HomeMy WebLinkAboutPD 2023-0011; 2290 COSMOS: EXTERIOR IMPROVEMENTS; TRASH CAPTURE STORM WATER QUALITY MANAGEMENT PLAN; 2023-06-14
E-35A REV 08/22
Development Services
Land Development Engineering
1635 Faraday Avenue
442-339-2750
www.carlsbadca.gov
TRASH CAPTURE STORM WATER
QUALITY MANAGEMENT PLAN
(SWQMP) TEMPLATE
E-35A
(FOR STANDARD PROJECTS ONLY)
j
CITY OF CARLSBAD
TRASH CAPTURE
STORM WATER QUALITY MANAGEMENT PLAN (SWQMP)
FOR
2290 COSMOS CT: EXTERIOR IMPROVEMENTS
PROJECT ID PD2023-0011
DWG 286-6
GR No. 2023-0017
ENGINEER OF WORK:
______________________________________________
Jonathan Arenz, PE | RCE 75246
PREPARED FOR:
REEF
5935 DARWIN COURT
CARLSBAD, CA 92008
PREPARED BY:
COFFMAN ENGINEERS, INC.
1455 FRAZEE ROAD, STE 600
SAN DIEGO, CA 92108
(619) 232-4673
DATE:
JUNE 14, 2023
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 Trash Capture Structural BMPs
Attachment 1: Backup for Trash Capture BMPs
Attachment 1a: DMA Exhibit
Attachment 1b: Tabular Summary of DMAs
Attachment 1c: Trash Capture BMP Design Calculations
Attachment 2: Trash Capture BMP Maintenance Thresholds and Actions
Attachment 3: Single Sheet BMP (SSBMP) Exhibit
CERTIFICATION PAGE
Project Name: 2290 Cosmos Ct Exterior Improvements
Project ID: PD2023-0011
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.
_________________________ _R.C.E. 75246, Exp. 12/31/2023
Engineer of Work's Signature, PE Number & Expiration Date
Jonathan Arenz, P.E._______________________________________
Print Name
Coffman Engineers, Inc._____________________________________
Company
06/14/2023__________________
Date
No. 75246
Exp. 12/31/23
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PROJECT VICINITY MAP
Page 1 of 4 REV 07/22 E-34
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:
Development Services
Land Development Engineering
1635 Faraday Avenue 442-339-2750 www.carlsbadca.gov
STORM WATER STANDARDS
QUESTIONNAIRE E-34
INSTRUCTIONS:
Reef Exterior Improvements
2290 Cosmos Court, Carlsbad, CA 92011
213-050-44
x
9,485 0.22
2,818 0.06
E-34 Page 2 of 4 REV 07/22
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
x
x
x
E-34 Page 3 of 4 REV 07/22
* 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.
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.
x
x
x
x
x
x
x
x
x
x
x
E-34 Page 4 of 4 REV 07/22
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?
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. 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. As part of these requirements, I will submit a “Standard Project
Requirement Checklist Form E-36” and incorporate low impact development strategies throughout my project. 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:
x
x
x
MICHAEL MCDONALD, ID STUDIOS PROJECT MANAGER
04.03.2023
SITE INFORMATION CHECKLIST
Project Summary Information
Project Name Reef Exterior Improvements
Project ID PE2-88-06
Project Address 2290 Cosmos Ct, Carlsbad, CA 92011
Assessor's Parcel Number(s) (APN(s)) 213-050-44
Project Watershed (Hydrologic Unit) Carlsbad 904
Parcel Area
2.76 Acres (120,114 Square Feet)
Description of Existing Site Condition and Drainage Patterns
Select applicable Land Use Category:
High Density Residential
R-23 (15-23 du/ac)
R-30 (23-30 du/ac)
Industrial
PI (Planned Industrial)
Commercial
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)
Mixed Urban
PI/O (Planned Industrial/Office)
Public Transportation Stations
Description / Additional Information:
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 existing site is a developed 2-story office space and parking lot which generally drains north
and south offsite. Drainage conveyance in the existing condition is urban. Curb gutters collect
runoff from impervious sidewalks and parking spaces.
Runoff to the north, delineated by DMA-1 in Attachment 1, is collected by gutters throughout the
parking space and drained down a slope via a Type “D” ABM Ditch which feeds into a 33” RCP
storm drain.
DMA-2 in Attachment 1 delineates runoff which is collected from offsite, through an existing
Type “D” ABM ditch, and into an existing 6” Type G curb and gutter. This runoff drains out into
an existing catch basin with a combined grate inlet and Type “C” curb inlet. This catch basin
connects to an existing 18” storm drain which leads offsite.
Runoff collected from impervious asphalt and hardscape in the west region of the site,
delineated by DMA-3 in Attachment 1, drains out to a curb and gutter along Cosmos Court
through a PCC ditch.
Runoff delineated by DMA-4 in Attachment 1 is collected from impervious asphalt parking and
hardscape in the southeast region of the site into an existing valley gutter. This gutter drains out
offsite and into an existing curb and gutter along the adjacent right-of-way on Cosmos Court.
There is no storm drain in this adjacent right-of-way.
x
Description of Proposed Site Development and Drainage Patterns
Project Description / Proposed Land Use and/or Activities:
The project proposes exterior improvements for one tenant on an existing 2-story office building.
Exterior improvements will include a new exterior deck, new landscaping, and new hardscaping.
Does the project include grading and changes to site topography?
Yes
No
Description / Additional Information:
Does the project include changes to site drainage (e.g., installation of new storm water
conveyance systems)?
Yes
No
Description / Additional Information:
x
x
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.
[Insert City’s Standard Project Requirement Checklist Form E-36 (here)]
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
Reef Exterior Improvements
x x
x
x
x
x
x
PD2023-0011
286-6
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
x
x
X
X
X
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
x
x
x
x
x
x
x
x
X
X
X
X
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:
MICHAEL MCDONALD, PROJECT MANAGER
12.07.2022
SUMMARY OF TRASH CAPTURE BMPS
Trash Capture BMPs
All projects subject to trash capture requirements must implement trash capture BMPs (see
Chapter 4 of the BMP Design Manual). Selection of trash capture BMPs must be based on the
selection process described in Chapter 4.
Trash capture 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 trash capture BMPs (see Section 1.12 of the BMP Design Manual). Trash capture 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 trash capture BMP
implementation at the project site in the box below. Then complete the trash capture BMP
summary information sheet for each trash capture BMP within the project (copy the BMP
summary information page as many times as needed to provide summary information for each
trash capture BMP).
Describe the general strategy for trash capture BMP implementation at the site. This information
must describe how the steps for selecting and designing trash capture BMPs presented in
Section 4.4 of the BMP Design Manual were followed, and the results (type of BMPs selected).
There are existing trash capture screen devices at the 3 points of drainage from the site. The
make and model of these existing trash capture screens is unknown. It is assumed that the
existing screens installed at all three points of drainage do not meet the trash capture
requirements per Section 4.4.2.2 of the BMP Design Manual.
A CASQA-certified, custom G2 CPS-Mod (3U-48x24Vditch) screen will be installed at the outlet
of the Type “D” ABM Ditch serving DMA-1, supplemented by a G2 FXSS screen that is to
replace the existing trash capture screen installed currently. The G2 CPS-Mod will be custom
designed to shape the screen along the bottom of the existing ditch for full capture. The G2
FXSS (W10) screen will capture larger debris with ¾” holes, allowing the G2 CPS-Mod to be
more effective at capturing smaller debris.
A CASQA-certified, G2 GITS Grated Inlet Trash Screen (40x24-V) will be installed at the grated
inlet serving the catch basin for DMA-2. Additionally, a G2 FXSS W3.5 screen with ¾”
perforated holes will replace the existing screen installed at the Type “C” curb inlet. This
ensures full capture of trash before flowing into the catch basin and existing storm drain below.
A CASQA-certified, custom G2 CPS-Mod (3U-48x24Vditch) screen will be installed at the
entrance to the PCC ditch serving DMA-3. The custom CPS-Mod will replace the existing
screen and is designed to ensure full capture of trash at this drainage point.
[Continued from previous page – This page is reserved for continuation of description of general
strategy for trash capture BMP implementation at the site.]
A trash capture BMP was not deemed to be feasible for DMA-4 per Chapter 4 of the BMP
Design Manual. Runoff collected into DMA-4 drains directly offsite into a curb and gutter in
adjacent right-of-way. There are no storm drains within the property boundary that serve runoff
collected from this DMA. Thus, there is no feasible location within the property limits to install a
trash capture device serving DMA-4.
Trash Capture BMP Summary Information
BMP ID No. Type of Trash Capture BMP Permit No. Drawing No.
