HomeMy WebLinkAboutCT 80-46; HIGHLAND DRIVE 5 LOT SF RESIDENCES; PRIORITY DEVELOPMENT PROJECT (PDP) STORM WATER MANAGEMENT PLAN (SWQMP) FOR HIGHLAND 5; 2024-10-01STORM WATER QUALITY MANAGEMENT PLAN OCTOBER 2024
CITY OF CARLSBAD
PRIORITY DEVELOPMENT PROJECT (PDP) STORM WATER QUALITY MANAGEMENT PLAN (SWQMP) FOR
HIGHLAND 5 CW SIGNATURE F1, LLC., 2908-2924 HIGHLAND AVE GRADING PERMIT CT80-46 / PUD2021-0043 / GR2021-0044 / DWG534-7A
ENGINEER OF WORK:
WILLIAM J. SUITER, RCE #68964 EXP: 12-31-25
PASCO LARET SUITER & ASSOCIATES, INC.
119 ABERDEEN DRIVE
CARDIFF, CA 92007
PREPARED FOR: CW SIGNATURE F1, LLC. 5927 PRIESTLY DRIVE, SUITE 110 CARLSBAD, CA 92008
PREPARED BY:
119 ABERDEEN DRIVE CARDIFF, CA 92007 PH: 858-259-8212
DATE:
JANUARY 2023
REVISED OCTOBER 2024
PASCO LARET SUITER
& ASSOCIATES
CIVIL ENGINEERING+ LAND PLANNING+ LAND SURVEYING
STORM WATER QUALITY MANAGEMENT PLAN OCTOBER 2024
TABLE OF CONTENTS
Certification Page
Project Vicinity Map
FORM E-34 Storm Water Standard Questionnaire
Site Information
FORM E-36 Standard Project Requirement Checklist
Summary of PDP Structural BMPs
Attachment 1: Backup for PDP Pollutant Control BMPs
Attachment 1a: DMA Exhibit
Attachment 1b: Tabular Summary of DMAs and Design Capture Volume Calculations
Attachment 1c: Harvest and Use Feasibility Screening (when applicable)
Attachment 1d: Infiltration Feasibility Analysis (when applicable)
Attachment 1e: Pollutant Control BMP Design Worksheets / Calculations
Attachment 1f: Trash Capture BMP Requirements
Attachment 2: Backup for PDP Hydromodification Control Measures
Attachment 2a: Hydromodification Management Exhibit
Attachment 2b: Management of Critical Coarse Sediment Yield Areas
Attachment 2c: Geomorphic Assessment of Receiving Channels
Attachment 2d: Flow Control Facility Design
Attachment 3: Structural BMP Maintenance Thresholds and Actions
Attachment 4: Single Sheet BMP (SSBMP) Exhibit
Attachment 5: Geotechnical Report
STORM WATER QUALITY MANAGEMENT PLAN OCTOBER 2024
CERTIFICATION PAGE
Project Name: HIGHLAND
Project ID: CT80-46 / PUD2021-0043 / GR2021-0044 / DWG 534-7A
I hereby declare that I am the Engineer in Responsible Charge of design of storm water BMPs for this project, and that I have exercised responsible charge over the design of the project as defined
in Section 6703 of the Business and Professions Code, and that the design is consistent with the requirements of the BMP Design Manual, which is based on the requirements of SDRWQCB Order No. R9-2013-0001 (MS4 Permit) or the current Order.
I have read and understand that the City Engineer has adopted minimum requirements for managing urban runoff, including storm water, from land development activities, as described in the BMP Design Manual. I certify that this SWQMP has been completed to the best of my ability and accurately reflects the project being proposed and the applicable source control and site design BMPs proposed to minimize the potentially negative impacts of this project's land development activities on water quality. I understand and acknowledge that the plan check review of this SWQMP by the City Engineer is confined to a review and does not relieve me, as the
Engineer in Responsible Charge of design of storm water BMPs for this project, of my responsibilities for project design.
RCE 68964, 12-31-25
Engineer of Work's Signature, PE Number & Expiration Date WILLIAM J. SUITER
Print Name
Company
Date
PASCO LARET SUITER & ASSOCIATES
10-2-2024
STORM WATER QUALITY MANAGEMENT PLAN OCTOBER 2024
PROJECT VICINITY MAP
STORM WATER STANDARDS
QUESTIONNAIRE
E-34
Development Services
Land Development Engineering
1635 Faraday Avenue
442-339-2750
www.carlsbadca.gov
To address post-development pollutants that may be generated from development projects, the city requires that new development and significant redevelopment priority projects incorporate Permanent Storm Water Best Management Practices (BMPs) into the project design per Carlsbad BMP Design Manual (BMP Manual). To view the BMP Manual, refer
to the Engineering Standards (Volume 5).
This questionnaire must be completed by the applicant in advance of submitting for a development application (subdivision,
discretionary permits and/or construction permits). The results of the questionnaire determine the level of storm water standards that must be applied to a proposed development or redevelopment project. Depending on the outcome, your
project will either be subject to ‘STANDARD PROJECT’ requirements, “PRIORITY DEVELOPMENT PROJECT (PDP) requirements or not considered a development project. This questionnaire will also determine if the project is subject to
TRASH CAPTURE REQUIREMENTS.
Your responses to the questionnaire represent an initial assessment of the proposed project conditions and impacts. City staff has responsibility for making the final assessment after submission of the development application. If staff determines that the questionnaire was incorrectly filled out and is subject to more stringent storm water standards than initially assessed by you, this will result in the return of the development application as incomplete. In this case, please make the changes to the questionnaire and resubmit to the city.
If you are unsure about the meaning of a question or need help in determining how to respond to one or more of the questions, please seek assistance from Land Development Engineering staff.
A completed and signed questionnaire must be submitted with each development project application. Only one completed and signed questionnaire is required when multiple development applications for the same project are submitted concurrently.
PROJECT INFORMATION
PROJECT NAME: APN:
ADDRESS:
The project is (check one): New Development Redevelopment
The total proposed disturbed area is: ft2 ( ) acres
The total proposed newly created and/or replaced impervious area is: ft2 ( ) acres
If your project is covered by an approved SWQMP as part of a larger development project, provide the project ID and the SWQMP # of the larger development project:
Project ID SWQMP #:
Then, go to Step 1 and follow the instructions. When completed, sign the form at the end and submit this with your application to the city.
This Box for City Use Only
City Concurrence:
YES NO Date: Project ID:
By:
E-34 Page 1 of 4 REV 08/22
INSTRUCTIONS:
Highland 156-200-28, -29, -30, -31, -32
2908-2924 Highland Drive, Carlsbad, CA 92008
X
58,891 1.35
28,678 0.66
CT80-46 N/A
C cityof
Carlsbad
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I O I O I
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E-34 Page 2 of 4 REV 08/22
STEP 1
TO BE COMPLETED FOR ALL PROJECTS
To determine if your project is a “development project”, please answer the following question: YES NO
Is your project LIMITED TO routine maintenance activity and/or repair/improvements to an existing building or structure that do not alter the size (See Section 1.3 of the BMP Design Manual for guidance)?
If you answered “yes” to the above question, provide justification below then go to Step 6, mark the box stating “my project is not a ‘development project’ and not subject to the requirements of the BMP manual” and complete applicant information.
Justification/discussion: (e.g. the project includes only interior remodels within an existing building): If you answered “no” to the above question, the project is a ‘development project’, go to Step 2.
STEP 2
TO BE COMPLETED FOR ALL DEVELOPMENT PROJECTS
To determine if your project is exempt from PDP requirements pursuant to MS4 Permit Provision E.3.b.(3), please answer the following questions:
Is your project LIMITED to one or more of the following: YES NO
1. Constructing new or retrofitting paved sidewalks, bicycle lanes or trails that meet the following criteria: a) Designed and constructed to direct storm water runoff to adjacent vegetated areas, or other non- erodible permeable areas; OR b) Designed and constructed to be hydraulically disconnected from paved streets or roads; OR c) Designed and constructed with permeable pavements or surfaces in accordance with USEPA Green Streets guidance?
2. Retrofitting or redeveloping existing paved alleys, streets, or roads that are designed and constructed in accordance with the USEPA Green Streets guidance?
3. Ground Mounted Solar Array that meets the criteria provided in section 1.4.2 of the BMP manual?
If you answered “yes” to one or more of the above questions, provide discussion/justification below, then go to Step 6, mark the second box stating “my project is EXEMPT from PDP …” and complete applicant information.
Discussion to justify exemption (e.g. the project redeveloping existing road designed and constructed in accordance with the USEPA Green Street guidance):
If you answered “no” to the above questions, your project is not exempt from PDP, go to Step 3.
X
N/A - Project is a development project
X
X
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E-34 Page 3 of 4 REV 08/22
STEP 3
TO BE COMPLETED FOR ALL NEW OR REDEVELOPMENT PROJECTS
To determine if your project is a PDP, please answer the following questions (MS4 Permit Provision E.3.b.(1)): YES NO
1. Is your project a new development that creates 10,000 square feet or more of impervious surfaces collectively over the entire project site? This includes commercial, industrial, residential, mixed-use, and public development projects on public or private land.
2. Is your project a redevelopment project creating and/or replacing 5,000 square feet or more of impervious surface collectively over the entire project site on an existing site of 10,000 square feet or more of impervious surface? This includes commercial, industrial, residential, mixed-use, and public development projects on public or private land.
3. Is your project a new or redevelopment project that creates and/or replaces 5,000 square feet or more of impervious surface collectively over the entire project site and supports a restaurant? A restaurant is a
facility that sells prepared foods and drinks for consumption, including stationary lunch counters and refreshment stands selling prepared foods and drinks for immediate consumption (Standard Industrial Classification (SIC) code 5812).
4. Is your project a new or redevelopment project that creates 5,000 square feet or more of impervious
surface collectively over the entire project site and supports a hillside development project? A hillside development project includes development on any natural slope that is twenty-five percent or greater.
5. Is your project a new or redevelopment project that creates and/or replaces 5,000 square feet or more of impervious surface collectively over the entire project site and supports a parking lot? A parking lot is a
land area or facility for the temporary parking or storage of motor vehicles used personally for business or for commerce.
6. Is your project a new or redevelopment project that creates and/or replaces 5,000 square feet or more of impervious street, road, highway, freeway or driveway surface collectively over the entire project site? A street, road, highway, freeway or driveway is any paved impervious surface used for the transportation of automobiles, trucks, motorcycles, and other vehicles.
7. Is your project a new or redevelopment project that creates and/or replaces 2,500 square feet or more of impervious surface collectively over the entire site, and discharges directly to an Environmentally Sensitive Area (ESA)? “Discharging Directly to” includes flow that is conveyed overland a distance of 200 feet or less from the project to the ESA, or conveyed in a pipe or open channel any distance as an isolated flow from the project to the ESA (i.e. not commingled with flows from adjacent lands).*
8. Is your project a new development or redevelopment project that creates and/or replaces 5,000 square feet or more of impervious surface that supports an automotive repair shop? An automotive repair shop is a facility that is categorized in any one of the following Standard Industrial Classification (SIC) codes: 5013, 5014, 5541, 7532-7534, or 7536-7539.
9. Is your project a new development or redevelopment project that creates and/or replaces 5,000 square feet or more of impervious area that supports a retail gasoline outlet (RGO)? This category includes
RGO’s that meet the following criteria: (a) 5,000 square feet or more or (b) a project Average Daily Traffic (ADT) of 100 or more vehicles per day.
10. Is your project a new or redevelopment project that results in the disturbance of one or more acres of land and are expected to generate pollutants post construction?
11. Is your project located within 200 feet of the Pacific Ocean and (1) creates 2,500 square feet or more of impervious surface or (2) increases impervious surface on the property by more than 10%? (CMC 21.203.040)
If you answered “yes” to one or more of the above questions, your project is a PDP. If your project is a redevelopment
project, go to step 4. If your project is a new project, go to step 5, complete the trash capture question.
If you answered “no” to all of the above questions, your project is a ‘STANDARD PROJECT’. Go to step 5, complete the trash capture question.
* Environmentally Sensitive Areas include but are not limited to all Clean Water Act Section 303(d) impaired water bodies; areas designated as Areas of Special Biological Significance by the State Water Resources Control Board (Water Quality Control Plan for the San Diego Basin (1994) and amendments); water bodies designated with the RARE beneficial use by the State Water Resources Control Board (Water Quality Control Plan for the San Diego Basin (1994) and amendments); areas designated as preserves or their equivalent under the Multi Species Conservation Program within the Cities and County of San Diego; Habitat Management Plan; and any other equivalent environmentally sensitive areas which have been identified by the City.
