Prepared for the Safe Clean Water Program
Los Angeles County Flood Control District
Thomas Bekele
Director of Public Works
2175 Cherry Ave.
Signal Hill, CA 90755
February 1, 2025
City of Signal Hill
Reservoir Park Stormwater
Capture Project
Scope of Work
City of Signal Hill Reservoir Park Stormwater Capture Project SCWP Scope of Work SCWP Regional Program Agreement No. xxxxxxxxxxxxxx 1
Project Information
Project Name: Reservoir Park Stormwater Capture Project SCW Watershed Area: Lower San Gabriel River
SIP Funding Program: Infrastructure Program
Call for Projects Cycle: Round 5, FY 2024-2025
Funding Requested: $6,676,878
A-1 Budget Plan
Summary of leveraged funds: The Los Cerritos Channel (LCC) Watershed Management Group contributed $92,244 for the initial feasibility study for the project and is not reflected in the total Safe, Clean Water funded amount of $6,676,878.
Table 1: Budget Plan
Fiscal
Year
SCW Program
Contribution Funded Activity
FY 24-25 $951,843
• Final Design (30/60/90/100) ($768,823), including the following:
• Project Management ($56,137)
• Preparation and processing of applicable environmental documentation and permits ($76,882)
• Stakeholder and community outreach/engagement
($50,000)
• Design of the subsurface infiltration gallery and dry well • Development of the O&M Plan
• Development of the Post-Construction Monitoring Plan
• Development of the Vector Minimization Plan
FY 25-26 $1,918,345 • Receive construction disbursement #1 ($1,918,345) • Completion of any remaining items from above.
FY 26-27 $1,903,345 • Receive construction disbursement #2 ($1,903,345) • Completion of any remaining items from above.
FY 27-28 $1,903,345
• Receive construction disbursement #3 ($1,903,345)
• Construction of the subsurface infiltration gallery and dry well, including the following:
• Construction capital costs ($5,125,487)
• Construction administration and design support ($512,549) • Construction survey ($15,000)
• Agency management construction ($72,000)
• Completion of any remaining items from above.
Total $6,676,878 $6,676,878
City of Signal Hill Reservoir Park Stormwater Capture Project SCWP Scope of Work SCWP Regional Program Agreement No. xxxxxxxxxxxxxx 2
A-2 SCW Program Goals
The project and Budget Plan are consistent with the SCW Program Goals per Chapter 18, Section 4 of the LACFCD Code. See the table below for further information.
Table 2: SCW Program Goals
Goal Method of Achievement
A. Improve water quality and contribute to
attainment of water-quality requirements.
The project will entail the construction of a 0.5 acrefoot capacity storage/infiltration facility under the existing park. It will manage runoff from a drainage area of 184 acres within the Cities of Signal Hill and Long
Beach, and will capture and mitigate 100% of the 85th
percentile storm (5.58 ac-ft). Infiltration of water into the subsurface gallery and eventually the water table
will facilitate pollutant removal. A supplementary filter system will provide pollutant removal prior to
infiltration.
B. Increase drought preparedness by capturing
more Stormwater and/or Urban Runoff to
store, clean, reuse, and/or recharge
groundwater basins.
Infiltration rates (0.3 in/hr) are adequate and will
augment water supply by approximately 5.58 acre-feet
on an average daily basis (i.e. estimated 24-hour Storm Capacity).
C. Improve public health by preventing and
cleaning up contaminated water, increasing
access to open space, providing additional
recreational opportunities, and helping
communities mitigate and adapt to the effects
of climate change through activities such as
increasing shade and green space.
See response above. Additionally, the project will
enhance recreational activities at the park through
installing new permeable walkways, a community
garden, and native vegetation/habitat for birds and
butterflies. The project will also help communities
mitigate and adapt to the effects of climate change
through the planting of native trees and select
vegetation.
D. Leverage other funding sources to maximize
SCW Program Goals.
The Los Cerritos Channel (LCC) Watershed
Management Group provided funding for the
Feasibility Study and the preliminary geotechnical
testing for this project ($92,244).
E. Invest in infrastructure that provides multiple
benefits.
See responses above.
F. Prioritize Nature-Based Solutions. The project will include the installation of permeable walkways throughout the park, in addition to installing a dry well, native vegetation, and a community garden.
G. Provide a spectrum of project sizes from
neighborhood to regional scales.
The project will be neighborhood scale.
H. Encourage innovation and adoption of new
technologies and practices.
The project proposes to implement diversion, pretreatment, and infiltration.
I. Invest in independent scientific research. Not applicable.
J. Provide DAC Benefits, including Regional
Program infrastructure investments, that are
not less than one hundred and ten percent
(110%) of the ratio of the DAC population to
the total population in each Watershed Area.
Not applicable, the project site is not located within a DAC.