1
Custom G2 CPS-Mod
(3U-48x24Vditch) and G2 FXSS
(W3.5) Screen
286-6
2
G2 GITS Grated Inlet Trash Screen
(40x24-V) and G2 FXSS Fixed Curb-
Opening Screen (W10)
286-6
3 Custom G2 CPS-Mod
(3U-48x24Vditch) 286-6
ATTACHMENT 1
BACKUP FOR TRASH CAPTURE 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 Trash Capture BMP Design
Worksheets / Calculations (Required)
Refer to Appendices J of the BMP
Design Manual for trash capture BMP
design guidelines
Included
x
x
x
*Trash capture devices sized
by manufacturer; certified for
full capture per CASQA
public list
Use this checklist to ensure the required information has been included on the DMA
Exhibit:
The DMA Exhibit must identify:
Site topography and impervious areas
Site drainage network and connections to drainage offsite
Proposed grading (if applicable)
Drainage management area (DMA) boundaries, DMA ID numbers, and DMA areas (square
footage or acreage)
Trash Capture BMPs (identify location and type of BMP)
x
x
x
x
SET NAIL PINK257.12
SET NAIL PINK254.11
SCR X TC253.02
SET NAIL PINK255.48
TC B254.55FL B254.16
LIP B254.21
W B254.58
W254.53
TC254.49FL254.04
LIP254.10
LIP254.04
FL253.98TC254.44
W254.55
W254.56
TC254.39
FL253.91
LIP254.01
LIP253.94
FL253.84TC254.29
W254.57
W254.58
TC254.08FL253.62
LIP253.74
LIP253.52
FL253.40TC253.86
W254.55
W254.51 W253.86
TC253.67FL253.22
LIP B253.36
LIP253.20
FL253.06TC253.51
W253.93
W253.96
TC253.12FL252.65
LIP252.75
TC B253.82BL B253.40
BL253.80TC254.17
TC254.26
TC254.26
BL253.90
BL253.92
FH254.27
TC254.25TC254.24
TC254.18
BL253.98BL254.00
BL253.92
WV254.35
TC CLO253.97BL253.65
ERSR254.09P B253.73
P254.32
P B253.84
P254.52
P254.68
P253.99
P B254.04
P254.72
P B254.66
P254.11
P B254.14
P254.56
P B254.46
P254.16
P B254.19
P254.21
TC B256.01BL B255.73BLDG B255.72
TC255.61BL255.35
BL255.18TC255.49
TC255.38BL255.05
BL254.89TC255.34 TC255.62BL254.94
BL B255.76 BL@DOOR255.91 BL255.92 BL@DOOR255.91 BL@CL3.0DOOR255.92 BL255.88 BL255.50 BL254.92TC B255.16
TC255.08
TC255.07
TC255.03
BL254.86
BL254.81
BL254.76
G254.38
G254.64
G254.93
G255.11
G255.13
G254.82
G254.57
G254.37
BL254.47TC254.89
G@BLDG255.09
T0.9D255.11
T0.9D255.26
TC254.71
TC254.71BL254.42C B254.40
C254.34
C254.39BL B254.36
HRAIL B254.36
C255.21HRAIL255.21TC B254.99BL254.66
BL1 B254.99 BL1255.08
BL1255.05 BL1255.11
BL1255.06 BL1255.15
BL1255.05
C255.81
C255.78 C255.84
C255.84 C255.36
C255.29 C255.29
HRAIL255.82
HRAIL255.80 HRAIL255.84
HRAIL255.85 HRAIL255.37
HRAIL B254.41
C1 B254.42
C1254.42
C1254.96
C1255.22HRAIL255.22 HRAIL255.26
HRAIL255.91BL B255.91
BL255.82
BL B255.28 BL255.92 BL@CL3.0DOOR255.92 BL255.90
C1 AP255.37 C1255.45
C255.44
T1.2D255.43
C255.37
C1255.42
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T1.0D255.33
C255.58
C1255.65
G255.54
C255.58
C1255.62
C1255.52C1255.47
W B255.60
W255.63
W255.77
W BC255.69
W255.63
W255.56
W255.59 STAIR B255.62STAIR256.60STAIR257.10
STAIR257.13STAIR256.60
STAIR CLO256.08
WALL257.10C B257.07
C256.98
C256.03
C254.56
C B254.60
C255.81
C257.06WALL B257.09WALL257.11
WALL BC257.22
WALL257.27
WALL257.17
WALL257.14 HRAIL B257.12
HRAIL255.52WALL255.52
WALL255.59
HRAIL B255.58
HRAIL257.11
BL B256.69
BL256.07
BL255.43BL255.37
BL255.17
BL255.37
BL255.74BL255.70
BL255.43
BL B255.43
BL255.61
BL255.88
BL255.97 BL255.86
BL256.47
BLDG255.54
G255.40
G255.46
G255.38
T1.1D255.78
T0.8D256.19
T0.4D255.13
T0.4D254.70
P B253.92
P254.24
P B254.18
P253.91
P B253.96
P254.22
P B254.28
P253.96
P B254.00
P254.33
P B254.28
P254.02
P B254.08
P254.38
P B254.33
P254.11
P B254.10
P254.37
P B254.45
P254.14
P B254.52
P254.14
P254.21
P254.68
BL B254.65TC B254.99
TC255.02BL254.69
BL BC254.52TC BC254.92
TC254.76BL254.36
BL254.29TC254.68
TC254.65BL254.26
TC LO254.71BL LO254.33
BL254.16TC254.62
TC254.59BL254.22
BL BC254.00
TC BC254.25
TC254.17BL253.99
BL253.85TC254.26
TC254.52BL254.09FL B254.10
TC1 B254.61BL B254.33 TC1254.92 TC1254.93
TC1 BC254.90
BL254.58 BL254.58
BL BC254.60
BL254.34TC1254.68
TC1254.54BL254.16BL254.06
BL253.97
BL CLO253.86
TC1254.29
TC1254.24
TC1 CLO254.30
G254.90
LIP B254.24LIP254.21
LIP254.33FL254.27TC254.66
TC254.80FL254.39 LIP254.46
LIP254.60FL254.49TC254.92
TC255.05FL254.60 LIP254.71
LIP254.82FL254.77TC255.20T0.7D255.84
T0.6D255.54
G255.48
T0.5D255.64
T0.6D255.47
G255.60
T0.9D255.72
P B254.29 P254.75
P B254.82P254.31
P B254.35 P254.93
P B255.01P254.38
P B254.42
P255.07
P B255.13P254.48
P B254.53
P255.18
P B255.24P254.59
P B254.62 P255.28
P B255.27P254.66
P B254.69 P255.30
P B255.33P254.75
P B254.76 P255.40
P B255.43P254.82
P B254.90 P255.44
P B256.72
P B256.66
P B256.60
P B256.54 P257.23TC B257.59BL B257.24
P B257.20P256.51
P B256.45 P257.14
P B257.06BL257.06TC257.43P256.37
P B256.28 P256.99
P B256.92P256.22
P B256.15 P256.86BL256.88TC257.25
P B256.83P256.12
P B256.11 P256.78
TC257.13BL256.75P B256.75P256.11
P B256.06 P256.69
P B256.65P255.99
P B255.96 P256.61BL256.62TC257.04
P B256.60P255.96
P B255.89 P256.58
TC256.94BL256.54P B256.53P255.84
P B255.80 P256.52TC BC256.92BL BC256.54
BL256.31TC256.68
TC BC256.47BL BC256.17
BL255.90TC256.24
TC BC255.98BL BC255.59
BL255.60TC255.83
TC255.70BL255.37
LP255.28
T0.7D255.10
TC BC255.12BL BC254.84
BL254.78TC255.05
TC254.93BL254.67WALL B254.63
BOL254.64
C B254.45
C254.37
BOL254.40
WALL255.26
WALL254.99
WALL254.54TC B BC254.94FL B BC254.57FL254.54TC254.89
TC254.86FL254.47
FL254.20TC254.58
TC254.61FL254.16
LIP B254.23
LIP253.91
FL253.85TC254.33
LIP253.85
LIP253.81
LIP253.83
BL B253.82
BL253.78
LIP B253.89
BL253.77
LIP253.81
BL253.79
BL253.83
LIP253.93
FL253.81TC254.32
C B253.88
C253.87C253.90C253.92
C253.96
C253.96
C253.90
C253.85
LIP253.74
FL253.62TC254.07
P B253.76
P253.77
P B253.84
P253.94
P B253.94
P253.78
P B254.19