X
X
X
X
X
X
X
X
X
X
X
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E-34 Page 4 of 4 REV 08/22
STEP 4
TO BE COMPLETED FOR REDEVELOPMENT PROJECTS THAT ARE PRIORITY DEVELOPMENT PROJECTS (PDP)
ONLY Complete the questions below regarding your redevelopment project (MS4 Permit Provision E.3.b.(2)): YES NO
Does the redevelopment project result in the creation or replacement of impervious surface in an amount of less than 50% of the surface area of the previously existing development? Complete the percent impervious calculation below:
Existing impervious area (A) = sq. ft.
Total proposed newly created or replaced impervious area (B) = sq. ft.
Percent impervious area created or replaced (B/A)*100 = %
If you answered “yes”, the structural BMPs required for PDP apply only to the creation or replacement of impervious surface
and not the entire development. Go to step 5, complete the trash capture question.
If you answered “no,” the structural BMP’s required for PDP apply to the entire development. Go to step 5, complete the trash capture question.
STEP 5
TO BE COMPLETED FOR ALL DEVELOPMENT PROJECTS
Complete the question below regarding your Project (SDRWQCB Order No. 2017-0077):
YES NO
Is the Project within any of the following Priority Land Use (PLU) categories and not exempt from trash capture requirements per section 4.4.2.2 of the BMP Manual?
R-23 (15-23 du/ac), R-30 (23-30 du/ac), PI (Planned Industrial), CF (Community Facilities), GC (General Commercial), L (Local Shopping Center), R (Regional Commercial), V-B (Village-Barrio), VC (Visitor Commercial), O (Office), VC/OS (Visitor Commercial/Open Space), PI/O (Planned Industrial/Office), or Public Transportation Station
If you answered “yes”, the ‘PROJECT’ is subject to TRASH CAPTURE REQUIREMENTS. Go to step 6, check the first box stating, “My project is subject to TRASH CAPTURE REQUIREMENTS …” and the second or third box as determined in step 3.
If you answered “no”, Go to step 6, check the second or third box as determined in step 3. List exemption if applicable for ‘no’ answer here:
STEP 6
CHECK THE APPROPRIATE BOX(ES) AND COMPLETE APPLICANT INFORMATION
My project is subject to TRASH CAPTURE REQUIREMENTS and must comply with TRASH CAPTURE
REQUIREMENTS of the BMP Manual. I understand I must prepare a Storm Water Quality Management Plan (SWQMP).
My project is a ‘STANDARD PROJECT’ OR EXEMPT from PDP and must only comply with ‘STANDARD PROJECT’ stormwater requirements of the BMP Manual. I will submit a “Standard Project Requirement Checklist Form E-36”. If my project is subject to TRASH CAPTURE REQUIREMENTS, I will submit a TRASH CAPTURE Storm Water Quality
Management Plan (TCSWQMP) per E-35A.
My project is a PDP and must comply with PDP stormwater requirements of the BMP Manual. I understand I must prepare a Storm Water Quality Management Plan (SWQMP) per E-35 template for submittal at time of application.
Note: For projects that are close to meeting the PDP threshold, staff may require detailed impervious area calculations and exhibits to verify if ‘STANDARD PROJECT’ stormwater requirements apply.
My project is NOT a ‘development project’ and is not subject to the requirements of the BMP Manual. Applicant Information and Signature Box
Applicant Name: Applicant Title:
Applicant Signature: Date:
9,860
28,678
X
X
BRIAN ARDOLINO PROJECT MANAGER
02/23/2022
X
290
X
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/:)~~
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
SITE INFORMATION CHECKLIST
Project Summary Information
Project Name Highland
Project ID CT 80-46
Project Address 2908-2924 Highland Drive
Carlsbad, CA 92008
Assessor's Parcel Number(s) (APN(s)) 156-200-28-00, 156-200-29-00, 156-200-30-00,
156-200-31-00, 156-200-32-00
Project Watershed (Hydrologic Unit) Hydrologic Unit: Carlsbad
Hydrologic Area: Buena Vista Creek
Hydrologic Sub-Area: El Salto #904.21
Parcel Area
1.36 Acres
( 59,318 Square Feet)
Existing Impervious Area
(subset of Parcel Area)
0.226 Acres
(9,860 Square Feet)
Area to be disturbed by the project
(Project Area)
1.35 Acres
( 58,891 Square Feet)
Project Proposed Impervious Area
(subset of Project Area)
0.66 Acres
( 28,678 Square Feet)
Project Proposed Pervious Area
(subset of Project Area)
0.69 Acres
( 30,213 Square Feet)
Note: Proposed Impervious Area + Proposed Pervious Area = Area to be Disturbed by the
Project.
This may be less than the Parcel Area.
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
Description of Existing Site Condition and Drainage Patterns
Current Status of the Site (select all that apply):
Existing development
Previously graded but not built out
Agricultural or other non-impervious use
Vacant, undeveloped/natural
Description / Additional Information:
The existing site consists of two single-family residences, an access road, and associated
hardscape and landscape
Existing Land Cover Includes (select all that apply):
Vegetative Cover
Non-Vegetated Pervious Areas
Impervious Areas
Description / Additional Information: See description above.
Underlying Soil belongs to Hydrologic Soil Group (select all that apply):
NRCS Type A
NRCS Type B
NRCS Type C
NRCS Type D
Approximate Depth to Groundwater (GW):
GW Depth < 5 feet
5 feet < GW Depth < 10 feet
10 feet < GW Depth < 20 feet
GW Depth > 20 feet
Existing Natural Hydrologic Features (select all that apply):
Watercourses
Seeps
Springs
Wetlands
None
Description / Additional Information: N/A
IJ
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
Description of Existing Site Topography and Drainage [How is storm water runoff conveyed from
the site? At a minimum, this description should answer (1) whether existing drainage
conveyance is natural or urban; (2) describe existing constructed storm water conveyance
systems, if applicable; and (3) is runoff from offsite conveyed through the site? if so, describe]:
The property is located at 2908-2924 Highland Drive. The site is bordered by residential lots to the north
and south, an agricultural lot to the east, and Highland drive to the west. Interstate I-5 is located
approximately 1,800 ft to the west.
The existing project site contains two single-family residences, an access easement/driveway bisecting the
lot, and associated hardscape and landscape. The western three quarters of the site drains via overland
flow to the west and is collected and conveyed north via an asphalt berm in Highland Drive. The eastern
quarter of the site drains via overland flow into the lot to the east. No offsite flows are expected.
Runoff from the project site discharges to public storm conveyance system in Highland Drive which
discharges to Buena Vista Creek, then to Buena Vista Lagoon and ultimately the Pacific Ocean at the
mouth of the lagoon.
Per the United States Department of Agriculture Web Soil Survey, the project site is underlain with
Hydrologic Soil Group B. Refer to Appendix A for soil information.
Using the Rational Method Procedure outlined in the San Diego County Hydrology Manual dated June
2003 (SDCHM), the 100-year, 6-hour storm event peak flow rate was calculated for the project site in the
existing condition. The table below summarizes the existing condition hydrologic analysis.
Summary of Existing Condition 100-Yr Storm Event Hydrologic Analysis
Drainage Basin Node Area (ac) Q100 (cfs)
1 10.10 1.0 2.10
2 20.10 0.4 0.53
TOTAL 1.4 2.63
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
Description of Proposed Site Development and Drainage Patterns
Project Description / Proposed Land Use and/or Activities:
The project proposes demolishing the existing two single-family residences and associated
hardscape, and constructing five single-family residences, five ADUs, associated hardscape,
landscape, an access road, retaining walls, and stormwater collection and conveyance.
The project includes construction of two Biofiltration BMPs which provide stormwater treatment
to meet all local, state, and federal stormwater requirements.
List/describe proposed impervious features of the project (e.g., buildings, roadways, parking
lots, courtyards, athletic courts, other impervious features):
Proposed impervious features include an access road, single-family residences, ADUs, driveways,
and hardscaping.
List/describe proposed pervious features of the project (e.g., landscape areas):
Proposed pervious areas include landscape areas and the biofiltration BMP basins.
Does the project include grading and changes to site topography?
Yes
No
Description / Additional Information:
Grading will be performed to create pads for the residences and ADUs, construct the amenities,
surface improvements, drainage pathways and the biofiltration BMPs. After grading the drainage
patterns will be substantially conforming to the existing condition.
Does the project include changes to site drainage (e.g., installation of new storm water
conveyance systems)?
Yes
No
Description / Additional Information:
In the proposed condition, storm water runoff from the majority of the proposed improvements will
be collected and conveyed to biofiltration basins BMP-1 and BMP-2.
Flow from the project will discharge onto Highland Drive and continue downstream as it does in
the existing condition. The proposed drainage pattern mimics the existing condition.
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
Identify whether any of the following features, activities, and/or pollutant source areas will be
present (select all that apply):
On-site storm drain inlets
Interior floor drains and elevator shaft sump pumps
Interior parking garages
Need for future indoor & structural pest control
Landscape/Outdoor Pesticide Use
Pools, spas, ponds, decorative fountains, and other water features
Food service
Refuse areas
Industrial processes
Outdoor storage of equipment or materials
Vehicle and Equipment Cleaning
Vehicle/Equipment Repair and Maintenance
Fuel Dispensing Areas
Loading Docks
Fire Sprinkler Test Water
Miscellaneous Drain or Wash Water
Plazas, sidewalks, and parking lots
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
Identification of Receiving Water Pollutants of Concern
Describe path of storm water from the project site to the Pacific Ocean (or bay, lagoon, lake or
reservoir, as applicable):
Runoff from the site discharges to Highland Drive and continues in the gutter to Elmwood Street
where it flows south until it enters a catch basin on the corner of Elmwood and Laguna Drive. The
water continues in the Carlsbad MS4 until it discharges to Buena Vista Creek which flows into
Buena Vista Lagoon and ultimately discharges the Pacific Ocean at the mouth of the lagoon.
List any 303(d) impaired water bodies within the path of storm water from the project site to the
Pacific Ocean (or bay, lagoon, lake or reservoir, as applicable), identify the
pollutant(s)/stressor(s) causing impairment, and identify any TMDLs for the impaired water
bodies:
303(d) Impaired Water Body Pollutant(s)/Stressor(s) TMDLs
Buena Vista Creek Benthic Community Effects N/A
Buena Vista Creek Bifenthrin N/A
Buena Vista Creek Selenium N/A
Buena Vista Creek Toxicity N/A
Buena Vista Lagoon Indicator Bacteria N/A
Buena Vista Lagoon Nutrients N/A
Buena Vista Lagoon Sedimentation/Siltation N/A
Buena Vista Lagoon Toxicity N/A
Identification of Project Site Pollutants
Identify pollutants anticipated from the project site based on all proposed use(s) of the site (see
Table B.6-1 below):
Pollutant
Not Applicable to
the Project Site
Anticipated from the
Project Site
Also a Receiving
Water Pollutant of
Concern
Sediment
X Yes
Nutrients X Yes
Heavy Metals X N/A
Organic Compounds X N/A
Trash & Debris X N/A
Oxygen Demanding
Substances X N/A
Oil & Grease X N/A
Bacteria & Viruses X Yes
Pesticides X Yes
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
TABLE B.6-1. Anticipated and Potential Pollutants Generated by Land Use Type
Priority
Project
Categories
General Pollutant Categories
Sediment
Nutrients
Heavy
Metals
Organic
Compounds
Trash &
Debris
Oxygen
Demanding
Substances
Oil &
Grease
Bacteria &
Viruses
Pesticides
Detached
Residential
Development
X
X
X
X
X
X
X
Attached
Residential
Development
X
X
X
P(1)
P(2)
P
X
Commercial
Development
>one acre
P(1)
P(1)
X
P(2)
X
P(5)
X
P(3)
P(5)
Heavy
Industry
X
X
X
X
X
X
Automotive
Repair Shops
X
X(4)(5)
X
X
Restaurants X X X X P(1)
Hillside
Development
>5,000 ft2
X
X
X
X
X
X
Parking Lots
P(1)
P(1)
X
X
P(1)
X
P(1)
Retail
Gasoline
Outlets
X
X
X
X
X
Streets,
Highways &
Freeways
X
P(1)
X
X(4)
X
P(5)
X
X
P(1)
X = anticipated
P = potential
(1) A potential pollutant if landscaping exists onsite.
(2) A potential pollutant if the project includes uncovered parking areas.
(3) A potential pollutant if land use involves food or animal waste products.
(4) Including petroleum hydrocarbons.
(5) Including solvents.
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
Trash Capture BMP Requirements
The project must meet the following Trash Capture BMP Requirements (see Section 4.4 of the
BMP Design Manual): 1) The trash capture BMP is sized for a one-year, one-hour storm event
or equivalent storm drain system, and 2) the trash capture BMP captures trash equal or greater
to 5mm.
Description / Discussion of Trash Capture BMPs:
Oldcastle floguard flat grated inlet catch basin inserts (Model FGP-36F) are being proposed at
the inlets of the overflow catch basins. These help with any trash that may enter the catch basin
from outleting into the street.
Hydromodification Management Requirements
Do hydromodification management requirements apply (see Section 1.6 of the BMP Design
Manual)?
Yes, hydromodification management flow control structural BMPs required.
No, the project will discharge runoff directly to existing underground storm drains discharging
directly to water storage reservoirs, lakes, enclosed embayments, or the Pacific Ocean.
No, the project will discharge runoff directly to conveyance channels whose bed and bank are
concrete-lined all the way from the point of discharge to water storage reservoirs, lakes,
enclosed embayments, or the Pacific Ocean.
No, the project will discharge runoff directly to an area identified as appropriate for an
exemption by the WMAA for the watershed in which the project resides.
Description / Additional Information (to be provided if a 'No' answer has been selected above):
This project is exempt from Hydromodification requirements per the change exception study
“Hydromodification Exemption Analysis for Select Carlsbad Watersheds” dated 9/15/15.
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
Critical Coarse Sediment Yield Areas*
*This Section only required if hydromodification management requirements apply
Based on the maps provided within the WMAA, do potential critical coarse sediment yield areas
exist within the project drainage boundaries?
Yes
No, no critical coarse sediment yield areas to be protected based on WMAA maps
If yes, have any of the optional analyses presented in Appendix H of the manual been
performed?
H.6.1 Site-Specific GLU Analysis
H.7 Downstream Systems Sensitivity to Coarse Sediment
H.7.3 Coarse Sediment Source Area Verification
No optional analyses performed, the project will avoid critical coarse sediment yield areas
identified based on WMAA maps
If optional analyses were performed, what is the final result?
No critical coarse sediment yield areas to be protected based on verification of GLUs onsite.
Critical coarse sediment yield areas exist but additional analysis has determined that
protection is not required. Documentation attached in Attachment 8 of the SWQMP.
Critical coarse sediment yield areas exist and require protection. The project will implement
management measures described in Sections H.2, H.3, and H.4 as applicable, and the areas
are identified on the SWQMP Exhibit.
Discussion / Additional Information:
Refer to Attachment 2b for a Potential Critical Coarse Sediment Yield GIS overlay of the project
area and surrounding areas.
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
Flow Control for Post-Project Runoff*
*This Section only required if hydromodification management requirements apply
List and describe point(s) of compliance (POCs) for flow control for hydromodification
management (see Section 6.3.1). For each POC, provide a POC identification name or number
correlating to the project's HMP Exhibit and a receiving channel identification name or number
correlating to the project's HMP Exhibit.
N/A
Has a geomorphic assessment been performed for the receiving channel(s)?
No, the low flow threshold is 0.1Q2 (default low flow threshold)
Yes, the result is the low flow threshold is 0.1Q2
Yes, the result is the low flow threshold is 0.3Q2
Yes, the result is the low flow threshold is 0.5Q2
If a geomorphic assessment has been performed, provide title, date, and preparer:
Discussion / Additional Information: (optional)
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
Other Site Requirements and Constraints
When applicable, list other site requirements or constraints that will influence storm water
management design, such as zoning requirements including setbacks and open space, or City
codes governing minimum street width, sidewalk construction, allowable pavement types, and
drainage requirements.
In the proposed condition, storm water runoff from the majority of the proposed improvements will
be collected and conveyed to biofiltration basins BMP-1 and BMP-2. Due to existing grades, it is
not feasible to drain a portion of the proposed access easement (Lot 6) along the western PL
(Area SR-1) nor the pervious area along the eastern PL (Area SM-1) to one of the biofiltration
basins. Area SR-1 is proposing a combination of pervious pavers and pervious landscape to
function as a self-retaining area. Area SM-1 is entirely pervious landscape and is designated a
self-mitigating area.
Flow from the project will discharge to the existing storm drain and continue downstream as it
does in the existing condition. The proposed drainage pattern mimics the existing condition.
Optional Additional Information or Continuation of Previous Sections As Needed
This space provided for additional information or continuation of information from previous
sections as needed.
E-36 Page 1 of 4 Revised 02/22
Development Services
Land Development Engineering
1635 Faraday Avenue
442-339-2750
www.carlsbadca.gov
STANDARD PROJECT
REQUIREMENT
CHECKLIST
E-36
Project Information
Project Name:
Project ID:
DWG No. or Building Permit No.:
Baseline BMPs for Existing and Proposed Site Features
Complete the Table 1 - Site Design Requirement to document existing and proposed site features and the BMPs to be
implemented for them. All BMPs must be implemented where applicable and feasible. Applicability is generally assumed if a feature exists or is proposed.
BMPs must be implemented for site design features where feasible. Leaving the box for a BMP unchecked means it will not be implemented (either partially or fully) either because it is inapplicable or infeasible. Explanations must be provided in the area below. The table provides specific instructions on when explanations are required.
Table 1 - Site Design Requirement
A. Existing Natural Site Features (see Fact Sheet BL-1)
1. Check the boxes below for each existing feature on
the site. 1. Select the BMPs to be implemented for each identified feature. Explain
why any BMP not selected is infeasible in the area below.
SD-G Conserve natural features
SD-H Provide buffers around waterbodies
Natural waterbodies
Natural storage reservoirs & drainage corridors -- Natural areas, soils, & vegetation (incl. trees) --
B. BMPs for Common Impervious Outdoor Site Features (see Fact Sheet BL-2)
1. Check the boxes below for each
proposed feature. 2. Select the BMPs to be implemented for each proposed feature. If neither BMP SD-B nor
SD-I is selected for a feature, explain why both BMPs are infeasible in the area below.
SD-B Direct runoff to pervious areas
SD-I Construct surfaces from permeable materials
Minimize size of impervious areas
Streets and roads Check this box to confirm
that all impervious areas on
the site will be minimized
where feasible.
If this box is not checked,
identify the surfaces that
cannot be minimized in area
below, and explain why it is
Sidewalks & walkways
Parking areas & lots
Driveways
Patios, decks, & courtyards
Hardcourt recreation areas
HIGHLANDS
CT80-46
DWG 534-7A
X X
X
X
X
X
X
X
X
X
X
X
X
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Carlsbad
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E-36 Page 2 of 4 Revised 02/22
Other: _______________ infeasible to do so.
C. BMPs for Rooftop Areas: Check this box if rooftop areas are proposed and select at least one BMP
below.
If no BMPs are selected, explain why they are infeasible in the area below.
(see Fact
Sheet BL-3)
SD-B Direct runoff to pervious areas
SD-C Install green roofs
SD-E Install rain barrels
D. BMPs for Landscaped Areas: Check this box if landscaping is proposed and select the BMP below
SD-K Sustainable Landscaping
If SD-K is not selected, explain why it is infeasible in the area below.
(see Fact
Sheet BL-4)
Provide discussion/justification for site design BMPs that will not be implemented (either partially or fully):
Baseline BMPs for Pollutant-generating Sources
All development projects must complete Table 2 - Source Control Requirement to identify applicable requirements for documenting pollutant-generating sources/ features and source control BMPs.
BMPs must be implemented for source control features where feasible. Leaving the box for a BMP unchecked means it will not be implemented (either partially or fully) either because it is inapplicable or infeasible. Explanations must be provided in the area below. The table provides specific instructions on when explanations are required.
Table 2 - Source Control Requirement
A. Management of Storm Water Discharges
1. Identify all proposed outdoor
work areas below
Check here if none are proposed
2. Which BMPs will be used to prevent
materials from contacting rainfall or
runoff?
(See Fact Sheet BL-5)
Select all feasible BMPs for each work area
3. Where will runoff from the
work area be routed?
(See Fact Sheet BL-6)
Select one or more option for each
work area
SC-A Overhead covering
SC-B Separation flows from adjacent areas
SC-C Wind protection
SC-D Sanitary sewer
SC-E Containment system
Other
Trash & Refuse Storage
Materials & Equipment Storage
X
X
X XX
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D
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D
D
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E-36 Page 3 of 4 Revised 02/22
Loading & Unloading
Fueling
Maintenance & Repair
Vehicle & Equipment Cleaning
Other: _________________
B. Management of Storm Water Discharges (see Fact Sheet BL-7)
Select one option for each feature below:
• Storm drain inlets and catch basins … are not proposed will be labeled with stenciling or signage to discourage dumping (SC-F)
• Interior work surfaces, floor drains &
sumps …
are not proposed
will not discharge directly or indirectly to the MS4 or receiving waters
• Drain lines (e.g. air conditioning, boiler,
etc.) …
are not proposed
will not discharge directly or indirectly to the MS4 or receiving waters
• Fire sprinkler test water … are not proposed will not discharge directly or indirectly to the MS4 or receiving waters
Provide discussion/justification for source control BMPs that will not be implemented (either partially or fully):
X
X
X
X
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E-36 Page 4 of 4 Revised 02/22
Form Certification
This E-36 Form is intended to comply with applicable requirements of the city’s BMP Design Manual. I certify that it has been completed to the best of my ability and accurately reflects the project being proposed and the applicable BMPs proposed to minimize the potentially negative impacts of this project's land development activities on water quality. I understand and acknowledge that the review of this form by City staff is confined to a review and does not relieve me as the person in charge of overseeing the selection and design of storm water BMPs for this project, of my responsibilities for project design. Preparer Signature: Date:
Print preparer name: SAUL LLANES
8/30/2022
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
SUMMARY OF PDP STRUCTURAL BMPS
PDP Structural BMPs
All PDPs must implement structural BMPs for storm water pollutant control (see Chapter 5 of
the BMP Design Manual). Selection of PDP structural BMPs for storm water pollutant control
must be based on the selection process described in Chapter 5. PDPs subject to
hydromodification management requirements must also implement structural BMPs for flow
control for hydromodification management (see Chapter 6 of the BMP Design Manual). Both
storm water pollutant control and flow control for hydromodification management can be
achieved within the same structural BMP(s).
PDP structural BMPs must be verified by the City at the completion of construction. This may
include requiring the project owner or project owner's representative to certify construction of
the structural BMPs (see Section 1.12 of the BMP Design Manual). PDP structural BMPs must
be maintained into perpetuity, and the City must confirm the maintenance (see Section 7 of the
BMP Design Manual).
Use this form to provide narrative description of the general strategy for structural BMP
implementation at the project site in the box below. Then complete the PDP structural BMP
summary information sheet for each structural BMP within the project (copy the BMP summary
information page as many times as needed to provide summary information for each individual
structural BMP).
Describe the general strategy for structural BMP implementation at the site. This information
must describe how the steps for selecting and designing storm water pollutant control BMPs
presented in Section 5.1 of the BMP Design Manual were followed, and the results (type of
BMPs selected). For projects requiring hydromodification flow control BMPs, indicate whether
pollutant control and flow control BMPs are integrated together or separate.
DMA 1 and 2
Step 1A: DMAs 1,2 are not self-mitigating, de minimis, or self-retaining.
Step 1B: There are no site design BMPs proposed for the project for which the runoff factor can
be adjusted.
Step 2: Harvest and use is not feasible. Refer to Attachment 1c.
Step 3: Infiltration is not feasible. Refer to Attachment 1d (Form I-8).
Step 3C: Biofiltration BMPs (BMP-1, BMP-2) have been selected and sized per the design criteria
to meet pollutant control requirements.
Trash Capture
Oldcastle floguard flat grated inlet catch basin inserts (Model FGP-36F) are being proposed at the
inlet of the overflow catch basins. These help with any trash that may enter the catch basin from
outleting into the street.
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
BIOFILTRATION (BF-1)
Biofiltration systems are effective at removing sediments and pollutants which are associated with
fine particles by filtration through surface vegetation and underlying engineered soil media. These
systems can also delay runoff peaks by providing detention and/or retention capacity in the media
layer and ponding area through the controlled release of treated runoff. The addition of vegetation
not only increases the aesthetic value of these areas, but also enhances the filtration component
of the system through plant uptake and helps maintain the porosity of the engineered soil layer.
Biofiltration systems can be constructed as either large or small scale devices with native or
amended soils. Biofiltration systems, like the system designed for this project, collect storm water
from impervious areas (roof areas and other impervious surfaces) through the site’s grading
design.
Biofiltration systems function by allowing ponded runoff to infiltrate down through the mulch layer,
amended soil layer, and the gravel layer; ultimately discharging to the onsite storm drain system
through the system’s perforated under drain. The biofiltration basin area will be landscaped with a
combination of ground covers, shrubs and/or trees as selected by the project’s landscape
architect. Rip rap energy dissipaters will be located at points where concentrated flow enters the
biofiltration basin to minimize erosion from occurring.
The biofiltration system for this project has been integrated into the drainage design to meet
pollutant control requirements for the site.
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
Structural BMP Summary Information
[Copy this page as needed to provide information for each individual proposed
structural BMP]
Structural BMP ID No. BMP-1
DWG 534-7A Sheet No. 3
Type of structural BMP:
Retention by harvest and use (HU-1)
Retention by infiltration basin (INF-1)
Retention by bioretention (INF-2)
Retention by permeable pavement (INF-3)
Dry Wells (INF-4)
Partial retention by biofiltration with partial retention (PR-1)
Biofiltration (BF-1)
Proprietary Biofiltration (BF-3)
Flow-thru treatment control included as pre-treatment/forebay for an onsite retention or
biofiltration BMP (provide BMP type/description and indicate which onsite retention or
biofiltration BMP it serves in discussion section below)
Detention pond or vault for hydromodification management
Other (describe in discussion section below)
Purpose:
Pollutant control only
Hydromodification control only
Combined pollutant control and hydromodification control
Pre-treatment/forebay for another structural BMP
Other (describe in discussion section below)
Discussion (as needed):
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
Structural BMP Summary Information
[Copy this page as needed to provide information for each individual proposed
structural BMP]
Structural BMP ID No.BMP- 2
DWG 534-7A Sheet No. 3
Type of structural BMP:
Retention by harvest and use (HU-1)
Retention by infiltration basin (INF-1)
Retention by bioretention (INF-2)
Retention by permeable pavement (INF-3)
Dry Wells (INF-4)
Partial retention by biofiltration with partial retention (PR-1)
Biofiltration (BF-1)
Proprietary Biofiltration (BF-3)
Flow-thru treatment control included as pre-treatment/forebay for an onsite retention or
biofiltration BMP (provide BMP type/description and indicate which onsite retention or
biofiltration BMP it serves in discussion section below)
Detention pond or vault for hydromodification management
Other (describe in discussion section below)
Purpose:
Pollutant control only
Hydromodification control only
Combined pollutant control and hydromodification control
Pre-treatment/forebay for another structural BMP
Other (describe in discussion section below)
Discussion (as needed):
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
ATTACHMENT 1
BACKUP FOR PDP POLLUTANT CONTROL BMPS
This is the cover sheet for Attachment 1.
Check which Items are Included behind this cover sheet:
Attachment
Sequence
Contents Checklist
Attachment 1a DMA Exhibit (Required)
See DMA Exhibit Checklist on the back of this
Attachment cover sheet. (24”x36” Exhibit
typically required)
Included
Attachment 1b Tabular Summary of DMAs Showing DMA ID
matching DMA Exhibit, DMA Area, and DMA
Type (Required)*
*Provide table in this Attachment OR on DMA
Exhibit in Attachment 1a
Included on DMA
Exhibit in Attachment
1a
Included as
Attachment 1b,
separate from DMA
Exhibit
Attachment 1c Form I-7, Harvest and Use Feasibility Screening
Checklist (Required unless the entire project will
use infiltration BMPs)
Refer to Appendix B of the BMP Design Manual
to complete Form I-7.
Included
Not included because
the entire project will
use infiltration BMPs
Attachment 1d Infiltration Feasibility Analysis (Required unless
the project will use harvest and use BMPs)
Refer to Appendix D of the BMP Design Manual.
Included
Not included because
the entire project will
use harvest and use
BMPs
Attachment 1e Pollutant Control BMP Design Worksheets /
Calculations (Required)
Refer to Appendices B, E, and I of the BMP
Design Manual for structural pollutant control and
significant site design BMP design guidelines
Included
Attachment 1f Trash Capture BMP Design Calculations
(Required unless the entire project will use
permanent storm water quality basins)
Refer to Appendices J of the BMP Design Manual
for Trash capture BMP design guidelines
Included
Not included because
the entire project will use
permanent storm water
quality basins (i.e.
infiltration, biofiltration
BMPs)
LEGEND
PROPERTY BOUNDARY
CENTERLINE OF ROAD
ADJACENT PROPERTY LINE I
RIGHT-OF-WAY
PROPOSED CONTOUR LINE
--------
---256 ----
KS~S:c:c.1
~
OMA DRAINAGE BASIN BOUNDARY
ROOF/HARDSCAPE AREA (IMPERVIOUS)
POOUSPA AREA (IMPERVIOUS)
PERMEABLE PAVER AREA (PERVIOUS)
BMP AREA (PERVIOUS) I • • • • • • • • • • • • • xi ■ X X X ■ X X ■ X X ■ X X ■
SOIL TYPE INFORMATION
SOIL: TYPE B HYDROLOGIC SOILS PER WEB SOIL SURVEY APPLICATION
AVAJLABLE THROUGH UNITED STATES DEPARTMENT OF AGRICULTURE
COARSE SEDIMENT YIELD
NO CRITICAL COARSE SEDIMENT YIELD AREAS TO BE PROTECTED.
REFER TO PRIORITY DEVELOPMENT PROJECT Sl,\QMP PREPARED
BY PASCO, LARET, SUITER &ASSOCIATES
GROUNDWATER INFORMATION
GROUNDWATER NOT ENCOUNTERED; ASSUMED TO BE AT DEPTHS
GREATER THAN 20'
TREATMENTCONTROLBMPS
BIOFILTRATION BASIN
BIOFILTRATION BASIN
BMP-1
BMP-2
EXISTING NATURAL HYDROLOGIC FEATURES
NIA
GRAPHIC SCALE: 1" = 20'
20 0 20 40 60
-
r-------
1
~M 1
~REA= 61 SF
LOT 5-ADU
DMA-1
IMPAREA = 6,936 SF (0.16AC)
TOTALAREA=13,330 SF (0.30A
TRASH CAPTURE
ROW
PUBLIC IMPROVEMENTS I PROJECT SITE
BMP SIZE & ORIFICE DIAMETER SUMMARY
BMP# OWNERSHIP LOCATION TYPE BMPAREA ORIFICE LOCATION HMPORIFICE
(SF) DIAMETER (IN) SCALE:NTS
1 CW SIGNATURE BIOFILTRATION 618 BROOKS BOX IN 4
F1,LLC. NORTHWEST BASIN BMP-1
2 CW SIGNATURE SOUTHWEST BIOFILTRATION 1,620 BROOKS BOX IN 4 F1,LLC. BASIN BMP-2
3 CW SIGNATURE CATCH BASINS OLDCASTLE FLOGUARD NIA NIA NIA F1,LLC. FOR BMP 1&2 MODEL FGP-36F (BMP-3)
AS-BUil TOMA
2908-2924 HIGHLAND DRIVE
LOT4
\ tr=-----:---~
I I
II I LOT3
II I
F"""""'"~==-t-J I
-I
I
II
________ ...J
II
II
I
II
II X .
I
X X X X xxxx xxxxx
X X X X
P-2 ,
I
1~-
=I
DMA2
IMP. AREA= 21,742 SF ( 0.50AC)
TOTALAREA=45,561 SF (1.04 AC)
I
LOT1 L
~i
I I
11 I
I I
11 I
II !
r---,J I I
x BIOFILTRATION c
x AREA= 1,620 S c
I ,,..
L~=---=i~~r. =-=:-:=-=~...,..... / LO 1-ADU
11 II
II I
IL
l$X XX
X X
DROUGHT TOLERANT
PLANTS (TYP)
OLDCASTLE FLOGUARD FLAT
GRATED INLET CATCH BASIN
INSERT FGP-36F FOR TRASH
CAPTURE OR APPROVED EQUAL
PAVERS
I
I -----i
PLAN VIEW -OMA EXHIBIT
SCALE: 1" = 20' HORIZONTAL
LOT 2 -ADU
-~
I
---7
I I .
LOT2 I
I
OMA 1 -AREA & SIZING CAL GULA TIONS
DMA/BMP AREA (SF) POST PROJECT RUNOFF COEFFICIENT
1 6,411 ROOF/HARDSCAPE 0.9
1 525 POOUSPA 0.9
1 398 PERMEABLE PAVER 0.1
1 5,378 LANDSCAPE 0.1
1 618 BMPBASIN 0.1
TOTAL 13,330 TOTAL
OMA 1 -DCV CAL GULA TION
DCV = Rf' d 'A •,bin/ft
Rf= RUNOFF FACTOR (UNITLESS), ON-SITE AREA ONLY
d = 85TH PERCENTILE, 24-HOUR STORM EVENT RAINFALL DEPTH (IN)
A= TRIBUTARY AREA (SF), ON-SITE AREA ONLY
RF= [(6936'0.9)+(6394'0.1)Y13330
RF=0.52
d=0.59IN
A= 13330SF
DCV = 0.52'0.59 IN'13330SF",b IN/FT
=341CUFT
AREA 'ADJUSTED RUNOFF (SF)
5,770
473
40
538
62
6883
OMA 2 -AREA & SIZING CAL GULA TIONS
DMA/BMP AREA (SF) POST PROJECT RUNOFF COEFFICIENT
2 20,890 ROOF/HARDSCAPE 0.9
2 852 POOUSPA 0.9
2 2,173 PERMEABLE PAVER 0.1
2 20,026 LANDSCAPE 0.1
2 1,620 BMPBASIN 0.1
TOTAL 45,561 TOTAL
OMA 2 -DCV CAL GULA TION
DCV = Rf' d 'A •,bin/ft
Rf= RUNOFF FACTOR (UNITLESS), ON-SITE AREA ONLY
d = 85TH PERCENTILE, 24-HOUR STORM EVENT RAINFALL DEPTH (IN)
A= TRIBUTARY AREA (SF), ON-SITE AREA ONLY
RF= [(21742'0.9)+(23819'0.1)Y45561
RF=0.48
d=0.59IN
A =45561 SF
DCV = 0.48'0.59 IN'45561 SF",b IN/FT
= 1,075CU FT
AREA 'ADJUSTED RUNOFF (SF)
18,801
767
217
2,003
162
21,950
LID SIZE FACTOR MIN.AREA PROP.AREA
0.03 206 618
PROPOSED BMP AREA > MIN. BMP AREA
LID SIZE FACTOR MIN.AREA PROP.AREA
0.03 659 1620
PROPOSED BMP AREA > MIN. BMP AREA
BIOFIL TRA TION BMP-2 DETAIL
SCALE:NTS
PASCO LARET SUITER
& ASSOC!A7rlES
San Diego I Encinitas I Orange County
Phone 858.259.8212 I www.plsaengineerirw.com
PLSA3661
ATTACHMENT 1c
The City of San Diego | Storm Water Standards
Worksheet B.3-1 : Form I-7 | January 2018 Edition
Harvest and Use Feasibility Checklist Worksheet B.3-1 : Form I-7
1.Is there a demand for harvested water (check all that apply) at the project site that is
reliably present during the wet season?
Toilet and urinal flushing
Landscape irrigation
Other:______________
2.If there is a demand; estimate the anticipated average wet season demand over a
period of 36 hours. Guidance for planning level demand calculations for toilet/urinal
flushing and landscape irrigation is provided in Section B.3.2.
[Provide a summary of calculations here]
3.Calculate the DCV using worksheet B-2.1.
DCV = __________ (cubic feet)
[Provide a summary of calculations here]
3a. Is the 36-hour
demand greater than or
equal to the DCV?
Yes / No
3b. Is the 36-hour demand greater
than 0.25DCV but less than the full
DCV?
Yes / No
3c. Is the 36-
hour demand
less than
0.25DCV?
Yes
Harvest and use appears to
be feasible. Conduct more
detailed evaluation and
sizing calculations to
confirm that DCV can be
used at an adequate rate to
meet drawdown criteria.
Harvest and use may be feasible. Conduct
more detailed evaluation and sizing
calculations to determine feasibility.
Harvest and use may only be able to be
used for a portion of the site, or
(optionally) the storage may need to be
upsized to meet long term capture targets
while draining in longer than 36 hours.
Harvest and
use is
considered to
be infeasible.
Is harvest and use feasible based on further evaluation?
Yes, refer to Appendix E to select and size harvest and use BMPs.
No, select alternate BMPs.
tras
1t it it ¢::J ¢:I
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ATTACHMENT 1d
Storm Water Standards February 2016 Edition
Appendices: BMP Design Manual
I-3
Appendix I: Forms and Checklists
Categorization of Infiltration Condition Form I-8
Part 1 - Full Infiltration Feasibility Screening Criteria
Would infiltration of the full design volume be feasible from a physical perspective without any undesirable consequences
that cannot be reasonably mitigated?
Note that it is not necessary to investigate each and every criterion in the worksheet if infiltration is precluded.
Instead a letter of justification from a geotechnical professional familiar with the local conditions substantiating
any geotechnical issues will be required.
Criteria Screening Question Yes No
1
Is the estimated reliable infiltration rate below proposed facility locations greater
than 0.5 inches per hour? The response to this Screening Question shall be based on
a comprehensive evaluation of the factors presented in Appendix C.2 and Appendix D.
X
Provide basis:
Yes. Testing demonstrates that the estimated reliable infiltration rate is 0.87 in/hr, which is greater than 0.5
in/hr
Summarize findings of studies; provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion
of study/data source applicability.
2
Can infiltration greater than 0.5 inches per hour be allowed without increasing
risk of geotechnical hazards (slope stability, groundwater mounding, utilities, or
other factors) that cannot be mitigated to an acceptable level? The response to this
Screening Question shall be based on a comprehensive evaluation of the factors
presented in Appendix C.2.
No
Provide basis:
No. This is a 5-lot project. Given the nature of the bedrock, there is a high potential for mounding, and
lateral migration of groundwater, onsite and offsite, to adversely affect existing and proposed
improvements, causing distress.
Summarize findings of studies; provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion
of study/data source applicability.
Shawn Foy Weedon, GE 2714
)lOL
Storm Water Standards February 2016 Edition
Appendices: BMP Design Manual
I-4
Page 2 of 4
Criteria Screening Question Yes No
3
Can infiltration greater than 0.5 inches per hour be allowed without increasing
risk of groundwater contamination (shallow water table, storm water pollutants
or other factors) that cannot be mitigated to an acceptable level? The response to
this Screening Question shall be based on a comprehensible evaluation of the factors
presented in Appendix C.3.
Provide basis:
No response required. See Criteria No. 2.
Summarize findings of studies; provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion
of study/data source applicability.
4
Can infiltration greater than 0.5 inches per hour be allowed without causing
potential water balance issues such as a change of seasonality of ephemeral streams
or increased discharge of contaminated groundwater to surface waters? The
response to this Screening Question shall be based on a comprehensive evaluation of
the factors presented in Appendix C.3.
Provide basis:
No response required. See Criteria No. 2.
Summarize findings of studies; provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion
of study/data source applicability.
Part 1
Result*
In the answers to rows 1-4 are “Yes” a full infiltration design is potentially feasible. The feasibility
screening category is Full Infiltration
If any answer from row 1-4 is “No”, infiltration may be possible to some extent but would not generally
be feasible or desirable to achieve a “full infiltration” design.
Proceed to Part 2
Proceed
to Part 2
* To be completed using gathered site information and best professional judgement considering the definition of MEP in the MS4
Permit. Additional testing and/or studies may be required by [City Engineer] to substantiate findings.
Storm Water Standards February 2016 Edition
Appendices: BMP Design Manual
I-5
Page 3 of 4
Part 2 - Partial Infiltration vs. No Infiltration Feasibility Screening Criteria
Would infiltration of water in an appreciable amount be physically feasible without any negative consequences
that cannot be reasonably mitigated?
Criteria Screening Question Yes No
5
Do soil and geologic conditions allow for infiltration in any appreciable
rate or volume? The response to this Screening Question shall be based on
a comprehensive evaluation of the factors presented in Appendix C.2 and
Appendix D.
X
Provide basis:
Testing and analyses show the near-surface earth materials have an estimated reliable infiltration rate of
roughly 0.87 in/hr in the general vicinity of the proposed BMP.
Summarize findings of studies; provide reference to studies, calculations, maps, data sources, etc. Provide narrative
discussion of study/data source applicability.
6
Can infiltration in any appreciable quantity be allowed without
increasing risk of geotechnical hazards (slope stability, groundwater
mounding, utilities, or other factors) that cannot be mitigated to an
acceptable level? The response to this Screening Question shall be based on
a comprehensive evaluation of the factors presented in Appendix C.2.
X
Provide basis:
If storm water infiltration into the onsite soils were to occur, there would be an increased potential for
shallow perched groundwater conditions (i.e., groundwater mounding) to develop, owing to the collection
of water upon the indurated and less permeable unweathered old paralic deposits, which occur at depths
ranging between approximately 2 feet and 3 feet below the existing grades, within the project area. Perched
groundwater conditions which would adversely affect the performance of the existing and proposed
improvements, onsite and offsite, as well as the public right-of-way, and cuase distress, has a high potential
to occur.
Summarize findings of studies; provide reference to studies, calculations, maps, data sources, etc. Provide narrative
discussion of study/data source applicability.
Storm Water Standards February 2016 Edition
Appendices: BMP Design Manual
I-6
Page 4 of 4
Criteria Screening Question Yes No
7
Can Infiltration in any appreciable quantity be allowed without posing
significant risk for groundwater related concerns (shallow water table,
storm water pollutants or other factors)? The response to this Screening
Question shall be based on a comprehensive evaluation of the factors
presented in Appendix C.3.
Provide basis:
See criteria No. 6
Summarize findings of studies; provide reference to studies, calculations, maps, data sources, etc. Provide narrative
discussion of study/data source applicability.
8
Can infiltration be allowed without violating downstream water rights?
The response to this Screening Question shall be based on a comprehensive
evaluation of the factors presented in Appendix C.3.
Provide basis:
Downstream water rights are a legal matter that do not fall under the purview of geotechnical engineering.
However, there are no water courses traversing the subject site. See criteria No. 6
Summarize findings of studies; provide reference to studies, calculations, maps, data sources, etc. Provide narrative
discussion of study/data source applicability.
Part 2
Result*
If all answers from row 5-8 are yes then partial infiltration design is potentially feasible. The
feasibility screening category is Partial Infiltration.
If any answer from row 5-8 is no, then infiltration of any volume is considered to be
infeasible within the drainage area. The feasibility screening category is No Infiltration.
No
Infiltration
* To be completed using gathered site information and best professional judgement considering the definition of MEP in the MS4
Permit. Additional testing and/or studies may be required by Agency/Jurisdictions to substantiate findings.
Appendix I: Factor of Safety and Design Infiltration Rate Worksheet
D-19 February 26, 2016
Factor of Safety Infiltration Rate Worksheet Form I-9
Factor Criteria Factor Description Assigned
Weight (w)
Factor
Value (v)
Product (p)
p = w x v
A Suitability
Assessment
Soil assessment methods 0.25 1 0.25
Predominant soil texture 0.25 1 0.25
Site soil variability 0.25 1 0.25
Depth to groundwater/impervious layer 0.25 1 0.25
ASuitability Assessment Safety Factor, S = Ep Min = 2.0
B Design
Level of pretreatment/expected sediment loads 0.5
Redundancy/resiliency 0.25
Compaction during construction 0.25
BDesign Safety Factor, S = Ep
total A BCombined Safety Factor, S = S x S 2.0 min
observedObserved Infiltration Rate, inch/hr, K
(corrected for test-specific bias)1.74 in/hr
design observed totalDesign Infiltration Rate, in/hr, K = K / S 0.87 in/hr
Supporting Data
Briefly describe infiltration test and provide reference to test forms: See Appendix E of Geotechnical Report
by GeoSoils, Inc. (2021).
Table D .1-1: Consid erations for Geotechnical Analysis oflnfih ration Restrictions
Is Element
Restriction El ement Applicable'!
(Yes/No)
BMP is within I 00' of Contaminated Soils No
BMP is within I 00' of Industrial Activities Lacking Source Control No
BMP is within 100' of Well/Groundwater Basin No
BMP is within 50' of Septic Tanks/Leach Fields No
Mandatory BMP is within 10' of Structures/Tanks/Walls No
Consideration BMP is within IO' of Sewer 1Jtil ities No
s BMP is within IO' of Groundwater Tahle No
BMP is within Hydric Soils No
BMP is within Highly Liquefiable Soils and has Connectivity to Structures No
BMP is within 1.5 Times the Height of Adjacent Steep Slopes (>25%) No
County Staff has Assigned "Restricted" Infiltration Category No
BMP is within Predominantly Type D Soil No
BMP is within LO' of Property Line No
Optional BMP is within Fill Depths of>S' (Existing or Proposed) No Consideration BMP is within LO' of Underground Utilities s No
BMP is within 250' of Ephemeral Stream No
Other (Provide detailed geotechnical suooort) -Geologic Hazards Yes
Based on examination of the best available information, 0 Unrestricted l have not identified any restrictions above
Result
Based on examination of the best available information, X Restricted I have identified one or more restrictions above
ATTACHMENT 1e
Category #Description i ii Units
1 Drainage Basin ID or Name 1 2 unitless
2 85th Percentile 24-hr Storm Depth 0.59 0.59 inches
3 Impervious Surfaces Not Directed to Dispersion Area (C=0.90) 6,936 21,742 sq-ft
4 Semi-Pervious Surfaces Not Serving as Dispersion Area (C=0.30)sq-ft
5 Engineered Pervious Surfaces Not Serving as Dispersion Area (C=0.10) 6,394 23,819 sq-ft
6 Natural Type A Soil Not Serving as Dispersion Area (C=0.10)sq-ft
7 Natural Type B Soil Not Serving as Dispersion Area (C=0.14)sq-ft
8 Natural Type C Soil Not Serving as Dispersion Area (C=0.23)sq-ft
9 Natural Type D Soil Not Serving as Dispersion Area (C=0.30)sq-ft
10 Does Tributary Incorporate Dispersion, Tree Wells, and/or Rain Barrels? No No yes/no
11 Impervious Surfaces Directed to Dispersion Area per SD-B (Ci=0.90) sq-ft
12 Semi-Pervious Surfaces Serving as Dispersion Area per SD-B (Ci=0.30)sq-ft
13 Engineered Pervious Surfaces Serving as Dispersion Area per SD-B (Ci=0.10)sq-ft
14 Natural Type A Soil Serving as Dispersion Area per SD-B (Ci=0.10)sq-ft
15 Natural Type B Soil Serving as Dispersion Area per SD-B (Ci=0.14)sq-ft
16 Natural Type C Soil Serving as Dispersion Area per SD-B (Ci=0.23)sq-ft
17 Natural Type D Soil Serving as Dispersion Area per SD-B (Ci=0.30)sq-ft
18 Number of Tree Wells Proposed per SD-A #
19 Average Mature Tree Canopy Diameter ft
20 Number of Rain Barrels Proposed per SD-E #
21 Average Rain Barrel Size gal
22 Total Tributary Area 13,330 45,561 sq-ft
23 Initial Runoff Factor for Standard Drainage Areas 0.52 0.48 unitless
24 Initial Runoff Factor for Dispersed & Dispersion Areas 0.00 0.00 unitless
25 Initial Weighted Runoff Factor 0.52 0.48 unitless
26 Initial Design Capture Volume 341 1,075 cubic-feet
27 Total Impervious Area Dispersed to Pervious Surface 0 0 sq-ft
28 Total Pervious Dispersion Area 0 0 sq-ft
29 Ratio of Dispersed Impervious Area to Pervious Dispersion Area n/a n/a ratio
30 Adjustment Factor for Dispersed & Dispersion Areas 1.00 1.00 ratio
31 Runoff Factor After Dispersion Techniques 0.52 0.48 unitless
32 Design Capture Volume After Dispersion Techniques 341 1,075 cubic-feet
33 Total Tree Well Volume Reduction 0 0 cubic-feet
34 Total Rain Barrel Volume Reduction 0 0 cubic-feet
35 Final Adjusted Runoff Factor 0.52 0.48 unitless
36 Final Effective Tributary Area 6,932 21,869 sq-ft
37 Initial Design Capture Volume Retained by Site Design Elements 0 0 cubic-feet
38 Final Design Capture Volume Tributary to BMP 341 1,075 cubic-feet
False
False
Automated Worksheet B.1: Calculation of Design Capture Volume (V2.0)
Dispersion
Area, Tree
Well & Rain
Barrel Inputs
(Optional)
Standard
Drainage
Basin Inputs
Results
Tree & Barrel
Adjustments
Initial Runoff
Factor
Calculation
Dispersion
Area
Adjustments
No Warning Messages
Category #Description i ii Units
1 Drainage Basin ID or Name 1 2 unitless
2 85th Percentile Rainfall Depth 0.59 0.59 inches
3 Predominant NRCS Soil Type Within BMP Location B B unitless
4 Is proposed BMP location Restricted or Unrestricted for Infiltration Activities? Restricted Restricted unitless
5 Nature of Restriction Groundwater Groundwater unitless
6 Do Minimum Retention Requirements Apply to this Project? Yes Yes yes/no
7 Are Habitable Structures Greater than 9 Stories Proposed? No No yes/no
8 Has Geotechnical Engineer Performed an Infiltration Analysis? Yes Yes yes/no
9 Design Infiltration Rate Recommended by Geotechnical Engineer 0.000 0.000 in/hr
10 Design Infiltration Rate Used To Determine Retention Requirements 0.000 0.000 in/hr
11 Percent of Average Annual Runoff that Must be Retained within DMA 4.5% 4.5% percentage
12 Fraction of DCV Requiring Retention 0.02 0.02 ratio
13 Required Retention Volume 7 22 cubic-feet
False
False
Automated Worksheet B.2: Retention Requirements (V2.0)
Advanced
Analysis
Basic Analysis
Result
No Warning Messages
Category #Description i ii Units
1 Drainage Basin ID or Name 1 2 sq-ft
2 Design Infiltration Rate Recommended 0.000 0.000 in/hr
3 Design Capture Volume Tributary to BMP 341 1,075 cubic-feet
4 Is BMP Vegetated or Unvegetated? Vegetated Vegetated unitless
5 Is BMP Impermeably Lined or Unlined? Lined Lined unitless
6 Does BMP Have an Underdrain? Underdrain Underdrain unitless
7 Does BMP Utilize Standard or Specialized Media? Standard Standard unitless
8 Provided Surface Area 618 1,620 sq-ft
9 Provided Surface Ponding Depth 12 8 inches
10 Provided Soil Media Thickness 18 18 inches
11 Provided Gravel Thickness (Total Thickness) 12 12 inches
12 Underdrain Offset 3 3 inches
13 Diameter of Underdrain or Hydromod Orifice (Select Smallest) 4.00 4.00 inches
14 Specialized Soil Media Filtration Rate in/hr
15 Specialized Soil Media Pore Space for Retention unitless
16 Specialized Soil Media Pore Space for Biofiltration unitless
17 Specialized Gravel Media Pore Space unitless
18 Volume Infiltrated Over 6 Hour Storm 0 0 cubic-feet
19 Ponding Pore Space Available for Retention 0.00 0.00 unitless
20 Soil Media Pore Space Available for Retention 0.05 0.05 unitless
21 Gravel Pore Space Available for Retention (Above Underdrain) 0.00 0.00 unitless
22 Gravel Pore Space Available for Retention (Below Underdrain) 0.40 0.40 unitless
23 Effective Retention Depth 2.10 2.10 inches
24 Fraction of DCV Retained (Independent of Drawdown Time) 0.32 0.26 ratio
25 Calculated Retention Storage Drawdown Time 120 120 hours
26 Efficacy of Retention Processes 0.32 0.27 ratio
27 Volume Retained by BMP (Considering Drawdown Time) 110 293 cubic-feet
28 Design Capture Volume Remaining for Biofiltration 231 782 cubic-feet
29 Max Hydromod Flow Rate through Underdrain 0.7378 0.6968 cfs
30 Max Soil Filtration Rate Allowed by Underdrain Orifice 51.58 18.58 in/hr
31 Soil Media Filtration Rate per Specifications 5.00 5.00 in/hr
32 Soil Media Filtration Rate to be used for Sizing 5.00 5.00 in/hr
33 Depth Biofiltered Over 6 Hour Storm 30.00 30.00 inches
34 Ponding Pore Space Available for Biofiltration 1.00 1.00 unitless
35 Soil Media Pore Space Available for Biofiltration 0.20 0.20 unitless
36 Gravel Pore Space Available for Biofiltration (Above Underdrain) 0.40 0.40 unitless
37 Effective Depth of Biofiltration Storage 19.20 15.20 inches
38 Drawdown Time for Surface Ponding 2 2 hours
39 Drawdown Time for Effective Biofiltration Depth 4 3 hours
40 Total Depth Biofiltered 49.20 45.20 inches
41 Option 1 - Biofilter 1.50 DCV: Target Volume 346 1,173 cubic-feet
42 Option 1 - Provided Biofiltration Volume 346 1,173 cubic-feet
43 Option 2 - Store 0.75 DCV: Target Volume 173 587 cubic-feet
44 Option 2 - Provided Storage Volume 173 587 cubic-feet
45 Portion of Biofiltration Performance Standard Satisfied 1.00 1.00 ratio
46 Do Site Design Elements and BMPs Satisfy Annual Retention Requirements? Yes Yes yes/no
47 Overall Portion of Performance Standard Satisfied (BMP Efficacy Factor) 1.00 1.00 ratio
48 Deficit of Effectively Treated Stormwater 0 0 cubic-feet
Biofiltration
Calculations
False
False
False
False
Result
False
False
No Warning Messages
Retention
Calculations
Automated Worksheet B.3: BMP Performance (V2.0)
False
False
BMP Inputs
ATTACHMENT 1e
ATTACHMENT 1F
Submittal Package
FLOGARD® CATCH BASININSERT FILTER
0 Oldcastle lnfrast~~~~-0
Owater
1 - Submittal Drawing
2 - Features & Benefits
3 - Accessories
4 - Inspection & Maintenance
5 - Product Specifications
Table of ConTenTs
Submittal Drawing
seCTion 1
Features & Benefits
seCTion 2
STORMWATER
Removes Pollutants from Runoff
Prior to Entering Waterways
Two-part stainless-steel insert to filter solids and oils/grease.
Easy to install, inspect and maintain, even on small and confined sites.
Efficient System
Catches pollutants where they are easiest to catch, at the inlet.
Variable Design
Able to be retrofitted or used in new projects.
Treatment Train
Can be incorporated as part of a “Treatment Train”.
No Standing Water
Helps to minimize bacteria and odor problems.
Focused Treatment
Removes petroleum hydrocarbons, trash and
Total Suspended Solids (TSS).
Maximum Flexibility
Available in a variety of standard sizes to fit round and square inlets.
Economical
Earn a higher return on system investment.
By the Numbers*:
Filter will remove up to 80% of Total Suspended Solids
(TSS), at least 70% of oils and grease, and up to 40% of
Total Phosphorus (TP) associated with organic debris
as well as Polycyclic Aromatic Hydrocarbons (PAH)
from oil leaks and spills.
*Approximate for urban street application.
CATCH BASIN FILTER TEST RESULTS SUMMARY
Testing Agency % TSS Removal % Oil & Grease Removal % PAH Removal
UCLA 80 70 to 80
U of Auckland Tonking & Taylor, Ltd(for City of Auckland)
78 to 95
U of Hawaii
(for City of Honolulu)
80 20 to 40
INLET FILTRATION
PUT A STOP to TSS
0 Oklcastle lnfrast~~S!!;!~~· 0
PUT A STOPto TSS
Multi-Purpose Catch Basin Insert Retains Sediment, Debris,
Trash and Oils/Grease
FloGard® catch basin insert filters are recommended for areas subject to silt and debris as well as low-to-moderate levels of
petroleum hydrocarbons (oils and grease). Examples of such areas include vehicle parking lots, aircraft ramps, truck and
bus storage yards, business parks, residential and public streets.
Flat-Grated Inlet
Circular Frame InletCaptured debris from FloGard catch basin insert filter in Dana Point, California.
Combination Inlet
CATCH BASIN FILTER COMPETITIVE FEATURE COMPARISON
Evaluation of Catch Basin Filters
(Based on flow-comparable units)
(Scale 1-10)
Oldcastle Other Insert
Filter Types**
Flow Rate 10 7
Removal Efficiency*80%45%
Capacity - Sludge & Oil 7 7
Service Life 10 3
Installation - Ease of Handling / Installation 8 6
Ease of Inspections & Maintenance 7 7
Value 10 2
*Approximate, based on field sediment removal testing in urban street application **Average
Long-Term Value Comparison
(Based on flow-comparable units)
(Scale 1-10)
Oldcastle Other Insert
Filter Types**
Unit Value - Initial ($/cfs treated)10 4
Installation Value ($/cfs treated)10 7
Absorbent Replacement (annual avg ($/cfs treated)10 2
Materials Replacement Value (annual avg ($/cfs treated)10 10
Maintenance Value (annual avg ($/cfs treated)10 7
Total First Year ROI ($/cfs treated)10 5
Total Annual Avg Value ($/cfs treated, avg over 20 yrs)*10 5
(800) 579-8819
oldcastleinfrastructure.com
(I Oldcastle lnfrast~~l\;!~f
0
STORMWATER
INLET FILTRATION
FLOGARD®Catch Basin Insert Filter
Catch basin insert designed to capture sediment, gross solids, trash and petroleum hydrocarbons
from low (“first flush”) flows, even during the most extreme weather conditions
Flat-Grated Inlet
Circular Frame Inlet
Combination Inlet
Example Types, Sizes and Capacities: Additional sizes, including regional and custom options are available.
FloGard Combination Inlet
STANDARD
DEPTH
INLET ID
Inside
Dimension (inch x inch)
GRADE OD
Outside Dimension (inch x inch)
TOTAL
BYPASS
CAPACITY
(cu. ft. / sec.)
SOLIDS
STORAGE
CAPACITY
(cu. ft.)
FILTERED
FLOW
(cu. ft. / sec.)
SHALLOW
DEPTH
SOLIDS
STORAGE
CAPACITY
(cu. ft.)
FILTERED
FLOW
(cu. ft. / sec.)
FGP-1633FGO 16 X 33 18 X 36 7.0 2.5 1.7 FGP-1633FGO8 1.4 1.1
FGP-1836FGO 18 X 36 18 X 40 6.9 2.3 1.6 FGP-1836FGO8 1.3 .9
FGP-2234FGO 22 X 34 24 X 36 8.1 3.6 2.1 FGP-2234FGO8 2.1 1.4
FGP-2436FGO 24 X 36 24 X 40 8.0 3.4 2.0 FGP-2436FGO8 1.95 1.15
STANDARD
DEPTH
INLET ID
Inside
Dimension (inch x inch)
GRADE OD
Outside Dimension
(inch x inch)
TOTAL
BYPASS
CAPACITY
(cu. ft. / sec.)
SOLIDS
STORAGE
CAPACITY
(cu. ft.)
FILTERED
FLOW
(cu. ft. / sec.)
SHALLOW
DEPTH
SOLIDS
STORAGE
CAPACITY
(cu. ft.)
FILTERED
FLOW
(cu. ft. / sec.)
FGP-12F 12 X 12 12 X 14 2.8 0.3 0.4 FGP-12F8 .15 .25
FGP-16F 16 X 16 16 X 19 4.7 0.8 0.7 FGP-16F8 .45 .4FGP-18F 18 X 18 18 X 20 4.7 0.8 0.7 FGP-18F8 .45 .4
FGP-1836F 18 X 36 18 X 40 6.9 2.3 1.6 FGP-1836F8 1.3 .9
FGP-21F 22 X 22 22 X 24 6.1 2.2 1.5 FGP-21F8 1.25 .85
FGP-24F 24 X 24 24 X 27 6.1 2.2 1.5 FGP-24F8 1.25 .85
FGP-2436F 24 X 36 24 X 40 8.0 3.4 2.0 FGP-2436F8 1.95 1.15
FGP-2448F 24 X 48 24 X 48 9.3 4.4 2.4 FGP-2448F8 2.5 1.35
FGP-32F-TN 28 X 28 32 X 32 6.3 2.2 1.5 FGP-32F8-TN 1.25 .85
FGP-30F 30 X 30 30 X 34 8.1 3.6 2.0 FGP-30F8 2.05 1.15
FGP-36F 36 X 36 36 X 40 9.1 4.6 2.4 FGP-36F8 2.65 1.35
FGP-3648F 36 X 48 40 X 48 11.5 6.8 3.2 FGP-3648F8 3.9 1.85
FGP-48F 48 X 48 48 X 54 13.2 9.5 3.9 FGP-48F8 5.45 2.25
FGP-1633F 16 X 34 18 X 36 6.9 2.3 1.6 FGP-1633F8 1.3 .9
FGP-2234F 22 X 34 24 X 36 8.0 3.4 2.0 FGP-2234F8 1.95 1.15
FloGard Flat Grated Inlet
SPECIFIER CHARTSTANDARD & SHALLOW
DEPTH
(Data in these columns is the same for both STANDARD & SHALLOW versions)
STANDARD DEPTH
-20 Inches-
SHALLOW DEPTH
-12 Inches-MODEL NO.MODEL NO.
STANDARD DEPTH
-20 Inches-
SHALLOW DEPTH
-12 Inches-
SPECIFIER CHARTSTANDARD & SHALLOW
DEPTH
(Data in these columns is the same for both STANDARD & SHALLOW versions)MODEL NO.MODEL NO.
MODEL
NUMBER
INLET ID
(inches)
GRADE OD
(inches)
SOLIDS STORAGE
CAPACITY (CU FT)
FILTERED FLOW
(CSF)
TOTAL BYPASS
CAPACITY (CFS)
FGP-RF15F 15 18 0.3 0.4 2.8
FGP-RF18F 18 20 0.8 0.7 4.7
FGP-RF20F 20 23 0.8 0.7 4.7
FGP-RF21F 21 23.5 0.8 0.7 4.7
FGP-RF22F 22 24 0.8 0.7 4.7
FGP-RF24F 24 26 0.8 0.7 4.7
FGP-RF30F 30 32 2.2 1.5 6.1
FGP-RF36F 36 39 3.6 2.0 8.1
FloGard Circular Grated Inlet
SPECIFIER CHART
0 Oklcastle lnfrast~~S!!;!~~· 0
Accessories
seCTion 3
U.S. PATENT #6,551,023 & 6,872,029
FloGard® FILTER
-INSTALLED INTO CATCH BASIN-
GRATE ------~
"ULllMATE" BYPASS FEATURES
GASKET
STAINLl:SS STEEL SUPPORT BASKET -
Fossil Rock7"' ABSORBENT POUCHES
LINER -----
SUP-PORT BASKET ---
CATQ-l BASIN (FLAT GRATE STYLE)
DETAIL A
EXPLODED VIEW
NOTI:S;
l f ilter insert shall have a high flow bypass feature.
2 Filter support frame shall l::e constructed from stainless steel
Type 304.
3.
4.
Filter medium shall l:e Fossil Rode installed and maintained h
accordance with manufacturer specifications.
Storage capacity reflects SY/4 of maximum solids collection prior
to impeding filtering bypass.
December 2018 v.1
Rubberizer® transforms spilled hydrocarbons into a rubber-like solid on contact, and does not re-release when it
is retrieved. The solidification process is non-chemical in nature allowing the US EPA to classify Rubberizer as a
sorbent.
This product, which comes in booms, pillows or granular form, can be used to clean oil from bilges, deck spills,
around hydraulic storage tanks, under hydraulic machinery, in all engineering spaces and most importantly, in
any hydrocarbon fuel spill where leaking oil comes in contact with water.
Rubberizer has been used in clean-up operations around the world and is patented in 22 countries.
The key advantages of the Rubberizer product line when compared to many of the characteristics of the more
conventional products include:
•Works on land or water borne spills•Remains buoyant•Solidifies and is landfill approved
•Resistant to leaching
•Does not release solidified oils under pressure
•Incinerates with less that .1% residual ash•Reduces overall clean-up time•Reduces overall costs
Rubberizer products sorb and transform into a rubber-like material similar to many petroleum based products like:
•Gasoline
•Jet Fuel
•Diesel Fuels
•Transformer Oils•Hydraulic Oils•Lube Oils
•Aromatic Solvents
•Chlorinated Solvents
•Light Crudes
1
How Rubberizer® (Fossil Rock) Products Work*
Rubberizer particulate is a mixture of hydrocarbon polymers plus additives resulting in a grainy material used primarily for cleanup operations
where sweeping and shoveling are involved. It can
also be used for clarification of various emulsions,
or solidification and removal of various petroleum based slicks from the surface of water which is in a controlled state.
0 Oldcastle lnfrast~~S~!'.(
December 2018 v.12
This product, (and the booms and pillows) in which it is the filler, exhibit characteristics that include:
•Lightweight enabling rapid deployment and retrieval (apparent
specific gravity approximately = 0.4)
•Rapid sorption and solidification (measured in minutes),
hydrophobic (no affinity for water)•Permanently buoyant (both before and after sorption)•Will not release solidified liquids under pressure
•Resistant to leaching upon aqueous contact
•High sorbed liquid to sorbent ratios (nominally 5 parts liquid to
1 part sorbent)•Minimal incineration residue (less than .1%)•Little volume increase of sorbed liquids (15% in laboratory
tests, nominally 25% in field applications)
One pound of this product will solidify into a rubber-like material up to 2/3 gallon of jet fuel, diesel, gasoline,transformer oil, hydraulic oils, light crude and many other liquids.
*Rubberizer® = Fossil Rock
0 Oldcastle lnfrast~~S~!'.(
Inspection & Maintenance
seCTion 4
Inspection and Maintenance Guide
DRAIN A G E P ROTECTION SY
S
T
E
M
S
A division of
Oldcastle Infrastructure
FLOGARD+PLUS®
CATCH BASIN INSERT FILTER
0 Oldcastle lnfrast~~S!~!'.(
()water
SCOPE:
Federal, State and Local Clean Water Act regulations and those of insurance carriers require that stormwater filtration systems be maintained and serviced on a recurring basis. The intent of the regulations is to ensure that the systems, on a continuing basis, efficiently remove pollutants from stormwater runoff thereby preventing pollution
of the nation’s water resources. These specifications apply to the FloGard+Plus® Catch Basin Insert Filter.
RECOMMENDED FREQUENCY OF SERVICE:
Drainage Protection Systems (DPS) recommends that installed FloGard+Plus Catch Basin Insert Filters be
serviced on a recurring basis. Ultimately, the frequency depends on the amount of runoff, pollutant loading and
interference from debris (leaves, vegetation, cans, paper, etc.); however, it is recommended that each installation
be serviced a minimum of three times per year, with a change of filter medium once per year. DPS technicians are available to do an on-site evaluation, upon request.
RECOMMENDED TIMING OF SERVICE:
DPS guidelines for the timing of service are as follows:
1.For areas with a definite rainy season: Prior to, during and following the rainy season.
2.For areas subject to year-round rainfall: On a recurring basis (at least three times per year).
3.For areas with winter snow and summer rain: Prior to and just after the snow season and during thesummer rain season.4.For installed devices not subject to the elements (wash racks, parking garages, etc.): On a recurring
basis (no less than three times per year).
SERVICE PROCEDURES:
1.The catch basin grate shall be removed and set to one side. The catch basin shall be visually inspectedfor defects and possible illegal dumping. If illegal dumping has occurred, the proper authorities and
property owner representative shall be notified as soon as practicable.
2.Using an industrial vacuum, the collected materials shall be removed from the liner. (Note: DPS uses a
truck-mounted vacuum for servicing FloGard+Plus catch basin inserts).3.When all of the collected materials have been removed, the filter medium pouches shall be removedby unsnapping the tether from the D-ring and set to one side. The filter liner, gaskets, stainless steel
frame and mounting brackets, etc., shall be inspected for continued serviceability. Minor damage
or defects found shall be corrected on-the-spot and a notation made on the Maintenance Record.
More extensive deficiencies that affect the efficiency of the filter (torn liner, etc.), if approved by thecustomer representative, will be corrected and an invoice submitted to the representative along with theMaintenance Record.
4.The filter medium pouches shall be inspected for defects and continued serviceability and replaced as
necessary, and the pouch tethers re-attached to the liner’s D-ring.5.The grate shall be replaced.
REPLACEMENT AND DISPOSAL OF EXPOSED FILTER MEDIUM AND COLLECTED DEBRIS
The frequency of filter medium exchange will be in accordance with the existing DPS-Customer Maintenance
Contract. DPS recommends that the medium be changed at least once per year. During the appropriate service, or if so determined by the service technician during a non-scheduled service, the filter medium will be replaced with new material. Once the exposed pouches and debris have been removed, DPS has possession and must
dispose of it in accordance with local, state and federal agency requirements.
DPS also has the capability of servicing all manner of storm drain filters, catch basin inserts and catch basins without inserts, underground oil/water separators, stormwater interceptors and other such devices.
All DPS personnel are highly qualified technicians and are confined-space trained and certified. Call us at
(888) 950-8826 for further information and assistance.
2
Product Specifications
seCTion 5
PART 1 — GENERAL
1.1 Section Includes
FloGard® Catch Basin Insert Filter – catch basin filtration device for stormwater treatment.
1.2 References
American Society for Testing and Materials (ASTM)
1.ASTM A2402.ASTM D37863.ASTM D43554.ASTM D44915.ASTM D45336.ASTM D46327.ASTM D47518.ASTM D48339.ASTM D499110.ASTM D5261
PART 2 — PRODUCTS
2.1 Description
This specification describes a Catch Basin Filtration Device that removes sediment, debris, trash and petroleum hydrocarbons (oil and grease) from water flowing into the drainage inlets during low flows (first flush) without impeding the inlet’s maximum design flow. Hydraulic calculations shall be supplied upon request.
The filtration device shall incorporate a sorbent capable of collecting and containing non-soluble pollutants including, but not limited to, petroleum hydrocarbons (oil and grease). Sorbent shall be contained in separate removable containers that can easily be replaced without removing the filter liner. Filtration device shall not rely on collected sediment, debris, trash or filter liner as the medium for hydrocarbon collection.
High capacity filtration devices shall incorporate a debris trap, designed to retain floatable pollutants during high flow periods and both an initial filtering bypass for moderate flows and an ultimate bypass for peak design flows. The installed device shall not impede drainage inlet’s peak design flow prior to or after the device has reached its pollutant storage capacity.
2.2 Materials
Filtration device support frame and hardware shall be manufactured from Type 304
stainless steel. It shall be designed to support maximum anticipated loads from the collected pollutants and water.
Field modifications, welding or painting of the device shall not be allowed.
Device shall incorporate a removable filter liner made from a woven polypropylene
monofilament geotextile with an apparent opening size less than 35 US Mesh and a clean flow rate of not less than 145 gallons per minute (gpm) per square foot, or
stainless steel screen with opening size between 4 and 200 US Mesh. The use of a
non-woven geotextile filter liner shall not be allowed.
Sorbent shall be a hydrophobic material treated to attract and retain petroleum hydrocarbons and other non-soluble pollutants. It shall be non-biodegradable and non-leaching and contain no hazardous ingredients as defined by the U.S. Environmental Protection Agency (EPA).
2.3 Manufacturer
Each catch basin filter device shall be a FloGard as manufactured by Oldcastle Infrastructure, 7100 Longe St, Stockton, California 95206. Phone: (800) 579-8819.
PART 3 — EXECUTION
3.1 Installation
Installation of filtration device shall not require extensive modification of the catch basin and shall be performed by a manufacturer-approved installation contractor. Installation contractor shall be licensed and insured in accordance with agency requirements.
Filtration devices installed into grated, or combination grate with curb opening inlets shall be either supported by resting the support brackets on the grate bearing ledge (installed without the use of bolts or other anchoring devices) or mounted to the catch basin wall with easily removable separate wall mount brackets to allow for quick access to the piping system in the event of an emergency.
Devices for curb opening style inlets (no grate) shall be installed across the entire width of the curb opening and shall be secured to inlet wall, across and beneath the curb opening, using corrosion-resistant anchors (Type 304 stainless steel). The use of chains
or cable to secure the device shall not be allowed.