City of Signal Hill Reservoir Park Stormwater Capture Project SCWP Scope of Work SCWP Regional Program Agreement No. xxxxxxxxxxxxxx 3
K. Provide Regional Program infrastructure funds
benefitting each Municipality in proportion to
the funds generated within their jurisdiction,
after accounting for allocation of the one
hundred and ten percent (110%) return to
DACs, to the extent feasible.
This is achieved through Regional Program funding.
L. Implement an iterative planning and
evaluation process to ensure adaptive
management.
Upon completion of construction, the project will be
monitored on a regular basis to evaluate its pollutant
reduction benefits. Modifications will be made
iteratively as appropriate.
M. Promote green jobs and career pathways. The project requires a skilled workforce to ensure proper design of all project components.
N. Ensure ongoing operations and maintenance
for projects
Upon completion of construction, the project will
require ongoing operations and maintenance. Refer to
Section A-5.
Quantitative targets and corresponding metrics1 will be provided upon request during subsequent reporting; however, achievement of these metrics may not be fully realized until the project has been constructed. 1 The metric may include annual volume of stormwater captured and 1) infiltrated, 2) reused, or 3) treated and released; Creation, enhancement, or restoration of Community Investment Benefits; Acreage increases in NatureBased Solutions and claimed level of NBS (with matrix demonstrating determination of good, better, best).
City of Signal Hill Reservoir Park Stormwater Capture Project SCWP Scope of Work SCWP Regional Program Agreement No. xxxxxxxxxxxxxx 4
A-3 Estimated Reasonable Total Activity Cost
See the table below for the estimated total activity cost for all phases and tasks included in the work schedule for the Funded Activity.
Table 3: Estimated Activity Cost
Phase Activity Cost
Design Task 1: Final Design (30/60/90/100) $768,823
Design Task 2: Public Outreach During Design $50,000
Design Task 3: Environmental Planning (CEQA) and Permitting $76,882 Design Task 4: Agency Management (Design) $56,137
Construction Task 5: Construction Capital Costs $5,125,487 Construction Task 6: Construction Administration and Design Support $512,549 Construction Task 7: Construction Survey $15,000
Construction Task 8: Agency Management (Construction) $72,000 Total $6,676,878
A-4 Funded Activity Description and Scope of Work
The scope of work will primarily entail the following activities:
TASK 1: DESIGN
Project Management
• Technical and administrative services as needed for project completion, including review of all work performed, coordination with budgeting and scheduling, and completion of reporting requirements
Design and Engineering
• Development of 30%/60%/90%/100% Plans
• Design of the diversion, pre-treatment, and infiltration gallery and dry well system.
Environmental Planning and Permitting
• Preparation and processing of applicable environmental documentation and permits (see Table 4 below for the permits expected for this project)
Stakeholder and Community Outreach/Engagement
• Conduct at least one Outreach Activity and one Engagement Activity per the requirements of the Safe Clean Water Program (see Section A-8 for additional details) Development of the O&M Plan
• An O&M Plan will be developed as part of the 100% final design and will detail the maintenance requirements for project components (see Section A-5 for additional information) Development of the Post-Construction Monitoring Plan
City of Signal Hill Reservoir Park Stormwater Capture Project SCWP Scope of Work SCWP Regional Program Agreement No. xxxxxxxxxxxxxx 5
• A Post-Construction Monitoring Plan will be developed as part of the 100% final design and will identify monitoring procedures to evaluate the effectiveness of the project in treating stormwater (see Section A-6 for additional information)
Development of the Vector Minimization Plan
• A Vector Minimization Plan will be developed as part of the 100% final design and will ensure that the system meets all requirements and minimizes the potential for vector increases TASK 2: CONSTRUCTION
Project Management
• Technical and administrative services as needed for project completion, including review of all work performed, coordination with budgeting and scheduling, and completion of reporting requirements
Construction Activities
• Construction of the Reservoir Park Stormwater Capture Project Park Improvements
• Park improvements at Reservoir Park, including pervious walkways, a community garden, native vegetation, educational signage, etc.
TASK 3: O&M
Operation and Maintenance
• O&M activities, including monitoring at the diversion point and inflows and outflows of the storage unit.
Table 4: Anticipated Permitting
Agency Permit
City of Signal Hill Department of Public
Works Encroachment Permit
City of Long Beach Department of Public
Works Encroachment Permit
LA County Flood Control District Major Modification Permits LA County Flood Control District Discharge Permit for Non-Stormwater (treated) Overflow Discharged Back into the Storm Drain (BI 0633 – Line B) State Water Resources Control Board Construction General Permit South Coast Air Quality Management
District Rule 403
CA Natural Resources Agency CEQA
City of Signal Hill Reservoir Park Stormwater Capture Project SCWP Scope of Work SCWP Regional Program Agreement No. xxxxxxxxxxxxxx 6
A-5 Operations and Maintenance (O&M) Plan
A final Operations and Maintenance (O&M) Plan has been prepared as part of the 100% design. At this time, the expected O&M elements are shown below in Table 5. The final O&M Plan will be completed at the end of construction when actual brands and part information is made available. The responsible party for the O&M of the completed project will be the City of Signal Hill.
