HomeMy WebLinkAboutPD 2024-0023; 2081 FARADAY; TRASH CAPTURE STORM WATER QUALITY MANAGEMENT PLAN; 2024-10-01City of
Carlsbad
TRASH CAPTURE STORM WATER
QUALITY MANAGEMENT PLAN
(SWQMP) TEMPLATE
E-35A
(FOR STANDARD PROJECTS ONLY)
CITY OF CARLSBAD
TRASH CAPTURE
Development Services
Land Development Engineering
1635 Faraday Avenue
442-339-2750
www.carlsbadca.gov
STORM WATER QUALITY MANAGEMENT PLAN (SWQMP)
FOR
E-35A
2081 FARADAY
PD2024-0023
DRAWING No. (DWG 350-3A)
EAGREE 2024-0026
ENGINEER OF WORK:
R.C.E. NO.: 68075
EXPIRATION DATE: 06-30-25
PREPARED FOR:
LINCOLN PROPERTY COMPANY, LLC
120 NORTH LASALLE STREET, SUITE 2900
CHICAGO, ILLINOIS 60602
(312) 345-8796
PREPARED BY:
PASCO LARET SUITER & ASSOCIATES
119 ABERDEEN DRIVE
CARDIFF, CA 92007
(858) 259-8212
DATE:
APRIL, 2025
REV 04/23
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 1 a: DMA Exhibit
Attachment 1 b: 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
C68075 Exp. 06/30/25
CERTIFICATION PAGE
Project Name: 2081 Faraday
Project ID: PD2024-0023
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. RS-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.
re, PE Number & Expiration Date
Gregory W. Lang, PCE 68075
Print Name
Pasco Laret Suiter & Associates
Company
04/07/2025
Date
PROJECT VICINITY MAP
RUTHERFORD RD
NOTTO SCALE
3,610
3,619
4,213 0.10
4,213 0.10
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.
STEP2
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.
E-34 Page 2 of 4 REV 04/23
STEP3
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
□ lg] 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 □ lg] 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 □ lg] 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 □ lg]
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 □ lg] 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 □ lg] 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
□ lg] 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 □ lg] 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 □ lg] 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 □ lg] 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 □ lg]
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) 1mpa1red 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.
E-34 Page 3 of 4 REV 04/23
3,6104,213
1.76
STEP4
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) = 238,806 SQ. ft. 181 □
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 BM P's required for PDP apply to the entire development. Go to step 5, complete the
trash capture question.
STEPS
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), Pl (Planned Industrial), CF (Community Facilities), GC (General 181 □ Commercial), L (Local Shopping Center), R (Regional Commercial), V-B (Village-Barrio), VC (Visitor
Commercial), 0 (Office), VC/OS (Visitor Commercial/Open Space), Pl/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 vou answered "no", Go to step 6, check the second or third box as determined in step 3.
STEP6
CHECK THE APPROPRIATE BOX(ES) AND COMPLETE APPLICANT INFORMATION
181 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).
181 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.
D 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.
D 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: Nikki Burg Applicant Title: Senior Property Manager
Applicant Signature: Nikki Burg Digitally signed by Nikki Burg 1 Q 21 2024 Date: 2024.10.2110:58:43 -07"00' Date: --
E-34 Page 4 of 4 REV 04/23
SITE INFORMATION CHECKLIST
Proiect Summarv Information
Project Name 2081 Faraday
Project ID PD2024-0023
Project Address 2081 Faraday Avenue
Carlsbad, CA 92008
Assessor's Parcel Number(s) (APN(s)) 212-120-26
Project Watershed (Hydrologic Unit) Carlsbad 904
Parcel Area 9.00 (392,049 Acres Square Feet)
Description of Existing Site Condition and Drainage Patterns
Select applicable Land Use Category:
High Density Residential
DR-23 (15-23 du/ac)
□ R-30 (23-30 du/ac)
Industrial
0 Pl (Planned Industrial)
Commercial
□CF (Community Facilities)
□ GC (General Commercial)
□ L (Local Shopping Center)
□ R (Regional Commercial)
DV-B (Village-Barrio)
□ VC (Visitor Commercial)
DO (Office)
□ VC/OS (Visitor Commercial/Open Space)
Mixed Urban
□ Pl/0 (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]:
In the existing condition, most of the storm water runoff from the site outlets via existing
private inlets, while a small portion on the North side of the site drains to the right-of-way.
The South side of the site will drain via the existing private inlets which connect to an
existing 84" public storm drain, as shown on drawing no. 350-3A. The North side of the
site will drain through existing private inlets that connect to a 21" public storm drain pipe
also detailed in drawing no. 350-3A, which eventually leads to a public storm drain on
Faraday Avenue. The portion of the site that drains to the right-of-way will flow to an
existing curb inlet located on Faraday Avenue, just before the intersection with College
Boulevard. The proposed site will not include any new proposed storm drains.
Description of Proposed Site Development and Drainage Patterns
Project Description / Proposed Land Use and/or Activities:
The project is located at 2081 Faraday Avenue in the City of Carlsbad and spans a total site of 9.0
acres and features an existing warehouse, parking areas, loading docks, and a synthetic running
field. The proposed plan involves adding ADA-compliant parking stalls on the North side of the
property, as well as additional stalls on the West side which includes the removal portion of the
existing synthetic running field located on the southwest side.
Does the project include grading and changes to site topography?
0Yes
□No
Description / Additional Information:
There will be minor changes on the site topography to accommodate ADA-compliant
stalls on the North side of the site, as well as additional parking stalls.
Does the project include changes to site drainage (e.g., installation of new storm water
conveyance systems)?
□Yes
0No
Description / Additional Information:
There will be no changes to site drainage, but new trash capture devices will be
installed.
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.
( Cicyof
Carlsbad
Project Name: 2081 Faraday
Project ID: PD2024-0023
STANDARD PROJECT
REQUIREMENT
CHECKLIST
E-36
Project Information
Development Services
Land Development Engineering
1635 Faraday Avenue
442-339-2750
www.carlsbadca.gov
DWG No. or Building Permit No.: owG 350-3A
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 1. Select the BMPs to be implemented for each identified feature. Explain
the site. why any BMP not selected is infeasible in the area below.
SD-G SD-H
Conserve natural Provide buffers around waterbodies
features
□ Natural waterbodies u □
□ Natural storaqe reservoirs & drainaqe corridors □ --
□ Natural areas, soils, & vegetation {incl. trees) u --
B. BMPs for Common Impervious Outdoor Site Features (see Fact Sheet BL-2)
1. Check the boxes below for each 2. Select the BMPs to be implemented for each proposed feature. If neither BMP SD-B nor
proposed feature. SD-I is selected for a feature, explain why both BMPs are infeasible in the area below.
SD-B SD-I Minimize size of
Direct runoff to pervious Construct surfaces from impervious areas
areas permeable materials
□ Streets and roads LJ u [!I Check this box to confirm
Iii Sidewalks & walkways □ □ that all impervious areas on
the site will be minimized
Iii Parking areas & lots LJ LJ where feasible.
Iii Driveways □ □ If this box is not checked,
□ Patios, decks, & courtyards □ LJ identify the surfaces that
cannot be minimized in area
□ Hardcourt recreation areas □ u below, and explain why it is
E-36 Page 1 of 4 Revised 04/23
□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.
(see Fact
Sheet BL-3)
If no BMPs are selected, explain why they are infeasible in the area below.
The site was previously developed. No changes to the building or roof drains are
proposed.
OSD-B
Direct runoff to pervious areas
D SD-C
Install green roofs
OSD-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
(see Fact
Sheet BL-4)
If SD-K is not selected, explain why it is infeasible in the area below.
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 2. Which BMPs will be used to prevent 3. Where will runoff from the
work areas below materials from contacting rainfall or work area be routed?
runoff?
Iii Check here if none are proposed (See Fact Sheet BL-5) (See Fact Sheet BL-6)
Select all feasible BMPs for each work area Select one or more option for each
work area
SC-A SC-B SC-C SC-D SC-E Other
Overhead Separation Wind Sanitary Containment
covering flows from protection sewer system
adjacent
areas
□ Trash & Refuse Storage □ □ □ □ □ □
□ Materials & Equipment Storaqe □ □ □ □ □ □
E-36 Page 2 of 4 Revised 04/23
□ Loading & Unloadinq □ □ □ □ □ □
□ Fuelinq □ □ □ □ □ □
□ Maintenance & Repair □ □ □ □ □ □
□ Vehicle & Equipment Cleanina □ □ □ □ □ □
□ 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 ... Iii are not proposed □ will be labeled with stenciling or signage to
discouraae dumoina (SC-Fl
• Interior work surfaces, floor drains & Iii are not proposed □ will not discharge directly or indirectly to the MS4
sumps ... or receiving waters
• Drain lines (e.g. air conditioning, boiler, Iii are not proposed □ will not discharge directly or indirectly to the MS4
etc.) ... or receiving waters
• Fire sprinkler test water ... Iii are not proposed □ will not discharge directly or indirectly to the MS4
or receivina waters
Provide discussion/justification for source control BMPs that will not be implemented (either partially or fully):
E-36 Page 3 of 4 Revised 04/23
E-36 Page 4 of 4 Revised 04/23
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:
runoff
[Continued from previous page -This page is reserved for continuation of description of general
strategy for trash capture BMP implementation at the site.]
Trash Capture BMP Summary Information
BMP ID No. Type of Trash Capture BMP Permit No. Drawing No.