P254.13
LIP253.68
FL253.61TC254.06
TC253.78FL253.33
LIP253.46
LIP BC253.49
FL BC253.39TC BC253.84
TC253.82FL253.38
LIP253.51
LIP253.31
FL253.22TC253.68TC253.68TC253.68TC253.66
TC253.69
TC253.70TC253.71
LIP253.38
MH253.15 FL253.22FL253.24FL253.21FL253.18
FL253.19
FL253.22
FL253.28
TC253.24FL252.74
LIP252.80
LIP252.65
FL252.55TC253.04
BOL252.94
LIP252.71
P B253.29
P253.90
P B253.85
P253.17
P B252.84
P253.71
P B253.69
P252.79
P B253.23
P253.65
P B253.67
P253.37
P B253.38
P253.74
P B253.72
P253.53
P B253.56
P253.75
P B253.56
P253.73
P253.76
P253.50
P B253.68
P253.76
P B253.75
P253.71
P B255.01
P B255.34
P B255.55
P B255.70
TC B258.15BL B257.81
BL257.42TC257.78TC BC257.16BL BC256.88
TC257.00BL256.74
BL256.88TC257.15 TC257.82BL257.44
BL257.52TC257.90TC257.32
TC257.33
TC257.36
BL257.05
BL257.01
BL257.11
P B256.75
P B256.68
P B256.72
TC257.86BL257.51
FH258.33
TC258.21
TC257.83
TC257.85BL257.78WALL B258.31
WALL259.00BL257.75
BL257.76WALL259.65
WALL260.32
WALL260.32
WALL260.34
WALL259.68
WALL259.04
WALL258.30
BL257.80
BL257.87
BL257.93
BL257.94
BL257.96
BL257.98TC B258.32
TC258.22BL257.82
BL257.70TC258.07
TC257.43BL257.40LIP B257.36
TC B257.94FL B257.50
FL257.27TC257.71TC257.43FL257.02
LIP257.09LIP256.68
FL256.62
TC257.05TC BC256.72FL256.27
LIP256.33
TC256.65FL256.12
FL255.60 TC256.35TC256.46
FL255.67
FL255.60FL255.64
FL255.81 FL255.80
TC B256.56
SDIN B255.78 SDIN255.72
SDIN255.56SDIN CLO255.64
FL256.15LIP256.15TC256.54TC256.49BL B256.21
BL256.19TC256.50
TC256.43TC256.41
BL256.17
BL256.16BL256.23 P B256.28 WV256.22 WV256.28
P B256.57 P B256.69 P B256.78 P B256.89 P B257.07 P B257.20 P B257.47
G257.31
LIP B256.86
LIP256.87
LIP256.68
LIP256.40
LIP256.28
LIP256.13BL256.17BL256.00TC256.40TC256.44
SI256.42
SI256.54
TC256.33TC256.36BL255.96BL255.92
BL B256.10
LIP B256.12
LIP256.29
BL256.21
BL256.27
LIP256.40
LIP256.53
BL256.45
BL256.61
LIP256.74 BL256.85
P B256.73
P B256.17
HC255.97
P B255.74 P255.95
P255.86P255.59
HC255.80
HC255.68
P B255.74
P B255.30 P255.64
P255.58P255.28
HC255.49
P B255.52
P B255.66
P B255.61
P B255.53
P B255.47
TC B255.30FL B254.87 LIP B254.93
C B255.96
G255.83
C255.92HRAIL B255.95 HRAIL255.92
C255.67TC255.37FL254.97 LIP254.98
LIP255.25FL255.21TC255.63TC255.60C255.28C255.26HRAIL255.32
SCO255.66
BL B255.95
BL255.94
BL255.76
BL255.74
BL255.40
BL255.58BLDG255.59C B255.59
C255.59
BL B255.26
BL255.39 LIP255.39
LIP255.53BL255.53
BL255.65 LIP255.70BL255.69
BL255.56
BL255.44
BL255.35 BL255.29
BL B255.68BL255.68WALL B255.81
WALL256.99
WALL257.13 WALL257.05 WALL256.20
SI257.25
BL255.81 BL255.76FL B255.75TC B256.15TC256.14 LIP255.82
LIP256.17
TC256.63FL256.14 FL256.17 FL256.50 FL257.04TC257.46
TC257.54
TC BC257.57
FL257.19
FL BC257.20
FL256.96TC257.22
TC257.02FL256.83
FL256.72TC256.83
T1.2D257.65
TC256.75
FL256.57FL256.56
TC256.77
TC256.79FL256.56
FL256.64TC257.00TC256.91FL256.58
FL BC256.43TC BC256.79
TC256.82FL256.42
FL256.40
TC256.81
TC256.88
FL256.52FL256.55
TC256.91
TC256.71
TC256.70
TC256.70
FL256.40
FL256.41
FL256.35FL BC256.35
TC BC256.72
TC256.61
FL256.14
FL255.75TC256.22
T1.3D258.18
T1.3D256.78
T1.4D257.87
T1.0D257.27
C255.64C255.59C255.74
C255.76
DINLET255.26 DINLET255.46
C B256.82
C256.84
C256.86
C256.87
C256.83
C256.90
C257.05
C256.96
C256.98
C256.93
C256.73
C256.65
C256.52
C256.41
C256.19
C256.16
C255.97
C255.66
C255.63 C255.56 C255.65 C255.67
C255.68
G256.51
G256.36
C B256.72
C256.79
C256.93
C256.89
BOL256.88
BOL256.39
BOL255.94
C255.78 BL B255.79 BL255.69 BL255.65
G@CL6.0DOOR256.04 BLDG &7.0OSAP255.82
BLDG &6.1OSAP255.82
BLDG255.81
BL B256.64
BL257.01
BL257.08
BL257.42
BL257.84
TC B BC256.11FL B BC255.63
LIP B BC255.71
LIP255.37
FL255.24TC255.71
TC255.55FL255.04
LIP255.13
LIP BC254.20
FL BC254.07TC BC254.58
TC254.36FL253.86
LIP253.99
LIP253.67
FL253.57TC254.07TC253.00FL252.50
LIP252.63LIP252.20
FL252.08TC BC252.63
TC252.66
TC252.86
BL B252.08BL BC252.14
BL252.19
BL252.49C B252.48C251.64
FL250.92
LIP251.01LIP249.43
FL249.33
C250.72
BL252.50TC252.81
TC252.87 TC252.87
BL252.44
BL252.49
SI253.71
T1.1D253.99
G254.36
TC253.13BL252.78
BL252.29
BL252.19TC252.54
FL B252.16
LIP B252.29LIP251.63
FL251.57
BL251.63TC251.93TC251.88
TC251.83
BL251.56
BL251.56
LIP251.00
FL250.95FL250.35
LIP250.46LIP249.66
LIP B250.48
LIP251.02 LIP251.62
BL251.60TC251.84
TC251.92 TC251.98
BL251.66 BL251.75
C B251.84
C252.60
C252.65TC252.64BL252.30
BL252.78TC253.11TC252.56TC252.53
TC252.49
BL252.22BL252.14
BL252.14
BL252.25
BL252.32 BL252.39
TC252.57
TC252.60 TC252.63 TC253.48BL253.15
TC B250.26BL B249.77BL249.91 BL BC250.54TC BC250.79
TC250.90BL250.66
BL250.45TC250.82TC CLO250.25
BL CLO249.68TC B250.08FL B249.63
LIP B249.62
LIP249.36
LIP249.41TC249.71FL249.26
FL249.22C B249.67
C248.02
FL247.91 C B248.36
C249.05
C249.91ERSR249.77
C249.85BL B249.36BL249.43TC B249.86 TC250.83
TC250.97
TC251.02
FL250.50
FL250.62
FL250.65
FL BC250.73TC BC251.12
TC250.50FL249.98
FL249.30TC249.79
LIP B249.41LIP247.69
FL247.55 TC248.33TC247.91TC248.04
G251.01 G251.36 G251.10
SCO253.01
WMH254.60
C B254.47
C254.56
C254.57C CLO254.52
BL B254.29
BL253.77 BL253.93
BL254.39
FDVA254.86
FDCON255.10CO255.13
CO254.67
UNKNOWN255.65
ICV255.33
RWTR PIPE255.14
RWTR PIPE255.03
RWTR MTR254.03WMTR253.64
WTR PIPE254.51
WTR PIPE254.56
G255.68
G255.17
T1.5D256.80
G255.86
LP254.54
T1.3D255.84
G256.60
G255.86
G255.15
T1.1D255.64
G256.06
G256.98
G257.02 G256.51 G255.57
G256.08
ICV256.06
C1 B255.79
C B255.98C256.13
C1255.98
BLDG256.15
C1255.97
C256.02
G255.81
C255.53
C1255.45C1254.77
C254.81
G255.80G255.74
G255.47
C254.16
C1254.12C1253.56
C253.54
G254.49
G255.22WV255.18G254.46
G254.40
C252.81
C1252.82C1252.56
C253.20BLDG CLO253.20
ICV253.46
P B251.81
P B251.90P B250.59
N67°23'
1
7
"
E
2
1
2
.
