMI Case No 2022-0005
Company Project Number/Name Tentative Tract Map 38378
Santa Ana Watershed - BMP Design Flow Rate, QBMP
(Rev. 10-2011)
Legend:Required Entries
Calculated Cells
(Note this worksheet shall only be used in conjunction with BMP designs from the LID BMP Design Handbook )
Company Name Wilson Mikami Corporation 9/13/2022
Date
I = 0.20 in/hr
DMA
Type/ID
DMA Area
(square feet)
Post‐Project
Surface Type
(use pull‐down menu)
Effective
Imperivous
Fraction, If
DMA
Runoff
Factor
DMA Areas x
Runoff Factor
Design
Rainfall
Intensity
(in/hr)
Design Flow
Rate (cfs)
Proposed
Flow Rate
(cfs)
D 76,075 Mixed Surface
Types 0.814 0.61598 46,860
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
76075 46860 0.20 0.215 0.243
Notes:
Drainage Management Area Tabulation
Insert additional rows if needed to accommodate all DMAs draining to the BMP
Design Rainfall Intensity
TotalDMAs BMP Identification
BMP NAME / ID DMA D - BIOFILTRATION FILTERRA MODEL FTIBCB0610-C
Must match Name/ID used on BMP Design Calculation Sheet
Design Rainfall Depth
Designed by K MIKAMI Case No 2022-0005
Company Project Number/Name Tentative Tract Map 38378
Santa Ana Watershed - BMP Design Flow Rate, QBMP
(Rev. 10-2011)
Legend:Required Entries
Calculated Cells
(Note this worksheet shall only be used in conjunction with BMP designs from the LID BMP Design Handbook )
Company Name Wilson Mikami Corporation 9/13/2022
Date
I = 0.20 in/hr
DMA
Type/ID
DMA Area
(square feet)
Post‐Project
Surface Type
(use pull‐down menu)
Effective
Imperivous
Fraction, If
DMA
Runoff
Factor
DMA Areas x
Runoff Factor
Design
Rainfall
Intensity
(in/hr)
Design Flow
Rate (cfs)
Proposed
Flow Rate
(cfs)
E 76,789 Mixed Surface
Types 0.807 0.60757 46,655
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
76789 46655 0.20 0.214 0.243
Notes:
Drainage Management Area Tabulation
Insert additional rows if needed to accommodate all DMAs draining to the BMP
Design Rainfall Intensity
TotalDMAs BMP Identification
BMP NAME / ID DMA E - BIOFILTRATION FILTERRA MODEL FTIBCB0610-C
Must match Name/ID used on BMP Design Calculation Sheet
Design Rainfall Depth
Designed by K MIKAMI Case No 2022-0005
Company Project Number/Name Tentative Tract Map 38378
Santa Ana Watershed - BMP Design Flow Rate, QBMP
(Rev. 10-2011)
Legend:Required Entries
Calculated Cells
(Note this worksheet shall only be used in conjunction with BMP designs from the LID BMP Design Handbook )
Company Name Wilson Mikami Corporation 9/13/2022
Date
I = 0.20 in/hr
DMA
Type/ID
DMA Area
(square feet)
Post‐Project
Surface Type
(use pull‐down menu)
Effective
Imperivous
Fraction, If
DMA
Runoff
Factor
DMA Areas x
Runoff Factor
Design
Rainfall
Intensity
(in/hr)
Design Flow
Rate (cfs)
Proposed
Flow Rate
(cfs)
F 100,711 Mixed Surface
Types 0.763 0.55759 56,155
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
100711 56155 0.20 0.258 0.292
Notes:
Drainage Management Area Tabulation
Insert additional rows if needed to accommodate all DMAs draining to the BMP
Design Rainfall Intensity
TotalDMAs BMP Identification
BMP NAME / ID DMA F - BIOFILTRATION FILTERRA MODEL FTBSV0612
Must match Name/ID used on BMP Design Calculation Sheet
Design Rainfall Depth
Designed by K MIKAMI Case No 2022-0005
Company Project Number/Name Tentative Tract Map 38378
Santa Ana Watershed - BMP Design Flow Rate, QBMP
(Rev. 10-2011)
Legend:Required Entries
Calculated Cells
(Note this worksheet shall only be used in conjunction with BMP designs from the LID BMP Design Handbook )
Company Name Wilson Mikami Corporation 9/13/2022
Date
I = 0.20 in/hr
DMA
Type/ID
DMA Area
(square feet)
Post‐Project
Surface Type
(use pull‐down menu)
Effective
Imperivous
Fraction, If
DMA
Runoff
Factor
DMA Areas x
Runoff Factor
Design
Rainfall
Intensity
(in/hr)
Design Flow
Rate (cfs)
Proposed
Flow Rate
(cfs)
G 45,891 Mixed Surface
Types 0.750 0.54372 24,952
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
45891 24952 0.20 0.115 0.146
Notes:
Drainage Management Area Tabulation
Insert additional rows if needed to accommodate all DMAs draining to the BMP
Design Rainfall Intensity
TotalDMAs BMP Identification
BMP NAME / ID DMA G - BIOFILTRATION FILTERRA MODEL FTBSV0606
Must match Name/ID used on BMP Design Calculation Sheet
Design Rainfall Depth
Designed by K MIKAMI Case No 2022-0005
Company Project Number/Name Tentative Tract Map 38378
Santa Ana Watershed - BMP Design Flow Rate, QBMP
(Rev. 10-2011)
Legend:Required Entries
Calculated Cells
(Note this worksheet shall only be used in conjunction with BMP designs from the LID BMP Design Handbook )
Company Name Wilson Mikami Corporation 9/13/2022
Date
I = 0.20 in/hr
DMA
Type/ID
DMA Area
(square feet)
Post‐Project
Surface Type
(use pull‐down menu)
Effective
Imperivous
Fraction, If
DMA
Runoff
Factor
DMA Areas x
Runoff Factor
Design
Rainfall
Intensity
(in/hr)
Design Flow
Rate (cfs)
Proposed
Flow Rate
(cfs)
H 51,632 Mixed Surface
Types 0.735 0.5282 27,272
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
51632 27272 0.20 0.125 0.146
Notes:
Drainage Management Area Tabulation
Insert additional rows if needed to accommodate all DMAs draining to the BMP
Design Rainfall Intensity
TotalDMAs BMP Identification
BMP NAME / ID DMA H - BIOFILTRATION FILTERRA MODEL FTBSV0606
Must match Name/ID used on BMP Design Calculation Sheet
Design Rainfall Depth
Designed by K MIKAMI Case No 2022-0005
Company Project Number/Name Tentative Tract Map 38378
Santa Ana Watershed - BMP Design Flow Rate, QBMP
(Rev. 10-2011)
Legend:Required Entries
Calculated Cells
(Note this worksheet shall only be used in conjunction with BMP designs from the LID BMP Design Handbook )
Company Name Wilson Mikami Corporation 9/13/2022
Date
I = 0.20 in/hr
DMA
Type/ID
DMA Area
(square feet)
Post‐Project
Surface Type
(use pull‐down menu)
Effective
Imperivous
Fraction, If
DMA
Runoff
Factor
DMA Areas x
Runoff Factor
Design
Rainfall