1 BrightWater Connector Pipe Screen EAGREE2024-0026 DWG 350-3A
2 BrightWater Connector Pipe Screen EAGREE2024-0026 DWG 350-3A
3 FlexStorm Full Inlet Filter EAGREE2024-0026 DWG 350-3A
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 Contents Checklist
Seauence
Attachment 1 a OMA Exhibit (Required) 0Included
See OMA Exhibit Checklist on the
back of this Attachment cover sheet.
(24"x36" Exhibit typically required)
Attachment 1 b Tabular Summary of DMAs Showing 0 Included on OMA Exhibit in
OMA ID matching OMA Exhibit, OMA Attachment 1 a
Area, and OMA Type (Required)* □ Included as Attachment 1 b,
separate from OMA Exhibit
*Provide table in this Attachment OR
on OMA Exhibit in Attachment 1 a
Attachment 1 c Trash Capture BMP Design 0Included
Worksheets / Calculations (Required)
Refer to Appendices J of the BMP
Design Manual for trash capture BMP
design guidelines
Use this checklist to ensure the required information has been included on the DMA
Exhibit:
The OMA Exhibit must identify:
0 Site topography and impervious areas
0 Site drainage network and connections to drainage offsite
0 Proposed grading (if applicable)
0 Drainage management area (OMA) boundaries, OMA ID numbers, and OMA areas (square
footage or acreage)
0Trash Capture BMPs (identify location and type of BMP)
D
S
S
S
E
C
C
C
C
X
X
X
X
X
X
X
X
X
X
X
X
X
E
EX
X X
X
X
XXXXX
X
SD
SD
SD
SD
SD
SDSD
SD
SD
SD SD
SD
SD SD SD
RU
T
H
E
R
F
O
R
D
R
D
FARAD
A
Y
A
V
E
CO
L
L
E
G
E
B
L
V
D
LOT 51
MAP 11811
LOT 60
MAP 11811
LOT 61
MAP 11811
R/W
C/L
R/W
R/W
C/L
R/W
R/
WC/
L
R/
W
P/L
P/L
DMA 1
LOT 50
MAP 11811
DMA 2
DMA 3 EXISTING BUILDING
PROPOSED TRASH CAPTURE
ON EX. TYPE G-1 INLET
STRUCTURAL BMP ID #3
PROPOSED TRASH CAPTURE
ON EX. TYPE G-1 INLET
STRUCTURAL BMP ID #1
PROPOSED TRASH CAPTURE
ON EX. TYPE G-1 INLET
STRUCTURAL BMP ID #2
255
256
257
258
259
255
256
257
255
255
257
255
265
260
P/L
GRAPHIC SCALE: 1" = 50'
0 50 100 150
DMA EXHIBIT
2081 FARADAY
2081 FARADAY AVENUE
CARLSBAD, CA 92008
PLSA JOB NO.: 4235
DATE : APRIL 2025
GRADING LIMIT
PERVIOUS AREA
RIGHT-OF-WAY LINE/PROPERTY LINE
DMA BOUNDARY
IMPERVIOUS AREA
SD SDEXISTING STORM DRAIN
LEGEND
DESCRIPTION
HYDROLOGIC SOIL: TYPE D
GEOTECHNICAL TESTING WAS NOT PERFORMED FOR THIS SITE.
DMA DRAINAGE
AREA (AC)
IMPERVIOUS
AREA (AC)
PERVIOUS
AREA (AC)% IMP
AREA WEIGHTED
RUNOFF
COEFFICIENT, C
DCV
(CUBIC
FEET)
DMA TYPE
DMA 1 1.21 1.21 0.003 99.7%0.90 2,369 TRASH CAPTURE
DMA 2 3.52 3.26 0.27 92.4%0.84 6,442 TRASH CAPTURE
DMA 3 1.08 1.04 0.04 96.2%0.87 2,046 TRASH CAPTURE
TOTAL 5.81 5.50 0.31 94.7%0.87 11,005 TRASH CAPTURE
SOIL INFORMATION
GROUND WATER INFORMATION
DMA SUMMARY TABLE
PROJECT CHARACTERISTICS
PARCEL AREA:9.00 AC
DISTURBED AREA:5.81 AC
TOTAL IMPERVIOUS AREA:5.50 AC
TOTAL PERVIOUS AREA:0.31 AC
% IMPERVIOUS:94.6 %
DMA EXHIBIT
SCALE 1" = 50'
PERMANENT POST-CONSTRUCTION BMP NOTES:
PERMANENT POST CONSTRUCTION BMP DEVICES SHOWN ON PLAN SHALL NOT BE MOVED OR MODIFIED WITHOUT THE
APPROVAL OF THE CITY ENGINEER OR RESIDENT ENGINEER AND THE ENGINEER OF WORK.
NEW & REPLACED IMPERVIOUS AREA
EXISTING SYNTHETIC FIELD TO BE REMOVED
D
S
S
S
E
C
C
C
C
X
X
X
X
X
X
X
X
X
X
X
X
X
E
EX
X X
X
X
XXXXX
X
SD
SD
SD
SD
SD
SDSD
SD
SD
SD SD
SD
SD SD SD
RU
T
H
E
R
F
O
R
D
R
D
FARAD
A
Y
A
V
E
CO
L
L
E
G
E
B
L
V
D
LOT 51
MAP 11811
LOT 60
MAP 11811
LOT 61
MAP 11811
R/W
C/L
R/W
R/W
C/L
R/W
R/
WC/
L
R/
W
P/L
P/L
LOT 50
MAP 11811
EXISTING BUILDING
GRAPHIC SCALE: 1" = 50'
0 50 100 150
PROPOSED SITE PLAN
2081 FARADAY
2081 FARADAY AVENUE
CARLSBAD, CA 92008
PLSA JOB NO. : 4235
DATE : DECEMBER 2024
GRADING LIMIT
RIGHT-OF-WAY LINE/PROPERTY LINE
SD SDEXISTING STORM DRAIN
LEGEND
DESCRIPTION
PROJECT CHARACTERISTICS
IMPERVIOUS AREA TO BE REMOVED & REPLACED:4,213 SF
TOTAL: 4,213 SF (0.10 AC)
IMPERVIOUS AREA TO BE
REMOVED & REPLACED OR CREATED
2081 FARADAY
Trash Capture Design Flow Rate Calculation
TRASH CAPTURE ID # DMA Q (cfs)** C* I (in/hr) A (ac)
1 DMA 1 0.52 0.90 0.471 1.21
2 DMA 2 1.40 0.84 0.471 3.52
3 DMA 3 0.45 0.87 0.471 1.08
*Calculated per City of Carlsbad BMP Design Manual Table B.1-1
C impervious = 0.90
C pervious = 0.10
** Calculated per City of Carlsbad BMP Design Manual Appendix J.2
2081 FARADAY
Trash Capture Design Flow Rate Calculation - 100 Year
TRASH CAPTURE ID # DMA Q (cfs)** C*** I (in/hr) * A (ac)MAX Q (cfs)
1 DMA 1 0.87 6.19 1.21 *****
2 DMA 2 0.87 6.19 3.52 *****
3 DMA 3 0.87 6.19 1.08 25.1 ****
* Calculated per San Diego County Hydrology Manual Figure 3-1
Selected frequency: 100 year
P_6 = 2.8 in
P_24 = 5.1 in
P_6/P_24 = 55.0 %
I = 6.19 in/hr
*** Per Table 3-1 of the San Diego County Hydrology Manual
C = 0.87
** Calculated per San Diego County Hydrology Manual
**** Per ADS-FLEXSTORM 11/3/17 letter to CA SWRCB
***** Per Connector Pipe Screen Configuration detail from BrightWater
11.72
19.61
6.52
18.96
5.82
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:
0 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)
0 How to access the trash capture BMP(s) to inspect and perform maintenance
0 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
0 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.)
0 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
•
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1.
2.
3.
4.
1.
2.
3.
November 30, 2017
Mr. Jaime Favila
California State Water Resources Control Board
Division of Water Quality
P.O. Box 100
Sacramento, CA, 95812-100
Re: Trash Treatment Control Device Application for
ADS-FLEXSTORM Full Trash Capture (FTC) Inserts
Dear Mr. Favila,
Thank you for the opportunity to submit our application for the FLEXSTORM FTC inserts.
Information is presented and organized in accordance with the Trash Treatment Control
Device Application Requirements. Per the application guidelines the following document is
broken into 7 sections and an appendix:
1. Cover Letter
2. Table of Contents
3. Physical Description
4. Installation Information
5. Operation and Maintenance Information
6. Reliability Information
7. Field/Lab Testing Information and Analysis
Appendix
Thank you for reviewing this application, if any additional information is required please
contact us as needed.
Jamie Ringenbach, General Manger
Advanced Drainage Systems, Inc
FLEXSTORM division
ADS-FLEXSTORM
24137 111th Street
Naperville, IL 60564
Page | 2
1. COVER LETTER
1.A. General description of the device.
The FLEXSTORM FTC INSERT is an engineered, custom manufactured catch basin insert. It
is placed directly under a catch basin drainage grate or suspended below a catch basin curb
opening in order to collect trash and debris from surface storm water runoff as part of a TMDL
program, or as directed by the Engineer.
1.B. The applicant’s contact information and location.
California based contact:
Mike Reardan 303-532-7490 mike.reardan@ads-pipe.com
Allied Product Manager
32086 Calle Navelda
Temecula, CA, 92592
FLEXSTORM’s contact at the manufacturing facility:
Jamie Ringenbach 630-355-3288 jamie.ringenbach@ads-pipe.com
General Manager, ADS FLEXSTORM
24137 111th Street, unit A
Naperville, IL, 60564
1.C. The device’s manufacturing location.