5
2
'
Δ=21°13'57" L=185.29'R=500.00'
N0
0
°
3
5
'
4
4
"
E
2
3
8
.
2
1
'
N89°24'16"W 90.41'
Δ=22°25'28" L=11.35'R=29.00'
N68°09'
4
2
"
E
5
0
.
0
0
'
Δ
=
1
6
2°4
8'5
6" L
=1
02.30'
R
=
3
6.
0
0'
N
3
9
°
0
0
'
5
4
"
W
3
8
.
0
0
'
N84°32'35"W 167.33'
N0
0
°
3
4
'
0
4
"
E
4
4
5
.
3
1
'
4.948% SLOPE
4.9
4
8
%
S
L
O
P
E
1. THESE BMPS ARE MANDATORY TO BE INSTALLED PER MANUFACTURER'S
RECOMMENDATIONS AND/OR THESE PLANS.
2. NO CHANGES TO THE PROPOSED BMPS ON THIS SHEET WITHOUT PRIOR
APPROVAL FROM THE CITY ENGINEER.
3. NO SUBSTITUTIONS TO THE MATERIAL OR TYPES OR PLANTING TYPES
WITHOUT PRIOR APPROVAL FROM THE CITY ENGINEER.
4. NO OCCUPANCY WILL BE GRANTED UNTIL THE CITY INSPECTION STAFF
HAS INSPECTED THIS PROJECT FOR APPROPRIATE BMP CONSTRUCTION
AND INSTALLATION.
BMP NOTES:
PARTY RESPONSIBLE FOR MAINTENANCE:
PLAN PREPARED BY:
NAME
ADDRESS
PHONE NO.
CERTIFICATION
COMPANY
5. REFER TO MAINTENANCE AGREEMENT DOCUMENT.
6. SEE PROJECT SWQMP FOR ADDITIONAL INFORMATION.
SIGNATURE
BMP CONSTRUCTION AND INSPECTION NOTES:
THE EOW WILL VERIFY THAT PERMANENT BMPS ARE CONSTRUCTED AND
OPERATING IN COMPLIANCE WITH THE APPLICABLE REQUIREMENTS.
PRIOR TO OCCUPANCY THE EOW MUST PROVIDE:
1.PHOTOGRAPHS OF THE INSTALLATION OF PERMANENT BMPS
PRIOR TO CONSTRUCTION, DURING CONSTRUCTION, AND AT FINAL
INSTALLATION.
2.A WET STAMPED LETTER VERIFYING THAT PERMANENT BMPS ARE
CONSTRUCTED AND OPERATING PER THE REQUIREMENTS OF THE
APPROVED PLANS.
3.PHOTOGRAPHS TO VERIFY THAT PERMANENT WATER QUALITY
TREATMENT SIGNAGE HAS BEEN INSTALLED.
PRIOR TO RELEASE OF SECURITIES, THE DEVELOPER IS RESPONSIBLE
FOR ENSURING THE PERMANENT BMPS HAVE NOT BEEN REMOVED OR
MODIFIED BY THE NEW HOMEOWNER OR HOA WITHOUT THE APPROVAL
OF THE CITY ENGINEER.
REV. 5/2021
40202010
FEETSCALE:
0
1 INCH = 20
JON ARENZ, P.E.
COFFMAN ENGINEERS, INC.
1455 FRAZEE ROAD, STE 600
SAN DIEGO, CA 92108
(619) 232-4673
2
1
3
DMA-1
0.76 AC
DMA-2
0.02 AC
DMA-3
0.41 AC
ATTACHMENT 1.0
R.C.E. 75246
www.coffman.com
ph 619.232.4673
1455 Frazee Rd., Suite 600
San Diego, CA 92108
ph 619.232.4673
RUNOFF FROM OFFSITE
ALONG EXISTING ABM DITCH
RUNOFF COLLECTED INTO
EXISTING VALLEY GUTTER
AND DRAINS OFFSITE INTO
CURB AND GUTTER ALONG
COSMOS CT
RUNOFF DRAINS ALONG PCC
DITCH OUT THROUGH CURB
OPENING TO OFFSITE GUTTER
ALONG COSMOS CT
RUNOFF DRAINS THROUGH ABM DITCH
CONNECTED TO AN EXISTING ABM
DITCH AND 33" RCP STORM DRAIN
LEGEND
PROPERTY BOUNDARY
FLOW LINES
DMA BOUNDARY
EXISTING 12' SEWER
GRATE AND CURB INLETS
CONNECT TO EXISTING 18"
STORM DRAIN OFFSITE
10
BMP TYPEBMP ID #SYMBOL CASQA NO.DRAWING NO.SHEET NO.(S)MAINTENANCE
FREQUENCY
TRASH CAPTURE BMP TABLE
INSPECTION
FREQUENCYQUANTITY
TRASH CAPTURE BMPs
1 EA.
AS NEEDED
286-6
286-6
286-6
3
3
3
1
2
3
1 EA.
1 EA.
AS NEEDED
AS NEEDED
4 TIMES PER YEAR
G2 GITS GRATED
INLET SCREEN
(40X24-V) AND G2
FXSS W10 SCREEN
G2 CUSTOM
CPS-MOD
(3U-48X24V)
G2 CUSTOM
CPS-MOD
(3U-48X24V) AND G2
FXSS W3.5 SCREEN
10
10
10
PD2023-0011 286-6
DMA SUMMARY
DMA ID AREA (AC)DMA TYPE
1 0.760 D - TRASH CAPTURE BMP
2 0.020 D - TRASH CAPTURE BMP
3 0.405 D - TRASH CAPTURE BMP
4 0.177
D - TRASH CAPTURE BMP NOT
FEASIBLE WITHIN PROPERTY
LIMITS - DRAINS OFFSITE, NO
STORM DRAIN IN ADJACENT
RIGHT-OF-WAY
NAME
ADDRESS
PHONE NO.
CONTACT
HAZARD JR. ENTERPRISES, LP
10951 SORRENTO VALLEY RD., #2A
SAN DIEGO, CA 92121
(858) 200-4273
JPAESKE@CFISANDIEGO.COM
4 TIMES PER YEAR
4 TIMES PER YEAR
DMA-4
0.18 AC
No. 75246
Exp. 12/31/23
S
TATE OF CA L I F O R NIA
REGISTER E D P R O FESSIONAL
E
N
G
I
N
E
ERJ
O
NATH A N R ICHAR
D
A
R
E
NZ
C I V I L
Outlet
Pipe
G2 Construction, Inc.
CPS-Mod™-Custom for V-Ditch
Patented
Certified FULL CAPTURE SYSTEM
Model: CPS-Mod-Custom 3U-48x24Vditch
Custom fitted screen made from 304
Stainless Steel, 14 gauge, with FCS
compliant 5mm openings.
Designed for Coffman Engineering, Inc.
Project in Carlsbad, CA
EHT 5/11/2023
To order, email info@g2construction.com
G2 Construction, Inc.
TMGITS Full Capture System
Grated Inlet Trash Screen
Patent Pending
Full Capture System for
Drop Inlets with grate
covers
Vector Access Port
Project: CITY OF FULLERTON PROJECT FY 2022/2023 Drawing not to scale, 01/26/2023
1 3
4
304 SS - 16 gauge Rim Assembly 304 SS 14 gauge, 5mm perforated material
304 SS solid round bar 1/4" dia. used to trim
off top of basket. Makes for no sharp edge.2 304 SS Solid round bar 14" dia. , each baskets
has 6 support members.
PAGE 1 of 5
1
2
3
4
Bypass
Port Door 4" x 7" clear
Port Door
cover slides
back and forth
from under
GITS rim.
Door Stop
34" tall open &
close tab 2.5" in
length, part of
hatch cover
Attaches to
bottom of rim.
4"7"
ISO VIEW
VECTOR ACCESS PORT DETAIL
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G2 Construction, Inc.
TMGITS Full Capture System
Grated Inlet Trash Screen
Patent Pending
Full Capture System for
Drop Inlets with grate
covers
Project: CITY OF FULLERTON PROJECT FY 2022/2023
Drawing not to scale, 01/26/2023
1 3
4
304 SS - 16 gauge Rim Assembly 304 SS 14 gauge, 5mm perforated material
304 SS solid round bar 1/4" dia. used to trim
off top of basket. Makes for no sharp edge.2 304 SS Solid round bar 14" dia. , each baskets
has 6 support members.