Intensity
(in/hr)
Design Flow
Rate (cfs)
Proposed
Flow Rate
(cfs)
I 62,238 Mixed Surface
Types 0.724 0.51713 32,185
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
62238 32185 0.20 0.148 0.194
Notes:
Drainage Management Area Tabulation
Insert additional rows if needed to accommodate all DMAs draining to the BMP
Design Rainfall Intensity
TotalDMAs BMP Identification
BMP NAME / ID DMA I - BIOFILTRATION FILTERRA MODEL FTBSV0608
Must match Name/ID used on BMP Design Calculation Sheet
Design Rainfall Depth
Designed by K MIKAMI Case No 2022-0005
Company Project Number/Name Tentative Tract Map 38378
Santa Ana Watershed - BMP Design Flow Rate, QBMP
(Rev. 10-2011)
Legend:Required Entries
Calculated Cells
(Note this worksheet shall only be used in conjunction with BMP designs from the LID BMP Design Handbook )
Company Name Wilson Mikami Corporation 9/13/2022
Date
I = 0.20 in/hr
DMA
Type/ID
DMA Area
(square feet)
Post‐Project
Surface Type
(use pull‐down menu)
Effective
Imperivous
Fraction, If
DMA
Runoff
Factor
DMA Areas x
Runoff Factor
Design
Rainfall
Intensity
(in/hr)
Design Flow
Rate (cfs)
Proposed
Flow Rate
(cfs)
J 43,485 Mixed Surface
Types 0.778 0.57409 24,964
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
43485 24964 0.20 0.115 0.146
Notes:
Drainage Management Area Tabulation
Insert additional rows if needed to accommodate all DMAs draining to the BMP
Design Rainfall Intensity
TotalDMAs BMP Identification
BMP NAME / ID DMA J - BIOFILTRATION FILTERRA MODEL FTBSV0606
Must match Name/ID used on BMP Design Calculation Sheet
Design Rainfall Depth
Designed by K MIKAMI Case No 2022-0005
Company Project Number/Name Tentative Tract Map 38378
Santa Ana Watershed - BMP Design Flow Rate, QBMP
(Rev. 10-2011)
Legend:Required Entries
Calculated Cells
(Note this worksheet shall only be used in conjunction with BMP designs from the LID BMP Design Handbook )
Company Name Wilson Mikami Corporation 9/13/2022
Date
I = 0.20 in/hr
DMA
Type/ID
DMA Area
(square feet)
Post‐Project
Surface Type
(use pull‐down menu)
Effective
Imperivous
Fraction, If
DMA
Runoff
Factor
DMA Areas x
Runoff Factor
Design
Rainfall
Intensity
(in/hr)
Design Flow
Rate (cfs)
Proposed
Flow Rate
(cfs)
K 38,145 Mixed Surface
Types 0.875 0.69486 26,505
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
38145 26505 0.20 0.122 0.146
Notes:
Drainage Management Area Tabulation
Insert additional rows if needed to accommodate all DMAs draining to the BMP
Design Rainfall Intensity
TotalDMAs BMP Identification
BMP NAME / ID DMA K - BIOFILTRATION FILTERRA MODEL FTBSV0606
Must match Name/ID used on BMP Design Calculation Sheet
Design Rainfall Depth
Designed by K MIKAMI Case No 2022-0005
Company Project Number/Name Tentative Tract Map 38378
Santa Ana Watershed - BMP Design Flow Rate, QBMP
(Rev. 10-2011)
Legend:Required Entries
Calculated Cells
(Note this worksheet shall only be used in conjunction with BMP designs from the LID BMP Design Handbook )
Company Name Wilson Mikami Corporation 9/13/2022
- 34 -
Appendix 7: Hydromodification
Supporting Detail Relating to Hydrologic Conditions of Concern
Sedco Master Plan of Drainage Line D Storm Drain Plans Drawings No. 3-119 Depicting
Discharge point for Storm Drain Line from Project Site with direct discharge into Lake Elsinore
WILSON MIKAMI
CORPORATION
PARK
WILSON MIKAMI
CORPORATION
- 35 -
Appendix 8: Source Control
Pollutant Sources/Source Control Checklist
- 36 -
Appendix 9: O&M
Operation and Maintenance Plan and Documentation of Finance, Maintenance and Recording Mechanisms
- 38 -
Appendix 10: Educational Materials
BMP Fact Sheets, Maintenance Guidelines and Other End-User BMP Information
1
SECTION (_____)
Filterra®Bioscape Configuration
Bioretention System Standard Specification
1.0 GENERAL
1.1 This item shall govern the furnishing and installation of the Filterra® Bioscape Bioretention
System by Contech Engineered Solutions LLC, complete and operable as shown and as
specified herein, in accordance with the requirements of the plans and contract documents.
1.2 Contractor shall furnish all labor, materials, equipment and incidentals necessary to install
and/or prepare the site for placement of the bioretention system, appurtenances and
incidentals in accordance with the Drawings and as specified herein.
1.3 Bioretention system shall utilize the physical, chemical and biological mechanisms of an
engineered biofiltration media, plant and microbe complex to remove pollutants typically
found in urban stormwater runoff. The treatment system shall be a fully equipped, pre-
constructed, drop-in-place unit designed for applications in the urban landscape to treat
contaminated runoff from impervious surfaces.
1.4 Bioretention plants shall be incorporated into the system with plant material extending into
the treatment zone of the engineered media at time of Activation.
1.5 The bioretention system shall be of a type that has been installed and in use for a minimum
of five (5) consecutive years preceding the date of installation of the system. The
Manufacturer shall have been, during the same consecutive five (5) year period, engaged in
the engineering design and production of systems deployed for the treatment of storm water
runoff and which have a history of successful production, acceptable to the Engineer of
Record and/or the approving Jurisdiction. The Manufacturer of the Filterra Bioscape
Bioretention System shall be, without exception:
Contech Engineered Solutions LLC
9025 Centre Pointe Drive
West Chester, OH, 45069
Tel: 1 800 338 1122
1.6 Applicable provisions of any Division shall govern work in this section.
1.7 Manufacturer or authorized supplier to submit shop drawings for bioretention system with
engineered biofiltration media and accessory equipment. Drawings shall include principal
dimensions, engineered biofiltration media placement, and location of piping.