FLEXSTORM Inlet filters are designed and manufactured at our facility in Naperville, IL. They
are stocked locally at 5 ADS locations in CA and at any number of over 5,000 distributors
nationwide.
ADS-FLEXSTORM
24137 111th Street
Naperville, Il, 60564
1.D. A brief summary of any field/lab testing results that demonstrate Device’s
functions as described within the application.
FLEXSTORM FTC inserts are field tested at several sites as part of a trial program with
Orange County, Florida. Over the course of 8 months monthly, inspections and cleanings
were performed on the FTC inserts. Over 2 years one device was recorded to remove ~700
lbs. of debris and sediment with a ratio of roughly 2:1 by weight. A write-up of that pilot
program can be found in Appendix A.
1.E. A brief summary of Device limitations, and operational, sizing, and maintenance
considerations.
The FLEXSTORM Full Trash Capture (FTC) Inserts are designed for both below the grate
installations and in wall mount applications suspended under an open throat curb opening.
The drop inserts are designed to fit the CA market for all standard catch basin concrete
openings and grate sizes with adjustable side flanges to take up gaps potentially larger than 5
mm. Rear bolt on deflectors are used for combination inlets to prevent trash from bypassing
the filter resting below the grate. FLEXSTORM also builds for custom sizes or unique
ADS-FLEXSTORM
24137 111th Street
Naperville, IL 60564
Page | 3
situations with completed field dimensional forms. For curb inlet wall mount filters, the insert is
dropped through the 20” dia. manhole opening, 2 mounting brackets are secured to the catch
basin wall beneath the curb opening, and the filter is lifted onto the brackets with quick release
features. Drop inserts usually take 2-5 minutes to install, while wall mount inserts will take
approximately 10 minutes per 4’ length. Maintenance is typically performed using an
industrial vacuum with 3” hose or vacuum truck when the baskets are half full, or every 4
months, depending on location loading and storage capacity. Alternatively, the filters may be
completely lifted from the drainage structure and dumped into a receptacle, rinsed and
replaced.
1.F. Description or list of locations, if any, where Device has been installed.
ADS-FLEXSTORM has sold the FTC stainless steel baskets into various markets including
PA, CA, and FL with excellent results. The inserts are being specified in CA where CPS
installations are not possible- most recently in Contra Costa, Newark, and Camarillo. A large
number of inserts may be found in areas of Lancaster, PA with extreme amounts of trash
entering their 2 x 4 catch basins. ADS-FLEXSTORM also has FL installations in Orange
County where they have been actively monitoring performance and have approved
FLEXSTORM for use in their storm water insert program. A write-up of this Orange County
pilot program can be found in Appendix A.
FLEXSTORM has provided Inlet Filters targeting various levels of particle size and pollutant
removal since 2004 with well over 150,000 installations throughout the country. When ADS
acquired FLEXSTORM in 2012, efforts to develop trash capture devices for the CA market
began. The 5 mm 14GA perforated stainless steel became a stock item used for connector
pipe screens CPS, an approved FTC device. FLEXSTORM naturally transitioned this
perforated steel into drop inserts replacing the traditional filter bags on the PURE framing
where larger trash, not sediment, was targeted. The field results have been successful in
capturing cigarette butts, leaves and trash without resuspension given the baskets high
storage capacity. The large screen openings allow ample flow through and will not blind from
sand and sediment loading off streets and parking lots.
1.G. Certification Clause.
I certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified
personnel properly gather and evaluate the information submitted. Based on my inquiry of the
person or persons that manage the system or those persons directly responsible for gathering
the information, to the best of my knowledge and belief, the information submitted is, true,
accurate, and complete. I am aware that there are significant penalties for submitting false
information, including the possibility of fine and imprisonment for knowing violations.
Jamie Ringenbach, General Manger
Advanced Drainage Systems, Inc
FLEXSTORM division
Page | 4
2. Table of Contents
Page #
Introduction 1
1. Cover Letter
Section 1.A 2
Section 1.B 2
Section 1.C 2
Section 1.D 2
Section 1.E 2
Section 1.F 3
Section 1.G 3
Section 1.H 3
2. Table of Contents 4
3. Physical Description
Section 3.A 5
Section 3.B 5
Section 3.C 5
Section 3.D 6
Section 3.E 6
Section 3.F 6
Section 3.G 7
Section 3.H 7
Section 3.I 7
Section 3.J 7
4. Installation Information
Section 4.A 7
Section 4.B 8
5. Operation and Maintenance Information
Section 5.A 8
Section 5.B 8
Section 5.C 8
Section 5.D 8
6. Reliability Information
Section 6.A 9
Section 6.B 9
Section 6.C 9
7. Field Testing Information and Analysis
Section 7.A 9
Appendices
Appendix A. Report from Orange County, FL pilot program
Appendix B. Design Drawings
Appendix C. Hydraulic calculations of Perforated Stainless Steel Baskets
Appendix D. Photo Gallery
Appendix E. Hydraulic calculations of Ultimate Bypass Region
Page | 5
3. Physical Description
3.A. Design drawings for all standard Device sizes including dimensions, and alternative
configurations.
Refer to APPENDIX B for design drawings
3.B. Description of how the Device works to trap all particles that are 5mm or greater in size and how it
is sized for varying flow volumes.
The ADS-FLEXSTORM FTC filter ensures that all particles greater than or equal to 5mm are captured by
constructing the filtering body of the filter from uniformly punched stainless steel with 4.8mm openings. This
ensures that no particles larger than 4.8mm can pass by the filter.
FTC inserts are sized to fit the catch-basin they are being inserted into. As a result their size is directly
related to the size of the catch-basin and performance characteristics generally scale with the
increase flow through a larger frame and grate.
ADS-FLEXSTORM has established a catalog of common sized inserts based on the standard drainage
structures found throughout California. The Installer (Contactor) shall inspect the plans and/or worksite to
determine the quantity of each drainage structure casting type. The catch basin design, casting number, or
the exact grate and clear opening size will provide the information necessary to identify the required
FLEXSTORM FTC insert part number. Inserts are supplied to the field pre-configured to fit the specified
drainage structure.
3.C. Device maximum trash capture capacity.
See Tables 1 & 2 for the trash capacity of each FTC insert.
FLEXSTORM Performance Specifications - Full Trash Capture
ADS-FLEXSTORM
P/N
Basin
Size
Basket
Depth
Ultimate
Bypass Flow
Rate (CFS)*
Storage
Volume (ft^3)
Flow Rate
when Empty
(CFS)*
Flow Rate
when 50%
Full (CFS)*
62HD12FTC 12 x 12 12" 0.5 0.7 6.8 3.0
62HD18FTC 18 x 18 12" 1.8 1.7 12.2 4.5
62HD24FTC 24 x 24 12" 3.0 3.1 18.6 6.3
62HD3618FTC 36 x 18 12" 4.0 3.5 20.8 7.3
62HD3624FTC 36 x 24 12" 4.5 5.0 25.1 8.3
62HD36FTC 36 x 36** 12" 8.0 7.1 41.6 14.6
* Calculated with 4” head pressure above 2” grate
** Two 36 x 18 filter baskets placed side by side
Table 1: Part #s, Basin IDs, and performance specifications for standard FLEXSTORM FTC Catch
Basin drop inserts
Page | 6
Product Selection of Wall Mounted Inserts for Standard Curb Inlets FLEXSTORM Performance
Specifications - Full Trash Capture
ADS-FLEXSTORM
P/N
Curb
Opening
Width (in)
Basket
Depth
Storage
Volume
(ft^3)
Flow Rate
when Empty
(CFS)*
Flow Rate
when 50%
Full (CFS)*
62HDWM36FTC 36 12" 2.7 17.8 6.7
62HDWM42FTC 42 12" 3.1 20.3 7.6
62HDWM48FTC 48 12" 3.6 22.8 8.5
62HDWM60FTC** 60 12" 4.5 27.9 10.3
62HDWM72FTC** 72 12" 5.4 33 12.1
62HDWM84FTC** 84 12" 6.3 37.6 13.7
62HDWM96FTC** 96 12" 7.2 42.7 15.5
62HDWM120FTC** 120 12" 8.9 52.4 18.9
* Calculated with 6” head pressure above Filter
** Multiple filters of the same length placed side by side
Table 2: Part #s, Curb Opening Widths, and performance specifications for selected FTC Wall
Mounted inserts for Open Throat Basins
3.D. The Device hydraulic capacity (flow in cfs) at its maximum trash capture capacity for all standard
Device sizes.
Refer to Tables 1 & 2 for hydraulic capacity of FTC inserts, hydraulic calculations for 36 x 18 FTC insert are
found in Appendix C.
3.E. Conditions under which the device re-introduces previously trapped trash.
The FLEXSTORM trash retention screen and storage basket will not reintroduce previously trapped trash
unless there is a backflow in the storm conveyance system. If water is entering the filter normally through the
drainage grate the previously trapped trash will continually compact into the basket.
3.F. Each material and material grade used to construct the Device.
The FLEXSTORM FTC frame is primarily constructed from 304 stainless steel of varying gauge. The framing
includes lifting handles to facilitate installation and removal of the basket into and out of the drainage structure.
The top support flanges are 13GA 304 stainless steel and the long span adjustable side flanges are 14GA or
16GA 304 stainless steel. These side flanges are used to funnel all flow into the basket with the ultimate
bypass beneath them. The ultimate bypass in the frame is designed to exceed that of the design flow into the
drainage structure.