PAGE 2 of 5
GRATE1
4
2
3
GITS MODELS:
40X24, 20X25, 40X25.5
Abbr.
Lr.
Wr.
Lr. Open
Wr. Open
VAP
Hg.
Hs
Hbypass
Hr
Ls
Ws
Cw
Cbot
Description
Length of rim
Width of rim
Length of rim opening
Width of rim opening
Vector Access Port
Total height of GITS = Hs
+ Hbypass + Hr
Height of Screen basket
Height of Bypass
Height of Rim
Length of Screen basket
(avg.)
GITS 5 mm Filter ( SQFT)
Clearance to Inlet Walls
Clearance to Inlet Bottom
Width of Screen basket
(avg.)
GITS Basket Volume
(Cu. Ft.)
Typical
(inches)
Measurements
Max.
(inches)
Min.
(inches)
39.25
23.75
29.25
11.25
With
VAP
23
14
6
3
30.75
12.75
3.5
6
8.68
3.2
40 38
26 22
30 23
16 11
With
VAP
Without
VAP
29.5 14.5
18 8
8 4
3.5 2.5
31.5 24.5
17.5 12.5
12.51 4.30
5.7 1.4
8 2
na 4
Lr
Length of Rim
Hr
Hg
Heigth
of GITS
Hs
Height of
Screen
H bypass
Ls
Length of
Screen Cbot
Cw
Lr
Length of Rim opening
STREET
SIDE
EXIT
PIPE
GITS SIZING
TABLE
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Right Side View with 5" Stairs on Street SideTop View
G2 Construction, Inc.
TMGITS Full Capture System
Grated Inlet Trash Screen
Patent Pending
Project: CITY OF FULLERTON PROJECT FY 2022/2023
Drawing not to scale, 01/26/2023
1 3
4
304 SS - 16 gauge Rim Assembly 304 SS 14 gauge, 5mm perforated material
304 SS solid round bar 1/4" dia. used to trim
off top of basket. Makes for no sharp edge.2 304 SS Solid round bar 14" dia. , each baskets
has 6 support members.
Full Capture System for
Drop Inlets with grate
covers
GRATE
VECTOR
PORT 4"
X 7"
STREET
SIDE
CURB
SIDE
EXIT
PIPE
CB
STEP
CB
STEP
Vector Access
Port
Iso View
1
4
1
1
2
3
3
PAGE 3 of 5
Vector Access Port
4" X 7"
MODEL:
40"x24", 40"x25", 40"x25.5", 40x26"
Design:
- Standard depth 14" basket screen
- Standard 6" bypass
- Vector Port
- No Steps; Steps
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Vector Access
Port = 3" x 7"
1
Right Side View No StairsTop View
G2 Construction, Inc.
TMGITS Full Capture System
Grated Inlet Trash Screen Model : 19-1/2" x 35"
Patent Pending
Project: CITY OF FULLERTON PROJECT FY 2022/2023
1 3
4
304 SS - 16 gauge Rim Assembly 304 SS 14 gauge, 5mm perforated material
304 SS solid round bar 1/4" dia. used to trim
off top of basket. Makes for no sharp edge.2 304 SS Solid round bar 14" dia. , each baskets
has 6 support members.
Full Capture System for
Drop Inlets with grate
covers 19-1/2" x 35"
Iso View
1
2
3
4
1
3
GRATE
2
Vector Access
Port = 3" x 7"
Vector Access
Port = 3" x 7"
STREET
SIDE
EXIT
PIPE
Drawing not to scale, 01/26/2023
PAGE 4 of 5
MODEL: 35" X 19.5"
Design:
- Standard depth 14" basket screen
- Standard 6" bypass
- Vector Port
- No Steps; Steps
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End ViewSide View
G2 Construction, Inc.
TMGITS Full Capture System
Grated Inlet Trash Screen
Patent Pending
Model : LowPro with 5" Deep Screen Basket
4
1 1
2
3
3
Full Capture System for Shallow Drop Inlets
with grate covers
1 3
4
304 SS - 16 gauge Rim Assembly 304 SS 14 gauge, 5mm perforated material
304 SS solid round bar 1/4" dia. used to trim
off top of basket. Makes for no sharp edge.2 304 SS Solid round bar 14" dia. , each baskets
has 6 support members.
GRATE GRATE
2STREET
SIDE
EXIT
PIPE
STREET
SIDE
EXIT
PIPE
Project: CITY OF FULLERTON PROJECT FY 2022/2023
Drawing not to scale, 01/26/2023
PAGE 5 of 5
Top View
1
Vector Access
Port = 3" x 7"Vector Access
Port = 3" x 7"
MODEL: "Low Pro"
40"x18", 40"x24", 40"x25"
Design for shallow inlet:
- 5" basket screen
- 4" to 6" bypass
- Vector Port
- No Steps; Steps
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Isometric View
Typical CB W=7'
Top of CB Steel Face AngleSteel grates
18" x 40"
G2 Construction, Inc.
Stainless SteelPerforated CurbOpening Screen
City of Seal Beach - Leisure World 2022 Environmental Cleanup Program
Project SD 2201 Fixed Screen Assembly CIP No. SD2201 PAGE 1 OF 3
1
4
2
3
TMTM
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By Iris Lee at 3:21 pm, May 10, 2023
City of Seal Beach - Leisure World 2022 Environmental Cleanup Program
Project SD 2201 Fixed Screen Assembly CIP No. SD2201
12.00
4.00
8.00
4.00
GRATE
SIDE VIEW
1 2
4
3
5
PAGE 2 OF 3
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By Iris Lee at 3:21 pm, May 10, 2023
4.00
3.50
1.00
4.00REAR ISO VIEW
1
2
4
3
5
Typ. bracket welded
to back of side kick
plates with
filletweld, using
ER308filler alloy.
PAGE 3 OF 3
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By Iris Lee at 3:22 pm, May 10, 2023
ATTACHMENT 2
Trash Capture 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 2 must identify:
Typical maintenance indicators and actions for proposed trash capture BMP(s)
based on Section 7.7 of the BMP Design Manual
Final Design level submittal:
Attachment 2 must identify:
Specific maintenance indicators and actions for proposed trash capture BMP(s).
This shall be based on Section 7.7 of the BMP Design Manual and enhanced to
reflect actual proposed components of the trash capture BMP(s)
How to access the trash capture 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 trash capture BMP and compare to maintenance thresholds)
Manufacturer and part number for proprietary parts of trash capture 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
Modular Connector Pipe Screen
Model: G2 CPS-Mod™ (Patented)
Maintenance Requirements
2
G2 CPS-Mod™ Maintenance
G2’s CPS-Mod™ device is 100% stainless steel, has no moving parts, and does not
require regular operational maintenance to function as required.
The catch basin and CPS-Mod screen should be cleaned to prevent trash and
debris build up, and to prevent blockage of screen holes. After the catch basin has
been cleaned, then the screen should be cleaned with a small air compressor,
stainless steel brush and/ or rag. Catch basin “confined space” entry is not always
required for cleaning.
Maintenance Requirements:
• Regular (3 to 4x annually) catch basin cleaning is required to remove trash,
debris, and pollutants from the catch basin and from around the screen.
Cleaning the catch basin and CPS-Mod screen prior to the rainy season is
mandatory.
• Before rain events, trash and debris in the catch basin and on the CPS-Mod
screen should be removed.
• After rain event, each CPS-Mod device should be visually inspected and
cleaned if there is build up.
• Catch basins that receive significant amounts of trash, debris, or leaves and
vegetation should be checked more frequently and always before and after
significant storm events.
• Damaged or vandalized CPS-Mod devices should be photographed and
documented. Damaged should be repaired as soon as possible to ensure
proper device function and prevent any possible flood hazard.
Annual Maintenance Requirements:
• Visual inspection (as described above) should be made at least quarterly
and after significant rain events.
Service & Repairs:
• Service and repairs are available from G2 Construction.
3
G2 CPS-Mod Parts & Disassembly
Parts List:
• The CPS-Mod is made of stainless steel with 5mm holes. It does not have
separate parts to be removed or replaced.
Recommended Spare Parts:
• No spare parts are recommended.
Disassembly and Realignment:
• If removal is required, then the bolts/screws are simply removed.
• If realignment is required, contact G2 Construction.