1.7.1 Manufacturer or authorized supplier shall submit site preparation and installation
instructions to the contractor.
1.7.2 Manufacturer or authorized supplier shall submit Operations and Maintenance
Manual to the contractor.
2
1.7.3 Before installation of the bioretention system, Contractor shall obtain the
written approval of the Engineer of Record for the system drawings.
1.8 No product substitutions shall be accepted unless submitted 10 days prior to project bid date,
or as directed by the Engineer of Record. Submissions for substitutions require review and
approval by the Engineer of Record, for hydraulic performance, impact to project designs,
equivalent treatment performance, and any required project plan and report
(hydrology/hydraulic, water quality, stormwater pollution) modifications that would be
required by the approving jurisdictions/agencies. Contractor to coordinate with the Engineer
of Record any applicable modifications to the project estimates of cost, bonding amount
determinations, plan check fees for changes to approved documents, and/or any other
regulatory requirements resulting from the product substitution.
2.0 MATERIALS
2.1 All system components including engineered biofiltration media, underdrain stone, PVC
underdrain piping, and mulch must be included as part of the bioretention system and shall
be provided by Contech Engineered Solutions LLC.
2.1.1 Engineered biofiltration media shall consist of both organic and inorganic
components. Stormwater shall be directed to flow vertically through the media
profile, saturating the full media profile without downstream flow control.
2.1.2 Underdrain stone shall be of size and shape to provide adequate bridging
between the media and stone for the prevention of migration of fine particles.
Underdrain stone must also be able to convey the design flow rate of the system
without restriction and be approved for use in the Filterra Bioscape Bioretention
System by Contech Engineered Solutions LLC.
2.1.3 PVC Underdrain Piping shall be SDR35 with perforation pattern designed to
convey system design flow rate without restriction.
2.1.4 Mulch shall be double shredded wood or bark mulch approved for use with the
Filterra Bioscape Bioretention System by Contech Engineered Solutions LLC.
2.2 Vegetation shall be provided by the contractor and comply with the type and size required by
the site plans and shall be alive and free of obvious signs of disease.
2.3 Filterra Bioscape containment basin or structure shall be provided by the contractor in
accordance with the Engineer of Record site plans.
3.0 PERFORMANCE
3.1 Treatment Capabilities shall be verified via third-party report following either TAPE or TARP
protocols.
3.1.1 Engineered biofiltration media minimum treatment flow rate shall be 140”/hr.
The system shall be designed to ensure that high flow events shall bypass the
engineered biofiltration media preventing erosion and resuspension of
3
pollutants.
3.1.2 The system shall remove a minimum of 85% Total Suspended Solids (TSS).
3.1.3 The system shall remove a minimum of 62% Total Phosphorus (TP).
3.1.4 The system shall remove a minimum of 34% Total Nitrogen (TN).
3.2 Quality Assurance and Quality Control procedures shall be followed for all batches of
engineered biofiltration media produced. Engineered biofiltration media shall be certified by
the Manufacturer for performance and composition.
3.2.1 Media particle size distribution and composition shall be verified as per relevant
ASTM Standards.
3.2.2 Media pollutant removal performance shall be verified as per relevant ASTM
Standards as well as a minimum of one scientific method approved by the USEPA.
3.2.3 Media hydraulic performance shall be verified as per relevant ASTM Standards.
3.2.4 Media fertility shall be verified as per a minimum of one published scientific
method.
3.3 The Manufacturer shall ensure through third party full scale field testing of installed units that
the design flow rate of the system is not reduced over time. Studies shall be performed on a
minimum of 10 systems of various ages, maintenance frequencies, and land uses. At least
80% of the tested systems shall have been installed 2.5 or more years. At least 50% of the
systems shall have previous maintenance intervals greater than 2 times the manufacturer’s
recommendation.
4.0 EXECUTION
4.1 Contractor to prepare site for installation of the Filterra Bioscape Bioretention system as per
the “Filterra Bioscape Activation Guide for Contractors” provided by the Manufacturer.
4.1.1 Excavation of basin or installation of Cast-in-Place vault for the placement of
system components shall be completed by contractor
4.1.2 Inlet and outlet pipes shall be provided to the edge of the extents of the
Engineered Media for connection of underdrain during system installation by
contractor.
4.1.3 All bypass structures, piping, or other mechanisms should be installed and in
place by contractor prior to Filterra Bioscape System Activation.
4.2 The bioretention system shall not be placed in operation (activated) until the project site is
clean and stabilized (construction erosion control measures no longer required). The project
site includes any surface that contributes storm drainage to the system. All impermeable
4
surfaces shall be clean and free of dirt and debris. All catch basins, manholes and pipes shall
be free of dirt and sediment.
4.3 Activation consists of the placement of all system components identified in Section 2.1.
Activation must be provided by the contractor under supervision by Contech Engineered
Solutions, LLC, or a Contech certified 3rd Party Activation provider.
4.4 To ensure long term performance of the bioretention system, continuing annual
maintenance programs should be performed or purchased by the owner per the latest
Filterra Bioscape Bioretention System Operation and Maintenance manual.