The remaining FLEXSTORM FTC framing is comprised of 11GA 304 stainless steel corner brackets and 12GA
304 stainless steel U-channels. The active filtering component is 14GA perforated stainless steel. The steel
basket is uniformly punched with 3/16” dia. holes (4.8 mm) in such a pattern that the basket has 50% open area
and retains any particles 5 mm or larger. The center main body panel is a one piece formation stretching
across of the longest span making up the front, bottom, and rear of the basket. This single formation provides
exceptional strength and stability of the basket. The two side panels are then secured to the main body panel
with either spot welds or 316 stainless rivets. The basket is secured to the U-channel framing system with
5/16” diameter 316 stainless steel bolts.
Page | 7
3.G. Estimated design life of the Device.
The FTC inserts have a 25 year minimum design life when used in storm water applications exposed to
moderate levels of salt and other naturally occurring roadway contaminants. The fabrication or bending may
stress or expose certain surfaces slightly but not significantly reduce the design life of the stainless steel. The
loading for each sized insert is considered and the support materials have been tested with considerable safety
factor based on 125 lbs. per cubic ft. storage capacity.
3.H. Engineering plans/diagrams for a typical installation.
Written instructions and diagrams for a typical installation can be found on the technical drawings in Appendix
B.
3.I. Photographs, if any, of pre-and post-installation examples
See appendix D (Photo 1,2,3,4)
3.J. If the Device is designed with an internal bypass, explain how the bypass only operates for
volumes greater than the design storm.
The bypass region of the FLEXSTORM FTC Insert is located above the perforated filter media. It only becomes
active should the basket become completely filled with storm water, trash, and debris. In these cases the water
spills over the side of the perforated baskets and is deemed to have entered bypass mode. Hydraulic
calculations for the bypass region of the FTC inserts can be found in Appendix E.
The engineer is responsible for confirming the ultimate bypass capacity of the FTC insert exceeds the design
flow to the catch basin for a chosen rain event.
4. Installation
4.A. Device installation procedures and considerations.
Installation into Standard Grated Drainage Structures:
Remove the grate from the casting or concrete drainage structure using a grate removal tool. Clean the ledge
(lip) of the casting frame or drainage structure to ensure it is free of stone and dirt. Lower the FLEXSTORM
insert through the clear opening and be sure the suspension hangers rest firmly on the support ledge of the
structure. Replace the grate and confirm it is elevated no more than 1/8”, which is the thickness of the steel
hangers. If there are gaps along the length of the concrete opening greater than 5 mm, loosen the adjustable
flange bolt and slide the flange flush with the concrete wall. Replace the grate.
Page | 8
Installation into Curb Inlets:
For curb inlet wall mount inserts, the basket profile size is 12” x 12” with lengths up to 48”. Lower the basket
into the catch basin through the manhole opening. Mark the wall mount support bracket locations on the
basin wall beneath the street/curb opening. Using a hammer drill install the provided wedge anchor bolts into
the concrete wall and secure the support brackets. Lift the FTC basket and engage the support brackets
allowing the basket to hang cantilevered off the wall for quick installation and removal. For multiple lengths on
longer curb openings, simply use the dual support brackets securing the baskets side by side to cover the
entire curb span. See Appendix B Design Drawings for more wall mount installation detail.
4.B. Methods for diagnosing and correcting installation errors.
ADS-FLEXSTORM offers standard sized configurations however there are instances where the catch basin
drainage structure has been customized or varies from typical designs. This is not an issue as long as the
dimensions are documented. ADS-FLEXSTORM can build FTC inserts for any catch basin Configuration.
Simply submit the proper field dimensional form: http://inletfilters.com/field-dimensional-order-forms
5. Operation and Maintenance Information
5.A. Device inspection procedures and inspection frequency considerations.
Upon inspection, the FLEXSTORM FTC insert should be emptied if the steel basket is more than half filled with
trash and debris, or as directed by the engineer, city, or municipal contract. Remove the grate and use a
vacuum truck or industrial vacuum to remove the trash and debris that has collected in the filter. Alternatively,
the basket may be lifted out of the drainage structure and trash emptied into a receptacle to be hauled away.
Remove any caked on trash and debris from the steel basket to ensure proper flow. When the basket is
cleaned the grate should be replaced onto the basin and maintenance logged.
5.B. Maintenance procedures, including a description of necessary equipment and materials.
FLEXSTORM FTC inspections should occur three times per year (every four months) in areas with year round
rainfall. Alternatively, maintenance guidelines per the awarded contract should be followed.
5.C. Maintenance frequency considerations, including effects of delay.
As with all storm water BMPs, inspection and maintenance must occur on a regular basis or the filtering
mechanism will be overloaded and rendered useless. In such a case, the filter baskets may become
completely filled with trash and debris until reaching the ultimate bypass which would still allow full water flow
but without filtration. Any trash entering the drainage structure may possibly escape directly into the sewer
system. Examples of overflowing trash in wall mounted curb inlets that were not maintained for several years
can be found in appendix D (photo 5, 6)
5.D. Device maintenance and vector control accessibility.
The FLEXSTORM FTC Inserts provide a bypass area with a minimum 2” opening to allow for vector control
insertion of mosquito pellets into the catch basin without requiring removal of the drop insert. The wall mounted
inserts provide little if any interference with vector control procedures for abatement in curb inlets.
Furthermore, the large 5 mm dia. openings in the filter screen will not accumulate standing water in the
baskets, which will discourage mosquito breeding.
Page | 9
6.0 Reliability Information:
6.A. Device sensitivity to loadings other than trash (ie leaves, sediment).
The FLEXSTORM FTC system is a very durable and robust frame and basket assembly that will not corrode or
break down even when subjected to heavy loading conditions, exposure to salt or chemicals, or during extreme
temperature conditions. The perforated steel basket is designed to remove and filter larger trash and debris
and is not recommended in areas where there is concern over capturing smaller particles or other
contaminants, such as hydrocarbons, nutrients, or heavy metals. FLEXSTORM offers media inserts to line
the inside and geotextile filters on the outside of the perforated steel baskets if higher removal rates for
targeted pollutants are required. The perforated screen openings will not prematurely blind like other
geoetextile filter elements so it is preferred where larger trash is targeted.
6.B. Warranty information.
The 304 stainless steel framing and basket materials along with product construction are warranted for a
period of 5 years from the date of installation. Replacement parts will be supplied at no charge to the end user
provided the inserts were installed properly for their intended use as a full trash capture device.
6.C. Applicant’s customer support.
ADS has a nationwide support team with local field representatives and product managers. The CA Product
Manager is Mike Reardan and he can be reached at 303 532-7490 or mike.reardan@ads-pipe.com
FLEXSTORM headquarters can address any engineering and design questions at 630 355-3288 or
info@inletfilters.com.
ADS website: www.ads-pipe.com/en
FLEXSTORM website: www.inletfilters.com
7. Field/Lab Testing Information and Analysis
7.A. Provide available field or lab testing information that demonstrates Device functionality and
performance.
Appendix A reviews the pilot study performed by Orange County, Fl. Additional data regarding performance
values for the catch basin inserts can be found in Appendix C and E.
Page | 10
Appendix A: Summary of Orange County Florida pilot program
Round FLEXSTORM FTC insert installed in the Town of
Windemere, FL in 2015 targeting trash and palm leaves
in a high traffic area. The ultimate bypass prevents
ponding should the basket become completely filled
prevented maximum flow through the perforated steel
basket.
Round FLEXSTORM FTC insert in an open throat application in Orange County, FL installed in June
2015. Inserts located in residential areas with minimal trash but a lot of tree and sediment runoff; organic
loading. Volume of inserts was 1.5 ft3. Orange County maintenance records are shown below over two
years.
Page | 11
Orange County, FL Maintenance Log of ADS-FLEXSTORM FTC Inserts:
Street Basket # Date of
Maintenance
Large
Particle %
Small
Particle % % Full Debris
Weight (LBS)
9220 South Bay Dr 92 11/6/2015 70% 30% 100% 57.6
9220 South Bay Dr 92 11/25/2015 70% 30% 100% 67.9
9220 South Bay Dr 92 1/11/2016 50% 50% 100% 63.9
9220 South Bay Dr 92 2/3/2016 70% 30% 100% 39.4
9220 South Bay Dr 92 2/29/2016 90% 10% 100% 39.4
9220 South Bay Dr 92 3/28/2016 70% 30% 100% 41.1
9220 South Bay Dr 92 5/25/2016 50% 50% 70% 48.6
9220 South Bay Dr 92 8/26/2016 70% 30% 60% 18.2
9220 South Bay Dr 92 9/27/2016 60% 40% 100% 28.1
9220 South Bay Dr 92 12/1/2016 70% 24.1
9220 South Bay Dr 92 1/30/2017 90% 10% 100% 42.9
9220 South Bay Dr 92 3/27/2017 100% 0% 100% 33.3
9220 South Bay Dr 92 4/27/2017 70% 30% 100% 25.3
9220 South Bay Dr 92 6/5/2017 50% 30% 100% 43.4
9220 South Bay Dr 92 6/30/2017 30% 70% 100% 33.9
9220 South Bay Dr 92 7/26/2017 0% 100% 100% 53.6
9220 South Bay Dr 92 9/27/2017 80% 20% 90% 43.4
9361 Cypress Cove Dr 91 11/6/2015 50% 50% 100% 95.4
9361 Cypress Cove Dr 91 11/25/2015 50% 50% 100% 73.1
9361 Cypress Cove Dr 91 1/11/2016 40% 10% 100% 54.1
9361 Cypress Cove Dr 91 2/3/2016 50% 50% 100% 24
9361 Cypress Cove Dr 91 2/29/2016 100% 0% 100% 46.9
9361 Cypress Cove Dr 91 3/28/2016 100% 0% 100% 32.7
9361 Cypress Cove Dr 91 5/25/2016 70% 30% 50% 34.9
9361 Cypress Cove Dr 91 8/26/2016 80% 20% 50% 16.4
9361 Cypress Cove Dr 91 9/27/2016 50% 50% 100% 37.4
9361 Cypress Cove Dr 91 12/1/2016 100% 41.6
9361 Cypress Cove Dr 91 1/30/2017 90% 10% 100% 45.6
9361 Cypress Cove Dr 91 3/27/2017 100% 0% 100% 22.9
9361 Cypress Cove Dr 91 4/27/2017 90% 10% 100% 13.6
9361 Cypress Cove Dr 91 6/5/2017 70% 30% 100% 27.6
9361 Cypress Cove Dr 91 6/30/2017 0% 100% 100% 41.5
9361 Cypress Cove Dr 91 7/26/2017 30% 70% 100% 37.5
9361 Cypress Cove Dr 91 9/27/2017 70% 30% 100% 65.5
Analysis: Average weight of debris for each service period was 41 lbs with 65% large particles > 1” dia. The
relatively small storage capacity of 1.5 ft3 required more frequent maintenance intervals. Average weight of
debris is 27 lbs./ft3. Our design criteria are based on 125 lbs/ft3 resulting in a loading design safety factor of 4.6.