15
5. OPERATIONS AND MAINTENANCE INFORMATION. Include operation and maintenance
information that includes the following:
A. Device inspection procedures and inspection frequency considerations;
Inspection of the GITS is performed by visually looking for damage of the device. Visual inspection of the
GITS should be made at least quarterly and can be performed while cleaning the collection basket.
Damaged or vandalized devices should be photographed and documented. Damaged devices should be
repaired as soon as possible to ensure proper device function and prevent any possible flood hazard.
If trash or debris in the collection basket reaches 50% of the basket’s height, then it should be cleaned.
Inlets that receive significant amounts of trash, debris, or leaves and vegetation should be checked more
frequently and always before and after significant storm events.
B. Maintenance procedures, including a description of necessary equipment and materials;
The GITS must be cleaned to prevent trash and debris build up, and to prevent blockage of screen. There
are two methods for cleaning the GITS:
1. Remove, Empty, Brush & Wipe
Needed: tarp or garbage can, brush and/or garden rake, and rag or towel.
G2 GITS GRATED INLET TRASH SCREEN
16
2. Vacuum in Place
Needed: vacuum (truck or shop vac).
C. Maintenance frequency considerations, including effects of delay; and
Maintenance Frequency Requirements to keep the GITS working as a full capture system:
• 4x cleanings annually is required to remove trash, debris, and pollutants from the GITS.
• Cleaning the GITS prior to the rainy season is mandatory.
Additionally:
• Before significant rain events, trash and debris should be removed from the GITS.
• After rain event, each CPS device should be visually inspected and cleaned if there is build up.
• GITS collection baskets that are more than 50% full should be cleaned to guaranty full capture in
future storms.
• Inlets that receive significant amounts of trash, debris, or leaves and vegetation should be
checked more frequently and always before and after significant storm events.
GITS devices are highly effective at stopping all particles 5 mm or larger. Delayed maintenance and
cleaning may result in trash and debris build-up that blocks the screen and results in trash bypassing the 5
mm filter. Extreme build-up in the inlet may result in flooding.
17
D. Device maintenance and Vector control accessibility.
1. Include the date the Device application was submitted to the Mosquito Vector Control Assoc.
of California’s Review Team for input on Device design <Trashtreatment@mvcac.org>;
The application was submitted to the Mosquito Vector Control Association of California's Review Team for
input on the Device design via email on Oct. 12, 2018 and this updated application on Oct. 24, 2018.
2. Provide a video link or depict and describe how mosquito vector control personnel can
readily access the bottom of the Device and/or storm water vault for visual observation
and mosquito treatment;
Mosquito vector control personnel can readily access the bottom of the GITS-V by sliding open the Vector
Port Door located at the top of the GITS, as shown below. The 3" by 4" port opens with an unobstructed
view directly to the bottom of the inlet. The Port Door Hook assists in opening while the grate is in place.
Door Closed Door Open
18
GITS devices that do not have the Vector Port Door can still be readily accessed by mosquito vector
control personnel, as described below. The GITS basket can be access through the center opening while
it is installed in the inlet. This can be performed with the grate removed or through the grate.
Bottom of GITS basket (center) GITS installed under Grate
Vector control can also access to the bottom of the catch basin inlet while the grate and GITS are in
place, by utilizing the 6" tall bypass open space, as shown below.
Full access to both the inlet bottom and GITS is available once the GITS is easily removed.
Video of the GITS cleaning and removal procedures can be seen at this link:
https://www.dropbox.com/s/ulr8qrtqvgxyag6/G2%20GITS%20Cleaning.mp4?dl=0
3. Provide a letter of verification from the Mosquito Vector Control Association of
California when available.
A letter of verification from the Mosquito Vector Control Association of California will be provided once
available.
E. Repair procedures for the Devices structural components.
The GITS is a single piece device made of 304 stainless steel. If the structural steel needs repair, then
please contact G2 Construction at info@g2construction.com or 714.748.4242.
ATTACHMENT 3
City standard Trash Capture BMP Exhibit
[Use the City’s standard Trash Capture BMP Plan.]
SET NAIL PINK257.12
SET NAIL PINK254.11
SCR X TC253.02
SET NAIL PINK255.48
TC B254.55FL B254.16
LIP B254.21
W B254.58
W254.53
TC254.49FL254.04
LIP254.10
LIP254.04
FL253.98TC254.44
W254.55
W254.56
TC254.39
FL253.91
LIP254.01
LIP253.94
FL253.84TC254.29
W254.57
W254.58
TC254.08FL253.62
LIP253.74
LIP253.52
FL253.40TC253.86
W254.55
W254.51 W253.86
TC253.67FL253.22
LIP B253.36
LIP253.20
FL253.06TC253.51
W253.93
W253.96
TC253.12FL252.65
LIP252.75
TC B253.82BL B253.40
BL253.80TC254.17
TC254.26
TC254.26
BL253.90
BL253.92
FH254.27
TC254.25TC254.24
TC254.18
BL253.98BL254.00
BL253.92
WV254.35
TC CLO253.97BL253.65
ERSR254.09P B253.73
P254.32
P B253.84
P254.52
P254.68
P253.99
P B254.04
P254.72
P B254.66
P254.11
P B254.14
P254.56
P B254.46
P254.16
P B254.19
P254.21
TC B256.01BL B255.73BLDG B255.72
TC255.61BL255.35
BL255.18TC255.49
TC255.38BL255.05
BL254.89TC255.34 TC255.62BL254.94
BL B255.76 BL@DOOR255.91 BL255.92 BL@DOOR255.91 BL@CL3.0DOOR255.92 BL255.88 BL255.50 BL254.92TC B255.16
TC255.08
TC255.07
TC255.03
BL254.86
BL254.81
BL254.76
G254.38
G254.64
G254.93
G255.11
G255.13
G254.82
G254.57
G254.37
BL254.47TC254.89
G@BLDG255.09
T0.9D255.11
T0.9D255.26
TC254.71
TC254.71BL254.42C B254.40
C254.34
C254.39BL B254.36
HRAIL B254.36
C255.21HRAIL255.21TC B254.99BL254.66
BL1 B254.99 BL1255.08
BL1255.05 BL1255.11
BL1255.06 BL1255.15
BL1255.05
C255.81
C255.78 C255.84
C255.84 C255.36
C255.29 C255.29
HRAIL255.82
HRAIL255.80 HRAIL255.84
HRAIL255.85 HRAIL255.37
HRAIL B254.41
C1 B254.42
C1254.42
C1254.96
C1255.22HRAIL255.22 HRAIL255.26
HRAIL255.91BL B255.91
BL255.82
BL B255.28 BL255.92 BL@CL3.0DOOR255.92 BL255.90
C1 AP255.37 C1255.45
C255.44
T1.2D255.43
C255.37
C1255.42
G255.21
T1.0D255.33
C255.58
C1255.65
G255.54
C255.58
C1255.62
C1255.52C1255.47
W B255.60
W255.63
W255.77
W BC255.69
W255.63
W255.56
W255.59 STAIR B255.62STAIR256.60STAIR257.10
STAIR257.13STAIR256.60
STAIR CLO256.08
WALL257.10C B257.07
C256.98
C256.03
C254.56
C B254.60
C255.81
C257.06WALL B257.09WALL257.11
WALL BC257.22
WALL257.27
WALL257.17
WALL257.14 HRAIL B257.12
HRAIL255.52WALL255.52
WALL255.59
HRAIL B255.58
HRAIL257.11
BL B256.69
BL256.07
BL255.43BL255.37
BL255.17
BL255.37
BL255.74BL255.70
BL255.43
BL B255.43
BL255.61
BL255.88
BL255.97 BL255.86
BL256.47
BLDG255.54
G255.40
G255.46
G255.38
T1.1D255.78
T0.8D256.19
T0.4D255.13
T0.4D254.70
P B253.92
P254.24
P B254.18
P253.91
P B253.96
P254.22
P B254.28
P253.96
P B254.00
P254.33
P B254.28
P254.02
P B254.08
P254.38
P B254.33
P254.11
P B254.10
P254.37
P B254.45
P254.14
P B254.52
P254.14
P254.21
P254.68
BL B254.65TC B254.99
TC255.02BL254.69
BL BC254.52TC BC254.92
TC254.76BL254.36
BL254.29TC254.68
TC254.65BL254.26
TC LO254.71BL LO254.33
BL254.16TC254.62
TC254.59BL254.22
BL BC254.00
TC BC254.25
TC254.17BL253.99
BL253.85TC254.26
TC254.52BL254.09FL B254.10
TC1 B254.61BL B254.33 TC1254.92 TC1254.93
TC1 BC254.90
BL254.58 BL254.58
BL BC254.60
BL254.34TC1254.68
TC1254.54BL254.16BL254.06
BL253.97
BL CLO253.86
TC1254.29
TC1254.24
TC1 CLO254.30
G254.90
LIP B254.24LIP254.21
LIP254.33FL254.27TC254.66
TC254.80FL254.39 LIP254.46
LIP254.60FL254.49TC254.92
TC255.05FL254.60 LIP254.71
LIP254.82FL254.77TC255.20T0.7D255.84
T0.6D255.54
G255.48
T0.5D255.64
T0.6D255.47
G255.60
T0.9D255.72
P B254.29 P254.75
P B254.82P254.31
P B254.35 P254.93
P B255.01P254.38
P B254.42
P255.07
P B255.13P254.48
P B254.53
P255.18
P B255.24P254.59
P B254.62 P255.28
P B255.27P254.66
P B254.69 P255.30
P B255.33P254.75
P B254.76 P255.40
P B255.43P254.82
P B254.90 P255.44
P B256.72
P B256.66
P B256.60
P B256.54 P257.23TC B257.59BL B257.24
P B257.20P256.51
P B256.45 P257.14
P B257.06BL257.06TC257.43P256.37
P B256.28 P256.99
P B256.92P256.22
P B256.15 P256.86BL256.88TC257.25
P B256.83P256.12
P B256.11 P256.78
TC257.13BL256.75P B256.75P256.11
P B256.06 P256.69
P B256.65P255.99
P B255.96 P256.61BL256.62TC257.04
P B256.60P255.96
P B255.89 P256.58
TC256.94BL256.54P B256.53P255.84
P B255.80 P256.52TC BC256.92BL BC256.54
BL256.31TC256.68
TC BC256.47BL BC256.17
BL255.90TC256.24
TC BC255.98BL BC255.59
BL255.60TC255.83
TC255.70BL255.37
LP255.28
T0.7D255.10
TC BC255.12BL BC254.84
BL254.78TC255.05
TC254.93BL254.67WALL B254.63
BOL254.64
C B254.45
C254.37
BOL254.40
WALL255.26
WALL254.99
WALL254.54TC B BC254.94FL B BC254.57FL254.54TC254.89
TC254.86FL254.47
FL254.20TC254.58
TC254.61FL254.16
LIP B254.23
LIP253.91
FL253.85TC254.33
LIP253.85
LIP253.81
LIP253.83
BL B253.82
BL253.78
LIP B253.89
BL253.77
LIP253.81
BL253.79
BL253.83
LIP253.93
FL253.81TC254.32
C B253.88
C253.87C253.90C253.92
C253.96
C253.96
C253.90
C253.85
LIP253.74
FL253.62TC254.07
P B253.76
P253.77
P B253.84
P253.94
P B253.94
P253.78
P B254.19
P254.13
LIP253.68
FL253.61TC254.06
TC253.78FL253.33
LIP253.46
LIP BC253.49
FL BC253.39TC BC253.84
TC253.82FL253.38
LIP253.51
LIP253.31
FL253.22TC253.68TC253.68TC253.68TC253.66
TC253.69
TC253.70TC253.71
LIP253.38
MH253.15 FL253.22FL253.24FL253.21FL253.18
FL253.19
FL253.22
FL253.28
TC253.24FL252.74
LIP252.80
LIP252.65
FL252.55TC253.04
BOL252.94
LIP252.71
P B253.29
P253.90
P B253.85
P253.17
P B252.84
P253.71
P B253.69
P252.79
P B253.23
P253.65
P B253.67
P253.37
P B253.38
P253.74
P B253.72
P253.53
P B253.56
P253.75
P B253.56
P253.73
P253.76
P253.50
P B253.68
P253.76
P B253.75
P253.71
P B255.01
P B255.34
P B255.55
P B255.70
TC B258.15BL B257.81
BL257.42TC257.78TC BC257.16BL BC256.88
TC257.00BL256.74
BL256.88TC257.15 TC257.82BL257.44
BL257.52TC257.90TC257.32
TC257.33
TC257.36
BL257.05
BL257.01
BL257.11
P B256.75
P B256.68
P B256.72
TC257.86BL257.51
FH258.33
TC258.21
TC257.83
TC257.85BL257.78WALL B258.31
WALL259.00BL257.75
BL257.76WALL259.65
WALL260.32
WALL260.32
WALL260.34
WALL259.68
WALL259.04
WALL258.30
BL257.80
BL257.87
BL257.93
BL257.94
BL257.96
BL257.98TC B258.32
TC258.22BL257.82
BL257.70TC258.07
TC257.43BL257.40LIP B257.36
TC B257.94FL B257.50
FL257.27TC257.71TC257.43FL257.02
LIP257.09LIP256.68
FL256.62
TC257.05TC BC256.72FL256.27
LIP256.33
TC256.65FL256.12
FL255.60 TC256.35TC256.46
FL255.67
FL255.60FL255.64
FL255.81 FL255.80
TC B256.56
SDIN B255.78 SDIN255.72
SDIN255.56SDIN CLO255.64
FL256.15LIP256.15TC256.54TC256.49BL B256.21
BL256.19TC256.50
TC256.43TC256.41
BL256.17
BL256.16BL256.23 P B256.28 WV256.22 WV256.28
P B256.57 P B256.69 P B256.78 P B256.89 P B257.07 P B257.20 P B257.47
G257.31
LIP B256.86
LIP256.87
LIP256.68
LIP256.40
LIP256.28
LIP256.13BL256.17BL256.00TC256.40TC256.44
SI256.42
SI256.54
TC256.33TC256.36BL255.96BL255.92
BL B256.10
LIP B256.12
LIP256.29
BL256.21
BL256.27
LIP256.40
LIP256.53
BL256.45
BL256.61
LIP256.74 BL256.85
P B256.73
P B256.17
HC255.97
P B255.74 P255.95
P255.86P255.59
HC255.80
HC255.68
P B255.74
P B255.30 P255.64
P255.58P255.28
HC255.49
P B255.52
P B255.66
P B255.61
P B255.53
P B255.47
TC B255.30FL B254.87 LIP B254.93
C B255.96
G255.83
C255.92HRAIL B255.95 HRAIL255.92
C255.67TC255.37FL254.97 LIP254.98
LIP255.25FL255.21TC255.63TC255.60C255.28C255.26HRAIL255.32
SCO255.66
BL B255.95
BL255.94
BL255.76
BL255.74
BL255.40
BL255.58BLDG255.59C B255.59
C255.59
BL B255.26
BL255.39 LIP255.39
LIP255.53BL255.53
BL255.65 LIP255.70BL255.69
BL255.56
BL255.44
BL255.35 BL255.29
BL B255.68BL255.68WALL B255.81
WALL256.99
WALL257.13 WALL257.05 WALL256.20
SI257.25
BL255.81 BL255.76FL B255.75TC B256.15TC256.14 LIP255.82
LIP256.17
TC256.63FL256.14 FL256.17 FL256.50 FL257.04TC257.46