SECTION A-ASLOTTED THROAT INLETSDR 35 OUTLET COUPLING CASTINTO PRECAST VAULT WALL(OUTLET PIPE LOCATION MAY VARY)ENERGY DISSIPATIONROCKSCURB AND GUTTER(NOT BY CONTECH)SEE FILTERRA BIOSCAPE VAULTCURB INLET DETAIL SHEET4"Ø - 6"Ø UNDERDRAINFLOWKIT (VARIES BY SIZE)PROVIDED BY CONTECH21" FILTERRA MEDIA, TYP.PROVIDED BY CONTECH6" UNDERDRAINSTONE LAYER, TYP.PROVIDED BY CONTECH3" MULCH LAYER, TYP.PROVIDED BY CONTECHSTREETPLANT PROVIDED BY CONTECH2"Ø IRRIGATION PORT,TYP. 3 PLACESGALVANIZED ANGLE NOSINGVAULT LENGTHPLAN VIEWSHORT SIDE INLETAA3'-9"
3'-5"4' CURB INLET (MAX)REFER TO OTHERDETAILS FORALTERNATE INLETSVAULT WIDTH*1'-0"*8"*1'-4"
*4"INLET SHAPING(NOT BY CONTECH)CURB(NOT BY CONTECH)UNDERDRAIN FLOWKIT*1'-0"SIDEWALK ELEVATIONIF APPLICABLE1"
3'-5" (3.42')
INV TO TOP
*8"
*2"
8"
MIN
1"
*1'-0"
2'-5" (2.42')
INV TO TOP
1"
3'-5" (3.42')
INV TO TOP
1"
1'-0" TYP
(1'-5" MAX)
1' MIN
BASIN DEPTH
ENERGY DISSIPATION ROCKSAT EACH INLET6"Ø MAX SDR 35INLET COUPLER(CAST-IN)1" TYP
2'-6"ENERGY DISSIPATION ROCKSAT EACH INLETCURB AND GUTTER(NOT BY CONTECH)SEE FILTERRA BIOSCAPE VAULT CURBINLET DETAIL SHEET18" GI INLET (CAST-IN)STREETENERGY DISSIPATION ROCKSPLANT PROVIDED BY CONTECHPLANT PROVIDED BY CONTECHPLANT PROVIDED BY CONTECHSECTION A-AGREEN INFRASTRUCTURE INLET - TOP FLUSH WITH TOP OFCURB, NOT INTENDED FOR SIDEWALK APPLICATIONSSECTION A-ABASIN - CURB INLET OR PIPE INLETS OPTIONALSECTION A-APIPE INLETFTBSV CONFIGURATION(OPTIONS: BASIN "-B", GREEN INFR. INLET "-I", PIPE INLET "-P", SLOTTED THROAT INLET "-T")MEDIABAY SIZEVAULT SIZE(L x W)LONG SIDE INLETDESIGNATIONSHORT SIDE INLETDESIGNATIONAVAILABILITYOUTLETPIPE DIAMIN. NO. OF INLETPIPES (-P ONLY)4 x 44 x 4FTBSV0404FTBSV0404ALL4" SDR 3516 x 46 x 4FTBSV0604FTBSV0406N/A CA4" SDR 3516.5 x 46.5 x 4FTBSV06504FTBSV04065CA ONLY4" SDR 3517.83 x 4.57.83 x 4.5FTBSV078045FTBSV045078DE,MD,NJ,PA,VA.WVONLY4" SDR 3518 x 48 x 4FTBSV0804FTBSV0408N/ADE,MD,NJ,PA,VA,WV4" SDR 3516 x 66 x 6FTBSV0606FTBSV0606ALL4" SDR 3518 x 68 x 6FTBSV0806FTBSV0608ALL4" SDR 35110 x 610 x 6FTBSV1006FTBSV0610ALL6" SDR 35212 x 612 x 6FTBSV1206FTBSV0612ALL6" SDR 35213 x 713 x 7FTBSV1307FTBSV0713ALL6" SDR 35214 x 814 x 8FTBSV1408†N/AALL6" SDR 35316 x 816 x 8FTBSV1608†N/AN/A OR,WA6" SDR 35315 x 915 x 9FTBSV1509†N/AOR,WA ONLY6" SDR 35318 x 818 x 8FTBSV1808†N/ACALL CONTECH6" SDR 35320 x 820 x 8FTBSV2008†N/ACALL CONTECH6" SDR 35422 x 822 x 8FTBSV2208†N/ACALL CONTECH6" SDR 354†UTILIZES (2) CURB OPENINGS WITH MIN 1' SPACINGN/A = NOT AVAILABLEI:\STORMWATER\COMMOPS\54 FILTERRA\40 STANDARD DRAWINGS\FTBSV - FILTERRA BIOSCAPE VAULT OFFLINE\LAYOUT DETAILS\DWG\FTBSV - FILTERRA BIOSCAPE VAULT OFFLINE CONFIG DTL.DWG 12/22/2020 2:50 PM
FILTERRA BIOSCAPE VAULT STANDARD OFFLINE (FTBSV)CONFIGURATION DETAILThe design and information shown on this drawing is provided as a service to the project owner, engineer and contractor by Contech Engineered Solutions LLC or one of its affiliated companies ("Contech"). Neither this drawing, nor any part thereof, may be used, reproduced or modified in any mannerwithout the prior written consent of Contech. Failure to comply is done at the user's own risk and Contech expressly disclaims any liability or responsibility for such use. If discrepancies between the supplied information upon which the drawing is based and actual field conditions are encountered as sitework progresses, these discrepancies must be reported to Contech immediately for re-evaluation of the design. Contech accepts no liability for designs based on missing, incomplete or inaccurate information supplied by others.INTERNAL PIPECONFIGURATION MAY VARYDEPENDING ON VAULT SIZE.DIMENSIONS PRECEDED BY " * " ARE CRITICAL AND MAY NOT BE MODIFIED WITHOUT CONSULTING CONTECH5670 Greenwood Plaza Blvd., Suite 530, Greenwood Village, CO 80111800-526-3999 303-796-2233 303-796-2239 FAXwww.ContechES.comTHIS PRODUCT MAY BE PROTECTED BY ONE OR MORE OFTHE FOLLOWING U.S. PATENTS: 6,277,274; 6,569,321;7,625,485; 7,425,261; 7,833,412; RELATED FOREIGN PATENTS.®AS WITH ALL OPEN TOP BIORETENTION SYSTEMS, FILTERRA BIOSCAPE IS OPEN TO THE ATMOSPHERE WITH A MEDIASURFACE RECESSED BELOW FINISHED GRADE. CONTRACTOR OR OWNER IS RESPONSIBLE FOR PROVIDING ANYREQUIRED SAFETY MEASURES AROUND SYSTEM PERIMETER. TO MAINTAIN AESTHETICS, REMOVAL OF HEAVYSTORMWATER DEBRIS MAY BE NECESSARY BETWEEN REGULAR FILTERRA SYSTEM MAINTENANCE EVENTS.