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ADS-FLEXSTORM Full Trash Capture Inserts for Curb Inlets
FLEXSTORM Performance Specifications -Ful I Trash Capture
ADSP/N Curb Opening Bask.et Storage Volume Flow Rate when
Width (in) Depth (ft113) Empt\' (CFS)•
62HOWM36FTC 36 12" 2.7 17.8
62HOWM42FTC 42 12" 3.1 20.3
62HOWM48FTC 48 12" 3.6 22.8
62HOWM60FTC0 60 12" 4.S 27.9
62HDWM72fTc•• n 12" S.4 33.0
62HOWM84FTC .. 84 12" 6.3 37.6
62HOWM96FTC0 96 12" 7.2 42.7
621iOWM120FTC .. 120 12" 8.9 S2.4
* Calculated with .5' flowing water above centroid of ultimate bypass area
**Multiple filters of the same length placed side by side
Flow Rate when
SO'¼Full(CFS)♦
6.7
7.6
8.S
10.3
121
13.7
15.S
18.9
STAINLESS STEEL SUPPORT BRACKETS
(ANCHORED TO CATCH BASIN WALL}
14 GA SMM PERFORATED
STAINLESS STEEL BASKET
12 GA 304 STAINLESS
STEEL FRAMING
INSTALLATION AND MAINTENANCE INSTRUCTIONS
1. ENTER MANHOLE OPENING WITH INLET FILTER AND
MOUNTING HARDWARE
2. ALIGN FILTER FRAME WITH CURB OPENING AND MARK
CENTERLINE OF EACH FRAME HANGER BRACKET
3. USING SUPPLIED WALL MOUNT BRACKETS, MARK LOCATION
OF BRACKET SCREW HOLES SPACED 1" DOWN FROM TOP
LEDGE OF CONCRETE.
4. USING HAMMER DRILL, DRILL HOLE TO RECOMMENDED
DEPTH OF SPECIFIED FASTENER.
5. SECURE THE WALL MOUNT BRACKETS USING CONCRETE
FASTENERS AND HANG THE FLEXSTORM INLET ASSEMBLY.
6. FOR MAINTENANCE SERVICE WITH TRUCK MOUNTED
VACUUM.
ADS-FLEXSTORM FULL TRASH
CAPTURE FOR OPEN THROAT INLETS
SIZE
Page | 14
Appendix C: Hydraulic Calculations of Perforated Stainless Steel Basket
Example Flow Through calculation for 36 x 18 Stainless Steel Basket (62HD3618FTC):
Method for determining flow rate through 5mm perforated stainless steel baskets
In order to determine the flow rate through a perforated basket we first determine the total number of 5 mm
holes in the perforated steel basket. Then we determine a pressure difference in the water between the top of
the basket and the perforated holes. Then that pressure difference is used to calculate the flow rate of water
through a single 5 mm opening. That flow rate is multiplied by the total # of holes to give a flow rate for the
entire basket.
1. Determine the # of holes in a 36 x 18 perforated steel basket (62HD3618FTC)
The equation for the surface area of a rectangular prism with one open side:
L=33”, W=15.5”, H=12”
𝑆𝐴=2 ∗𝐿∗𝐻+2 ∗𝐻∗𝑉+𝐿∗𝑉=1675.5 �ℎ𝑛2
From physical measurements it was determined that there are 18 holes/�ℎ𝑛2 in the perforated material.
Therefore:
1675.5 �ℎ𝑛2 ∗18 �𝑛𝑙𝑒𝑠
�ℎ𝑛2 =30159 �𝑛𝑘𝑒𝑠 �ℎ𝑛 𝑠�𝑒 62𝐻𝐶3618𝐹𝑆𝐶 𝑎𝑎𝑠𝑘𝑒𝑠
2. Determine the flow rate of water through a 5 mm orifice:
To determine the flow rate through a 5 mm opening we first Determine the pressure difference of water before
and after it flow through the orifice. It is assumed that once the water exits the perforated opening it has a
pressure equal to sea level (101.325 kPa). Before exiting the orifice it is assumed the water has a pressure
equal to depth of the basket opening beneath the curb line (102.857 kPa). Using the formula shown below we
are able to convert that pressure difference into a flow rate.
L
H
W
Page | 15
Plugging those values into the formula yields a water flow rate per opening of .313648 GPM or .0006988
CFS/hole.
Finally, we multiply the total # of holes in the 62HD3618FTC basket by the flow rate of water per hole:
.0006988 CFS/hole*30159 holes = 20.8 CFS through the basket when empty.
To determine the flow through of the basket when it is 50% full with material we make a change to the surface
area calculation. Since it is assumed that 50% of the side walls and the bottom of the basket is blocked with
debris the surface area equation becomes:
𝑆𝐴=2 ∗𝐿∗𝐻/2 +2 ∗𝐻/2 ∗𝑉=588 �ℎ𝑛2
Multiplying that surface area by the # of openings per square inch and the flow rate through each hole yields:
588 �ℎ𝑛2 ∗18 �𝑛𝑙𝑒𝑠
�ℎ𝑛2 ∗.006988 𝐶𝐹𝑆
�𝑛𝑙𝑒= 7.3 CFS
Therefore, when 50% filled or blocked with debris the 62HD3618FTC is expected to have a water flow through
rate of 7.3 CFS.
Page | 16
Appendix D: Photo Gallery
Photo 5: Philadelphia Water Dept. Wall
Mount Filter where service was overdue
Photo 6: Improperly maintained Open Throat Curb
Inlet Filter in Pueblo, Colorado.
Photos 1,2: FTC inserts shown before installation into a catch basin
Photos 3,4: FTC inserts shown during installation into a catch basin
Page | 17
Appendix E: Hydraulic Calculations of Ultimate Bypass Region
Example Bypass calculation for 36 x 18 Stainless Steel Basket (62HD3618FTC):
Flow through the Ultimate Bypass Area is calculated with the same equations as flow through an orifice.
𝑄�ℎ=𝐶∗𝐴∗𝑉
Q =Flow through an orifice in𝑒3
𝑠, C=Coefficient of discharge from opening (assumed to be .67 for bypass area),
A= Area of the orifice (𝑒𝑠2), and V=Velocity of water as it passes through the orifice (𝑒𝑠/𝑠).
Velocity can be expanded: V=√2 ∗𝑒∗�
g=acceleration due to gravity (32.2𝑒𝑠/𝑠2), h=height of water above centroid of orifice’s opening (ft) (6”)
Therefore, flow through the bypass area can be written as 𝑄=𝐶𝐴√2𝑒�
Calculate Square Area of ultimate Bypass Area:
A=2(𝐻1 ∗𝐿1)+2(𝐻2 ∗𝐿2)
Where H is the height of the bypass opening and L is the Length of the Bypass Opening. For the
62HD3624FTC:𝐻1 =2",L1 =32",𝐻2 =1",𝐿2 =12".
A=2*(2*34)+2*(1.5*16)=152 �ℎ𝑛2=>1.06 𝑒𝑠2
Calculate velocity of flow as it passes through the bypass area:
𝑉=𝐶√2𝑒�=.67√2 ∗32.2 𝑒𝑠
𝑠2 ∗.5 𝑒𝑠=3.8 𝑒𝑠/𝑠 Therefore,
𝑄=𝐶𝐴√2𝑒� = 1.06 𝑒𝑠2 ∗3.8 𝑒𝑠
𝑠=4.0 𝐶𝐹𝑆 Ultimate Bypass Capacity
Based on the above calculation it can be shown that with .33ft of water over the grate a 62HD3624FTC will
bypass 4.0 CFS of water through the ultimate bypass framing.
Bypass area
21.00 12.50
10.75
CONNECTOR PIPE
CATCH BASIN WALL
CPS
SUPPORT HOOPS
PERFORATED MESH SCREEN
DEFLECTOR PLATE ASSEMBLY
HINGED LID
WALL BRACKET
NOTES: ALL COMPONETS SHALL BE MANUFACTURED FROM 1.GRADE 304 STAINLESS STEEL.PERFORATED MESH SCREEN SHALL BE 14GA, 304 2.STAINLESS STEEL, 3/16" (5MM) MAX HOLE SIZE, 45% MINIMUM OPEN AREA.THE DEFLECTOR PLATE ASSEMBLY MAY BE 3.NECESSARY FOR APPLICATIONS WITH FLOW ENTERING DIRECTLY ABOVE THE CPS.