Table 5: Anticipated O&M
Description O&M Description Frequency No. of Times per Year Permeable Pavement Vacuum As Needed As Needed
Diversion Structure Inspection and
Cleaning Quarterly 4
Pretreatment Device Vacuum Every 6
months 2
Wet Well
Dry Season
Inspection and
Cleaning
Twice in 6-
month
period
2 Wet Well
Wet Season
Inspection and
Cleaning
Thrice in 6-
month
period
3 Dry Well Inspection and
Cleaning Quarterly 4
Valve Maintenance Inspection and
Maintenance Annually 1
Control Panel Maintenance Inspection and
Maintenance Annually 1
Storage
Dry Season
Inspection and
Cleaning
Every 6
months 1
Storage
Wet Season
Inspection and
Cleaning
Every 6
months 1
A-6 Post-Construction Monitoring
It is understood that stormwater quality monitoring data shall be collected and reported in a manner consistent with the SWRCB database (CEDEN) for a period of three years. The Post-Construction Monitoring Plan evaluates the effectiveness of stormwater treatment facilities; quality objectives; sampling design; sampling procedures; quality control; data management verification, and reporting; data quality assessment; and data analysis procedures.
A-7 Sustainability Rating
Not applicable. This project has not applied for Institute for Sustainable Infrastructure (ISI) verification.
City of Signal Hill Reservoir Park Stormwater Capture Project SCWP Scope of Work SCWP Regional Program Agreement No. xxxxxxxxxxxxxx 7
A-8 Stakeholder and Community Outreach/Engagement Plan
Since the funding requested is under $10 million, the project is required to conduct one Outreach Activity and one Engagement Activity. See Table 6 below for the Stakeholder and Community Outreach Plan. Additionally, the project is proposed at an existing parking facility; therefore, no displacement or gentrification is anticipated as a result. The City acknowledges that the project will be fully subject to and comply with any County-wide displacement policies and anti-displacement requirements.
Table 6: Stakeholder and Community Outreach Plan
Required Activity Required Frequency Plan
Outreach 1
The City will implement at least one Outreach Activity, and will utilize existing public meetings such as city
council meetings and/or other Online Media Outreach
(email blasts, social media, publication on a website), Local Media Outreach (newsletters), and Grassroots
Outreach (distribution of flyers or other printed
materials) to provide information to residents and
information about upcoming construction activities.
As required, the District will be included in all social media outreach and notified of all meetings and other
engagement events. Additionally, outreach efforts
through web-based platforms will first be requested to
the District at least four weeks before the requested
publish date.
Engagement ≥1
The City will conduct at least one engagement
activities to solicit, address, and seek input from
community members. This may be in the form of a
workshop or coordinated with council, commission, or
committee meetings where public input is invited.
Meetings and workshops may be held virtually if
necessary.
City of Signal Hill Reservoir Park Stormwater Capture Project SCWP Scope of Work SCWP Regional Program Agreement No. xxxxxxxxxxxxxx 8
A-9 Tracking Infrastructure Program Project Benefits
Upon Activity Completion, the expected benefits include:
• Construction of the Reservoir Park Stormwater Capture Project (Funded Activity) • Implementation of the O&M Plan
• Implementation of the Post-Construction Monitoring Plan • Implementation of the Vector Minimization Plan
Aside from the Funded Activity, the future implementation of the project will include O&M, Post-Construction Monitoring, and Vector Minimization. Anticipated benefits of the fully implemented project also include improved park facilities, improved water quality, heat island effect reduction, additional shading, improved open space, and enhanced experience to visitors of Reservoir Park. The park will provide improved park facilities through the implementation of permeable walkways, a community garden, educational signage, and native vegetation. Diversion systems, pre-treatment facilities, and a subsurface infiltration gallery and dry well installed at the park will provide increased water supply and improved water quality. The City will submit an overview of the benefits achieved upon the Activity Completion. Quantitative targets and corresponding metrics will be provided upon request during subsequent reporting; however, achievement of these metrics may not be fully realized until the project has been constructed (i.e., Funded Activity).
A-10 Work Schedule and Completion Date
The table below lists the expected schedule for the Funded Activity. The expected completion date of the Funded Activity is June 30, 2028.
Table 7: Anticipated Work Schedule
Fiscal Year Phase Activity Start Date Completion Date
2024-25 Design
Professional Design Services (30/60/90/100);
Environmental Planning (CEQA) and
Permitting; Community Outreach; Agency
Project Management
July 2024 June 2025
2025-26 Construction
Construction; Agency Project Management;
Construction Administration; Survey and
Staking; Completion of any remaining items
from above.
July 2025 June 2026
2026-27 Construction
Construction; Agency Project Management;
Construction Administration; Completion of
any remaining items from above.
July 2026 June 2027
2027-28 Construction
Construction; Agency Project Management;
Construction Administration; Completion of
any remaining items from above.
July 2027 June 2028