FTBSV - IGREEN INFRASTRUCTURE INLET - TOP FLUSHWITH TOP OF CURB, NOT INTENDED FORSIDEWALK APPLICATIONSFTBSVSLOTTED THROAT INLET - TOP EXTENDS 4"ABOVE CURB FOR ADJACENT SIDEWALKSFTBSV - BBASIN - CURB INLET OR PIPE INLET OPTIONALFTBSV - PPIPE INLETALTERNATE PIPEINLET OPENINGI:\COMMON\CAD\TREATMENT\54 FILTERRA\40 STANDARD DRAWINGS\FTBSV - BIOSCAPE VAULT OFFLINE\LAYOUT DETAILS\DWG\IN PROCESS\FTBSV - FILTERRA BIOSCAPE VAULT OFFLINE CONFIG DTL.DWG 11/3/2020 9:50 AM
FILTERRA BIOSCAPE VAULT STANDARD OFFLINE (FTBSV)SITE LAYOUT DETAILThe design and information shown on this drawing is provided as a service to the project owner, engineer and contractor by Contech Engineered Solutions LLC or one of its affiliated companies ("Contech"). Neither this drawing, nor any part thereof, may be used, reproduced or modified in any mannerwithout the prior written consent of Contech. Failure to comply is done at the user's own risk and Contech expressly disclaims any liability or responsibility for such use. If discrepancies between the supplied information upon which the drawing is based and actual field conditions are encountered as sitework progresses, these discrepancies must be reported to Contech immediately for re-evaluation of the design. Contech accepts no liability for designs based on missing, incomplete or inaccurate information supplied by others.5670 Greenwood Plaza Blvd., Suite 530, Greenwood Village, CO 80111800-526-3999 303-796-2233 303-796-2239 FAXwww.ContechES.comTHIS PRODUCT MAY BE PROTECTED BY ONE OR MORE OFTHE FOLLOWING U.S. PATENTS: 6,277,274; 6,569,321;7,625,485; 7,425,261; 7,833,412; RELATED FOREIGN PATENTS.®
INLET SHAPING(NOT BY CONTECH)CURB(NOT BY CONTECH)AAVAULT WIDTHPLAN VIEWSECTION A-A(SLOTTED THROAT INLET - TOP EXTENDS 4"ABOVE CURB FOR ADJACENT SIDEWALKS)VAULT LENGTH6"Ø - 10"Ø SDR 35OUTLET COUPLINGCAST INTOPRECAST VAULTWALL (OUTLET PIPELOCATION MAYVARY)ENERGY DISSIPATIONROCKSCURB AND GUTTER (NOT BY CONTECH)SEE FILTERRA BIOSCAPE VAULT CURBINLET DETAIL SHEET4"Ø - 6"Ø UNDERDRAINFLOWKIT (VARIES BY SIZE)PROVIDED BY CONTECH21" FILTERRA MEDIA, TYP.PROVIDED BY CONTECH6" UNDERDRAINSTONE LAYER, TYP.PROVIDED BY CONTECH3" MULCH LAYER, TYP.PROVIDED BY CONTECH6"Ø - 10"Ø BYPASSINLET GRATE4' CURB INLET (MAX.)REFER TO OTHER DETAILS FORALTERNATE INLET OPTIONS4'-2"STREETPLANT PROVIDED BY CONTECH2"Ø IRRIGATION PORT,TYP. 3 PLACESGALVANIZED ANGLE NOSING*4"
3'-10"
*1'-0"*1'-5"*1'-9"SIDEWALK/CURB ELEVATION(IF APPLICABLE)1"
3'-10" (3.83')
INV TO TOP
*8"
*2"
8"
MIN.
1"
*1'-5"
2'-5" (2.42')
INV. TO TOP
1"1"
*1'-5"1'-5" MIN.
BASIN DEPTH
ENERGY DISSIPATION ROCKSAT EACH INLET6"Ø MAX. SDR 35INLET COUPLER(CAST-IN)1" TYP.
2'-6" (2.5')ENERGY DISSIPATIONROCKS AT ALL INLETS ORPERIMETER, AS APPLICABLECURB AND GUTTER(NOT BY CONTECH)SEE FILTERRA BIOSCAPE VAULTCURB INLET DETAIL SHEET18" WIDE GI INLET (CAST-IN)STREETENERGY DISSIPATION ROCKSPLANT PROVIDED BY CONTECHPLANT PROVIDED BY CONTECHPLANT PROVIDED BY CONTECHSECTION A-AGREEN INFRASTRUCTURE INLET - TOP FLUSH WITH TOP OFCURB, NOT INTENDED FOR SIDEWALK APPLICATIONSSECTION A-ABASIN - CURB INLET OR PIPE INLETS OPTIONALSECTION A-APIPE INLETFTBSVIB CONFIGURATION(OPTIONS: BASIN "-B", GREEN INFRASTRUCTURE INLET "-I", PIPE INLET "-P", SLOTTED THROAT INLET "-T")MEDIABAY SIZEVAULTSIZE(L x W)LONG SIDEINLETDESIGNATIONSHORT SIDEINLETDESIGNATIONAVAILABILITYMAX.OUTLET /BYPASSPIPE DIA.MAX.BYPASSFLOW(CFS)UNDERDRAINPIPE DIA.(PERF)MIN. NO.OF INLETPIPES (-PONLY)4 x 44 x 4FTBSVIB0404FTBSVIB0404ALL6" SDR 351.424" SDR 3516 x 46 x 4FTBSVIB0604FTBSVIB0406N/A CA8" SDR 351.894" SDR 3516.5 x 46.5 x 4FTBSVIB06504FTBSVIB04065CA ONLY8" SDR 351.894" SDR 3517.83 x 4.57.83 x 4.5FTBSVIB078045FTBSVIB045078DE,MD,NJ,PA,VA.WVONLY8" SDR 351.894" SDR 3518 x 48 x 4FTBSVIB0804FTBSVIB0408N/ADE,MD,NJ,PA,VA,WV8" SDR 351.894" SDR 3516 x 66 x 6FTBSVIB0606FTBSVIB0606ALL8" SDR 351.894" SDR 3518 x 68 x 6FTBSVIB0806FTBSVIB0608ALL10" SDR 352.374" SDR 35110 x 610 x 6FTBSVIB1006FTBSVIB0610ALL10" SDR 352.376" SDR 35212 x 612 x 6FTBSVIB1206FTBSVIB0612ALL10" SDR 352.376" SDR 35213 x 713 x 7FTBSVIB1307FTBSVIB0713ALL10" SDR 352.376" SDR 35214 x 814 x 8FTBSVIB1408†N/AALL10" SDR 352.376" SDR 35316 x 816 x 8FTBSVIB1608†N/AN/A OR, WA10" SDR 352.376" SDR 35315 x 915 x 9FTBSVIB1509†N/AOR, WA ONLY10" SDR 352.376" SDR 35318 x 818 x 8FTBSVIB1808†N/ACALL CONTECH10" SDR 352.376" SDR 35320 x 820 x 8FTBSVIB2008†N/ACALL CONTECH10" SDR 352.376" SDR 35422 x 822 x 8FTBSVIB2208†N/ACALL CONTECH10" SDR 352.376" SDR 354†UTILIZES (2) CURB OPENINGS WITH MIN 1' SPACINGN/A = NOT AVAILABLEI:\STORMWATER\COMMOPS\54 FILTERRA\40 STANDARD DRAWINGS\FTBSVIB - FILTERRA BIOSCAPE VAULT INTERNAL BYPASS\LAYOUT DETAILS\DWG\FTBSVIB - FILTERRA BIOSCAPE VAULT INTERNAL BYPASS CONFIG DTL UPD.DWG 12/22/2020 2:45PM
FILTERRA BIOSCAPE VAULT INTERNAL BYPASS(FTBSVIB)CONFIGURATION DETAILThe design and information shown on this drawing is provided as a service to the project owner, engineer and contractor by Contech Engineered Solutions LLC or one of its affiliated companies ("Contech"). Neither this drawing, nor any part thereof, may be used, reproduced or modified in any mannerwithout the prior written consent of Contech. Failure to comply is done at the user's own risk and Contech expressly disclaims any liability or responsibility for such use. If discrepancies between the supplied information upon which the drawing is based and actual field conditions are encountered as sitework progresses, these discrepancies must be reported to Contech immediately for re-evaluation of the design. Contech accepts no liability for designs based on missing, incomplete or inaccurate information supplied by others.INTERNAL PIPE CONFIGURATION MAYVARY DEPENDING ON VAULT SIZE.800-338-1122 513-645-7000 513-645-7993 FAX9025 Centre Pointe Dr., Suite 400, West Chester, OH 45069www.ContechES.comTHIS PRODUCT MAY BE PROTECTED BY ONE OR MORE OFTHE FOLLOWING U.S. PATENTS: 6,277,274; 6,569,321;7,625,485; 7,425,261; 7,833,412; RELATED FOREIGN PATENTS.®DIMENSIONS PRECEDED BY " * " ARE CRITICAL AND MAY NOT BE MODIFIED WITHOUT CONSULTING CONTECHAS WITH ALL OPEN TOP BIORETENTION SYSTEMS, FILTERRA BIOSCAPE IS OPEN TO THEATMOSPHERE WITH A MEDIA SURFACE RECESSED BELOW FINISHED GRADE. CONTRACTOR OROWNER IS RESPONSIBLE FOR PROVIDING ANY REQUIRED SAFETY MEASURES AROUND SYSTEMPERIMETER. TO MAINTAIN AESTHETICS, REMOVAL OF HEAVY STORMWATER DEBRIS MAY BENECESSARY BETWEEN REGULAR FILTERRA SYSTEM MAINTENANCE EVENTS.