This table lists commonly specified standard model sizes. Additional standard model sizes and custom sizes are available. 1. The "Width" dimension indicates the distance from the inner most edges of the screen that span the connector pipe.2. The "Screen Length" is the total perimeter dimension of the screen that encompasses the connector pipe. 3. The "Screen Area" is the product of the "Screen Length" and "Screen Height" with no consideration for open space. 4. The "Net Open Screen Area" is based on a 14Ga, 304SS Perforated Screen With 3/16" Hole Size And 45% Minimum Open Area. 5. MTFR utilizes an orifice coefficient (C) of 0.60 and an approximated upstream/downstream head differential across the screen of 2/3 of the maximum screen height. The listed MTFR has a safety factor (SF) of 2X applied. 6. The "Trash Storage Capacity" utilizes a catch basin size of 14'-0" X 3'-2" and a maximum trash level of 40% of the maximum screen height. Different size catch basins will yield different values for Trash Storage Capacity. 7. The "Bypass Capacity" assumes a maximum water elevation above the top of the screen of 1ft. The Bypass Capacity will vary with the water level above the top of the screen.
SCALE: NTSISOMETRIC VIEW - CPS/DEFLECTOR PLATE
SCALE: NTS
TOP SECTION VIEW - CPS/CATCH BASIN
BWCPS-L-0001 SHEET 1 OF 5
www.wearebrightwater.com
SCALE: 1:12 REVDWG. NO.SIZE
CONNECTOR PIPE SCREEN"L" CONFIGURATION
NAME DATE
Q.A.
MFG APPR.
ENG APPR.
CHECKED
DRAWN
FINISHDO NOT SCALE DRAWING
DIMENSIONS ARE IN INCHES
TOLERANCES:FRACTIONAL 1/32
ANGULAR: MACH 0.5 DEG BEND 1.0 DEGTWO PLACE DECIMAL 0.30
THREE PLACE DECIMAL 0.020
PROPRIETARY AND CONFIDENTIAL
5 4 3 2 1
UNLESS OTHERWISE SPECIFIED:
THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF BRIGHTWATER. ANY REPORODUCTION IN PART OR AS A WHOLE WITHOUT THE WRTEEN PERMISSION OF BRIGHTWATER IS PROHIBTED.A
TITLE:
A
P.O. Box 85430 | San Diego, California 92186 | (619) 821-1558
304 STAINLESS STEEL
MAH
EDK
CMK
IAM
JGR 01/17/2020
01/24/2020
01/24/2020
02/04/2020
02/06/2020
HINGED LID
PERFORATED MESH SCREEN
DEFLECTOR PLATE ASSEMBLY
SUPPORT HOOPS
WALL BRACKET
24.00
27.50
12.25
CPS
ISOMETRIC VIEW - CPS/DEFLECTOR PLATE
SCALE: NTS
SCALE: NTS
TOP SECTION VIEW - CPS/CATCH BASIN
CONNECTOR PIPE
CATCH BASIN WALL
NOTES: ALL COMPONETS SHALL BE MANUFACTURED FROM 1.GRADE 304 STAINLESS STEEL.PERFORATED MESH SCREEN SHALL BE 14GA, 304 2.STAINLESS STEEL, 3/16" (5MM) MAX HOLE SIZE, 45% MINIMUM OPEN AREA.THE DEFLECTOR PLATE ASSEMBLY MAY BE 3.NECESSARY FOR APPLICATIONS WITH FLOW ENTERING DIRECTLY ABOVE THE CPS.
This table lists commonly specified standard model sizes. Additional standard model sizes and custom sizes are available. 1. The "Width" dimension indicates the distance from the inner most edges of the screen that span the connector pipe.2. The "Screen Length" is the total perimeter dimension of the screen that encompasses the connector pipe. 3. The "Screen Area" is the product of the "Screen Length" and "Screen Height" with no consideration for open space. 4. The "Net Open Screen Area" is based on a 14Ga, 304SS Perforated Screen With 3/16" Hole Size And 45% Minimum Open Area. 5. MTFR utilizes an orifice coefficient (C) of 0.60 and an approximated upstream/downstream head differential across the screen of 2/3 of the maximum screen height. The listed MTFR has a safety factor (SF) of 2X applied. 6. The "Trash Storage Capacity" utilizes a catch basin size of 14'-0" X 3'-2" and a maximum trash level of 40% of the maximum screen height. Different size catch basins will yield different values for Trash Storage Capacity. 7. The "Bypass Capacity" assumes a maximum water elevation above the top of the screen of 1ft. The Bypass Capacity will vary with the water level above the top of the screen.
BWCPS-U-0001 SHEET 2 OF 5
www.wearebrightwater.com
SCALE: 1:12 REVDWG. NO.SIZE
CONNECTOR PIPE SCREEN"U" CONFIGURATION
NAME DATE
Q.A.
MFG APPR.
ENG APPR.
CHECKED
DRAWN
FINISHDO NOT SCALE DRAWING
DIMENSIONS ARE IN INCHES
TOLERANCES:FRACTIONAL 1/32
ANGULAR: MACH 0.5 DEG BEND 1.0 DEGTWO PLACE DECIMAL 0.30
THREE PLACE DECIMAL 0.020
PROPRIETARY AND CONFIDENTIAL
5 4 3 2 1
UNLESS OTHERWISE SPECIFIED:
THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF BRIGHTWATER. ANY REPORODUCTION IN PART OR AS A WHOLE WITHOUT THE WRTEEN PERMISSION OF BRIGHTWATER IS PROHIBTED.A
TITLE:
A
P.O. Box 85430 | San Diego, California 92186 | (619) 821-1558
304 STAINLESS STEEL
MAH
EDK
CMK
IAM
JGR 01/17/2020
01/24/2020
01/24/2020
02/04/2020
02/06/2020
~WI~ i ~ Bright Water Inspection & Maintenance Guide
for Connector Pipe Screens
Inspection and Maintenance Guide
For more information, please contact customerservice@wearebrightwater.com
P.O. Box 85430 I San Diego, California 92186 I (619) 821-1558 I www.wearebrightwater.com
Inspection & Maintenance Guide
for Connector Pipe Screen s
OVERVIEW:
The BrightWater™ Connector Pipe Screen (CPS) is a post-construction, stormwater Best
Management Practice (BMP) designed to capture 100% of trash and debris 5mm and larger in
size from stormwater systems. The device, which consists of a metal screen and mounting
framework, installs in front of the outlet pipe (connector pipe) of a curb inlet or drop inlet catch
basin and screens for gross pollutants such as trash and debris effectively converting an
existing or new catch basin into a treatment device. The Device is typically implemented to
comply with Federal, State, and Local Clean Water Act regulations and Full Trash Capture
compliance. To ensure proper function of the Device and continued protection of the receiving
water bodies, the Device must be regularly inspected and maintained. These requirements to
inspect and maintain apply to all stormwater BMPs regardless of type, function or even brand.
This guideline contains recommendations and requirements for the inspection and
maintenance specific to the BrightWater™ Connector Pipe Screen.
CURB INLET
OPENING
GUTTER
CURB
BRIGHTWATER™ CONNECTOR
PIPE SCREEN INSTALLED IN A
CURB INLET STYLE CATCH
CURB INLET
CATCH BASIN
MANHOLE
4--~---covER
CONNECTOR
PIPE SCREEN
Figure 1-Brightwater™ Connector Pipe Screen Diagram
INSPECTION OVERVIEW:
A thorough inspection program is necessary to ensure the treatment Device is operating as
intended and providing the necessary pollutant removal. An actively practiced inspection
program can also minimize unnecessary maintenance and provide insight to the status of the
For more information, please contact customerservice@wearebrightwater.com
P.O. Box 85430 I San Diego, California 92186 I (619) 821-1558 I www.wearebrightwater.com
2
(~, ! Bright Water ,~~
Inspection & Maintenance Guide
for Connector Pipe Screens
receiving water bod ies. An inspection program should be structured based on the type of
treatment Device as well as the location and function of the treatment Device. It is critical to
closely monitor and document the first year of operation after initial installation in order to
develop a long term maintenance plan for the Device that is consistent with the environmental
requirements of the installation .
INSPECTION FREQUENCY AND TIMING:
The BrightWater™ Connector Pipe Screen should be inspected on a routine and recurring
basis. The frequency and timing of the inspections can be variable based on the configuration
of the Device, location of the Device wi thin the drainage system, and the geographic region of
installation. During the first year of operation, after initial installation, the Connector Pipe
Screen should be inspected more frequently to create a baseline of understanding for operation
of the Device. Subsequent years of operation can have reduced inspection provided no
anomalous events occu r during the year.
• First Year Inspection -A minimum of three inspections in the first year are recommended.
The first inspection should occur on or around the start of the rainy season with the last
inspection occurring on or around the end of the rainy season. If the region of installation
has no definitive rainy season, inspections should be spaced evenly throughout the year.
Maintenance visits may coincide with inspection visits.
• Second Year and Subsequent Year Inspections -A minimum of two inspections per year
are recommended. The first inspection should occur on or around the start of the rainy
season and the final inspection should occur on or around the end of the rainy season.
If the region of installation has no definitive rain y season, inspections should be spaced
evenly throughout the year. If during the first year inspection the Device and/or location
is determined have high pollutant loadings or atypical loadings of sediment, trash and
debris, add itional inspections may be necessary. Maintenance visits may coincide with
inspection visits.