Filtration devices shall be installed in such a manner as to direct all flows into the device. Distance (gaps) between the inlet wall and the device shall not exceed one half inch. Gaps of less than one half inch shall be sealed with a flexible weatherproof sealant, as approved by agency.
Installation contractor shall supply agency (engineer) with an installation record, denoting the date of installation, drainage inlet location, type of drainage inlet and type and/or size of filtration device.
Kristar Enterprises
1219 Briggs AvenueSanta Rosa, CA95401
(800) 579-8819
www.kristar.com
Street Deposited Sediment
Typical Particle Size Distribution
from urban runoff TSS survey data
0.0
20.0
40.0
60.0
80.0
100.0
10 10 0 1000 10000
Particle Size (micron)
Fr
a
c
t
i
o
n
Fi
n
e
r
b
y
We
i
g
h
t
(
%
)
Woodward-Clyde (1997)Honolulu StreetSediment(2004)
FloGard +Plus®
TSS Removal
Typical Urban Runoff Distribution*
*extrapolated from available field test data
020406080100
0 20 40 60 80 100 120 140
Flux (gpm/sq ft)
%
re
m
o
v
a
l
FloGard +Plus Linear (FloGard +Plus)
Testing Agency % TSS Removal
% Oil & Grease
Removal
UCLA 80*70-80
U of AucklandTonkin & Taylor Ltd(for City of Auck-
land)
95**78-86***
U of Hawaii (for Cityof Honolulu)
80***
FloGard +PLUS
®Test Results Summary
*Sand larger than ~575 µm**Sand distribution ~100-1000 µm***Local street sweep material (distribution consistent with NURP)
FLOGARD +PLUS®
Independent field tests conducted in Hawaii and New Zealand on FloGard +PLUS® Catch Basin Insert Filters to determine removal efficiency of Total Suspended Solids (TSS). Results were extrapolated to a typical street
deposited sediment particle size. Removal efficiencies were plotted and reflect effective TSS removal over a typical
range of operating flow rates. Results are shown below as a function of unit internal surface area.
%
re
m
o
v
a
l
Kristar Enterprises
1219 Briggs Avenue
Santa Rosa, CA
95401
(800) 579-8819
www.kristar.com
Street Deposited Sediment
Typical Particle Size Distribution
from urban runoff TSS survey data
0.0
20.0
40.0
60.0
80.0
100.0
10 10 0 1000 10000
Particle Size (micron)
Fr
a
c
t
i
o
n
Fi
n
e
r
b
y
We
i
g
h
t
(
%
)
Woodward-Clyde (1997)Honolulu Street Sediment (2004)
FloGard +Plus®
TSS Removal
Typical Urban Runoff Distribution*
*extrapolated from available field test data
020406080100
0 20 40 60 80 100 120 140
Flux (gpm/sq ft)
%
re
m
o
v
a
l
FloGard +Plus Linear (FloGard +Plus)
Testing Agency % TSS Removal
% Oil & Grease
Removal
UCLA 80*70-80
U of AucklandTonkin & Taylor Ltd
(for City of Auck-
land)
95**
78-86***
U of Hawaii (for Cityof Honolulu)
80***
FloGard +PLUS
®Test Results Summary
*Sand larger than ~575 µm**Sand distribution ~100-1000 µm***Local street sweep material (distribution consistent with NURP)
Units are sized to fit most common styles of drainage inlet grate frames or inlet widths. Rated filtered flow capacities for each model typically
exceed the required “first flush” treatment flow
rate, and account for reduction in capacity as the
unit accumulates suspended pollutants. Rated bypass capacity for each model also typically exceeds the inlet capacity of the catch basin.
FloGard +PLUS® Catch Basin Insert Filter is an efficient inlet prefilter designed to remove suspended sediment and floatable trash and hydrocarbons from stormwater runoff in new or retrofit applications. It is ideally suited
for removal of primary pollutants from paved surfaces
in commercial and residential areas, or may form part of a treatment train. The device features a unique dual-bypass design, durable components, flexible installation options and easy maintenance access.
Testing Agency %TSS Removal
% Oil & Grease
Removal
UCLA 80*70-80
U of Auckland
Tonkin & Taylor LTD
(City of Auckland)
U of Hawaii
(City of Honolulu)80***
95**
78-86***
FloGard +PLUS® Test Results Summary
*Sand larger than ~ 575 um
**Sand distribution ~ 100-1000 um
***Local street sweep material (distribution consistent with NURP)
www.oldcastleinfrastructure.com | 800-579-8819
See product specifications for standard model details.
®
0 Oldcastle lnfrast~~S~!'.(
•
Owater
STANDARD
DEPTH
INLET ID
Inside
Dimension
(inch x inch)
GRADE OD
Outside
Dimension
(inch x inch)
TOTAL
BYPASS
CAPACITY
(cu. ft. / sec.)
SOLIDS
STORAGE
CAPACITY
(cu. ft.)
FILTERED
FLOW
(cu. ft. / sec.)
SHALLOW
DEPTH
SOLIDS
STORAGE
CAPACITY
(cu. ft.)
FILTERED
FLOW
(cu. ft. / sec.)
FGP-1633FGO 16 X 33 18 X 36 7.0 2.5 1.7 FGP-1633FGO8 1.4 1.1
FGP-1836FGO 18 X 36 18 X 40 6.9 2.3 1.6 FGP-1836FGO8 1.3 .9
FGP-2234FGO 22 X 34 24 X 36 8.1 3.6 2.1 FGP-2234FGO8 2.1 1.4
FGP-2436FGO 24 X 36 24 X 40 8.0 3.4 2.0 FGP-2436FGO8 1.95 1.15
STANDARD
DEPTH
INLET ID
Inside
Dimension
(inch x inch)
GRADE OD
Outside
Dimension
(inch x inch)
TOTAL
BYPASS
CAPACITY
(cu. ft. / sec.)
SOLIDS
STORAGE
CAPACITY
(cu. ft.)
FILTERED
FLOW
(cu. ft. / sec.)
SHALLOW
DEPTH
SOLIDS
STORAGE
CAPACITY
(cu. ft.)
FILTERED
FLOW
(cu. ft. / sec.)
FGP-12F 12 X 12 12 X 14 2.8 0.3 0.4 FGP-12F8 .15 .25
FGP-16F 16 X 16 16 X 19 4.7 0.8 0.7 FGP-16F8 .45 .4
FGP-18F 18 X 18 18 X 20 4.7 0.8 0.7 FGP-18F8 .45 .4
FGP-1836F 18 X 36 18 X 40 6.9 2.3 1.6 FGP-1836F8 1.3 .9
FGP-21F 22 X 22 22 X 24 6.1 2.2 1.5 FGP-21F8 1.25 .85
FGP-24F 24 X 24 24 X 27 6.1 2.2 1.5 FGP-24F8 1.25 .85
FGP-2436F 24 X 36 24 X 40 8.0 3.4 2.0 FGP-2436F8 1.95 1.15
FGP-2448F 24 X 48 24 X 48 9.3 4.4 2.4 FGP-2448F8 2.5 1.35
FGP-32F-TN 28 X 28 32 X 32 6.3 2.2 1.5 FGP-32F8-TN 1.25 .85
FGP-30F 30 X 30 30 X 34 8.1 3.6 2.0 FGP-30F8 2.05 1.15
FGP-36F 36 X 36 36 X 40 9.1 4.6 2.4 FGP-36F8 2.65 1.35
FGP-3648F 36 X 48 40 X 48 11.5 6.8 3.2 FGP-3648F8 3.9 1.85
FGP-48F 48 X 48 48 X 54 13.2 9.5 3.9 FGP-48F8 5.45 2.25
FGP-1633F 16 X 34 18 X 36 6.9 2.3 1.6 FGP-1633F8 1.3 .9
FGP-2234F 22 X 34 24 X 36 8.0 3.4 2.0 FGP-2234F8 1.95 1.15
STANDARD DEPTH
-20 Inches-
SHALLOW DEPTH
-12 Inches-
FloGard Combination Inlet
SPECIFIER CHART
STANDARD & SHALLOW
DEPTH
(Data in these columns is the same for
both STANDARD & SHALLOW versions)MODEL NO.MODEL NO.
FloGard Flat Grated Inlet
SPECIFIER CHART
STANDARD & SHALLOW
DEPTH
(Data in these columns is the same for
both STANDARD & SHALLOW versions)
STANDARD DEPTH
-20 Inches-
SHALLOW DEPTH
-12 Inches-
MODEL NO.MODEL NO.
U.S. PATENT #6,551,023 & 6,872,029
* MANY OTHER STANDARD & CUSTOM SIZES AND DEPTHS AVAILABLE UPON REQUEST.
. .
•
"ULTIMATE" BYPASS FEATURE
(LOUVERS & OPENINGS)
SEE DETAIL C
...
DEPlli
STANDARD = 20 INCHES
SHALLOW = 12 INCHES
*CUSTOM
DETAIL B
SECTION VIEW
FloGard" FILTER
-I NSTALLED-
"ULTIMATE" BYPASS FEATURE
(LOUVERS & OPENINGS)
DETAIL C
''ULTIMATE" BYPASS
FEATURE
BUILDINGSTRUCTURES
OUR MARKETS
TRANSPORTATION
WATER
ENERGYCOMMUNICATIONS
June 2019 v.1
www.oldcastleinfrastructure.com
800-579-8819
FLOGARD® CATCH BASININSERT FILTER
I : I
0 Oldcastle lnfrast~~S!~~f I
()water
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
ATTACHMENT 2
BACKUP FOR PDP HYDROMODIFICATION CONTROL MEASURES
[This is the cover sheet for Attachment 2.]
Indicate which Items are Included behind this cover sheet:
Attachment
Sequence
Contents Checklist
Attachment 2a Hydromodification Management
Exhibit (Required)
Included
Attachment 2b Management of Critical Coarse
Sediment Yield Areas (WMAA Exhibit
is required, additional analyses are
optional)
See Section 6.2 of the BMP Design
Manual.
Exhibit showing project drainage
boundaries marked on WMAA
Critical Coarse Sediment Yield
Area Map (Required)
Optional analyses for Critical Coarse
Sediment Yield Area Determination
6.2.1 Verification of Geomorphic
Landscape Units Onsite
6.2.2 Downstream Systems
Sensitivity to Coarse Sediment
6.2.3 Optional Additional Analysis
of Potential Critical Coarse
Sediment Yield Areas Onsite
Attachment 2c Geomorphic Assessment of Receiving
Channels (Optional)
See Section 6.3.4 of the BMP Design
Manual.
Not performed
Included
Attachment 2d Flow Control Facility Design and
Structural BMP Drawdown
Calculations (Required)
See Chapter 6 and Appendix G of the
BMP Design Manual
Included
N/A - project is HMP Exempt.
N/A - project is HMP Exempt.
ATTACHMENT 2b
Potential Critical Course Sediment Yield Areas
San Diego County
1000 ft
N
➤➤
N
Data CSUMB SFML, CA OPC
Data CSUMB SFML, CA OPC
Data CSUMB SFML, CA OPC
STORM WATER QUALITY MANAGEMENT PLAN JANURARY 2023
ATTACHMENT 3
Structural BMP Maintenance Information
Use this checklist to ensure the required information has been included in the Structural
BMP Maintenance Information Attachment:
Preliminary Design/Planning/CEQA level submittal:
Attachment 3 must identify:
Typical maintenance indicators and actions for proposed structural BMP(s) based
on Section 7.7 of the BMP Design Manual
Final Design level submittal:
Attachment 3 must identify:
Specific maintenance indicators and actions for proposed structural BMP(s). This
shall be based on Section 7.7 of the BMP Design Manual and enhanced to reflect
actual proposed components of the structural BMP(s)
How to access the structural BMP(s) to inspect and perform maintenance
Features that are provided to facilitate inspection (e.g., observation ports,
cleanouts, silt posts, or other features that allow the inspector to view necessary
components of the structural BMP and compare to maintenance thresholds)
Manufacturer and part number for proprietary parts of structural BMP(s) when
applicable
Maintenance thresholds for BMPs subject to siltation or heavy trash(e.g., silt level
posts or other markings shall be included in all BMP components that will trap and
store sediment, trash, and/or debris, so that the inspector may determine how full
the BMP is, and the maintenance personnel may determine where the bottom of
the BMP is . If required, posts or other markings shall be indicated and described
on structural BMP plans.)
Recommended equipment to perform maintenance
When applicable, necessary special training or certification requirements for
inspection and maintenance personnel such as confined space entry or
hazardous waste management