FTBSVIB - IGREEN INFRASTRUCTURE INLET - TOPFLUSH WITH TOP OF CURB, NOT INTENDEDFOR SIDEWALK APPLICATIONSFTBSVIBSLOTTED THROAT INLET - TOP EXTENDS 4"ABOVE CURB FOR ADJACENT SIDEWALKSFTBSVIB - BBASIN - CURB INLET OR PIPE INLET OPTIONALFTBSVIB - PPIPE INLETALTERNATE PIPEINLET OPENINGI:\COMMON\CAD\TREATMENT\54 FILTERRA\40 STANDARD DRAWINGS\IN PROCESS FTBSVIB - BIOSCAPE VAULT INTERNAL BYPASS\LAYOUT DETAILS\DWG\FTBSVIB - FILTERRA BIOSCAPE VAULT INTERNAL BYPASS CONFIG DTL.DWG 11/3/2020 10:41 AM
FILTERRA BIOSCAPE VAULT INTERNAL BYPASS(FTBSVIB)SITE LAYOUTSThe design and information shown on this drawing is provided as a service to the project owner, engineer and contractor by Contech Engineered Solutions LLC or one of its affiliated companies ("Contech"). Neither this drawing, nor any part thereof, may be used, reproduced or modified in any mannerwithout the prior written consent of Contech. Failure to comply is done at the user's own risk and Contech expressly disclaims any liability or responsibility for such use. If discrepancies between the supplied information upon which the drawing is based and actual field conditions are encountered as sitework progresses, these discrepancies must be reported to Contech immediately for re-evaluation of the design. Contech accepts no liability for designs based on missing, incomplete or inaccurate information supplied by others.800-338-1122 513-645-7000 513-645-7993 FAX9025 Centre Pointe Dr., Suite 400, West Chester, OH 45069www.ContechES.comTHIS PRODUCT MAY BE PROTECTED BY ONE OR MORE OFTHE FOLLOWING U.S. PATENTS: 6,277,274; 6,569,321;7,625,485; 7,425,261; 7,833,412; RELATED FOREIGN PATENTS.®
Filterra Bioscape Plant List - Southern CaliforniaCommon Name1,2,8Latin Name Plant Type SunHardiness RangeMature Height5Mature Spread5Sizing7Availability9NativityAcacia, SweetAcacia smalliiDeciduous Full Sun 9A - 11 15' - 25' 15' - 25' Tree SoCAW-US, Central AmericaBeautyberryCallicarpa AmericanaDeciduous Partial Shade to Full Sun 7A - 10B 4' - 8' 6' - 7' LMA, NW, SE, SC, NoCA, SoCASE-US, S-USBlue Palo VerdeParkinsonia floridumDeciduous Full Sun 8A - 11 10' - 20' 15' XL NW, SC, NoCA, SoCA US-CACeanothus, Big-podCeanothus megacarpusDeciduous Partial Shade to Full Sun 7A - 10B 4' - 8' 6' - 7' L SoCA US-CAChokeberry, BlackAronia melanocarpaDeciduous Full Shade to Full Sun 3B – 8B 3’ – 6’ 4’ – 6’ MGl, MA, NE, NW, SE, NoCA, SoCA, E-CanE-Can, E-USChokeberry, RedAronia arbutifolia Deciduous Partial Shade to Full Sun 4B – 9A 6’ – 10’ 4’ – 6’ MGL, MA, NE, NW, SE, NoCA, SoCAE-USCoyote BrushBaccharis pilularis ssp. ConsanguineaDeciduous Partial Shade to Full Sun 5A - 10A 4' - 6' 6' - 8' L NoCA, SoCA US-HICrabapple, AmericanMalus coronariaDeciduous Full Sun 3B - 8A 15’ - 25’ 10’ - 25’ TreeGL, MA, NE, NW, SE, NoCA, SoCAMidwest-USCrape MyrtleLagerstoemia indicaDeciduous Full Sun 7A - 9A 15' - 25' 15' - 25' Tree MA, SE, NoCA, SoCA AsiaElderberry, AmericanSambucus canadensisDeciduous Partial Shade to Full Sun 4A – 9B 10’ – 15’ 6’ – 10’ LGL, GP, MA, NW, SC, SE, NoCA, SoCAE-USElderberry, MexicanSambucus mexican 'Blue Elderberry'Deciduous Partial Shade to Full Sun 7B - 10A 8' - 15' 15' XL NoCA, SoCA W-USFour-wing SaltbushAtriplex canescensDeciduous Partial Shade to Full Sun 8A - 11 4' - 6' 10' L SC, SoCAW-US, Midwest-USFringe Tree, ChineseChionanthus retususDeciduous Full Shade to Full Sun 5B - 9A 15’ - 25’ 10’ - 15’ TreeGL, MA, NW, NE, SC, SE, NoCA, SoCAAsiaHolly, WinterberryIlex verticillataDeciduous Partial Shade to Full Sun 3B – 9A 6’ – 10’ 8’ – 15’ LGL, MA, NW, SC, SE, NoCA, SoCA, E-CanE-US, E-CanLilac, DwarfSyringa meyeriDeciduous Full Sun 3B – 8A 5’ – 8’ 8’ – 10’ LGL, MA, NE, NW, SC, SE, NoCA, SoCAAsiaMagnolia, GalaxyMagnolia x ‘Galaxy’Deciduous Partial Shade to Full Sun 5A - 8B 15’ - 20’ 15’ - 25’ TreeGL, MA, NE, NW, SC, SE, NoCA, SoCAAsiaMagnolia, SaucerMagnolia x soulangianaDeciduous Partial Shade to Full Sun 5A - 9A 15’ - 25’ 15’ - 25’ TreeMA, NE, NW, SC, SE, NoCA, SoCAAsiaPlum, MexicanPrunus mexicanaDeciduous Partial Shade to Full Sun 6B - 8A 15' - 25' 15' - 25' TreeSoCA S-USPlum, PurpleleafPrunus cerasiferaDeciduous Full Sun 5B - 8A 15’ - 25’ 15’ - 25’ TreeGL, MA, NE, NW, SE, NoCA, SoCAEurope, AsiaPlum, Purpleleaf 'Krauter Vesuvius'Prunus cerasifera 'Krauter Vesuvius'Deciduous Full Sun 5B - 8A 15’ - 25’ 15’ - 25’ Tree NW, SoCA Europe, AsiaRedbud, EasternCercis canadensisDeciduous Partial Shade to Full Sun 4B - 9A 15’ - 25’ 15’ - 25’ TreeGL, GP, MA, NE, NW, SE, NoCA, SoCAE-US, S-US, MexicoRedbud, MexicanCercis canadensisDeciduous Partial Shade to Full Sun 6B - 8A 15' - 20' 10' - 15' XL SC, SoCAE-US, S-US, MexicoSugar Bush, Sugar SumacRhus ovataDeciduous Partial Shade to Full Sun 8A - 11 8' - 15' 10' L NW, NoCA, SoCA SW-USSweetshrubCalycanthus floridusDeciduous Full Shade to Full Sun 5B – 10A 6’ – 10’ 6’ – 12’ LGL, MA, NW, SC, SE, NoCA, SoCAE-USWillow, DesertChilopsis linearisDeciduous Full Sun 7A - 11 15' - 25' 15' - 25' Tree NoCA, SoCA SW-US, Mexico1
Common Name1,2,8Latin Name Plant Type SunHardiness RangeMature Height5Mature Spread5Sizing7Availability9NativityAcacia, Bailey's PurpleAcacia baileyana 'Purpurea'Evergreen Full Sun 10B - 11 15' - 20' 20' - 30' Tree NoCA, SoCA AustraliaAcacia, CatclawAcacia greggiEvergreen Full Sun 9A - 11 15' - 25' 15' - 20' Tree SoCA SW-USAfter Dark PeppermintAgonis flexuosa "Jervis Bay Afterdark'Evergreen Full Sun 10 - 11 15' - 18' 10' - 15' XL SoCA AustraliaBottlebrush, LemonCallistemon citrinusEvergreen Full Sun 9A - 11 10' - 15' 10' - 15' XL SE, SoCA AustraliaCamellia, JapaneseCamellia japonicaEvergreen Partial Shade to Full Sun 7A - 9A 10' - 15' 6' - 10' LMA, NW, SC, SE, NoCA, SoCAAsiaGold Medallion Shrub FormCassia leptophyllaEvergreen Partial Shade 7A - 9A 10' - 15' 6' - 10' L SoCA South AmericaHawthorn, IndianRaphiolepsis indicaEvergreen Partial Shade to Full Sun 8A - 11 4' - 10' 3' - 10' LNW, SC, SE, NoCA, SoCAAsiaHawthorn, YeddaRaphiolepsis umbellata 'Majestic Beauty'Evergreen Partial Shade to Full Sun 8A - 10A 8' - 10' 8' - 10' L SC, SE, NoCA, SoCA AsiaHolly, ChineseIlex cornutaEvergreen Partial Shade to Full Sun 7A - 9A 15' - 25' 15' - 25' TreeMA, NE, NW, SE, NoCA, SoCAAsiaHolly, Foster’sIlex x attenuata ‘Fosteri’Evergreen Partial Shade to Full Sun 6A - 9A 20’ - 25’ 6’ - 10’ LMA, NE, NW, SC, SE, NoCA, SoCASE-USHolly, InkberryIlex glabraEvergreen Partial Shade to Full Sun 6A – 9A 4’ – 8’ 2’ – 4’ SMA, NE, SC, SE, NoCA, SoCA, E-CanE-US, E-CanHolly, Nellie StevensIlex xEvergreen Partial Shade to Full Sun 6A - 9A 15’ - 25’ 6’ - 10’ LMA, NE, NW, SC, SE, NoCA, SoCAEurope/Asia-DevelopedHolly, San JoseIlex x aquipernyiEvergreen Full Shade to Full Sun 5B - 9A 15' - 20' 10' - 15' XL NW, SC, NoCA, SoCAEurope/Asia-DevelopedHolly, YauponIlex vomitoriaEvergreen Full Shade to Full Sun 7A - 10A 15' - 18' 10' - 15' XLMA, NW, SC, SE, NoCA, SoCASE-USJuniper, CaliforniaJuniperus californicaEvergreen Partial Shade to Full Sun 8A - 10A 8' - 12' 6' L SC, NoCA, SoCA US-CALemon Scented TeaLeptospermum petersoniiEvergreen Full Sun 9B - 10 12 - 20' 8' - 12' XL SoCA AustraliaManzanita, BigberryArctostaphylos glaucaEvergreen Partial Shade to Full Sun 7A - 11 6' - 15' 8' - 10' L NoCA, SoCA US-CAManzanita, Del MarGrandulosa ssp. CrassifoliaEvergreen Partial Shade to Full Sun 8A - 11 6' - 15' 8' - 10' L SC, NoCA, SoCA US-CAManzanita, EastwoodArctostaphylos glandulosaEvergreen Partial Shade to Full Sun 8A - 11 3' - 6' 5' - 6' M SC, NoCA, SoCA US-CAManzanita, Howard McMinnArctostaphylos densifloraEvergreen Partial Shade to Full Sun 8A - 11 4' - 6' 6' M SC, NoCA, SoCA US-CAMock OrangePittosporum tobiraEvergreen Partial Shade to Full Sun 8A - 11 6' - 10' 10' - 15' XL NW, SC, NoCA, SoCA AsiaNarrowleaf PittosporumPittosporum PhillyreoidesEvergreen Partial Shade to Full Sun 9A - 11 20' - 30' 15' - 20' TreeNoCA, SoCA US-CAOlive, FruitlessOlea europaea 'Fruitless'Evergreen Full Sun 8A - 11 15' - 25' 15' - 20' Tree SoCA Europe, AsiaOsmanthus, SweetOsmanthus , fragramsEvergreen Partial Shade to Full Sun 7B - 9A 15' - 25' 15' - 25' TreeSoCA AsiaPalm, MiraguamaCoccothrinax miraguamaEvergreen Partial Shade to Full Sun 9B-11 15' - 20’ 6' - 8’ L SoCA Caribbean2
Common Name1,2,8Latin Name Plant Type SunHardiness RangeMature Height5Mature Spread5Sizing7Availability9NativityPalm, Pacific/Fiji FanPritchardia pacificaEvergreen Partial Sun 10B-11 10' - 20’ 5' -10’ L SoCA OceaniaPalm, PeaberryThrinax morrisiiEvergreen Partial Sun to Full Sun 10B-11 15' - 20’ 6' - 8’ L SoCAUS-FL, CaribbeanPalm, Sea ThatchThrinax radiateEvergreen Partial Sun to Full Sun 10B-11 15' - 20’ 8' - 10’ L SoCAUS-FL, CaribbeanPalm, ThurstonPritchardia thurstoniiEvergreen Full Sun 10B-11 15' - 25’ 8’ L SoCA OceaniaPalm, WindmillTrachycarpus fortuneiEvergreen Partial Sun to Shade 8 - 10 10' - 20’ 6' - 10’ L SoCA AsiaPalmetto, DwarfSabal minorEvergreen Partial Sun to Full Sun 8B - 11 4' - 6' 3' - 6' M NoCA, SoCA SE-USPittosporum KohuhuPittosporum tenuifoliumEvergreen Partial Shade to Full Sun 9A-10B 12' - 20’ 6' - 15’ XL NoCA, SoCA OceaniaPowderpuffCalliandra haematocephalaEvergreen Partial Shade to Full Sun 9B-11 10' - 15’ 10' - 15’ XL SoCASouth AmericaPowderpuff, PinkCalliandra surinamensisEvergreen Partial Shade to Full Sun 10A-11 12' - 15’ 12' - 15’ XL SoCA South AmericaStrawberry TreeArbutus unedoEvergreen Partial Shade to Full Sun 7B - 11 15' - 25' 15' - 25' TreeSC, SE, NoCA, SoCA EuropeSumac, Lemonade BerryRhus, integrifoliaEvergreen Partial Shade to Full Sun 9B-11 6' - 10’ 10' - 15’ XL SoCA US-CAToyonHeteromeles arbutifoliaEvergreen Partial Shade to Full Sun 8B-10B 8' - 15’ 15’ XL SC, NoCA, SoCA W-USTrumpet TreeTabebuia impetiginosaEvergreen Full Sun 9B-11 15' - 20’ 15' - 20’ Tree SoCACentral America, South AmericaWax Myrtle, PacificMyrica californicaEvergreen Partial Shade to Full Sun 7B - 11 15' - 25' 15' - 25' TreeNW, SC, NoCA, SoCA W-USYellow-wood, Long LeafedPodocarpus henkeliiEvergreen Partial Shade to Full Sun 9A-11 15' - 25’ 8' - 15’ XL SoCA AfricaBerkeley SedgeCarex divulsaGrass/Sedge Partial Shade to Full Sun 5 - 9 12" - 18" 12" - 18" XS NW, NoCA, SoCA EuropeBlue Grama GrassBouteloua gracilisGrass/Sedge Partial Sun to Full Sun 4 - 9 12" - 36" 24" - 36" SGP, SC, GL, NoCA, SoCAW-USBlue Moor GrassSesleria caeruleaGrass/Sedge Partial Sun to Full Sun 5 - 9 12" 12" - 24" XS NoCA, SoCAEuropeBlue Oat GrassHelictotrichon sempervirensGrass/Sedge Full sun 4 – 8 20” – 24” 20” – 40” XSGL, MA, NW, NoCA, SoCAEuropeDeer GrassMuhlenbergia rigensGrass/Sedge Partial Sun to Full Sun 5 - 11 48" - 60" 48" - 72" M NoCA, SoCA US-CAFlax LilyDianella caeruleaGrass/Sedge Partial Sun to Full Sun 7 - 11 12"- 24" 12" - 24" XS NoCA, SoCA, SE AustraliaFoothill NeedlegrassNasella lepidaGrass/Sedge Partial Sun to Full Sun 6 - 9 12" - 36" 12" - 60" S NoCA, SoCA US-CANyalla Mat RushLomandra longifolia NyallaGrass/Sedge Partial Shade to Full Sun 7 - 11 36" - 48" 36" - 48" S NoCA, SoCA AustraliaSan Diego SedgeCarex spissaGrass/SedgePartial Shade to Partial Sun6 - 10 36" - 72" 24" - 60" S NoCA, SoCA SW-USTropic Belle Mat RushLomandra hystrix TropicbelleGrass/Sedge Partial Shade to Full Sun 8 - 11 24" - 36" 24" - 48" S SoCA Australia3
Common Name1,2,8Latin Name Plant Type SunHardiness RangeMature Height5Mature Spread5Sizing7Availability9NativityWire GrassJuncus patensGrass/Sedge Partial Shade to Full Sun 6 - 10 12" - 24" 12" - 24" XS NW, NoCA, SoCA US-CANotes:7. All Filterra vault systems incorporate a ponding depth ranging from 12"-36" between finished grade and media surface. For systems with more than 18" from finshed grade to media (FTIBC, FTIBP, FTPD, etc), Contech recommends choosing a species with "Sizing" noted as "XL" or "Tree".5. Mature height and spread do not reflect plant size at planting / system activation. Contact Contech for information on available sizes at activation. 1. The species listed are drought tolerant and have applicability to bioretention due to shallow root zones.2. The species highlighted in green are typically more readily available in the noted regions as the listed species or another similar cultivar.3. This list is subject to availability and Contech reserves the right to make appropriate substitutions when necessary. 4. For species not listed, please contact Contech for suitability.6. Contech promotes the use of non-invasive species in Filterra systems, and has made efforts to maintain a plant list free of invasives. However, always check with local sources, as some species listed (even natives) may be invasive in some regions and not others. 8. The species highlighted in orange are available for an additional charge of $250 per plant required.9. Availability Key: GL=Great Lakes; GP=Great Plains; MA=Mid-Atlantic; NE=Northeast; NW=Northwest; SW=Southwest; SE=Southeast; SC=South Central; NoCA=Northern CA; SoCA=Southern CA; E-Can=Eastern Canada; W-Can=Western Canada4