INSPECTION EQUIPMENT:
The following equipment and tools are recommended to facilitate inspection of the
BrightWater™ Connector Pipe Screen:
3
• Personal Protective Equipment (PPE) including but not limited to pants, long sleeve shirt,
boots, gloves, eye protection, hearing protection, head protection, and high visibility
safety vest.
• Work Zone safety equipment including but not limited to safety cones, street barricades,
traffic control signage, and open manhole barricades.
For more information, please contact customerservice@wearebrightwater.com
P.O. Box 85430 I San Diego, California 92186 I (619) 821-1558 I www.wearebrightwater.com
• Manhole Hook/Removal Tool or similar.
• Flashlight.
• Tape Measure.
• Digital Camera.
Inspection & Maintenance Guide
for Connector Pipe Screen s
• A treatment Device Inspection and Maintenance form for documenting the inspection
visit. (A BrightWater™ Inspection and Maintenance form is included with this document.)
INSPECTION PROCEDURES:
The BrightWater™ Connector Pipe Screen can be inspected without entry into the catch basin.
The Inspection should begin by preparing and installing all safety measures followed by the
inspection and documentation. Specific procedures for the inspection are detailed below:
4
• Adorn all PPE and prepare documentation equipment.
• Install all Work Zone safety equipment and conduct a brief safety meeting. Work Zone
safety equipment should protect the inspector(s) from vehicular traffic and should also
isolate and protect pedestrians and vehicles from the work zone.
• Remove the manhole cover utilizing the manhole puller/remover and safely set aside out
of the way of the inspection operations and pedestrians or vehicles.
• Inspect the gutter, curb face, and curb opening. -The areas outside of the catch basin
should be free from debris, obstructions and standing water. The presence of any of
these conditions outside of the catch basin are potential indicators of maintenance that
may be necessary for the Connector Pipe Screen. If any of these maintenance indicators
are encountered they should be documented and , depending on severity, should be
rectified through recommended maintenance. Maintenance may occur simultaneously
with inspection provided the maintenance indicators have already been documented.
• Utilizing a flashlight, inspect the interior of the catch basin -Once outfitted with a
Connector Pipe Screen, the interior of the catch basin is converted into a stormwater
treatment device and acts as both the treatment and storage vessel for pollutants.
For more information, please contact customerservice@wearebrightwater.com
P.O. Box 85430 I San Diego, California 92186 I (619) 821-1558 I www.wearebrightwater.com
(~, ! Bright Water ,~~
Inspection & Maintenance Guide
for Connector Pipe Screens
Pollutants such as trash , debris, and sediment are expected to be captured inside of the
catch basin. The presence of such pollutants are indicators the Device is operating as
intended. Conversely, the lack of such pollutants present in the Device may be an
indicator that the Device or stormwater system is not functioning as intended. The
quantities of pollutants should be documented and compared with the maximum
capacities for the Device and maintenance recommended as necessary.
• Inspect the area behind the CPS and the Connector pipe. - The area behind the
Connector Pipe Screen and the Connector Pipe itself should be free from debris,
obstructions, and standing water. The presence of any of these conditions downstream
of the treatment Device are potential indicators of maintenance that may be necessary
for th e Connector Pipe Screen treatment system. If any of these ma intenance indicators
are encountered , they should be documented and depending on the severity, shou ld be
rectified through recommended maintenance. Maintenance may occur simultaneously
with inspection provided the maintenance indicators have already been documented.
• Inspect the Connector Pipe Screen for physical or structural anomalies. -The CPS
shou ld be firmly mounted to the catch basin wall and floor and there should be no loose
or missing hardware. No gaps in excess of 5mm should be present. Bent, Broken, or
otherwise damaged structural components should documented and maintained.
• Finalize the Documentation and Inspection Form - Photograph the conditions of interior
and exterior of the catch basin and Connector Pipe Screen. Document the inspection
event utilizing the Treatment Device Inspection Form included with this manual or similar.
The presence of standing water or vector such as mosqu itos should be highlighted in the
inspection form. The local vector control agency should be notified if mosquitos are
present in the catch basin or treatment Device.
• Replace the manhole cover and remove all Work Zon e Safety Equipment.
* Confined Space Entry is typically not required for routine inspections of standard installations. Confined space
entry protocol should be followed should circumstances require entry into the catch basin for inspection.
MAINTENANCE OVERVIEW:
To ensure proper function of the BrightWater™ Connector Pipe Screen and to ensure continued
protection of the receivi ng water bodies, the Device must be regularly maintained . A
maintenance program should be structured based on the type of treatment Device as wel l as
the location and function of the treatment Device. It is also important to incorporate data
received from the inspection program into the maintenance recommendations to ensure proper
function but also to minimize unnecessary maintenance. It is important to recognize that
maintenance operations include a wide variety of operations and not all operations have to
occur during each maintenance cycle. Maintenance may consist solely of trash and de bris
For more information, please contact customerservice@wearebrightwater.com
P.O. Box 85430 I San Diego, California 92186 I (619) 821-1558 I www.wearebrightwater.com
5
(~, ! Bright Water ,~~
Inspection & Maintenance Guide
for Connector Pipe Screens
removal or may consist of repair and replacement of components. A customized maintenance
program provides the most benefit to operation while minimizing maintenance costs.
MAINTENANCE FREQUENCY AND TIMING:
BrightWater™ Connector Pipe Screens should be maintained on a routine and recurring basis.
The frequency and timing of the maintenance can be variable based on the configuration of the
Device, location of the Device within the drainage system, and the geographic region of
installation. During the first year of operation, after initial installation, the Connector Pipe
Screen may need to be maintained more frequently to create a baseline of understanding for
operation of the Device. Subsequent years of operation may have reduced maintenance
provided no anomalous events occu r during the year.
• First Year Maintenance -A minimum of three maintenance visits in the first year are
recommended. The first maintenance visit should occur on or around the start of the
rainy season with the last maintenance visit occurring on or around the end of the rainy
season. If the region of installation has no definitive rainy season, maintenance visits
shou ld be spaced evenly throughout the year. Maintenance visits may coincide with
inspection visits.
• Second Year and Subsequent Year Maintenance -A minimum of two maintenance visits
per year are recommended. The first maintenance visit should occur on or around the
start of the rainy season and the final maintenance visit should occur on or around the
end of the rainy season. If the region of installation has no definitive rainy season,
maintenance visits should be spaced evenly throughout the year. If during the first year
inspection the Device and/or location is determined have high pollutant load ings or
atypical loadings of sediment, trash and debris, additional maintenance visits may be
necessary. Maintenance visits may coincide with inspection visits.
MAINTENANCE EQUIPMENT:
The following equipment and tools are recommended to facilitate maintenance of the
BrightWater™ Connector Pipe Screen:
6
• Personal Protective Equipment (PPE) including but not limited to pants, long sleeve shirt,
boots, gloves, eye protection, hearing protection, head protection, and high visibility
safety vest.
• Work Zone safety equipment including but not limited to safety cones, street barricades,
traffic control signage, and open manhole barricades.
• Manhole Hook/Removal Tool or similar.
• Flashlight.
For more information, please contact customerservice@wearebrightwater.com
P.O. Box 85430 I San Diego, California 92186 I (619) 821-1558 I www.wearebrightwater.com
• Tape Measure.
• Digital Camera.
Inspection & Maintenance Guide
for Connector Pipe Screen s
• Small hand tools such as wrenches, screw drivers , and socket set.
• Industrial Vacuum (Truck mounted, trailer mounted, or portable)
• A treatment Device Inspection and Maintenance form for documenting the inspection
visit. (A BrightWater™ Inspection and Maintenance form is included with this document.)
MAINTENANCE PROCEDURES:
The BrightWater™ Connector Pipe Screen can be routinely maintained without entry into the
catch basin for most applications. Maintenance should begin by preparing and installing all
safety measures followed by Inspection and documentation. Specific procedures for
Maintenance are detailed below:
7
• Adorn all PPE and prepare documentation equipment.
• Install all Work Zone safety equipment and conduct a brief safety meeting. Work Zone
safety equipment should protect the maintenance personnel from vehicular traffic and
should also isolate and protect pedestrians and vehicles from the work zone.
• Remove the manhole cover utilizing the manhole puller/remover and safely set aside out
of the way of the inspection operations and pedestrians or vehicles.
• If during inspection it is determined the accumulated trash , debris, and sediment requires
removal, an industrial vacuum should be utilized to remove the material. Using a reduced
diameter suction hose, vacuum the trash, debris, and sediment from the interior of the
catch basin. Figure 2 and Figure 3 illustrate typical maintenance scenarios. The suction
hose is inserted through the manhole opening as illustrated in Figure 2 and Figure 3.
The suction hose should be maneuvered around within the interior of the catch basin
removing all trash, debris, and sediment. A pressure washing wand may be utilized to
assist this process by freeing stubborn and clogged material from the screen of the
Device. The suction hose should remain inside the catch basin at the front edge of the
screen while the Device is being washed down.