TC257.54
TC BC257.57
FL257.19
FL BC257.20
FL256.96TC257.22
TC257.02FL256.83
FL256.72TC256.83
T1.2D257.65
TC256.75
FL256.57FL256.56
TC256.77
TC256.79FL256.56
FL256.64TC257.00TC256.91FL256.58
FL BC256.43TC BC256.79
TC256.82FL256.42
FL256.40
TC256.81
TC256.88
FL256.52FL256.55
TC256.91
TC256.71
TC256.70
TC256.70
FL256.40
FL256.41
FL256.35FL BC256.35
TC BC256.72
TC256.61
FL256.14
FL255.75TC256.22
T1.3D258.18
T1.3D256.78
T1.4D257.87
T1.0D257.27
C255.64C255.59C255.74
C255.76
DINLET255.26 DINLET255.46
C B256.82
C256.84
C256.86
C256.87
C256.83
C256.90
C257.05
C256.96
C256.98
C256.93
C256.73
C256.65
C256.52
C256.41
C256.19
C256.16
C255.97
C255.66
C255.63 C255.56 C255.65 C255.67
C255.68
G256.51
G256.36
C B256.72
C256.79
C256.93
C256.89
BOL256.88
BOL256.39
BOL255.94
C255.78 BL B255.79 BL255.69 BL255.65
G@CL6.0DOOR256.04 BLDG &7.0OSAP255.82
BLDG &6.1OSAP255.82
BLDG255.81
BL B256.64
BL257.01
BL257.08
BL257.42
BL257.84
TC B BC256.11FL B BC255.63
LIP B BC255.71
LIP255.37
FL255.24TC255.71
TC255.55FL255.04
LIP255.13
LIP BC254.20
FL BC254.07TC BC254.58
TC254.36FL253.86
LIP253.99
LIP253.67
FL253.57TC254.07TC253.00FL252.50
LIP252.63LIP252.20
FL252.08TC BC252.63
TC252.66
TC252.86
BL B252.08BL BC252.14
BL252.19
BL252.49C B252.48C251.64
FL250.92
LIP251.01LIP249.43
FL249.33
C250.72
BL252.50TC252.81
TC252.87 TC252.87
BL252.44
BL252.49
SI253.71
T1.1D253.99
G254.36
TC253.13BL252.78
BL252.29
BL252.19TC252.54
FL B252.16
LIP B252.29LIP251.63
FL251.57
BL251.63TC251.93TC251.88
TC251.83
BL251.56
BL251.56
LIP251.00
FL250.95FL250.35
LIP250.46LIP249.66
LIP B250.48
LIP251.02 LIP251.62
BL251.60TC251.84
TC251.92 TC251.98
BL251.66 BL251.75
C B251.84
C252.60
C252.65TC252.64BL252.30
BL252.78TC253.11TC252.56TC252.53
TC252.49
BL252.22BL252.14
BL252.14
BL252.25
BL252.32 BL252.39
TC252.57
TC252.60 TC252.63 TC253.48BL253.15
TC B250.26BL B249.77BL249.91 BL BC250.54TC BC250.79
TC250.90BL250.66
BL250.45TC250.82TC CLO250.25
BL CLO249.68TC B250.08FL B249.63
LIP B249.62
LIP249.36
LIP249.41TC249.71FL249.26
FL249.22C B249.67
C248.02
FL247.91 C B248.36
C249.05
C249.91ERSR249.77
C249.85BL B249.36BL249.43TC B249.86 TC250.83
TC250.97
TC251.02
FL250.50
FL250.62
FL250.65
FL BC250.73TC BC251.12
TC250.50FL249.98
FL249.30TC249.79
LIP B249.41LIP247.69
FL247.55 TC248.33TC247.91TC248.04
G251.01 G251.36 G251.10
SCO253.01
WMH254.60
C B254.47
C254.56
C254.57C CLO254.52
BL B254.29
BL253.77 BL253.93
BL254.39
FDVA254.86
FDCON255.10CO255.13
CO254.67
UNKNOWN255.65
ICV255.33
RWTR PIPE255.14
RWTR PIPE255.03
RWTR MTR254.03WMTR253.64
WTR PIPE254.51
WTR PIPE254.56
G255.68
G255.17
T1.5D256.80
G255.86
LP254.54
T1.3D255.84
G256.60
G255.86
G255.15
T1.1D255.64
G256.06
G256.98
G257.02 G256.51 G255.57
G256.08
ICV256.06
C1 B255.79
C B255.98C256.13
C1255.98
BLDG256.15
C1255.97
C256.02
G255.81
C255.53
C1255.45C1254.77
C254.81
G255.80G255.74
G255.47
C254.16
C1254.12C1253.56
C253.54
G254.49
G255.22WV255.18G254.46
G254.40
C252.81
C1252.82C1252.56
C253.20BLDG CLO253.20
ICV253.46
P B251.81
P B251.90P B250.59
N67°23'
1
7
"
E
2
1
2
.
5
2
'
Δ=21°13'57" L=185.29'R=500.00'
N0
0
°
3
5
'
4
4
"
E
2
3
8
.
2
1
'
N89°24'16"W 90.41'
Δ=22°25'28" L=11.35'R=29.00'
N68°09'
4
2
"
E
5
0
.
0
0
'
Δ
=
1
6
2°4
8'5
6" L
=1
02.30'
R
=
3
6.
0
0'
N
3
9
°
0
0
'
5
4
"
W
3
8
.
0
0
'
N84°32'35"W 167.33'
N0
0
°
3
4
'
0
4
"
E
4
4
5
.
3
1
'
4.948% SLOPE
4.9
4
8
%
S
L
O
P
E
BMP TYPEBMP ID #SYMBOL CASQA NO.DRAWING NO.SHEET NO.(S)MAINTENANCE
FREQUENCY
TRASH CAPTURE BMP TABLE
1. THESE BMPS ARE MANDATORY TO BE INSTALLED PER MANUFACTURER'S
RECOMMENDATIONS AND/OR THESE PLANS.
2. NO CHANGES TO THE PROPOSED BMPS ON THIS SHEET WITHOUT PRIOR
APPROVAL FROM THE CITY ENGINEER.
3. NO SUBSTITUTIONS TO THE MATERIAL OR TYPES OR PLANTING TYPES
WITHOUT PRIOR APPROVAL FROM THE CITY ENGINEER.
4. NO OCCUPANCY WILL BE GRANTED UNTIL THE CITY INSPECTION STAFF
HAS INSPECTED THIS PROJECT FOR APPROPRIATE BMP CONSTRUCTION
AND INSTALLATION.
BMP NOTES:
PARTY RESPONSIBLE FOR MAINTENANCE:
NAME
ADDRESS
PHONE NO.
CONTACT
PLAN PREPARED BY:
NAME
ADDRESS
PHONE NO.
CERTIFICATION
COMPANY
INSPECTION
FREQUENCYQUANTITY
TRASH CAPTURE BMPs
5. REFER TO MAINTENANCE AGREEMENT DOCUMENT.
1 EA.
6. SEE PROJECT SWQMP FOR ADDITIONAL INFORMATION.
SIGNATURE
AS NEEDED
BMP CONSTRUCTION AND INSPECTION NOTES:
THE EOW WILL VERIFY THAT PERMANENT BMPS ARE CONSTRUCTED AND
OPERATING IN COMPLIANCE WITH THE APPLICABLE REQUIREMENTS.
PRIOR TO OCCUPANCY THE EOW MUST PROVIDE:
1.PHOTOGRAPHS OF THE INSTALLATION OF PERMANENT BMPS
PRIOR TO CONSTRUCTION, DURING CONSTRUCTION, AND AT FINAL
INSTALLATION.
2.A WET STAMPED LETTER VERIFYING THAT PERMANENT BMPS ARE
CONSTRUCTED AND OPERATING PER THE REQUIREMENTS OF THE
APPROVED PLANS.
3.PHOTOGRAPHS TO VERIFY THAT PERMANENT WATER QUALITY
TREATMENT SIGNAGE HAS BEEN INSTALLED.
PRIOR TO RELEASE OF SECURITIES, THE DEVELOPER IS RESPONSIBLE
FOR ENSURING THE PERMANENT BMPS HAVE NOT BEEN REMOVED OR
MODIFIED BY THE NEW HOMEOWNER OR HOA WITHOUT THE APPROVAL
OF THE CITY ENGINEER.
REV. 5/2021
40202010
FEETSCALE:
0
1 INCH = 20
JON ARENZ, P.E.
COFFMAN ENGINEERS, INC.
1455 FRAZEE ROAD, STE 600
SAN DIEGO, CA 92108
(619) 232-4673
286-6
286-6
286-6
3
3
3
1
2
3
2
1
3
1 EA.
1 EA.
AS NEEDED
AS NEEDED
R.C.E. 75246
3 3
PE2·88·06 286-6
LEGEND
PROPERTY BOUNDARY
FLOW LINES
EXISTING 12' SEWER
www.coffman.com
ph 619.232.4673
1455 Frazee Rd., Suite 600
San Diego, CA 92108
ph 619.232.4673
G2 GITS GRATED
INLET SCREEN
(40X24-V) AND G2
FXSS W10 SCREEN
G2 CUSTOM
CPS-MOD
(3U-48X24V)
G2 CUSTOM
CPS-MOD
(3U-48X24V) AND G2
FXSS W3.5 SCREEN
10
10
10
10
10
HAZARD JR. ENTERPRISES, LP
10951 SORRENTO VALLEY RD., #2A
SAN DIEGO, CA 92121
(858) 200-4273
JPAESKE@CFISANDIEGO.COM
4 TIMES PER YEAR
4 TIMES PER YEAR
4 TIMES PER YEAR
WHITTAKER BUILDING
PD2023-0011 GR2023-0017
No. 75246
Exp. 12/31/23
S
TATE OF CA L I F O R N IA
REGISTER E D P R O F ESSIONA
L
E
N
G
I
N
EERJ
ONAT H A N R IC HAR
D
A
R
E
NZ
C I V I L
ATTACHMENT 3.0
BMP-1
ATTACHMENT 3.11
BMP-1
ATTACHMENT 3.12
BMP-2
ATTACHMENT 3.2
BMP-3
ATTACHMENT 3.31
BMP-3
ATTACHMENT 3.32