For more information, please contact customerservice@wearebrightwater.com
P.O. Box 85430 I San Diego, California 92186 I (619) 821-1558 I www.wearebrightwater.com
8
BRIGHTWATER™
CONNECTOR PIPE SCREEN
MAINTENANCE -SCENARIO 1
CURB INLET ~
OPENING
INDUST RIAL
VACUUM
HOSE
CURB INLET
CATCH BASIN
Inspection & Maintenance Guide
for Connector Pipe Screens
MANHOLE
OPENING
CONNECTOR
PIPE SCREEN
OUTLET
PIPE
Figure 2 -Brightwater™ Connector Pipe Screen Maintenance Scenario 1
BRIGHTWATER™
CONNECTOR PIPE SCREEN
MAINTENANCE -SCENARIO 2
DEFLECTOR
PLATE
ASSEMBLY
CONNECTOR
PIPE SCREEN
OUTLET
Pl PE --------c
Figure 3 -Brightwater™ Connector Pipe Screen Maintenance Scenario 2
-INDUSTRIAL
VACUUM
HOSE
MANHOLE
OPENING
CURB INLET
CATCH BASIN
For more information, please contact customerservice@wearebrightwater.com
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9
(~, ! Bright Water ,~~
Inspection & Maintenance Guide
for Connector Pipe Screens
• Trash and debris may accumulate on the top of the Deflector Plate Assembly. (See
Figure 3.) This material should be removed during the maintenance visit by either
utilizing the vacuum hose directly on top of the Deflector Plate or by utilizing the pressure
washing wand to rinse the material from the Deflector Plate onto the floor of the catch
basin where the vacuum hose can suck the material up.
• Removed trash, debris, and sediment should be disposed of following local, state, and
federal guidelines. Typically this material is considered non-hazardous waste and can
be disposed of in the standard waste stream. If oil and grease are determined to be
present amongst the trash, debris, and sediment, the material should be disposed of
following local, state, and federal guidelines. Depending on oil content, this material may
be classified as hazardous waste and should be disposed of according to local, state,
and federal guidelines.
• Finalize the Documentation and Maintenance Form -Photograph the conditions of
interior and exterior of the catch basin and Connector Pipe Screen. Document the
maintenance event utilizing the Treatment Device Inspection Form included with this
manual or similar. The presence of standing water or vector such as mosquitos should
be highlighted in the maintenance form. The local vector control agency should be
notified if mosquitos are present in the catch basin or treatment Device.
• Replace the manhole cover and remove all Work Zone Safety Equipment.
For more information, please contact customerservice@wearebrightwater.com
P.O. Box 85430 I San Diego, California 92186 I (619) 821-1558 I www.wearebrightwater.com
(\ Bright Water ~~~
Inspection & Maintenance Guide
for Connector Pipe Screens
INSPECTION & MAINTENANCE FORM
Site Name:
Site Address:
(City) (State) (Zip Code)
NPDES Tracking No.
Owner/Operator Name:
Site Contact:
Phone: ( ) -Email:
Inspector Name:
Phone: ( ) -Email:
Date of Visit: I I Time of Visit: AM /PM
Type of Visit:□ Scheduled 1J Pre-Storm □ During Storm = Post-Storm □ Emergency
Visit Purpose:□ I nspection □ Maintenance □ Both
BMP BMP Location Trash Debris Sediment Screen Structure General Condition of BMP
ID (Site Map or GPS Load Load Load Condition Condition Corrective Action Required or Performed Coordinates) (yd3) (yd3) (yd3)
(Continued on next page )
For more information, please contact customerservice@wearebrightwater.com
P.O. Box 85430 I San Diego, California 92186 I (619) 821-1558 I www.wearebrightwater.com
10
(\ Bright Water ~~~
Inspection & Maintenance Guide
for Connector Pipe Screens
BMP BMP Location
ID (Site Map or GPS
Coordinates)
INSPECTION & MAINTENANCE FORM
(Continued)
Trash Debris Sediment Screen Structure General Condition of BMP Load Load Load Condition Condition Corrective Action Required or Performed (yd3) (yd3) (yd3)
CERTIFICATION STATEMENT
"I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with
a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of
the person or persons who manage the system, or those persons directly responsible for gathering the information, the information
submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and imprisonment for knowing violations."
Print name and tit le: ---------------------------------
Signature: _________________________ Date: ________ _
For more information, please contact customerservice@wearebrightwater.com
P.O. Box 85430 I San Diego, California 92186 I (619) 821-1558 I www.wearebrightwater.com
11
ATTACHMENT 3
City standard Trash Capture BMP Exhibit
[Use the City's standard Trash Capture BMP Plan.]
12"TD
12"TD
12"TD
12"TD
18"TD
18"TD
16"TP
16"TP
12"TD12"TD
12"TD
12"TD
12"TD
12"TD
12"TD
12"TD
8"TD
12"TD
8"TD
10"TD
D
S
S
S
E
C
C
C
C
X
X
X
X
X
X
X
X
X
X
X
X
X
TP8"5
TP8"5
TP8"5
E
EX
X X
X
X
XXXXX
X
8"TD
8"TD
8"TD 8"TD
6"TD
8"TD
8"TD6"TD
6"TD
12"TD
10"TD
6"TD6"TD
10"TD
8"TD
8"TD
8"TD8"TD 8"TD
8"TD
12"TD
8"TD
16"TD
8"TD
8"TD
8"TD
20"TD
20"TD
32"TD
24"TP
24"TP
24"TP
28"TP
SD
SD
SD
SD
SD
SD
SD
SD SD
SD
SD SD SD
RU
T
H
E
R
F
O
R
D
R
D
FARAD
A
Y
A
V
E
CO
L
L
E
G
E
B
L
V
D
LOT 51
MAP 11811
LOT 60
MAP 11811
LOT 61
MAP 11811
R/W
C/L
R/W
C/L
R/W
C/
L
R/
W
P/L
P/L
LOT 50
MAP 11811
EXISTING BUILDING
255
256
257
258
259
255
256
257
255
255
257
255
265
260
2
3
1
GRAPHIC SCALE: 1" = 50'
0 50 100 150
SINGLE SHEET TRASH CAPTURE BMP SITE PLAN
SCALE 1" = 50'
BMP TYPEBMP ID #SYMBOL COC NO.DRAWING NO.SHEET NO.(S)MAINTENANCE
FREQUENCY
BMP TABLE
BMP NOTES:PARTY RESPONSIBLE FOR MAINTENANCE:
NAME
ADDRESS
PHONE NO.
CONTACT
PLAN PREPARED BY:
NAME
ADDRESS
PHONE NO.
CERTIFICATION
COMPANY
INSPECTION
FREQUENCYQUANTITY
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.
GREGORY W. LANG
PASCO LARET SUITER AND ASSOCIATES
119 ABERDEEN DRIVE
CARDIFF, CA 92007
(858) 259 8212
2081 FARADAY
FLEXSTORM FULL
INLET FILTER
(62HD3624FTC)
3 1
2081 FARDAY AVENUE
CARLSBAD, CA 92008
TRASH CAPTURE
SEMI-ANNUALLYQUARTERLY
NOT TO SCALE
FLEXSTORM TRASH CAPTURE A
1 1 SEMI-ANNUALLYQUARTERLY
1.THESE BMPS ARE MANDATORY TO BE INSTALLED PER
MANUFACTURER'S RECOMMENDATIONS 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.
5.REFER TO MAINTENANCE AGREEMENT DOCUMENT.
6.SEE PROJECT SWQMP FOR ADDITIONAL INFORMATION.
BRIGHTWATER
CONNECTOR PIPE
SCREEN
(BWCPS-2118L)
REVIEWED BY:
DATEINSPECTOR
DATE
RVWD BY:
INITIALDATE
SHEET SHEETS
APPROVED: JASON S. GELDERT
DWN BY:
CHKD BY:
PROJECT NO.DRAWING NO.DATE INITIAL
ENGINEER OF WORK
DATE INITIAL
CITY APPROVALREVISION DESCRIPTION
ENGINEERING DEPARTMENT
RCE EXP.
ENGINEERING MANAGER RCE 63912 EXPIRES 9/30/26 DATE
PRECISE GRADING PLANS FOR:
GREGORY W. LANG, P.E.
R.C.E. NO. 68075 EXP. 06-30-25
DATE
LOTS 50 & 51, CT 85-24, MAP 11811
SINGLE SHEET BMP SITE PLAN
PD 2024-0023 350-3A
6
JT
OTHER APPROVAL
CITY OF CARLSBAD
"AS BUILT"
4/2/25
6
PLSA04/02/25 4 NEW SHEET
350-3A 5
350-3A 5TRASH
CAPTURE
TRASH
CAPTURE
PD 457
GRADING PLANS FOR:
2 1 SEMI-ANNUALLYQUARTERLY
BRIGHTWATER
CONNECTOR PIPE
SCREEN
(BWCPS-2424U)
350-3A 5TRASH
CAPTURE
NOT TO SCALE
CONNECTOR PIPE SCREEN TRASH CAPTURE A
REVIEWED BY:
DATEINSPECTOR
DATE
RVWD BY:
INITIALDATE
SHEET SHEETS
APPROVED: JASON S. GELDERT
DWN BY:
CHKD BY:
PROJECT NO.DRAWING NO.DATE INITIAL
ENGINEER OF WORK
DATE INITIAL
CITY APPROVALREVISION DESCRIPTION
ENGINEERING DEPARTMENT
RCE EXP.
ENGINEERING MANAGER RCE 63912 EXPIRES 9/30/26 DATE
PRECISE GRADING PLANS FOR:
GREGORY W. LANG, P.E.
R.C.E. NO. 68075 EXP. 06-30-25
DATE
LOTS 50 & 51, CT 85-24, MAP 11811
SINGLE SHEET BMP SITE PLAN
PD 2024-0023 350-3A
6
JT
OTHER APPROVAL
CITY OF CARLSBAD
"AS BUILT"
4/2/25
6
PLSA04/02/25 4 NEW SHEET
PD 457
GRADING PLANS FOR: