Seal Beach City Council
September 28, 2026

Table of Contents
I. INTRODUCTION .................................................................................................. 3 II. QUALIFICATIONS ................................................................................................ 3 III. SCOPE OF SERVICES ........................................................................................ 4 IV. DELIVERABLES ................................................................................................... 6 V. PRE-PROPOSAL QUESTIONS ........................................................................... 6 VI. SCHEDULE .......................................................................................................... 6 VII. SUBMITTAL REQUIREMENTS ............................................................................ 7 VIII. FEE PROPOSAL ................................................................................................ 11 IX. INTERVIEW........................................................................................................ 11 X. SELECTION PROCESS ..................................................................................... 11 XI. GENERAL CONDITIONS ................................................................................... 12 EXHIBIT A ..................................................................................................................... 15 SAMPLE PROFESSIONAL SERVICES AGREEMENT ........................................... 15 EXHIBIT B ..................................................................................................................... 16 CITY OF SEAL BEACH – 2025 ECP TIER 1 - PROJECT X .................................... 16 AWARDED APPLICATION DATED MAY 8, 2025 ................................................... 16

REQUEST FOR PROPOSALS FOR
Design Professional Services for the 5th Street at Electric Avenue Stormwater Treatment Project
I. INTRODUCTION
On May 2010, the Orange County Transportation Authority (OCTA) Board of Directors (Board) approved a two-tiered approach to fund the Measure M2 Project X Environmental Cleanup Program (ECP). The Tier 1 Grant Program is designed to mitigate the more visible forms of pollutants, such as litter and debris, which collect on roadways and in catch basins (i.e., storm drains) prior to being deposited in waterways and the ocean. The Tier 2 Grant program provides funding for larger projects, potentially multi-jurisdictional, capital-intensive structural treatment best management practice (BMP) types of projects.

On March 31, 2026, the City of Seal Beach was granted funds via the 2025 ECP Tier 1 Project X call for projects to construct the 5th Street at Electric Avenue Stormwater Treatment Project (Project) which is an effort aimed at enhancing local stormwater quality and mitigating downstream impacts by intercepting pollutants before they reach the West End Pump Station (WEPS) and the San Gabriel River.

The City is seeking proposals from qualified professional engineering firms (Consultant) for the preparation of a bid package to be advertised for a public bid to construct the Project. Consultant shall take into consideration OCTA grant performance timelines and incorporate this information in their proposed schedule.

II. QUALIFICATIONS
Minimum Qualifications
• Valid California Professional Civil Engineering license for the discipline of Work. • Valid City of Seal Beach business license for the term of the Agreement, if selected. • Prior experience in preparing bid documents for similar type of installation. • Proficiency with applicable regulatory agencies’ rules and regulations, or ability to subcontract a firm to provide such services.

Desirable Qualifications
• Knowledge and experience with the City of Seal Beach’s standards and practices. • Knowledge and experience with OCTA’s 2025 ECP Tier 1 – Project X grant program and timelines.

III. SCOPE OF SERVICES
Task 1: Project Management
This task includes general project management and administrative functions such as regular communications with City staff, coordination with project stakeholders, record keeping and progress meetings and minutes with City staff. Consultant will be responsible for tracking the OCTA ECP grant, required timelines, requesting for time extensions and progress reporting, as needed. Consultant shall provide a tentative schedule taking into account typical design, as well as OCTA grant milestones.

Task 2: Survey and Mapping
The consultant will review available survey control and mapping records from City and County sources and perform field surveys to establish control and collect topographic data within the project limits. Survey activities will include all surveying and mapping work necessary to complete the design in place, including, but not limited to locating visible site features, obtaining invert elevations of existing storm drain system, and identifying rightof-way boundaries based on recorded documents. The collected data will be compiled into a topographic map at a scale of 1" = 20' with 1-foot contour intervals or at an interval recommended by the Consultant and approved by the City. A final field review will be conducted to verify mapping accuracy and document any additional site features as needed.

Task 3: Utility Search and Coordination
Public and private utilities within the project limits will be identified, and utility maps and verification requests will be obtained. A utility base map will be prepared using the collected information, and identified utilities will be incorporated into the project plans. The Consultant will be responsible for coordinating with utility providers to identify potential utility conflicts and coordinate any required utility relocations necessary for the installation of the proposed stormwater treatment improvements.

Task 4: Potholing
Where utility locations cannot be confirmed from available records and may affect the proposed infiltration facility design, utility potholing will be performed to verify their locations. This scope assumes up to seven (7) potholes. Excavations will be backfilled with compacted native material and restored with concrete asphalt as appropriate upon completion.

Task 5: Prepare 60% Plans, Specifications and Estimates Prepare 60% design plans, specifications and estimate (PS&E) for the proposed improvements using the City's standard title block and special provisions template. The plans will include plan and profile views, major project components, points of connection, and affected existing features. The specifications will incorporate applicable Greenbook references and technical specifications, as needed. Estimates shall reflect bid items outlined in the City’s grant application. The 60% submittal will be provided electronically

in PDF format (hard copies upon request) for City review, and comments received will be incorporated into the 90% design plans and specifications.

Task 6: Geotechnical Investigations and Reporting
Perform a geotechnical investigation including review of available information, site reconnaissance, subsurface exploration, and geotechnical analysis. Geotechnical Engineer shall provide recommendations for site suitability, soil conditions, excavation and compaction, seismic design parameters, trenching, liquefaction potential, and soil corrosion. A stamped geotechnical report will be prepared documenting findings, boring logs, exploration locations, and laboratory results and included in the contract/design documents.

Task 7: Prepare 90% Plans, Specifications and Estimates Prepare 90% PS&E for the proposed treatment improvements using the City's standard title block and special provisions template. The plans will include plan and profile views, major project components, points of connection, affected existing features and SWPP/BMP considerations, as appropriate. The specifications will incorporate applicable Greenbook references and technical specifications, as needed. Estimates shall reflect bid items outlined in the City’s grant application. 90% plans shall include a title sheet, general notes, storm drain plan, profile and details and hydrodynamic separator device details.

The 90% submittal will be provided electronically in PDF format (hard copies upon request) for City review, and comments received will be incorporated into the final design plans and specifications.

Task 8: Final Plans, Specifications and Estimates
90% PS&E comments shall be incorporated into the final PS&E package. Final PS&E shall be submitted to the City, with all documents signed and stamped by a Californiaregistered engineer. The final package will be prepared for advertisement and public bidding.

Task 9: Meetings and Coordination
Meetings will be conducted throughout the project to coordinate information exchange and provide status updates to the City. Anticipated virtual meetings include design kickoff, 60% review, 90% review, and final plan submittal review meetings.

Consultant shall attend Owner/Engineer/Contractor weekly meetings to resolve submittals, RFIs and unforeseen field conditions. Weekly meetings may be virtual or inperson depending on the topic to be discussed.

Task 10: Bid and Construction Support Services
Provide bid-phase and construction support services as requested by the City. Services may include attending the pre-bid conference and job walk, responding to bidder inquiries,

preparing addenda, reviewing bids, and providing recommendations. A conformed PS&E package will be prepared to reflect approved bid-phase changes and issued for construction.

Construction support may include review of shop drawings, material submittals, contractor RFIs and attending construction meetings, as needed. Record drawings will also be prepared based on approved construction changes and contractor-provided field markups.

IV. DELIVERABLES
The Consultant shall:

1. Prepare the PS&E per Section III (Scope of Services) above, including:
a. Design Schedule outlining general design and OCTA grant milestones b. 60% PS&E
c. 90% PS&E
d. Final PS&E for public bid
e. Addenda, as needed
f. Conformed PS&E that reflects all addenda issued during bidding phase The final bid documents shall be signed and stamped by a current California-registered Civil Engineer in the State of California and include supporting documentation.

V. PRE-PROPOSAL QUESTIONS
For answers to questions or particulars regarding this Request for Proposal, all interested parties are to submit via PlanetBids:

The City will respond in writing to all questions and requests for clarification received by 5:00 pm on August 12, 2026. All questions and requests for clarification must be in writing.

VI.SCHEDULE
The following dates reflect the anticipated schedule:
 Request for Proposal Solicitation 08/05/2026
 Pre-Proposal Question Deadline 08/12/2026, 5:00 p.m.
 Proposal Submittal Deadline 08/26/2026, 10:00 a.m.
 Consultant Interview (if conducted) September 2026
 Contract Award by City Council October 2026
 Notice to Proceed October/November 2026

VII. SUBMITTAL REQUIREMENTS
Acceptance of Submittals
Proposals are due by 10:00 AM on August 26, 2026, to the following. Postmarks will not be accepted.

Kathryne Cho
Deputy Public Works Director/City Engineer
Department of Public Works
211 Eighth Street
Seal Beach, CA 90740
[email protected]
(562) 431-2527 ext. 1321
Please submit one (1) original, two (2) hard copies, and one (1) electronic copy of the Consultant’s Proposal. Proposals received after the date and time listed above may not be accepted or considered for this Project.

The City is not responsible for any costs or expenses incurred by a firm responding to this RFP and will not reimburse firms for any costs or expenses incurred in preparing proposals in response to this RFP.

The City reserves the right to retain all proposals submitted, and to use any idea in a proposal regardless of whether the proposal was selected. Submission of a proposal indicates acceptance by the firm of the conditions contained in the RFP, unless clearly and specifically noted in the proposal submitted and confirmed in the contract between the City and the selected consultant.

All information/documentation submitted as part of this RFP will become property of the City and shall not be returned and will become a public record and are subject to public inspection under the California Public Records Act (Government Code Sec. 6250 et seq.).

Any language purporting to render the entire proposal confidential or propriety will be ineffective and will be disregarded. Provided, however, that proposals will not be subject to disclosure until a decision, if any, has been made to recommend a consultant to the City Council, to terminate this process, or to reject all proposals. Once that decision is made, all proposals are subject to public disclosure. Additionally, all property rights, including publication rights of all reports produced by the selected consultant in connection with services performed under this Agreement shall be vested in the City. The City reserves the right to make use of any information or ideas in the proposal submitted.

The City shall not in any way be liable or responsible for the disclosure of any such information.

Reservation of Rights
The issuance of this RFP does not constitute an agreement by the City that any contract will actually be entered into by the City. Receipt of a proposal does not obligate the City to enter into a contract. The City expressly reserves the right at any time to:

• Waive or correct any defect or informality in any response, Proposal, or Proposal procedure.
• Reject any or all Proposals.
• Reissue a Request for Proposals.
• Prior to submission deadline for Proposals, modify all or any portion of the selection procedures, including deadlines for accepting responses, the specifications or requirements for any materials, equipment or services to be provided under this RFP, or the requirements for contents or format of the Proposals. • The City recognizes that price is only one of several many criteria to be used in judging a product or service, and the City is not legally bound to accept the lowest priced RFP response.
• The City reserves the right to conduct pre-award discussions and/or pre-Contract negotiations with any or all responsive and responsible Consultants who submit RFP responses.
• Procure any materials, equipment or services specified in this RFP by any other means.
• Terminate this process at any time.
• The City reserves the right to inspect the Consultant’s place of business prior to award or at any time during the term of the Agreement or any extension thereof, to determine the Contractor’s capabilities and qualifications.
• Verify the Consultant’s submitted information by contacting any of Consultant’s references.
• The City reserves the right to determine whether a proposal meets the specifications and requirements of this RFP and reject any proposal that, in the City’s sole opinion, fails to meet the detail or intent of the requirements. The City reserves the right to reject any and all proposals.

The City reserves the right to change the terms and conditions of this RFP and is not bound by any verbal representations concerning it. Any questions must be submitted prior to 5:00 pm on August 12, 2026. If any changes to this RFP are made, the City will provide notice to any firms that have made a submittal. This information will be provided via addendum in accordance with Section VII.

Where only one responsive proposal is received, the City may negotiate price with the sole responsive consultant, or it may reject the proposal, conduct a new RFP process, or cancel the RFP.

The City may select the top one or more scoring proposers with which to negotiate, as deemed necessary by the City.

Information to be Submitted
The following information shall be provided, at a minimum:

Cover Letter
Table of Contents
References
Exceptions

Local Staffing List
Company Qualifications
Schedule/Hours
Contract Signatories
Fee Proposal
DIR Registration Number/Contractor’s License
Project Understanding/Approach/Scope of
Services
Business Entity
Proposal shall be a maximum of 25 pages, excluding cover page, cover letter, table of contents, resumes and report dividers.

Cover Letter: It shall provide an executive summary of the proposal and designate the firm’s authorized representative regarding this RFP and include a statement that this RFP shall be incorporated in its entirety as a part of the Consultant’s quote. Cover letter shall not exceed two pages.

Table of Contents: The table of contents shall list the following sections with page numbers and information in each section shall be provided.

Local Staffing List: Provide an organizational chart showing the names, positions, responsibilities, and availability of the individual(s) that would be assigned to this Agreement, including subconsultants. Identify the individual(s) authorized to negotiate the contract on behalf of the consulting firm and the Consultant’s project manager.

The Proposer may utilize the services of specialty Subconsultants on those parts of the Work that, under normal contracting practices, are performed by specialty Subconsultants. Unless a specific Subconsultant is listed by the Proposer, the Proposer is representing to City that Proposer has all appropriate licenses, certifications, and registrations to perform the work hereunder. Subconsultants are subject to the same state and federal requirements applicable to the Consultant.

After submission of his/her/its proposal, the Proposer shall not award Work to any unlisted Subconsultant(s) without prior written approval of the City. The Proposer shall be fully responsible to the City for the performance of his/her Subconsultants, and of persons either directly or indirectly employed by them.

Nothing contained herein shall create any contractual relation between any Subconsultant and the City.

Resumes of proposed staff shall be provided.

Company Qualifications: Provide a summary of the firm’s qualifications, including background and experience.

Schedule/Hours: Provide an anticipated schedule and number of hours necessary to complete each of the anticipated task/phase, and the overall project.

Project Understanding/Approach/Scope of Services: Describe the firm’s understanding of the project identifying, any key issues that may need special attention.

Describe how the firm will approach the scope of services and each task needed to complete the project.

Any task assumptions and/or exclusions shall be clearly identified.

References: The Consultant shall provide a minimum of five (5) references from public agencies for whom the Consultant has designed and prepared a bid package installing a Hydrodynamic Trash Separator within the public right-of-way or similar scope within the last five (5) years. Information shall include, at a minimum:
• Agency name
• Scope of work and/or services provided, Consultant/Subconsultant. • Project outcome
• Design services, construction value, addenda/change orders • Funding source
• Dates
• Staff assigned to referenced engagement that will be designated for work per this RFP • Client project manager name, valid telephone number, and email Exceptions: The Consultant shall review this RFP and attached standard professional services agreement. Exceptions to any portion of the RFP and/or the City’s standard professional services agreement will need to be clearly identified. Identification of exceptions does not constitute City concurrence and acceptance. Exceptions may be negotiated with the top-ranked firm.

Fee Proposal: In order to assure that the City of Seal Beach is able to acquire professional services based on the criteria set forth in Government Code Section 4526, the proposal shall include a Cost-Plus Fixed Fee proposal for all tasks associated with the bid document development. Proposing Consultants will be required to submit certified payroll records, as required. The fee schedule shall be submitted in a separate sealed envelope from the proposal marked as “5th Street at Electric Avenue Stormwater Treatment Project - Fee Proposal”. The Fee proposal is confidential and will not be unsealed until after all proposals have been reviewed, and the ranking has been completed. Upon selection of the most qualified firm, the associated Fee Schedule/Cost Proposal will be used as a basis for contract negotiations. A contract will be negotiated on the basis of the submitted Fee Schedule/Cost Proposal, and in consideration of reasonable and mutually agreed project costs and time requirements. Should successful negotiations not occur with the highest ranked firm, the City may, at its sole discretion, choose to enter negotiations with the second highest ranked firm, and so on.

Contract Signatories: Provide the two binding signatories for the firm, pursuant to California Corporation Code Section 313.

DIR Registration/Contractor’s License (if applicable): Clearly indicate the Consultant’s Department of Industrial Relations registration number for the Consultant and any Subconsultant and provide the Consultant and Subconsultant’s license information.

Business Entity: Clearly indicate the firm’s business entity type (i.e., a California corporation).

VIII. FEE PROPOSAL
The Consultant shall provide a fee schedule outlining all applicable employee classifications and hourly rates for each task and subtask as well as any other direct costs. The proposal shall provide a breakdown of fees associated with each project task and associated review and approval stage. The Fee Schedule for the project that is submitted in a separate sealed envelope (as outlined above), shall include all work necessary to complete the project.

The Consultant shall also take into consideration the following:

1. Compensation for services, and any optional tasks, provided will be on a time-andmaterials, not-to-exceed amount.

2. Fee proposal and billing rates shall remain effective for the term of the Agreement.

Any anticipated billing/rate adjustments shall be clearly identified in the Proposal.

3. The Consultant’s standard billing rates for all classifications of staff likely to be involved in the project shall be included with the fee proposal along with the markup rate for any non-labor expenses and sub-consultants, if allowable. Any anticipated fee adjustments shall be clearly noted.

4. The City will negotiate the final fee with the top-ranked consultant, if necessary.

IX. INTERVIEW
Top ranked consultant team(s) may be interviewed by the selection committee. Proposed key personnel from the Project Team may be requested to present the teams’ and their qualifications at an interview.

X. SELECTION PROCESS
Proposals will be evaluated on the basis of the response to all provisions of this RFP.

The City may use some or all of the following criterion in its evaluation and comparison of proposals submitted. The criteria listed are not necessarily an all-inclusive list. The order in which they appear is not intended to indicate their relative importance. The City reserves the right to modify the evaluation criterion and percentage of score as deemed appropriate prior to the commencement of evaluation.

POTENTIAL EVALUATION CRITERIA
Completeness of Response (Pass/Fail)
Responses to this RFP must be complete. Responses that do not include the proposal content requirements identified within this RFP and subsequent addenda and do not address each of the items listed below will be considered incomplete, may be rated a Fail in the Evaluation Criteria and may receive no further consideration.

Qualifications & Experience (40%)
Experience and technical competence of the firm and key personnel on similar projects of equal complexity.

Organization & Approach (35%)
Understanding and approach to the Work including, but not limited to, task breakdown, scheduling, and staffing. Comprehensive project work plan, including considerations that may have been overlooked, along with opportunities and constraints to help ensure successful execution.

References & Familiarity (20%)
References and familiarity with ECP Tier 1 Project X Grant timelines.

Conformity (5%)
Willingness to agree to all terms of the professional services agreement.

All proposals received as specified will be evaluated by City staff in accordance with the abovementioned. During the evaluation period, the City may do any or all of the following:
generate a “short list” and conduct interviews with the top candidates; conduct on-site visits and/or tours of the candidates’ places of business. Consultants should be aware that award may be made without consultant visits, interviews, or further discussion or negotiations.

XI.GENERAL CONDITIONS
A. Signature
The Proposal shall be signed by an individual authorized to bind the Consultant.

B. Other Considerations:

The City shall not be liable for any pre-contractual expenses incurred by any firm considering submitting a proposal in response to this RFP.

The City reserves the right to accept or reject any and all proposals, or any part of, or waive any informalities or irregularities. The City reserves the right to withdraw, to cancel this RFP at any time without prior notice and the City makes no representations that any contract will be awarded to any firm responding this RFP.

C. Business License Required
The Seal Beach Municipal Code requires all businesses operating in the City to pay a business license tax. For more information, go to www.sealbeachca.gov .

D. Prevailing Wage
All work performed in connection with execution of this contract work shall be performed in compliance with all applicable laws, Seal Beach City Charter, ordinances, rules and regulations of federal, state, county or municipal governments or agencies (including, without limitation, all applicable federal and state labor standards, including the prevailing wage provisions of sections 1770 et seq. of the California Labor Code), and (b) all directions, rules and regulations of any fire marshal, health officer, building inspector, or other officer of every governmental agency now having or hereafter acquiring jurisdiction. The Consultant shall indemnify, defend and hold the City harmless from any and all claims, causes of action and liabilities based upon or arising from the failure of any work related to the Project to comply with all such applicable legal requirements, including, without limitation, any such claims, causes of action or liabilities that may be asserted against or incurred by the City with respect to or in any way arising from the Project’s compliance with or failure to comply with applicable laws, including all applicable federal and state labor requirements including, without limitation, the requirements of California Labor Code section 1770 et seq.

The Consultant agrees that all public work (as defined in California Labor Code section (1720) performed pursuant to this Agreement (the “Public Work”), if any, shall comply with the requirements of California Labor Code sections 1770 et seq. The City makes no representation or statement that the project or any portion thereof, is or is not a “public work” as defined in California Labor Code section 1720.

In all bid specifications, contracts and subcontracts for any such Public Work, the Consultant shall obtain the general prevailing rate of per diem wages and the general prevailing rate for holiday and overtime work in this locality for each craft, classification or type of worker needed to perform the Public Work, and shall include such rates in the bid specifications, contract or subcontract. Such bid specifications, contract or subcontract must contain the following provision: “It shall be mandatory for the consultant to pay not less than the said prevailing rate of wages to all workers employed by the contractor in the execution of this contract. The Consultant expressly agrees to comply with the penalty provisions of California Labor Code section 1775 and the payroll record keeping requirements of California Labor Code section 1771.” E. Registration with the Department of Industrial Relations In accordance with Labor Code Sections 1725.5 and 1771.1, no contractor or subcontractor shall be qualified to bid on, be listed in a bid proposal, subject to the requirements of Section 4104 of the Public Contract Code, or engage in the

performance of any contract for public work, unless currently registered and qualified to perform public work pursuant to Section 1725.5 [with limited exceptions for bid purposes only under Labor Code Section 1771.1(a)].

The Department of Industrial Relations Registration Number shall be listed for the Consultant and each Subconsultant or other Subcontractor, if any, in the Proposal.

EXHIBIT A

SAMPLE PROFESSIONAL SERVICES AGREEMENT
RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26

DESIGN PROFESSIONAL SERVICES AGREEMENT
for
5th Street at Electric Avenue Stormwater Treatment Project between
City of Seal Beach
211 - 8th Street
Seal Beach, CA 90740
&
<Consultant Name>
<Address>
<City, State, Zip Code>
<Phone Number>
This Professional Service Agreement (“the Agreement”) is made as of <INSERT DATE> (the “Effective Date”), by and between <CONSULTANT’S COMPLETE LEGAL NAME> (“Consultant”), <TYPE OF LEGAL ENTITY AND STATE OF FORMATION (e.g., a California corporation, partnership, limited liability company, sole proprietorship, etc.)> and the City of Seal Beach (“City”), a California charter city, (collectively, “the Parties”).
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RECITALS
A. City desires certain engineering design professional services.

B. Pursuant to the authority provided by its City Charter and Seal Beach Municipal Code § 3.20.025(C), City issued a Request for Proposals (“RFP”) on <DATE>, for Engineering Design Professional Services for the 5th Street at Electric Avenue Stormwater Treatment Project and as further defined and described with specificity in Section 1.0 of this Agreement. Consultant submitted a proposal dated <DATE> to perform the design professional services defined and described in Section 1.0 of this Agreement.

C. Consultant represents that the principal members of its firm are licensed and registered professional engineers and are fully qualified to perform the design professional services contemplated by this Agreement by virtue of its experience, and the training, education and expertise of its principals and employees.

D. City desires to retain Consultant as an independent contractor and Consultant desires to serve City to perform those design professional services in accordance with the terms and conditions of this Agreement.

NOW THEREFORE, in consideration of the Parties' performance of the promises, covenants, and conditions stated herein, the Parties hereto agree as follows.

AGREEMENT

1.0 Consultant’s Services

1.1. Scope of Services. In compliance with all terms, conditions and provisions of this Agreement, Consultant shall provide those design professional services (collectively “Services”) set forth in the Request for Proposals or other solicitation (“RFP”), attached hereto as Exhibit A and incorporated herein by this reference, and Consultant’s accepted Proposal (“Proposal”), dated <DATE>, attached hereto as Exhibit B and incorporated herein by this reference, all to City’s reasonable satisfaction. The Services relate to the following City project:
5th Street at Electric Avenue Stormwater Treatment Project.

1.2. Agreement Documents; Order of Precedence.

1.2.1. The Agreement Documents include this Agreement, and all of the following: (i) Exhibit A (the RFP, including all standards, appendices and exhibits attached thereto or referenced therein); and (ii) Exhibit B (the Proposal (Consultant’s accepted proposal, “Proposal”); and (iii) Exhibit C (Terms for Compliance with California Labor Law Requirements). Exhibits A, B and C are incorporated herein by this reference as though set forth in full. 3 of 25
RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26

1.2.2. In the event of any inconsistency or conflict between this Agreement and any Exhibit or incorporated documents, the order of precedence shall be as follows: (i) this Agreement; and then (ii) Exhibit A (the RFP); and then (iii) Exhibit C (Terms for Compliance with California Labor Law Requirements); and then (iv) Exhibit B (the Proposal), shall control. In the event there is any conflict between the Agreement, on the one hand, and Exhibits A, B, and/or C on the other hand, the Agreement shall control. Nothing in the Proposal (Exhibit B) shall vary or waive any terms, provisions or conditions of this Agreement.

1.3. Standard of Care. As a material inducement to City to enter into this Agreement, Consultant hereby represents that it has the experience necessary to undertake the Services to be provided. In light of such status and experience, Consultant hereby covenants that it shall follow the customary professional standards in performing all Services. City relies upon the skill of Consultant, and Consultant’s staff, if any, to do and perform the Services in a skillful, competent, and professional manner, and Consultant and Consultant’s staff, shall perform the Services in such manner. Consultant shall, at all times, meet or exceed any and all applicable professional standards of care generally exercised by like professionals under similar circumstances and in a manner reasonably satisfactory to City. The acceptance of Consultant’s work by City shall not operate as a release of Consultant from such standard of care and workmanship.

1.4. Familiarity with Services. By executing this Agreement, Consultant represents that, to the extent required by the standard of practice, Consultant (i) has investigated and considered the scope and level of services to be performed, (ii) has carefully considered how the Services should be performed, and (iii) understands the facilities, difficulties and restrictions attending performance of the Services under this Agreement. Consultant represents that Consultant, to the extent required by the standard of practice, has investigated any areas of work, as applicable, and is reasonably acquainted with the conditions therein. Should Consultant discover any latent or unknown conditions, which will materially affect the performance of services, Consultant shall immediately inform City of such fact and shall not proceed except at Consultant’s risk until written instructions are received from City’s Representative.

1.5. Compliance with Laws. In performing this Agreement, Consultant shall comply with all applicable provisions of federal, state, and local law.

1.6. Additional Services. Consultant will not be compensated for any work performed not specified in the Scope of Services unless City authorizes such work in advance and in writing. The City Manager may authorize extra work to fund unforeseen conditions up to the amount approved at the time of award by the City Council. Payment for additional work in excess of this amount requires prior City Council authorization.
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RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26

2.0 Term

2.1. Original Term. The term of this Agreement shall commence on <DATE>, and shall remain in full force and effect until <DATE>, unless sooner terminated as provided in Section 5.0 of this Agreement. The term of this Agreement shall commence as of the Effective Date and shall continue for a term of three (3) years (“Original Term”) and shall expire at midnight on <DATE>, unless sooner terminated or extended as provided by this Agreement.

2.2. Extensions. City, at its sole option, may elect to extend the Original Term of this Agreement, upon the same terms and conditions, for up to two (2) additional terms of one year each (“extension”), by providing written notice to Consultant at least one month prior to the expiration of an existing term. If timely elected by City, the first extension shall have a term extending from <DATE> through and including <DATE>, unless sooner terminated or extended pursuant to this Agreement. If timely elected by City, the second extension shall be from <DATE> through and including <DATE>, unless sooner terminated pursuant to this Agreement. Any extension shall not be effective except upon execution of a written amendment to this Agreement signed by the City Manager and Consultant’s authorized representatives.

3.0 Consultant’s Compensation

3.1. Original Term. In consideration of Consultant’s performance of the Services described in Section 1.0, City will pay Consultant in accordance with the hourly rates shown on the fee schedule set forth in Exhibit B for the Services but in no event will City pay more than the total not-to-exceed amount of $_____ (____ dollars) <TOTAL CONTRACT AMOUNT> for the Original Term. Payment for any additional work authorized by City pursuant to Subsection 1.6 will be compensated in accordance with the fee schedule set forth in Exhibit B, and shall not exceed the cumulative amount established by the City Council at the time of award for the Original Term.

3.2. Extensions. In the event that City elects to extend the Original Term in accordance with Subsection 2.2 of this Agreement, and in consideration of Consultant’s performance of the Services described in Section

1.0, City will pay Consultant in accordance with the hourly rates shown on the fee schedule set forth in Exhibit B for Services but in no event will City pay more than the total not-to-exceed amount of $____________ (_______ dollars) <INSERT MAXIMUM DOLLAR AMOUNT PAYABLE FOR EACH EXTENDED TERM> for each extension. Payment for any additional work authorized by City for each extension pursuant to Subsection 1.6 will be compensated in accordance with the fee schedule set forth in Exhibit B, and shall not exceed the cumulative amount established by the City Council at the time of award for each extension.

4.0 Method of Payment
5 of 25
RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26 Consultant shall submit to City monthly invoices for all Services rendered pursuant to this Agreement. Such invoices shall be submitted within 15 days of the end of the month during which the Services were rendered and shall describe in detail the Services rendered during the period, the days worked, number of hours worked, the hourly rates charged, and the Services performed for each day in the period. City will pay Consultant within 30 days of receiving Consultant’s invoice. City will not withhold any applicable federal or state payroll and other required taxes, or other authorized deductions from payments made to Consultant.

5.0 Termination

5.1. Termination by City.

5.1.1. This Agreement may be terminated by City, without cause, upon giving Consultant written notice thereof not less than 30 days prior to the date of termination.

5.1.2. This Agreement may be terminated by City upon 10 days’ notice to Consultant if Consultant fails to provide satisfactory evidence of renewal or replacement of comprehensive general liability insurance as required by this Agreement at least 20 days before the expiration date of the previous policy.

5.2. Termination by Consultant. This Agreement may be terminated by Consultant based on reasonable cause, by serving written notice of termination to City, provided that Consultant has first served City with a written notice of default and demand to cure, and City has failed to cure such default within 30 days of receipt of such notice.

5.3. Obligations Upon Termination. Unless otherwise specified in the notice of termination, Consultant shall cease all work under this Agreement immediately upon the effective termination date set forth in the notice of termination. Upon termination, City shall be immediately given title to and possession of all Work Product (as defined in Subsection 11.1 of this Agreement) and all other documents, writings, and/or deliverables produced or developed pursuant to this Agreement. Provided that Consultant is not then in breach, City shall pay Consultant all undisputed amounts for any portion of the Services satisfactorily completed prior to termination, based on the reasonable value of the Services rendered. If said termination occurs prior to completion of any specific task for which a payment request has not been received, the charge for Services performed shall be the reasonable value of such Services, based on an amount agreed to by City and Consultant. City shall not be liable for any costs other than the charges or portions thereof which are specified herein. In no event shall Consultant be entitled to payment for unperformed services or services within the Scope of Services performed prior to the effective date of this Agreement; and Consultant shall not be entitled to receive more than the amount 6 of 25
RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26 that would be paid to Consultant for the full performance of the Services up to date of termination. Consultant shall have no other claim against City by reason of such termination, including any claim for compensation or damages.

6.0 Party Representatives

6.1. The City Manager is City’s representative for purposes of this Agreement.

6.2. <NAME> is Consultant's primary representative for purposes of this Agreement. <NAME> shall be responsible during the term of this Agreement for directing all activities of Consultant and devoting sufficient time to personally supervise the Services hereunder. Consultant may not change its representative without the prior written approval of City, which approval shall not be unreasonably withheld.

7.0 Notices

7.1. All notices permitted or required under this Agreement shall be deemed made when personally delivered or when mailed 48 hours after deposit in the United States Mail, first class postage prepaid and addressed to the party at the following addresses:

To City: City of Seal Beach
211-8th Street
Seal Beach, California 90740
Attn: City Manager
To Consultant: <Consultant>
<Address>
City, State, Zip Code>
Attn: <Consultant Representative>

7.2. Actual notice shall be deemed adequate notice on the date actual notice occurred, regardless of the method of service.

8.0 Permits and Licenses
Consultant and all of Consultant’s employees and other personnel shall obtain and maintain during the Agreement term all necessary licenses, permits and certificates required by law for the provision of the Services under this Agreement, including a business license as required by the Seal Beach Municipal Code.

9.0 Independent Contractor
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9.1. Consultant is an independent contractor and not an employee of City. All work or other Services provided pursuant to this Agreement shall be performed by Consultant or by Consultant’s employees or other personnel under Consultant’s supervision. Consultant will determine the means, methods, and details by which Consultant’s employees and other personnel will perform the Services. Consultant shall be solely responsible for the satisfactory work performance of all personnel engaged in performing the Services and compliance with the customary professional standards.

9.2. All of Consultant’s employees and other personnel performing any of the Services under this Agreement on behalf of Consultant shall also not be employees of City and shall at all times be under Consultant's exclusive direction and control. Consultant and Consultant’s personnel shall not supervise any of City’s employees; and City’s employees shall not supervise Consultant’s personnel. Consultant’s personnel shall not wear or display any City uniform, badge, identification number, or other information identifying such individual as an employee of City; and Consultant’s personnel shall not use any City e-mail address or City telephone number in the performance of any of the Services under this Agreement. Consultant shall acquire and maintain at its sole cost and expense such vehicles, equipment and supplies as Consultant’s personnel require to perform any of the Services required by this Agreement. Consultant shall perform all Services off of City premises at locations of Consultant’s choice, except (i) as otherwise required for the performance of Services on City real property, facilities, vehicles or equipment; (ii) as otherwise may from time to time be necessary in order for Consultant’s personnel to receive projects from City, review plans on file at City, pick up or deliver any work product related to Consultant’s performance of any Services under this Agreement, or (iii) as may be necessary to inspect or visit City locations and/or private property to perform such Services. City may make a computer available to Consultant from time to time for Consultant’s personnel to obtain information about or to check on the status of projects pertaining to the Services under this Agreement.

9.3. In addition to all other provisions of this Agreement, Consultant shall be responsible for and pay all wages, salaries, benefits and other amounts due to Consultant’s personnel in connection with their performance of any Services under this Agreement and as required by law. Consultant shall be responsible for all reports and obligations respecting such additional personnel, including, but not limited to: Social Security taxes, other retirement or pension benefits, income tax withholding, unemployment insurance, disability insurance, and workers' compensation insurance. Notwithstanding any other agency, State, or federal policy, rule, regulation, statute or ordinance to the contrary, Consultant and any of its officers, employees, agents, servants, and subcontractors providing any of the Services under this Agreement shall not become entitled to, and hereby waive any claims to, any wages, salaries, compensation, benefit or any incident of employment by City, including but not limited to, eligibility to enroll in, or reinstate to membership in, the California Public Employees Retirement 8 of 25
RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26 System (“PERS”) as an employee of City, and entitlement to any contribution to be paid by City for employer contributions or employee contributions for PERS benefits.

9.4. Consultant shall defend, indemnify and hold harmless City. its elected and appointed officials, officers, employees, agents, servants, volunteers, and those City agents serving as independent contractors in the role of City officials, from any and all liability, damages, claims, costs and expenses of any nature to the extent arising from, caused by, or relating to Consultant’s personnel practices. or to the extent arising from, caused by or relating to the violation of any of the provisions of this Section 9.0. In addition to all other remedies available under law, City shall have the right to offset against the amount of any fees due to Consultant under this Agreement any amount due to City from Consultant as a result of Consultant’s failure to promptly pay to City any reimbursement or indemnification arising under this Section. This duty of indemnification is in addition to Consultant’s duty to defend, indemnify and hold harmless as set forth in any other provision of this Agreement. Consultant’s covenants and obligations under this Section shall survive the expiration or termination of this Agreement.

10.0 PERS Compliance and Indemnification

10.1. General Requirements. The Parties acknowledge that City is a local agency member of PERS, and as such has certain pension reporting and contribution obligations to PERS on behalf of qualifying employees. Consultant agrees that, in providing its employees and any other personnel to City to perform any work or other Services under this Agreement, Consultant shall assure compliance with the Public Employees’ Retirement Law (“PERL”), commencing at Government Code § 20000, as amended by the Public Employees’ Pension Reform Act of 2013 (“PEPRA”), and the regulations of PERS, as amended from time to time. Without limitation to the foregoing, Consultant shall assure compliance with regard to personnel who have active or inactive membership in PERS and to those who are retired annuitants and in performing this Agreement shall not assign or utilize any of its personnel in a manner that will cause City to be in violation of the PERL, PEPRA or any other applicable retirement laws and regulations.

10.2. Indemnification. To the maximum extent permitted by law, Consultant shall defend, indemnify and hold harmless City, its elected and appointed officials, officers, employees, agents, servants, volunteers, and those City agents serving as independent contractors in the role of City officials, from any and all liability, damages, claims, costs and expenses of any nature to the extent arising from, caused by, or relating to Consultant’s violation of any provisions of this Section 10.0. This duty of indemnification is in addition to Consultant’s duty to defend, indemnify and hold harmless as set forth in any 9 of 25
RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26 other provision of this Agreement. Consultant’s covenants and obligations under this Section shall survive the expiration or termination of this Agreement.

11.0 Ownership of Work Product

11.1. Unless otherwise agreed upon in writing, all field notes and other notes, draft and final reports, drawings, specifications, data, surveys, studies, plans, maps, models, photographs, images, ideas, concepts, designs including but not limited to website designs, source code, object code, computer files, electronic data and/or electronic files, other media of any kind whatsoever, and any other documents and written material of any kind, created, developed, or used by Consultant in the performance of this Agreement (collectively “Work Product”) shall be considered “works made for hire,” for the benefit of City. Upon completion of, or in the event of termination or expiration of this Agreement, all Work Product and any and all intellectual property rights arising from their creation, including, but not limited to, all copyrights and other proprietary rights, shall be and remain the property of City without restriction or limitation upon their use, duplication or dissemination by City upon final payment being made in accordance with Subsection 5.3, and may be used, reused or otherwise disposed of by City for any purpose without Consultant’s consent; provided that any use, reuse or modification of the Work Product by City for any purpose other than the purpose for which the Work Product was prepared or provided under this Agreement shall be at City’s own risk. Consultant shall not obtain or attempt to obtain copyright protection as to any of the Work Product.

11.2. Consultant hereby assigns to City all ownership and any and all intellectual property rights to the Work Product that are not otherwise vested in City pursuant to Subsection 11.1.

11.3. Consultant warrants and represents that it has secured all necessary licenses, consents or approvals to use any instrumentality, thing or component as to which any intellectual property right exists, including computer software, used in the rendering of the Services and the production of all Work Product produced under this Agreement, and that City has full legal title to and the right to reproduce the Work Product for any purpose. Consultant shall defend, indemnify and hold City, its elected and appointed officials, officers, employees, agents, servants, attorneys, volunteers, and those City agents serving as independent contractors in the role of City officials, harmless from any loss, claim or liability in any way related to a claim that City’s use of any of the Work Product violates federal, state or local laws, or any contractual provisions, or any laws relating to trade names, licenses, franchises, copyrights, patents or other means of protecting intellectual property rights and/or interests in products or inventions. Consultant shall bear all costs arising from the use of patented, copyrighted, trade secret or trademarked documents, materials, equipment, devices or processes in connection with its provision of the Services and Work Product produced under this Agreement. In the event the use of any of the Work 10 of 25
RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26 Product or other deliverables hereunder by City is held to constitute an infringement and the use of any of the same is enjoined, Consultant, at its expense, shall: (i) secure for City the right to continue using the Work Product and other deliverables by suspension of any injunction, or by procuring a license or licenses for City; or (ii) modify the Work Product and other deliverables so that they become non-infringing while remaining in compliance with the requirements of this Agreement. Consultant’s covenants and obligations under this Section shall survive the expiration or termination of this Agreement.

11.4. Upon expiration or termination of the Agreement, Consultant shall deliver to City all Work Product and other deliverables related to any Services performed pursuant to this Agreement without additional cost or expense to City.

If Consultant prepares a document on a computer, Consultant shall provide City with said document both in a printed format and in an electronic format that is acceptable to City.

12.0 Confidentiality

12.1. Consultant may have access to financial, accounting, statistical, and personnel data of individuals and City employees, trade secrets, and/or other information that may be protected under other applicable laws relating to privacy, confidentiality and/or privilege. Consultant covenants that all Work Product (as defined in Subsection 11.1) and/or any other data, documents, writings, discussion or other information created, developed, received or provided by Consultant for performance of this Agreement are confidential, unless such information is in the public domain or already known to Consultant. Consultant shall not release or disclose any such Work Product, or other data, documents, writings, discussion or other information to persons or entities other than City without prior written authorization by City. City shall grant such authorization if applicable law requires disclosure. Consultant, its officers, employees, agents, servants, volunteers and/or subcontractors shall not without written authorization from the City Manager or unless requested in writing by the City Attorney, voluntarily provide declarations, letters of support, testimony at depositions, response to interrogatories or other information concerning the Services performed under this Agreement or relating to any project or property located within the geographical boundaries of City. Response to a subpoena or court order shall not be considered “voluntary,” provided Consultant gives City timely notice of such court order or subpoena.

12.2. Consultant shall promptly notify City should Consultant, its officers, employees, agents, and/or subcontractors be served with any summons, complaint, subpoena, notice of deposition, request for documents, interrogatories, request for admissions or other discovery request, court order or subpoena from any party regarding this Agreement and the work performed thereunder or with respect to any project or property located within the geographical boundaries of City. City may, but has no obligation to, represent 11 of 25
RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26 Consultant or be present at any deposition, hearing or similar proceeding.

Consultant agrees to cooperate fully with City and to provide City with the opportunity to review any response to discovery requests provided by Consultant. However, City’s right to review any such response does not imply or mean the right by City to control, direct or rewrite the response.

12.3. Consultant’s covenants and obligations under this Section shall survive the termination or expiration of this Agreement.

13.0 Subcontractors
No portion of this Agreement shall be subcontracted without the prior written approval of City, and any subcontracting shall be at Consultant’s sole cost and expense. Consultant is fully responsible to City for the performance of any and all subcontractors. All authorized subcontracts, if any, shall contain a provision making the subcontractor subject to the terms, requirements and provisions of this Agreement.

14.0 Prohibition Against Assignment, Transfer or Delegation Consultant shall not assign or transfer this Agreement or any of Consultant’s rights, obligations or interest in this Agreement, or delegate any of its duties under this Agreement, either in whole or in part, without City’s prior written consent, which may be withheld for any reason. Any purported assignment, transfer or delegation without City’s consent shall be void and without effect, and shall entitle City to terminate this Agreement.

15.0 Inspection and Audit of Records
Consultant shall maintain complete and accurate records with respect to all Services and other matters covered under this Agreement, including but expressly not limited to, all Services performed, salaries, wages, payroll, invoices, time cards, cost control sheets, costs, expenses, receipts and other records and Work Product with respect to this Agreement. Consultant shall maintain adequate records on the Services provided in sufficient detail to permit an evaluation of all Services in connection therewith. All such records shall be clearly identified and readily accessible. At all times during regular business hours, Consultant shall provide City with free access to such records, and the right to examine and audit the same and to make copies and transcripts as City deems necessary, and shall allow inspection of all program data, information, documents, proceedings and activities and all other matters related to the performance of the Services under this Agreement. Consultant shall retain all financial and program service records and all other records related to the Services and performance of this Agreement for at least three (3) years after expiration, termination or final payment under this Agreement, whichever occurs later. City’s rights under this Section 15.0 shall survive for 12 of 25
RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26 three (3) years after expiration, termination or final payment under this Agreement, whichever occurs later.

16.0 Safety Requirements
All work performed under this Agreement shall be performed in such a manner as to provide safety to the public and to meet or exceed the safety standards outlined by CAL OSHA and other applicable state and federal laws. City may issue restraint or cease and desist orders to Consultant when unsafe or harmful acts are observed or reported relative to the performance of the Services.

Consultant shall maintain the work sites free of hazards to persons and property resulting from its operations. Consultant shall immediately report to City any hazardous condition noted by Consultant.

17.0 Insurance

17.1. General Requirements. Consultant shall not commence work under this Agreement until it has provided evidence satisfactory to City that Consultant has secured all insurance required under this Section.

17.2. Minimum Scope and Limits of Insurance. Consultant shall, at its sole cost and expense, procure, maintain and keep in full force and effect for the duration of the Agreement, insurance against claims for injuries to persons or damages to property that may arise from or in connection with the performance of this Agreement, as follows:

17.2.1. Commercial General Liability Insurance, with a minimum limit of $2,000,000 per occurrence for bodily injury, death, personal injury and property damage; and if Commercial General Liability Insurance or other form with a general aggregate limit is used, either the general aggregate limit shall apply separately to this Agreement/location or the general aggregate limit shall be twice the required occurrence limit: Coverage shall be at least as broad as the latest version of Insurance Services Office Commercial General Liability coverage (occurrence form CG 0001). If Consultant is a limited liability company, the commercial general liability coverage shall be amended so that Consultant and its managers, affiliates, employees, agents, servants, and other persons necessary or incidental to its operation are insureds.

17.2.2. Automobile Liability Insurance, with a minimum limit of $1,000,000 per accident for bodily injury and property damage. Coverage shall be at least as broad as Automobile Liability: Insurance Services Office Business Auto Coverage form number CA 0001, code 1 (any auto).

17.2.3. Workers’ Compensation Insurance in the amount required by law; and Employer’s Liability Insurance with a minimum limit of $1,000,000 per accident and in the aggregate for bodily injury or disease. 13 of 25
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17.2.4. Professional Liability (or Errors and Omissions Liability) Insurance, with a minimum limit of $1,000,000 per claim/aggregate. Any policy inception date, continuity date, or retroactive date must be before the effective date of this Agreement. If a “claims made” policy is provided, then the policy shall be endorsed to provide an extended reporting period of not less than three years.

17.3. Acceptability of Insurers. The Insurance policies required under this Section shall be placed with insurers with a current A.M. Best's rating no less than A:VIII, licensed to do business in California, and satisfactory to City.

17.4. Additional Insureds.

17.4.1. For general liability insurance, City, its elected and appointed officials, officers, employees, agents, servants, volunteers, and those City agents serving as independent contractors in the role of City officials shall be covered as additional insureds with respect to the services or operations performed by or on behalf of Consultant, including materials, parts or equipment furnished in connection with such work.

17.4.2. For automobile liability insurance, City, its elected and appointed officials, officers, employees, agents, servants, volunteers, and those City agents serving as independent contractors in the role of City officials, shall be covered as additional insureds with respect to the ownership, operation, maintenance, use, loading or unloading of any auto owned, leased, hired or borrowed by Consultant or for which Consultant is responsible.

17.4.3. These additional insured provisions shall also apply to any excess/umbrella liability policies.

17.5. Cancellations or Modifications to Coverage. The insurance policies shall contain the following provisions, or Consultant shall provide endorsements on forms supplied or approved by City to state: (i) coverage shall not be suspended, voided, reduced or canceled except after 30 days (or ten days for nonpayment) prior written notice by certified mail, return receipt requested, has been given to City; (ii) any failure to comply with reporting or other provisions of the policies, including breaches of warranties, shall not affect coverage provided to City, its elected and appointed officials, officers, employees, agents, servants, volunteers, and those City agents serving as independent contractors in the role of City officials;

17.6. Primary and Non-Contributing. Coverage shall be primary insurance as respects City, its elected and appointed officials, officers, employees, agents, servants, volunteers, and those City agents serving as independent contractors in the role of City officials, or if excess, shall stand in an unbroken chain of coverage excess of Consultant's scheduled underlying coverage and that any insurance or self-insurance maintained by City, its 14 of 25
RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26 elected and appointed officials, officers, employees, agents, servants, volunteers, and those City agents serving as independent contractors in the role of City officials, shall be excess of Consultant's insurance and shall not be called upon to contribute with it;

17.7. Separation of Insureds. Each insurance policy shall contain standard separation of insureds provisions and shall not contain any special limitations on the scope of protection afforded to City, its elected and appointed officials, officers, employees, agents, servants, volunteers, and those City agents serving as independent contractors in the role of City officials.

17.8. Deductibles and Self-Insured Retentions. Any deductibles or selfinsured retentions shall be declared to and approved by City. Consultant guarantees that, at the option of City, either: (i) the insurer shall reduce or eliminate such deductibles or self-insured retentions as respects City, its elected and appointed officials, officers, employees, agents, servants, volunteers, and those City agents serving as independent contractors in the role of City officials; or (ii) Consultant shall procure a bond guaranteeing payment of losses and related investigation costs, claims and administrative and defense expenses.

17.9. Waiver of Subrogation. Each insurance policy required by this Agreement shall expressly waive the insurer’s right of subrogation against City, its elected and appointed officials, officers, employees, agents, servants, volunteers, and those City agents serving as independent contractors in the role of City officials. Consultant hereby waives its own right of recovery and all rights of subrogation against City; and shall require similar express written waivers from any subcontractor.

17.10. Enforcement of Agreement Provisions (Non-Estoppel). Consultant acknowledges and agrees that any actual or alleged failure on City’s part to inform Consultant of non-compliance with any insurance requirement does not impose additional obligations on City, nor does it waive any rights hereunder.

17.11. City Remedy for Noncompliance. If Consultant does not maintain the policies of insurance required under this Section in full force and effect during the term of this Agreement, or in the event any of Consultant’s policies do not comply with the requirements under this Section, City may either immediately terminate this Agreement or, if insurance is available at a reasonable cost, City may, but has no duty to, take out the necessary insurance and pay, at Consultant’s expense, the premium thereon. Consultant shall promptly reimburse City for any premium paid by City or City may withhold amounts sufficient to pay the premiums from payments due to Consultant.

17.12. Evidence of Insurance. Prior to the performance of Services under this Agreement, Consultant shall furnish City with original certificates of insurance and all original endorsements evidencing and effecting the coverages 15 of 25
RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26 required under this Section on forms satisfactory to and approved by City. The certificates and endorsements for each insurance policy shall be signed by a person authorized by that insurer to bind coverage on its behalf, and shall be on forms provided by City if requested. Consultant may provide complete, certified copies of all required insurance policies to City. Consultant shall maintain current endorsements on file with City’s Risk Manager. All certificates and endorsements shall be received and approved by City before work commences. City also reserves the right to require complete, certified copies of all required insurance policies, at any time. Consultant shall also provide proof to City that insurance policies expiring during the term of this Agreement have been renewed or replaced with other policies providing at least the same coverage. Consultant shall furnish such proof at least two weeks prior to the expiration of the coverages.

17.13. Insurance Requirements Not Limiting. Requirements of specific coverage features or limits contained in this Section are not intended as a limitation on coverage, limits or other requirements, or a waiver of any coverage normally provided by any insurance. Specific reference to a given coverage feature is for purposes of clarification only as it pertains to a given issue and is not intended by any party or insured to be all inclusive, or to the exclusion of other coverage, or a waiver of any type.

17.14. Broader Coverage/Higher Limits. No representation is made that the minimum insurance requirements of this Agreement are sufficient to cover the obligations of Consultant under this Agreement. Consultant may also procure and maintain, at its own cost and expense, any additional kinds of insurance, which in its own judgment may be necessary for its proper protection and prosecution of the Services. If Consultant maintains broader coverage and/or higher limits than the minimums required above, City requires and shall be entitled to the broader coverage and/or the higher limits maintained by Consultant.

17.15. Subcontractor Insurance Requirements/Pass-Through Clause.

Consultant shall require each of its subconsultants and/or subcontractors that perform Services under this Agreement to maintain insurance coverage that meets all of the requirements of this Section. Consultant agrees to monitor and review all such coverages and assumes all responsibility for ensuring that such coverage is provided in conformity with the requirements of this Section.

Consultant agrees to submit all agreements with consultants, subcontractors, and others engaged in the Services upon City’s request.

17.16. Timely Notice of Claims. Consultant shall give City prompt and timely notice of demands or claims made or suits instituted that arise out of or result from Consultant’s performance under this Agreement, and that involve or may involve coverage under any of the required insurance policies. 16 of 25
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18.0 Indemnification, Hold Harmless, and Duty to Defend

18.1. Indemnity for Design Professional Services. To the fullest extent permitted by law, Consultant shall, at its sole cost and expense, protect, indemnify and hold harmless City, its elected and appointed officials, officers, attorneys, employees, agents, servants, volunteers, successors, assigns and those City agents serving as independent contractors in the role of City officials (collectively “Indemnitees” in this Section 18.0), from and against any and all damages, costs, expenses, liabilities, claims, demands, causes of action, proceedings, judgments, penalties, bid protests, stop notices, liens, and losses of any nature whatsoever, including but not limited to fees of attorneys, accountants and other professionals and all costs associated therewith, and reimbursement of attorneys’ fees and costs of defense (collectively “Claims”), in law or in equity, whether actual, alleged or threatened, to property or persons, including but not limited to, bodily injury, death, personal injury and property damage, to the extent arising out of, pertaining to, or relating to, in whole or in part, the breach of this Agreement and/or the negligence, recklessness or willful misconduct of Consultant and/or its officers, agents, servants, employees, contractors subcontractors, subconsultants and/or their officers, directors, agents, servants or employees (or any entity or individual for whom Consultant shall bear the legal liability) in the performance of design professional services under this Agreement by a “design professional,” as the term is defined under California Civil Code § 2782.8(c). Notwithstanding the foregoing and as required by Civil Code § 2782.8(a), in no event shall the cost to defend the Indemnitees that is charged to Consultant exceed Consultant’s proportionate percentage of fault.

18.2. Other Indemnities.

18.2.1. Other than in the performance of design professional services and to the fullest extent permitted by law, Consultant shall, at its sole cost and expense, protect, defend, hold harmless and indemnify the Indemnitees from and against any and all damages, costs, expenses, liabilities, claims, demands, causes of action, proceedings, judgments, penalties, bid protests, stop notices, liens, or losses of any nature whatsoever, including but not limited to fees of accountants, attorneys and other professionals, and all costs associated therewith, and the payment of all consequential damages (collectively “Liabilities”), in law or equity, whether actual, alleged or threatened, to property or persons, including but not limited to, bodily injury, death, personal injury and property damage, in any manner arising out of, claimed to arise out of, pertaining to, or relating to the breach of this Agreement, and/or any acts, errors, omissions, negligence, or willful misconduct of Consultant, its officers, agents, servants, employees, contractors, subcontractors, subconsultants, materialmen, or suppliers, or their officers, agents, servants or employees (or any entity or individual for whom Consultant shall bear legal liability) in the performance of the Services and/or this Agreement , except to the extent the Liabilities arise from the active or sole negligence or willful misconduct of the Indemnitees as determined 17 of 25
RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26 by final arbitration or court decision or by the agreement of the Parties.

Consultant shall defend the Indemnitees in any action or actions filed in connection with any Liabilities with counsel of the Indemnitees’ choice, and shall pay all costs and expenses, including all attorneys’ fees and experts’ costs actually incurred in connection with such defense. Consultant shall reimburse the Indemnitees for any and all legal expenses and costs incurred by the Indemnitees in connection therewith.

18.2.2. Consultant shall defend, indemnify and hold harmless City in accordance with Sections 9.0 and 10.0.

18.3. Subcontractor Indemnification. Consultant shall obtain executed indemnity agreements with provisions identical to those in this Section 18.0 from each and every subcontractor, subconsultant, or any other person or entity involved by, for, with or on behalf of Consultant in the performance of this Agreement. If Consultant fails to obtain such indemnity agreements, Consultant shall be fully responsible and indemnify, hold harmless and defend the Indemnitees from and against any and all Claims and/or Liabilities in law or equity, whether actual, alleged or threatened, arising out of, claimed to arise out of, pertaining to, or relating to, the breach of this Agreement, any acts, errors, omissions, negligence or willful misconduct of Consultant’s subcontractor, subconsultant or other person or entity, and its officers, agents, servants, employees, materialmen, contractors, subcontractors, subconsultants, or their officers, agents, servants or employees (or any entity or individual for whom Consultant’s subcontractor, subconsultant and/or such other person or individual shall bear the legal liability) in the performance of the Services or this Agreement, except to the extent the Claims and/or Liabilities arise from the sole negligence or willful misconduct of the Indemnitees as determined by final arbitration or court decision or by the agreement of the Parties.

18.4. Workers’ Compensation Acts Not Limiting. Consultant’s indemnification obligations under this Section, or any other provision of this Agreement, shall not be limited by the provisions of any workers’ compensation act or similar act. Consultant expressly waives its statutory immunity under such statutes or laws as to City, its elected and appointed officials, officers, employees, agents, servants, volunteers and those City agents serving as independent contractors in the role of City officials.

18.5. Indemnification Not Limited By Insurance. Procurement of insurance by Consultant is not and shall not be construed as a limitation of Consultant’s liability, or as a waiver of or limitation on full performance of Consultant’s duties of defense and indemnification, under this Section 18.0 or under any other provision of this Agreement. Consultant’s defense and indemnification obligations under this Agreement shall apply regardless of whether or not any insurance policies are determined to be applicable to the Claims or Liabilities asserted against City or any of the other Indemnitees as 18 of 25
RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26 defined in this Section 18.0, and Consultant’s defense and indemnification obligations under this Agreement shall not be restricted to insurance proceeds, if any, received by Consultant, City, or any of the other Indemnitees.

18.6. Survival of Terms. Consultant’s covenants and obligations under this Section 18.0 shall survive the expiration or termination of this Agreement.

19.0 Non-Discrimination and Equal Employment Opportunity Consultant affirmatively represents that it is an equal opportunity employer. In the performance of this Agreement, Consultant covenants that it shall not discriminate, harass or retaliate against any of its employees, applicants for employment, contractors, subcontractors, or subconsultants because or on account of race, religion, color, national origin, handicap, ancestry, sex, gender, sexual orientation, gender identity, gender expression, marital status, national origin, ancestry, age, physical disability, mental disability, medical condition, genetic information, military or veteran status, or any other basis prohibited by law. Consultant further covenants that in the performance of this Agreement, Consultant shall not discriminate, harass or retaliate against City, its elected or appointed officials, officers, employees, agents, servants, volunteers, those City agents serving as independent contractors in the role of City officials, or any of City’s consultants, contractors, subcontractors, or subconsultants, on any basis prohibited by law.

20.0 Labor Certification
By its signature hereunder, Consultant certifies that it is aware of the provisions of Section 3700 of the California Labor Code that require every employer to be insured against liability for Workers’ Compensation or to undertake self-insurance in accordance with the provisions of that Code, and agrees to comply with such provisions before commencing the performance of the Services.

21.0 Prevailing Wage and Payroll Records
To the extent that this Agreement calls for services that, in whole or in part, constitute “public works” as defined in the California Labor Code, Consultant shall comply in all respects with all applicable provisions of the California Labor Code, including those set forth in Exhibit C, attached hereto and incorporated by reference herein.

22.0 Entire Agreement
This Agreement contains the entire agreement of the Parties with respect to the subject matter hereof, and supersedes all prior negotiations, understandings, or agreements. This Agreement may only be modified by a writing signed by both Parties.
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RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26

23.0 Government Code Claim Compliance
In addition to any and all requirements of this Agreement pertaining to notices of and requests for compensation or payment for additional services, disputed work, claims and/or changed conditions, Consultant must comply with the claim procedures set forth in Government Code Section 900 et seq. prior to filing any lawsuit against City. Such Government Code claims and any subsequent lawsuit based upon the Government Code claims shall be limited to those matters that remain unresolved after all procedures pertaining to additional services, disputed work, claims, and/or changed conditions have been followed by Consultant. If no such Government Code claim is submitted, or if any prerequisite contractual requirements are not otherwise satisfied as specified herein, Consultant shall be barred from bringing and maintaining a lawsuit against City.

24.0 Severability
The invalidity in whole or in part of any provisions of this Agreement shall not void or affect the validity of the other provisions of this Agreement.

25.0 Governing Law and Venue
This Agreement shall be governed by and construed in accordance with the laws of the State of California, except that any rule of construction to the effect that ambiguities are to be resolved against the drafting party shall not be applied in interpreting this Agreement. Orange County, California shall be the venue for any action or proceeding that may be brought by reason of, that arises out of, and/or relates to any dispute under this Agreement (whether contract, tort or both).

26.0 Non-Exclusive Agreement
Consultant acknowledges that City may enter into agreements with other consultants for services encompassed by or similar to the services that are subject to this Agreement or may have its own employees perform services encompassed by or similar to those services contemplated by this Agreement.

27.0 No Third Party Beneficiaries
This Agreement is made solely for the benefit of the Parties to this Agreement and their respective successors and assigns, and no other person or entity shall be deemed to have any rights hereunder against either party by virtue of this Agreement.

28.0 Waiver
No delay or omission to exercise any right, power or remedy accruing to City under this Agreement shall impair any right, power or remedy of City, nor shall it be construed as a waiver of, or consent to, any breach or default. No waiver of 20 of 25
RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26 any breach, any failure of a condition, or any right or remedy under this Agreement shall be (i) effective unless it is in writing and signed by the Party making the waiver, (ii) deemed to be a waiver of, or consent to, any other breach, failure of a condition, or right or remedy, or (iii) deemed to constitute a continuing waiver unless the writing expressly so states.

29.0 Prohibited Interests; Conflict of Interest

29.1. Consultant covenants that it presently has no interest and shall not acquire any interest, direct or indirect, which may be affected by the Services, or which would conflict in any manner with the performance of the Services.

Consultant further covenants that, in performance of this Agreement, no person having any such interest shall be employed by it. Furthermore, Consultant shall avoid the appearance of having any interest, which would conflict in any manner with the performance of the Services. Consultant shall not accept any employment or representation during the term of this Agreement which is or may likely make Consultant "financially interested" (as provided in California Government Code §§ 1090 and 87100) in any decision made by City on any matter in connection with which Consultant has been retained.

29.2. Consultant further warrants and maintains that it has not employed or retained any person or entity, other than a bona fide employee working exclusively for Consultant, to solicit or obtain this Agreement. Nor has Consultant paid or agreed to pay any person or entity, other than a bona fide employee working exclusively for Consultant, any fee, commission, gift, percentage, or any other consideration contingent upon the execution of this Agreement. Upon any breach or violation of this warranty, City shall have the right, at its sole and absolute discretion, to terminate this Agreement without further liability, or to deduct from any sums payable to Consultant hereunder the full amount or value of any such fee, commission, percentage or gift.

29.3. Consultant warrants and maintains that it has no knowledge that any officer or employee of City has any interest, whether contractual, noncontractual, financial, proprietary, or otherwise, in this transaction or in the business of Consultant, and that if any such interest comes to the knowledge of Consultant at any time during the term of this Agreement, Consultant shall immediately make a complete, written disclosure of such interest to City, even if such interest would not be deemed a prohibited "conflict of interest" under applicable laws as described in this Section.

30.0 Final Payment Acceptance Constitutes Release
The acceptance by Consultant of the final payment made under this Agreement shall operate as and be a release of City from all claims and liabilities for compensation to Consultant for anything done, furnished or relating to Consultant’s work or services. Acceptance of payment shall be any negotiation of City’s check or the failure to make a written extra compensation claim within 21 of 25
RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26 ten calendar days of the receipt of that check. However, approval or payment by City shall not constitute, nor be deemed, a release of the responsibility and liability of Consultant, its officers, directors, employees, agents, servants. and subcontractors for the accuracy and competency of the information provided and/or work performed; nor shall such approval or payment be deemed to be an assumption of such responsibility or liability by City for any defect or error in the work prepared by Consultant, its officers, directors, employees, agents, servants and subcontractors.

31.0 Corrections
In addition to the indemnification obligations set forth above, Consultant shall correct, at its expense, all errors in the work which may be disclosed during City’s review of Consultant’s report or plans. Should Consultant fail to make such correction in a reasonably timely manner, such correction may be made by City, and the cost thereof shall be charged to Consultant. In addition to all other available remedies, City may deduct the cost of such correction from any retention amount held by City or may withhold payment otherwise owed Consultant under this Agreement up to the amount of the cost of correction.

32.0 Non-Appropriation of Funds
Payments to be made to Consultant by City for any Services performed within the current fiscal year are within the current fiscal budget and within an available, unexhausted fund. In the event that City does not appropriate sufficient funds for payment of Consultant’s Services beyond the current fiscal year, this Agreement shall cover payment for Consultant’s Services only to the conclusion of the last fiscal year in which City appropriates sufficient funds and shall automatically terminate at the conclusion of such fiscal year.

33.0 Mutual Cooperation

33.1. City’s Cooperation. City shall provide Consultant with all pertinent data, documents and other requested information as is reasonably available for Consultant’s proper performance of the Services required under this Agreement.

33.2. Consultant’s Cooperation. Consultant agrees to work closely and cooperate fully with City’s representative and any other agencies that may have jurisdiction or interest in the work to be performed. In the event any claim or action is brought against City relating to Consultant’s performance of Services rendered under this Agreement, Consultant shall render any reasonable assistance that City requires.

34.0 Time of the Essence
Time is of the essence in respect to all provisions of this Agreement that specify a time for performance; provided, however, that the foregoing shall not be 22 of 25
RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26 construed to limit or deprive a Party of the benefits of any grace or use period allowed in this Agreement.

35.0 Attorneys' Fees
If either party commences an action against the other party, either legal, administrative or otherwise, arising out of or in connection with this Agreement, the prevailing party in such litigation shall be entitled to have and recover from the losing party all of its attorneys’ fees and other costs incurred in connection therewith.

36.0 Recitals
City and Consultant acknowledge that the above Recitals are true and correct and are hereby incorporated by reference into this Agreement.

37.0 Titles and Headings
The titles and headings used in this Agreement are for convenience only and shall in no way define, limit or describe the scope or intent of this Agreement or any part of it.

38.0 Corporate Authority
The person executing this Agreement on behalf of Consultant warrants that he or she is duly authorized to execute this Agreement on behalf of said party and that by his or her execution, Consultant is formally bound to the provisions of this Agreement.
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RFP Fifth Street at Electric - Sample Contract Revised: 07/22/26 IN WITNESS WHEREOF, the Parties hereto, through their respective authorized representatives have executed this Agreement as of the date and year first above written.

CITY OF SEAL BEACH
By: _________________________
Patrick Gallegos, City Manager
Attest:

By: _________________________
Gloria D. Harper, City Clerk
Approved as to Form:

By: _________________________
Nicholas Ghirelli, City Attorney
CONSULTANT: <INSERT COMPLETE
LEGAL NAME>, a <INSERT TYPE OF
ENTITY (e.g., a California
corporation>
By: __________________________
Name: __
Its:

By: __________________________
Name: ___
Its:
(Please note, two signatures required
for corporations pursuant to California
Corporations Code Section 313 from
each of the following categories: (i) the
chairperson of the board, the president
or any vice president, and (ii) the
secretary, any assistant secretary, the
chief financial officer or any assistant
treasurer of such corporation.)

PROOF OF AUTHORITY TO BIND

CONTRACTING PARTY REQUIRED
City of Seal Beach Master Approved: 4/24/26
3224469v1

EXHIBIT A

CITY REQUEST FOR PROPOSALS --
Engineering Services for 5th Street at Electric
Avenue Stormwater Treatment Project
City of Seal Beach Master Approved: 4/24/26
3224469v1

EXHIBIT B

PROPOSAL
(Consultant’s Proposal for Professional Engineering
Services, dated XXXXXXXX)
City of Seal Beach Master Approved: 4/24/26
3224469v1

EXHIBIT C

TERMS FOR COMPLIANCE WITH CALIFORNIA LABOR

LAW REQUIREMENTS

1. This Agreement calls for services that, in whole or in part, constitute “public works” as defined in Division 2, Part 7, Chapter 1 (commencing with Section 1720) of the California Labor Code (“Chapter 1”). Further, Consultant acknowledges that this Agreement is subject to (a) Chapter 1 and (b) the rules and regulations established by the Department of Industrial Relations (“DIR”) implementing such statutes. Therefore, as to those Services that are “public works”, Consultant shall comply with and be bound by all the terms, rules and regulations described in 1(a) and 1(b) as though set forth in full herein.

2. California law requires the inclusion of specific Labor Code provisions in certain contracts. The inclusion of such specific provisions below, whether or not required by California law, does not alter the meaning or scope of Section 1 above.

3. Consultant shall be registered with the Department of Industrial Relations in accordance with California Labor Code Section 1725.5, and has provided proof of registration to City prior to the Effective Date of this Agreement. Consultant shall not perform work with any subcontractor that is not registered with DIR pursuant to Section 1725.5. Consultant and subcontractors shall maintain their registration with the DIR in effect throughout the duration of this Agreement. If Consultant or any subcontractor ceases to be registered with DIR at any time during the duration of the project, Consultant shall immediately notify City.

4. Pursuant to Labor Code Section 1771.4, Consultant’s Services are subject to compliance monitoring and enforcement by DIR. Consultant shall post job site notices, as prescribed by DIR regulations.

5. Pursuant to Labor Code Section 1773.2, copies of the prevailing rate of per diem wages for each craft, classification, or type of worker needed to perform the Agreement are on file at City Hall and will be made available to any interested party on request.

Consultant acknowledges receipt of a copy of the DIR determination of such prevailing rate of per diem wages, and Consultant shall post such rates at each job site covered by this Agreement.

6. Consultant shall comply with and be bound by the provisions of Labor Code Sections 1774 and 1775 concerning the payment of prevailing rates of wages to workers and the penalties for failure to pay prevailing wages. Consultant shall, as a penalty to City, forfeit $200.00 for each calendar day, or portion thereof, for each worker paid less than the prevailing rates as determined by the DIR for the work or craft in which the worker is City of Seal Beach Master Approved: 4/24/26
3224469v1
employed for any public work done pursuant to this Agreement by Consultant or by any subcontractor.

7. Consultant shall comply with and be bound by the provisions of Labor Code Section 1776, which requires Consultant and each subcontractor to: keep accurate payroll records and verify such records in writing under penalty of perjury, as specified in Section 1776; certify and make such payroll records available for inspection as provided by Section 1776; and inform City of the location of the records.

8. Consultant shall comply with and be bound by the provisions of Labor Code Sections 1777.5, 1777.6 and 1777.7 and California Code of Regulations, Title 8, Section 200 et seq. concerning the employment of apprentices on public works projects. Consultant shall be responsible for compliance with these aforementioned Sections for all apprenticeable occupations. Prior to commencing work under this Agreement, Consultant shall provide City with a copy of the information submitted to any applicable apprenticeship program. Within 60 days after concluding work pursuant to this Agreement, Consultant and each of its subcontractors shall submit to City a verified statement of the journeyman and apprentice hours performed under this Agreement.

9. Consultant shall not perform work with any subcontractor that has been debarred or suspended pursuant to California Labor Code Section 1777.1 or any other federal or state law providing for the debarment of contractors from public works. Consultant and subcontractors shall not be debarred or suspended throughout the duration of this Contract pursuant to Labor Code Section 1777.1 or any other federal or state law providing for the debarment of contractors from public works. If Consultant or any subcontractor becomes debarred or suspended during the duration of the project, Consultant shall immediately notify City.

10. Consultant acknowledges that eight hours labor constitutes a legal day’s work.

Consultant shall comply with and be bound by Labor Code Section 1810. Consultant shall comply with and be bound by the provisions of Labor Code Section 1813 concerning penalties for workers who work excess hours. Consultant shall, as a penalty to City, forfeit $25.00 for each worker employed in the performance of this Agreement by Consultant or by any subcontractor for each calendar day during which such worker is required or permitted to work more than eight hours in any one calendar day and 40 hours in any one calendar week in violation of the provisions of Division 2, Part 7, Chapter 1, Article 3 of the Labor Code. Pursuant to Labor Code Section 1815, work performed by employees of Consultant in excess of eight hours per day, and 40 hours during any one week shall be permitted upon public work upon compensation for all hours worked in excess of eight hours per day at not less than one and one-half times the basic rate of pay.

11. California Labor Code Sections 1860 and 3700 provide that every employer will be required to secure the payment of compensation to its employees. In accordance with the provisions of California Labor Code Section 1861, Consultant hereby certifies as follows:

City of Seal Beach Master Approved: 4/24/26
3224469v1
“I am aware of the provisions of Section 3700 of the Labor Code which require every employer to be insured against liability for workers’ compensation or to undertake self-insurance in accordance with the provisions of that code, and I will comply with such provisions before commencing the performance of the work of this contract.”

12. For every subcontractor who will perform work on the project, Consultant shall be responsible for such subcontractor’s compliance with Chapter 1 and Labor Code Sections 1860 and 3700, and Consultant shall include in the written contract between it and each subcontractor a copy of those statutory provisions and a requirement that each subcontractor shall comply with those statutory provisions. Consultant shall be required to take all actions necessary to enforce such contractual provisions and ensure subcontractor’s compliance, including without limitation, conducting a periodic review of the certified payroll records of the subcontractor and upon becoming aware of the failure of the subcontractor to pay his or her workers the specified prevailing rate of wages.

Consultant shall diligently take corrective action to halt or rectify any failure.

13. To the maximum extent permitted by law, Consultant shall indemnify, hold harmless and defend (at Consultant’s expense with counsel reasonably acceptable to City) City, its elected and appointed officials, officers, employees, agents, servants, those City agents serving as independent contractors in the role of City officials, and volunteers from and against any demand or claim for damages, compensation, fines, penalties or other amounts arising out of or incidental to any acts or omissions listed above by any person or entity (including Consultant, its subcontractors, and each of their officials, officers, employees, agents and servants) in connection with any work undertaken or in connection with the Agreement, including without limitation the payment of all consequential damages, attorneys’ fees, and other related costs and expenses. All duties of Consultant under this Section shall survive the termination of the Agreement.

EXHIBIT B
CITY OF SEAL BEACH – 2025 ECP TIER 1 - PROJECT X
AWARDED APPLICATION DATED MAY 8, 2025
5TH STREET AT ELECTRIC AVENUE

STORMWATER TREATMENT PROJECT
May 8, 2025
2025 – Project X – Environmental Cleanup Program Tier 1 Mason Dosher
Orange County Transportation Authority
600 South Main Street
Orange, CA 92686

CITY OF SEAL BEACH
5 th Street at Electric Avenue
Stormwater Treatment Project
2025 – Project X – Environmental Cleanup Program Tier 1

TABLE OF CONTENTS

SECTIONS PAGE
ECP Tier 1 Grant Application ……………………………………………………………….……………….1 Section One (General Project Information) …………………………………………………………….1 Section Two (Detailed Project Information & Scoring) ………………………………………………3 Section Three (Additional Project Details) …………………………………………………………….12

ATTACHMENTS
A. Environmental Documentation …………………………………………………………………………A-1 B. Detailed Project Estimate ………………………………………………………………………………..A-5 C. Location Maps & Project Site Photos …………………………………………………………………A-7 D. Detailed Project Schedule ………………………………………………………………………………A-11 E. Design / Concept Drawings and Calculations for Questions #2 and #3…………………..A-13 F. City Council Resolution ………………………………………………………………………………….A-27 G. Project Drainage Areas, Priority Land Use and BMP Locations………………………………A-31 H. Not Applicable
I. Stormwater Treatment Feasibility Study for Marina Hills North, Bridgeport and Old Town…….A-35

PROJECT X
2025 Tier 1 Call for Projects Application for Funding
2025 Project X Tier 1 Application Page 1 of 14

APPLICATION INSTRUCTIONS
Local Agencies applying for Project X ECP funds are required to complete and submit this application. Any projects not in compliance with the CTFP Guidelines will not be eligible for funding.

SECTION I: General Project Information
Applicant Information
Agency: City of Seal Beach
Project Title: 5
th Street at Electric Avenue
Device Type(s) &
Quantity:

One (1) HDS Aqua-Swirl® Trash Capture (AS-9s BYP CW), or equivalent One (1) ARS-FX™ curb opening screens, or equivalent
Project Manager: Kathryne Cho, Deputy Director of Public Works/City Engineer Phone: (562) 431-2527 x 1321
Email: [email protected]
Proposed Funding Summary
Total Project Cost: $ 863,188 Local Match:
(Cash Only, 20% minimum) $ 263,188
M2 ECP Funds
Request: $ 600,000
Project is Part of a
Larger Construction
Effort:

No
Project Readiness & Schedule
City Council Approval: 5/27/2025
Design & Permitting (If Applicable) 10/1/2025
Award of Contract 3/1/2026
Construction/Installation (Start and Completion) Start: 5/1/2026 Completion: 11/30/2026
Application Checklist

YES N/A
A Environmental Documentation (As Applicable)  ☐
B Detailed Project Estimate  ☐
C Location Maps & Project Site Photos  ☐
D Detailed Project Schedule  ☐
E Design/Concept Drawings  ☐
F City Council Resolution  ☐
G Project Drainage Area(s), Priority Land Use(s), and BMP Location(s) shapefiles/KMZs  ☐
H Preliminary agreements with joint and/or third-party entities (As Applicable) ☐ 

PROJECT X
2025 Tier 1 Call for Projects Application for Funding
2025 Project X Tier 1 Application Page 2 of 14
Project Description – Describe the project location and the Tier 1 type improvements proposed. If the project is included in an existing Integrated Water Management Plan, please provide details on why it was included. Use additional pages as needed.

The City of Seal Beach is 11.8 square miles located in the westernmost corner of Orange County with over 2 miles of Pacific Ocean beaches to the south, and the San Gabriel River directly west. The City is relatively flat terrain and has a history of drainage issues. Trash and debris entering the storm drain system often lay on the bottom of drainpipes because there is minimal slope. The potential for clogging and slow drainage during rainstorms has been an on-going concern throughout the city, and Seal Beach Public Works has been pro-active in expanding the installation of stormwater protection devices to mitigate problems. In 2023, City Staff removed 4.5 tons of trash and debris from 218 catch basins during the bi-annual cleanings.

The 5th Street at Electric Avenue Stormwater Treatment Project (Project) is an effort aimed at enhancing local stormwater quality and mitigating downstream impacts by intercepting pollutants before they reach the West End Pump Station (WEPS) and the San Gabriel River. There is a catch basin at this location and a 12-inch CMP, which drains to a junction structure of U/S reach of 5’ (W) x 3’ (H) RCB and the D/S reach of 58” (W) x 36” (H) CMP in Electric Avenue. The current drainage area to this catch basin is approximately 1.8 acres, and the future tributary area to this location is going to be 37.3 acres. The increase of the tributary area will require a construction of 720 feet of 48-inch diameter RCP storm drain in 5th Street from Electric Avenue to Coastline Drive, including crossing of Pacific Coast Highway (PCH). The project upgrades one (1) catch basin equipped with Automatic Retractable Screens (ARS) and constructs a 48-inch RGRCP to efficiently redirect flow into a proposed in-line Hydrodynamic Separator (HDS) system with a bypass extension reconnecting to the Electric Avenue drainage system.

The WEPS is located at the city's western edge and is pivotal in managing stormwater runoff from a substantial 173-acre area encompassing the Bridgeport Community, along with parts of Old Town and Marina Hills North. This serves an area with about 5,000 residents or 20% of the city’s population. The facility's crucial role is highlighted by its two axial-flow pumps, each capable of processing 100 cfs, particularly critical during peak storm conditions.

The proposed 5th Street project is located north of Electric Avenue. This project will enhance the quality of stormwater management and address infrastructure challenges at 5th Street. The current drainage area is approximately 1.8 acres, but the future tributary area is 37.3 acres (21.6% of the total WEPS tributary area). The need for these improvements was highlighted in the Stormwater Treatment Feasibility Study for Marina Hills North, Bridgeport, and Old Town conducted in April 2024. This study utilized hydrology and hydraulic data from the City’s 2008 Master Plan of Drainage Update and the 2018 Marina Drive Storm Drain Study, identifying critical areas for enhancement.

The Project in Seal Beach effectively integrates two advanced Best Management Practices (BMPs): the ARS and the HDS system, each selected to optimize stormwater quality management specific to this urban location. The ARS will be installed adjacent to the new catch basin on 5th Street and is particularly effective during low-flow conditions. The inclusion of the ARS enhances system performance and provides additional screening capacity during high-flow events, reducing the risk of bypass or overflow. The ARS design can efficiently trap up to 95% of trash and debris ¾ inch or larger from the streets. This ensures that the bulk of visible litter is captured before it can reach the catch basin and storm drain system.

PROJECT X
2025 Tier 1 Call for Projects Application for Funding
2025 Project X Tier 1 Application Page 3 of 14
SECTION II: Detailed Project Information & Scoring

1. Describe the need for the selected BMP(s), including nexus to transportation pollutants, and detail the benefits to water quality the BMP(s) will achieve. (up to 15 Points) In Seal Beach, the 5th Street at Electric Avenue Stormwater Treatment project (Project) exemplifies the intersection of urban development and environmental stewardship, focusing on managing transportation-related pollutants. Central to this project is the installation of the Aqua-Swirl® Trash Capture (AS-9s BYP CW) or an equivalent Hydrodynamic Separator (HDS) system. This advanced system is particularly effective in urban settings where pollutants from vehicles, such as oil, grease, and heavy metals, are prevalent. Designed to capture Total Suspended Solids (TSS), floatable trash, debris, coarse sediments, and free oil, the HDS also features a bypass mechanism. This crucial bypass allows the system to handle high-flow demands during intense storms without sacrificing the removal and retention of collected pollutants, ensuring continuous protection of local waterways.

Complementing the HDS, will be the installation of the G2 Construction ARS-FX™ curb opening screen at new catch basins representing the initial phase of debris capture. This screen aligns with Seal Beach's citywide program to preemptively remove ¾ inch debris before it enters further into the stormwater system, enhancing the overall effectiveness of the city's stormwater management strategy.

The Project site is located just northeast of Electric Avenue, is primarily characterized by medium-density residential and commercial properties and is bisected by Pacific Coast Highway (PCH) on its easterly side. Situated within the Marina Hills North, Bridgeport, and Old Town community areas, the development of these areas include homes, buildings, parking lots, green space, smaller lower volume local streets with on-street parking, and a very high percentage (80%) of impervious surfaces.

The planned improvements are within ½-mile proximity to popular beach and recreational areas, which means that the area attracts visitors. These recreational activities for residents and visitors increase local traffic and potentially generate greater amounts of trash and debris, often dropped or blown onto the streets. This exacerbates the challenges of managing increased stormwater runoff and pollutants in an extremely level area only 5 to 9 feet above sea level.

The need for effective stormwater management solutions in the 5th Street and PCH area is critical to address both the volume of runoff from impervious surfaces and the pollution generated by high traffic and recreational activities.

Strategically located, the Project is designed to mitigate these environmental impacts through advanced stormwater treatment practices. The city’s objective is to increase the capturing and treating of local runoff before it reaches the West End Pump Station (WEPS) and the Pacific Ocean. By implementing such measures, the project not only protects these vital water bodies from urban pollutants but also reduces debris in the drainpipes, contributing to the maintenance of mainline flow and enhancing overall water quality management in the area.

Both the proposed Tier 1 HDS Aqua-Swirl® Trash Capture (AS-9s BYP CW) and G2 Construction ARS-FX™ curb opening screens have an extremely high rate of capturing larger non-vehicle pollutants such as small plastics (bottlecaps, food wrappers, etc.) and items that are accidentally dropped (face masks, receipts, etc.) as well as landscaping chemicals (pesticides) and nutrients (phosphorus and nitrogen), and bacteria (animal waste, etc.). We expect a 100% reduction in the most visible forms of pollutants such as plastic debris (food containers, bags, bottles), trash (cigarette butts, paper) and vegetative debris (leaves, branches, landscaping) that end up on the roads, sidewalks, and parking areas from storms, wind, and landscape or overwatering.

The vehicle pollutants are deposited on roadways and parking lots before and during rain events. It includes materials from the mechanical wear of brakes and tires, fuel combustion, and fluid leaks, that drop hydrocarbons and metals (copper, lead, zinc, etc.). The ARS-FX catch basin curb-opening screen and existing catch basin capture systems contribute to removal of larger roadway trash items that often absorb these pollutants or bind to debris such as leaves, grass clippings, and sediment that make up most of the pollutant volume entering stormwater inlets.

PROJECT X
2025 Tier 1 Call for Projects Application for Funding
2025 Project X Tier 1 Application Page 4 of 14
The recommended Aqua-Swirl®, HDS system or equivalent, utilizes hydrodynamic and gravitational forces along with a stainless-steel screen to efficiently provide additional pollutant separation in removing litter and capturing free oil in addition to the debris larger than 5mm, and TSS. These separators excel in removing pollutants commonly associated with transportation, such as oil, grease, heavy metals (like copper and zinc from vehicle wear and tear), and other particulates. By facilitating a separation process where these contaminants are isolated and collected within the unit, hydrodynamic separators prevent contaminants from entering the downstream flow and degrading the water quality reaching local natural waterways. By controlling sediment at the source, these systems help prevent erosion and preserve aquatic ecosystems. They can handle large volumes of water and efficiently remove pollutants and debris with minimal upkeep, making them a cost-effective solution for urban areas with significant transportation-related pollution.

In addition, while the HDS system is primarily designed for water quality improvement, it also contributes to stormwater management by regulating flow rates and reducing the peak flow entering stormwater systems. This capability can help mitigate the risks of flooding in urban areas, especially during heavy rainfall events, thus protecting infrastructure and operations from stormwater surges. HDS systems fit well in urban environments where space is limited and the demand for efficient, effective stormwater treatment is high. They support sustainable urban development by ensuring that stormwater management does not compromise water quality, thereby contributing to the overall health of the urban ecosystem.

Certification as a Full Trash Capture device by the California State Water Resources Control Board is required to confirm its proven efficacy and regulatory compliance. The final HDS design needs to address the City Flood Protection Design Criteria, which requires drainage improvements in areas draining to a pump station (sump conditions) must be designed to convey the peak runoff resulting from a high confidence 25-year storm. The HDS system as a BMP provides significant benefits to water quality by effectively controlling and treating urban and transportation-related pollutants in stormwater runoff.

PROJECT X
2025 Tier 1 Call for Projects Application for Funding
2025 Project X Tier 1 Application Page 5 of 14

2. Based on information provided by the applicant, a cost/benefit calculation will be conducted to compare the total project cost to the area of priority land uses treated by the proposed BMP(s). Please complete the table below: (up to 16 points):

BMP(s)
Type 1 Type 2, etc.

Type(s) of BMP(s) proposed: HDS ARS
Number of each BMP type: 1 1
Total drainage area(s) contributing to each BMP type: 37.3 1.8 including Comm & PCH Total
Drainage area(s) that is/are considered Priority Land Uses*: 1.8 1.8 1.8 Total Project Cost:

$863,188
Cost/Benefit ($/ac of priority land uses):

$479,549
Project Score (to be completed by OCTA):

TBD
*Refer to City General Plans for general land use distribution/coverage information. Refer to the Statewide Trash Provisions for a complete definition of Priority Land Uses (e.g. high density residential, industrial, commercial, mixed urban, public transportation stations).

3. Pollutant Reduction Benefits: Project benefits will be based on treatment capacity and BMP type.

Applicant to provide the calculations used to determine the following scores: (up to 12 points):

Line Factor Points
Available Multiplier Line Score
A Fractional percent of 1-yr, 1-hr event peak flowrate treated by the BMP(s) 1 3 3 B Fractional percent of 85th percentile, 24-hr design event that is treated by the BMP(s) 1.5 3 4.5
C
BMP Multiplier:

0.5 6 3
•0 points if BMP is not low-impact development (LID) or treatment control •1/3 point for high-capacity systems
•2/3 point for filters/biofilters
•1 point for zero-discharge BMPs
Project Score:

10.5 Scoring Equation (Max 12 points): (Ax3) + (Bx3) + (Cx6) Calculations may be provided on a separate sheet (Attachment E)

PROJECT X
2025 Tier 1 Call for Projects Application for Funding
2025 Project X Tier 1 Application Page 6 of 14

4. How effectively will the proposed project deal with the more visible forms of pollutants, such as litter and debris? (up to 10 points)
The City’s proposed project is 100% effective in preventing visible forms of pollutants from entering the waterways and ending up in the receiving waters downstream. Our plan project has two excellent lines of defense. The following describes their contributions:

Automatic Retractable Screen (ARS):

The ARS installation at catch basins serves as a primary line of defense against urban pollution, effectively blocking at least 95% of visible pollutants larger than ¾-inch from entering water systems. It captures a broad spectrum of primary pollutants, including plastics, general trash, vegetative debris, and various urban visible wastes. A secondary benefit includes the capture of pollutants that might adhere to the primary trash and debris such as hydrocarbons and metals like copper, cadmium, and zinc from vehicle runoff, and other substances like pathogens and organic compounds. Regular street maintenance removes visible collections. This project installs only one screen on the new catch basin, but it adds to the existing and expanding inventories. It should be noted that the proposed catch basin will have a 30-ft wide opening.

Hydrodynamic Separator (HDS):

The recommended HDS unit, Aqua-Swirl Trash Capture AS-9s BYP CW model is an in-line unit utilizing a vortex-type hydrodynamic separation technology to effectively remove and capture visible forms of pollutants, such as litter and debris from the adjacent catch basin and upstream runoff. The recommended HDS unit has a container diameter of 9.5 feet (114 inches) with a trash storage capacity of 16.2 cubic-ft. This system operates on the principle of gravitational and hydrodynamic drag forces that facilitate the settling of solids from the flow, thus targeting larger, visible pollutants directly.

The process, in which particles settle and migrate to the center of the swirl chamber floor-where the velocities are lowestensures that even lighter forms of litter and debris can be effectively captured. The design of the sediment pile at the base of the swirl chamber ensures that these settled particles are retained and not re-suspended, which is critical for managing visible pollutants. The use of a 4,700-micron (4.7 mm) perforated screen manages trash and debris collection.

This screen size is adequate to trap 100% (per independent testing) of visible litter larger than 5mm, preventing it from passing through the system while allowing water to flow. The strategic placement and design of the screen, affixed to the base of the arched baffle and extending vertically below it, ensure that captured trash is effectively retained within the system.

The system's ability to capture and retain floatable items and trash on the inlet side of the baffle is a targeted approach to dealing with these pollutants. By capturing pollutants upstream and preventing their progression through the water treatment system, the recommended HDS system ensures that these visible pollutants are effectively managed and removed from the water flow through the system. It is a higher price solution that provides localized stormwater treatment and added benefits of management.

The recommended Aqua-Swirl AS-9s BYP CW model includes features specifically designed to provide a high level of effectiveness in dealing with visible pollutants like litter and debris. Its design also provides easy access to the storage and removal of the captured pollutants.

Table 1.

Aqua-Swirl® Full Capture
Systems Aqua-Swirl® Model
Debris/Oil Storage
Capacity
(gal)
Sediment Storage
Capacity
(ft3)
AS-9S 910 145

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5. What other BMP types were considered for this project? Why was the proposed BMP chosen? (5 points) Due to the relatively flat drainage area, the City has a history of drainage issues. As a result, we must select our stormwater devices carefully. For the 5th Street at Electric Avenue Stormwater Treatment project (Project), the selection of Best Management Practices (BMPs) involved a thorough review of systems that best met the specific needs for enhancing stormwater quality and improving flood control in Seal Beach. This assessment prioritized systems that effectively manage urban runoff and could capture transportation and urban-related pollutants from the stormwater before discharging to the downstream system. The required future maintenance was also considered.

The Automatic Retractable Screen (ARS-FX™) was the selected BMP to be installed at the newly proposed catch basins.

It is consistent with the City’s current water quality program to capture visible trash and larger debris during periods of low flow and preventing such materials from entering the stormwater system. This BMP is valued by cities for its straightforward operation, cost-effectiveness, and minimal maintenance, making it an optimal first line of defense against visible pollutants.

The proposed Aqua-Swirl® Trash Capture (AS-9s BYP CW) HDS is a BMP designed to provide high-flow treatment system capable of providing 100% removal of coarse sediments, debris, and oils/other floatable pollutants contained in stormwater during high intensity rain events. Our research focused on advanced technologies and the assessment of various HDS systems to determine which system would best meet the requirements for this specific location. The selection of the Aqua-Swirl system followed extensive research into various HDS systems, focusing on performance, integration capabilities, and environmental impact including the following:
• Compatibility with Existing Infrastructure: The AQUA-SWIRL system fits with the existing infrastructure at 5th Street, making it an ideal retrofit solution that enhances the current system without necessitating major structural modifications.
• Efficiency in Minimizing Head Losses: The Aqua-Swirl is specifically designed to result in significantly lower head loss during flood control flows compared to other evaluated systems. The internal bypass feature is crucial for maintaining the storm drain system capacity to manage large volumes of water during peak conditions, ensuring effective flood protection.
• Advanced Separation Technology: Utilizing sophisticated hydrodynamic separation technology within a single swirl chamber, the Aqua-Swirl system excels at removing coarse sediment, debris, and free-floating oil. This ensures that only clean water is discharged into the main drainage line. • Regulatory Compliance: The Aqua-Swirl system is recognized by regulatory bodies, including the California State Water Resources Control Board, as a Full Capture System, underscoring its efficacy and compliance with stringent environmental standards.

The maintenance of these ARS-FX devices will be added to the city’s existing program and will not require additional resources. The Aqua-Swirl® Trash Capture (AS-9s BYP CW) will be inspected based on the measured collection rates and cleaned using vacuum trucks. The City selected stainless-steel products to provide extra durability and corrosion resistance, especially in Seal Beach’s marine environment. It will be the second HDS in this community and is estimated to have a +75-design life.

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6. Provide information on proposed BMP performance efficiency and/or effectiveness, including pollutant capture, storage capacity, flow capacity, etc. (up to 6 points) The following performance is based on the manufacturer’s specifications for the proposed Aqua-Swirl® Trash Capture (AS-9s BYP CW) and the G2 Construction, ARS-FX™. The ARS-FX patented devices have been proven effective over the past 17 years over thousands of installations. Note, the City’s experience with the devices is consistent with the information below.

Performance Effectiveness:
• Aqua-Swirl® Trash Capture - 100% reduction in pollutant capture 5mm or larger. • ARS-FX™ - 88% reduction in litter, debris, and pollutants (by weight).

Storage Capacity:
• Aqua-Swirl® Trash Capture – 16.2 cubic-ft
• ARS-FX™ – unlimited volume prevented from entering CB.* *Works in combination with street sweeping to collect pollutants and debris.

Filtered Flow Rates in CFS (cubic feet per second) at 75% of maximum:
• Aqua-Swirl® Water Quality Treatment Flow = 15.8 CFS, @ > 5mm debris • ARS-FX™at various Catch Basin Sizes: 3.5’= 1.45 CFS; 5’= 2.13 CFS; 7’=2.93 CFS; 10’=4.31 CFS; 14’=6.02 CFS; 21’=8.99 CFS; 28’= 12.08 CFS, @ 3/4" filter.

The Aqua-Swirl Stormwater Treatment System is a flow-through water quality device that removes coarse sediment, debris and free-floating oil by utilizing hydrodynamic separation technology within a single swirl chamber. The recommended stormwater treatment unit is Aqua-Swirl Trash Capture AS-9s BYP CW model with a diameter of 114 inches. The water quality treatment discharge capacity is 15.8 cfs with a trash storage capacity of 16.2 cubic-ft. The real-world research performed on installed ARS-FX devices achieved a 95% reduction in annual trash from entering the storm drain system.

Per the City of Seal Beach Flood Protection Design Criteria, the drainage improvements in areas that drain to a pump station (sump conditions) must be designed to convey the peak runoff resulting from a high confidence 25-year storm. The flood control and water quality design flows are as follows:

The Aqua-Swirl® meets the LEED Sustainable Sites (SS) 6.2, Stormwater Design - Quality Control criteria of having completed independent testing to demonstrate 80% TSS removal on a net annual basis. Use can directly contribute to gaining one (1) LEED Credits.

The Aqua-Swirl® has met the California State Water Resources Control Board as a Full Capture System. The Aqua-Swirl® is categorized as a High Flow Capacity Trash Treatment Control Device. Trash is defined by the State Water Board as particles 5.0 mm (5,000 microns) or greater.

7. Project Readiness: How long after OCTA Board of Directors approval (anticipated August 2025) will the project be operational (select one)? (up to 6 points):
☐ <4 Months
6 Points
☐ 4 – 8 Months
4 Points
☐ 8 – 12 Months
2 Points
☒ > 12 Months
1 Point

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8. Will the project provide any secondary benefits beyond water quality improvements (i.e., water-use efficiency, public awareness, flood control, recreation, habitat, sustainability)? (up to 5 points) The 5th Street at Electric Avenue Stormwater Treatment project (Project) installation of ARS-FX curb-opening screens and the in-line Aqua-Swirl Trash Capture unit will provide many secondary benefits:
• The Project effectively prevents visible trash and debris from entering and clogging the pipes, which significantly reduces potential flood risks, which is vital for protecting both residential areas and commercial properties from water-related damage.
• The installation of ARS-FX curb-opening screens in Seal Beach reinforces the city's on-going commitment to protecting catch basins from trash and pollutants, visibly demonstrating the prioritization of clean rainwater systems. This initiative enhances community pride and promotes environmental stewardship, while also raising public awareness about the importance of maintaining stormwater quality.
• As a beach community, reducing stormwater pollution is essential for protecting aquatic life. The Project design for full capture of trash, debris, and pollutants will substantially enhance the safety of birds, fish, and wildlife, which often mistake trash for food. In addition, plastics and trash can entangle birds and animals and/or be swallowed, lead to death. Equally important, sustainability of stream beds, shores, and soil beneath flowing water, will benefit reduced pollution levels over the long term. • Economically, the reduction of trash in waterways and on beaches can have a significantly positive impact on tourism. As a beach city that attracts tourists, this is important to the local economy. Pollution on beaches decreases the number of visitors seeking to vacation in Seal Beach or other Orange County locations. The Project will reduce trash on beaches and in the ocean. • Additionally, maintaining a clean and sustainable environment through such initiatives not only protects our natural habitats but also supports and increases property values by demonstrating the community's commitment to environmental responsibility to both existing owners and potential buyers. • Recreation and human safety are improved downstream. The benefit to children and adults playing in the water and on the beach downstream is improved because there are fewer sharp objects and unhealthy bacteria.
• Another benefit is that the city can use this project as a vital educational tool, enhancing public awareness about stormwater management and its environmental impacts. Through visible signage and strategic press releases, the initiative clarifies that storm drains do not connect to the sewer system but directly discharge into local waterways. The visible screens, consistent with previous initiatives, act as daily reminders to the community that substances such as grass clippings, motor oil, and paint should never be disposed of in catch basins. This educational approach not only raises awareness but also promotes responsible environmental practices among residents.

The installations also demonstrate the City's commitment to doing its part in preventing pollution from entering our waterways. Throughout the year, the City provides educational brochures at various events. Having a visible example of the City’s efforts reinforces the message shared year-around.

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2025 Project X Tier 1 Application Page 10 of 14

9. What is the methodology for measuring pollutant reduction before and after the BMP is implemented? How frequently will monitoring and performance assessment occur? (up to 10 points) The City’s methodology for measuring pollutant reduction and monitoring performance is planned as follows:

1. Trash and debris removed from the Aqua-Swirl Trash Capture AS-9s BYP CW Hydrodynamic Separator (HDS) will be weighed and documented. The review of litter, debris, and organic waste will entail recording observations of the accumulated content. This information will be included in the annual performance assessment and reported to the Regional Water Quality Control Board as part of the NPDES annual report. Each year’s data will be reviewed and compared with prior data to quantify the effectiveness of the Aqua-Swirl Trash Capture AS-9s BYP CW HDS.

2. The City’s Maintenance staff will visually observe the volume of pollutants and debris built up in front of the ARS-FX screens and record their findings. Staff drive on the roadways routinely and will provide input and feedback about the amount and types of pollution. Special inspections will be conducted following storm events.

3. Visual inspections of the Aqua-Swirl Trash Capture AS-9s BYP CW HDS will be made while viewing through the removed top manhole cover and measured using a stadia rod. Trash and debris that need to be removed between regularly scheduled cleanings will also be measured and recorded. This data will be added to the data from the regular cleanings.

4. Discussions and interviews with the street sweeping crews regarding the types and quantity of trash swept from in front of ARS-FX screens will help in the understanding of this project’s pollution reduction performance. This will help identify specific catch basins and grated inlets that need more attention and/or more frequent cleaning.

The City’s staff will perform the ongoing best management practices and methods for monitoring and performance assessment.

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2025 Project X Tier 1 Application Page 11 of 14

10. Provide an operations and maintenance plan for the lifespan of the proposed project. Include schedule of inspections, cleaning, removal and disposal of pollutants, repairs, etc. (up to 15 points) As with all devices, the City will establish routine maintenance schedules to inspect, document, remove collected materials, and repair/replace damaged equipment. Inspections will document the verification of each device’s working order, visual condition, observed quantities and types of collected trash/pollutants, and identified issues that need to be addressed by City maintenance or the manufacturer. The selected BMP devices are constructed of durable materials and do not have significant moving parts so repairs should be basic and with a low frequency. Any needed repairs will be recorded and reported by the maintenance inspector for repairs by City maintenance or the manufacturer. After a significant storm event the City will visually inspect streets for needed trash and debris removal.

Maintenance of Automatic Retractable Screen (ARS): The ARS will be cleaned and visually observed per the city’s bi-monthly street sweeping schedule that removes surface debris from the local roadways. The City will include the 5th Street locations on their citywide annual inspections of ARS and catch basins with repairs schedule as needed.

Maintenance | Hydrodynamic Separator: The Aqua-Swirl® trash capture system will be maintained according to the site-specific Inspection & Maintenance Manual to maintain design hydraulic capacity. The city will conduct periodic system inspections and maintenance to determine the necessity for disposal of captured material to ensure the system's proper operation over its estimated +75-year design life. Hydrodynamic separators are known for their efficiency in pollutant removal and ease of maintenance. They can manage large volumes of water and efficiently remove pollutants with minimal upkeep, making them a cost-effective solution for urban areas with significant transportation-related pollution. It is essential to remember that all Best Management Practices (BMPs) require some level of maintenance, which will vary based on site specific pollutant loading conditions and additional upstream screening.

Maintenance: Key inspection activities include observing floating materials and measuring sediment accumulation at the swirl chamber's base from the ground surface, eliminating the need to enter the device.

Typical maintenance includes the vacuuming and disposal of floatable pollutants and sediment from the swirl chamber. There are no moving parts to replace, but if the screen components were to become damaged, it will be necessary to access the unit to assess the extent of damage to determine an appropriate course of action to make a repair. The external bypass and convergence structures will also be inspected and cleaned as feasible during the regular ARS/swirl chamber maintenance. Proper health and safety protocols will be followed during all inspection and maintenance events. All materials removed during the maintenance process will be handled and disposed of in accordance with all applicable federal, state, and local guidelines.

Construction/Installation Phase:
• Initial Inspections: Inspect the system every three months during the construction phase and clean as needed. Our proposed vendor will provide an Inspection and Maintenance Manual for this specific project installation to provide the City maintenance with a guide to tracking and documenting system operations.
• End of Construction: Regardless of sediment or oil storage capacity, inspect and clean the system at the construction phase's conclusion. Cleaning can typically be performed using a vacuum truck.

Post-Construction Maintenance:
• First Year: Inspect the system quarterly and clean as required. This year will be used to determine the pattern of existing loads and to determine the recommended schedule and number of required annual inspections and clean outs. At a minimum, City maintenance will inspect and clean the system annually, even if it has not reached its capacity for sediment or floatable pollutants. There should also be a

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planned system inspection following measurable local rainfall events, and the unit should be cleaned if the depth of the materials at the center reaches 14 inches. • Subsequent Years: The system will continue to be inspected and cleaned based on the first year’s observed pollutant loading conditions at this site. If the system does not reach full capacity for sediment or pollutants during these subsequent annual inspections, it is assumed that annual inspections and cleaning will be sufficient. However, if full capacity is reached within shorter time frames during the first or subsequent years, then maintenance will be adjusted, as necessary. Ongoing system inspection following measurable local rainfall events and clean-outs should be performed as needed.

11. BONUS: Is the proposed local match over the 20% minimum cash match requirement? If yes, enter match rate here. (0.5 points for each 5% overmatch, up to 5 points) Yes, the City will provide a 30% match.

Note: In-kind services are not eligible as local match
SECTION III: Additional Project Details

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Match Sources
Other Grants: Non-M2 competitive grants may be used as match. Any grants used as match must be dedicated to the project for match credit to be received. Please list the name and amount of match sources.

The City of Seal Beach will utilize its local discretionary funds to provide the 20% match required for the project. No other grant program funds are proposed to be used as a match.

Supplanting or Replacing Funds
ECP funds are designed to supplement, not supplant, existing water quality programs. Proposed projects must improve and not replace existing pollution reduction efforts by an eligible party. Please clarify that the proposed project will not be supplanting any existing water quality programs or other obligations.

The proposed 5th Street at Electric Avenue project will contribute to the advancement of water quality goals without replacing or diminishing the scope of ongoing initiatives. It also does not supplant any existing City of Seal Beach water quality programs or other obligations.

Joint Applicant Information (if applicable)
See program guidelines for details on joint applicant applications and enter the details below.

Local Agency: Click to enter text. Local Agency: Click to enter text.

Project Manager: Click to enter text. Project Manager: Click to enter text.

Phone: Click to enter text. Phone: Click to enter text.

Email: Click to enter text. Email: Click to enter text.

Additional Comments
Click here to enter text.

PROJECT X
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ATTACHMENT A

ENVIRONMENTAL DOCUMENTS
A-1
A-2
A-3
A-4

PROJECT X
2025 Tier 1 Call for Projects Application for Funding

ATTACHMENT B

DETAILED PROJECT ESTIMATE
A-5
Item
No. Description Quantity Unit Unit Price Sub-Total Amount A1
Mobilization and demobilization; including but not limited to:
preparation of a Stormwater Pollution Control Program
(SWPCP) and placement and maintenance of BMPs during
the construction period, complete and in place.
1 LS $35,000 $35,000
A2
Provide construction traffic control; including but not limited to: preparing a traffic control plan, provide and maintain traffic control, complete and in place throughout the Project. 1 LS $18,000 $18,000
A3 Provide shoring design, phased as necessary, sealed and stamped by a California registered structural engineer. 1 LS $10,000 $10,000 A4
Implement dewatering 24-hour per day and 7 days per
week, regardless of the various groundwater level
conditions.
1 LS $165,000 $165,000
A5
Provide and implement trench and excavation safety
measures throughout the project, including sheeting,
shoring and bracing.
1 LS $40,000 $40,000
A6
Clear and grub the construction site in phases to match the project schedule, demolish existing paving, landscaping, trees; haul away and legally dispose removed materials. 1 LS $10,000 $10,000
A7
Permitting, removal, transport, treatment and/or disposal of contaminated soil per actual quantity only if required. For bidding purpose, 50-ton of quantity is specified. The City will pay this Item per actual quantity.
50 TON $220 $11,000
A8
Additional over-excavation and placement of 1-1/2” and ¾” crushed rock bedding material wrapped in filter fabric per actual quantity only if required. For bidding purpose, 15- ton of quantity is specified. The City will pay this Item per actual approved quantity.
15 TON $220 $3,300
A9
Remove and dispose of non-friable asbestos materials –
For bidding purpose, this cost shall be based on 100 feet of Asbestos Cement Pipe. The final payment for this Item will be paid based on the actual approved length of the
asbestos cement pipe removed and disposed of regardless the size and depth of the pipe.
100 LF $150 $15,000
Subtotal = $307,300
B1 Remove and dispose of conflicting existing storm drain pipe line, catch basin and others. 73 LF $250 $18,250
B2
Construct 48-inch RGRCP ("D" load= 4000), including
excavation, bedding, backfill, compaction, and resurfacing, sidewalk, landscaping in place per City approval.
57 LF $1,500 $85,500
B3
Construct Curb Opening Catch Basin (W=28' & B=7') at 5th Street with Local Depression per SPPWC STD., and
equipped with Automatic Retractable Screens, United
Storm Water, INC. WING-GATE ARS (304 Stainless Steel).
1 EA $40,000 $40,000
B4
Demolition and Removal of Existing RCB and Re-Construct Manhole & Junction Structure (8' X 8' x 6'(H) RCB) for
connecting with the existing storm drain.
1 EA $80,000 $80,000
B5 Construct Aqua-Swirl Trash Capture Unit No. "AS-9s BYP CW" model per AquaShield Inc. Manufacture STD. 1 EA $135,000 $135,000 B6
Remove and dispose of existing 8-inch asbestos cement
water main legally and relocate / replace with 8-inch
diameter PVC C-900 DR-14 pipe, including testing and
reconnections.
1 LS $22,000 $22,000
B7
Abandon existing storm drain in place. Plug ends with 560- C-3250 concrete and fill with the existing pipe wit two sack cement slurry.
1 LS $2,500 $2,500
Subtotal = $383,250
ITEM A: BASE BID ITEMS (ITEMS A1 THRIUGH A9) = $307,300 ITEM B: STORM DRAIN BID ITEMS (ITEMS B1 THROUGH B7) = $383,250 DESIGN / PM / CM COST (15%) = $103,583
CONTINGENCIES (10%) = $69,055
TABLE 1

ITEM A - BASE BID ITEMS

ITEM B - STORM DRAIN BID ITEMS
5TH STREET ADJACENT TO ELECTRIC AVENUE

ENGINEER'S OPINION OF CONSTRUCTION COST

STORMWATER TREATMENT FEASIBILITY STUDY
5TH STREET AT ELECTRIC AVENUE INTERSECTION

FOR MARINA HILLS NORTH, BRIDGEPORT, AND OLD TOWN AREA

CITY OF SEAL BEACH
May 2025

GRAND TOTAL OF PROJECT
Grand Total = $863,188
A-6

PROJECT X
2025 Tier 1 Call for Projects Application for Funding

ATTACHMENT C

LOCATION MAPS & PROJECT SITE
PHOTOS
A-7
Legend
5th Street at Electric Avenue
Stormwater Treatment Project
Drainage Sub-Area (37.3 acres)
A-8
Proposed removing
existing and replacing
with 28 ft catch basin on
5th Street A-9
Underground
installation of
proposed HDS with
connections to
primary influent
drain to WEPS A-10

PROJECT X
2025 Tier 1 Call for Projects Application for Funding

ATTACHMENT D

DETAILED PROJECT SCHEDULE
A-11
Board Award OCTA Letter Agreement
Design
EA
Bid/Award of
Contract
Construction
Month
Quarter
7 months
3 4 5 6 7
City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project Estimated Project Schedule
5 months

CEQA CE
16 Oct-26 Nov-26
8 9 10 11 12 13 15
May-26 Jun-26 Jul-26 Aug-26 Sep-26
14 2 months
Aug-25
1 2
Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Apr-26 A-12

PROJECT X
2025 Tier 1 Call for Projects Application for Funding

ATTACHMENT E

DESIGN/CONCEPT DRAWINGS
CALCULATIONS FOR QUESTIONS #2
AND #3

A-13

STORMWATER TREATMENT FEASIBILITY STUDY

FOR MARINA HILLS NORTH, BRIDGEPORT,

AND OLD TOWN AREA

STORMWATER TREATMENT FEASIBILITY STUDY
IN 5TH STREET ADJACENT ELECTRIC AVENUE
2 15
10+00 11+00
10 5
0 -5
-10
15 10
5 0
-5
-10

ELECTRIC
AVENUE 5TH STREET
A-14
Projected View
SCALE 1:80
Plan View
SCALE 1:40
Elevation View
2733 Kanasita Drive, Suite 111, Chattanooga, TN 37343 SCALE 1:40 Phone (888) 344-9044 Fax (423) 826-2112
www.aquashieldinc.com
Structure #:

Drawn By:

Scale:

Date:

OFlores
9/15/2022
Rvwed Rvw. Date
U.S. Patent No. 6524473 and other Patent Pending
Aqua-Swirl® Trash Capture
Standard Detial
As Shown
el. Varies
Inlet/Outlet Invert
el. Varies
el. Varies
Grade (Rim) el. Varies
Out el t In el t
AS-9s BYP CW
AS-9s STD
Aqua-Swirl® Polymer Coated Steel (PCS)
Stormwater Treatment System
12 in
[305 mm]
Manhole Frame & Cover Detail
For Non-Traffic Areas Only
NTS
48 in
[1219 mm] Min.

Gravel Backfill
Concrete
Wrap Compressible Expansion
Joint Material to a minimum
1/2-inch [13 mm] thickness around
top of riser to allow transfer of
inadvertent loading from
manhole cover to concrete slab.

Riser
Soil
Cover
Frame
1/2 in
[13 mm]
1/2 in
[13 mm]
Place small amount of
concrete [3,000 psi [20
MPa] (min)] to support
and level manhole frame.

DO NOT allow manhole
frame to rest upon riser.

Backfill (90%
Proctor Density)
8 in
[203 mm]
4 1/2 in
[114 mm]
Unless other traffic barriers are present,
bollards shall be placed around access riser(s)
in non-traffic areas to prevent inadvertent
loading by maintenance vehicles.

Manhole Frame & Cover Detail
For Traffic Loading Areas
NTS
Cover
Frame
48 in
[1219 mm] Min.

Backfill (90%
Proctor Density)
3,000 psi [20 MPa]
(min) Concrete
#4 [13 mm] Rebar
@ 6 in [152 mm]
Each Way
30 in [762 mm]
Riser
1/2 in
[13 mm]
4 1/2 in
[114 mm]
14 in
[356 mm]
1/2 in [13 mm] Thick
Expansion Joint
Material
If traffic loading (HS-25) is required or anticipated, a 4-foot [1.22 m] diameter, 14-inch [356 mm] thick reinforced concrete pad must be placed over the Stormwater Treatment System Riser to support and level the manhole frame, as shown. The top of riser pipe must be wrapped with compressible expansion joint material to a minimum 1/2-inch [13 mm] thickness to allow transfer of wheel loads from manhole cover to concrete slab. Manhole cover shall bear on concrete slab and not on riser pipe. The concrete slab shall have a minimum strength of 3,000 psi [20 MPa] and be reinforced with #4 [13 mm] reinforcing steel as shown. Minimum cover over reinforcing steel shall be 1-inch [25 mm]. Top of manhole cover and concrete slab shall be level with finish grade.

Please see accompanied Aqua-Swirl® specification notes. See Site Plan for actual system orientation. Approximate dry (pick) weight:
5900 lbs [2700 kg].

Backfill shall extend at least 18
inches [457 mm] outward from
Swirl Concentrator and for the
full height of the Swirl
Concentrator (including riser)
extending laterally to
undisturbed soils. (See MH
Detail Below)
Pipe coupling
by Contractor.
12 in [305 mm]
long Stub-out
by Manufacturer.

Octagonal Base Plate
Pipe coupling
by Contractor.
12 in [305 mm]
long Stub-out
by Manufacturer.

Varies Varies
Internal Baffles
Riser
n114 in
[n2900 mm]
126 in
[3200 mm]
126 in
[3200 mm]
68 in
[1727 mm]
116 in
[2946 mm]
5 in
[127 mm]
MH Frame
n30 in
[n762 mm]
n36 in
[n914 mm]
n36 in
[n914 mm]
Rim elevations to
match finish grade.
n114 in
[n2896 mm]
1 1
As an alternative, 42 in [1067 mm] diameter, HS-20/25
rated precast concrete rings may be substituted. 14 in
[356 mm] thickness must be maintained.

AS-9s BYP inlet/outlet pipe size ranges from 21 in [533 mm] to 54 in [1372 mm].

AS-9s chamber height may vary from 101 in [2565 mm]
to 134 in [3404 mm], depending on inlet/outlet pipe size.

Orientation may vary from a minimum of 90° to a
maximum of 180°.

Manhole Frame and
Cover by Manufacturer.
(See Details)
180°
2 3
4 2
3 4
2 Band Coupler
by Manufacturer.
(as needed) Lifting Lugs
Backfill
Bedding
Undisturbed soil
18 in
[457 mm]
6 in
[152 mm]
Trash Screen
Lifting Lugs
Figure 4
AQUA-Swirl Trash Capture
AS-9s BYP CW
Standard Detail A-15
A-22 A-16
A-23
A-17
___________________________________________________________________________________________ [email protected] www.G2construction.com Santa Ana 714.748.4242 DBE, MBE & SBE Certified California ARS-FX™Patented
Fixed Curb-Opening Device ___________________________________________________________________________________________ G2’s ARS-FX™ fixed curb-opening screen with
prevents trash and debris from entering catch basins
through the curb opening.

Reduces catch basin cleaning costs and CPS-Mod™
maintenance. Prevents up to 95% of trash and
debris from entering the catch basin.
• Made from 304 Stainless-Steel for extended life.
• Custom designed, fabricated & fitted to each
curb opening. “Made in California, USA”
• Sized to meet or exceed 1-year, 1-hour storm*.
• Trash Amendment Track 2 compliance.
• Professionally installed by G2. Recommended
with G2’s CPS-Mod Series™

A-24 A-18
_________________________________________________________________________________________ [email protected] www.G2construction.com Santa Ana 714.748.4242 DBE, MBE & SBE Certified California ARS-FX™Patented
Fixed Curb-Opening Device _________________________________________________________________________________________ ARS-FX™ Fixed Trash Screen for Curb-Openings

Function:
• Stops all pollutants ¾ inches and larger from entering catch basins and water systems. • Prevents 95% of trash and debris from entering through the curb-face opening. • Reduces cleaning frequency for catch basins and maintenance of CPS-Mod™ (Full-Capture Systems). • Low maintenance requirements. No replacement parts needed. • Works in combination with street sweeping, and durable against brushes. • Remains closed during storms to always prevent trash and debris during first-flush and after. • Pollutants prevented from entering the catch basin:
 Primary: plastics (bottles, containers, bags); trash (Styrofoam, wrappers, paper, cigarette butts, cans); vegetative debris (leaves, landscaping); pollutants (animal waste, paint, materials).  Secondary: pollutants absorbed by or attached to the Primary pollutants. Including from vehicles (hydrocarbons, fluids, copper, cadmium, zinc, tires, etc.), pathogens / bacteria, pesticides, nutrients, organic compounds, sediment toxicity, etc.

Design & Flexibility:
• Custom designed and fabricated for each catch basin’s curb opening. • Fits any standard curb-face catch basin opening.
• Works with both grated and non-grated catch basins.
• Not recommended in sump locations with a grate unless designed with large bypass for overflow.

Material & Fabrication:
• 100% stainless-steel device (Type 304, 12 gauge).
• Fabricated in Orange County. “Made in California, USA” Value:
• Significantly reduces catch basin cleaning requirements and costs. • Low initial capital investment relative to other storm water quality BMPs. Lower long-term and total lifetime costs vs. any water quality BMP or taking no action. • Requires no replacement filters or parts.
• Works in harmony with existing street sweeping programs.

Aesthetics & Environmentalism:
• Beautiful stainless-steel devices add aesthetic value to streets and neighborhoods. • Residents perceive the ARS-FX™ to be an environmental benefit and demonstrates an environmentally conscious community.

Recommended with G2’s CPS-Mod Series™ screens, for the most complete full capture system.

A-25 A-19
G2 ARS-FX
Fixed Trash Screen
Curb-Opening Cover
TM
Patent Pending Front View Drawing not to scale 1234 Type 304 S.S. 12 gauge with 34" perforated holes Type 304 S.S. Flat plate 316" x 1-1/2" wide (kickplates) Typical concrete local depression or traffice rated grates 24" x 40". Typical existing catch basin steel blub or face angle2 1 4 NOTE; DIMENSIONS FOR SCREEN VARIES BY CATCH BASIN AND CUSTOMER NEEDS PROPRIETORY PROPERTY G2 ARS-FX - Trash Compliance Technology 18" 3 Manufactured and Installed Exclusively by:

Office (714) 748- 4242
CA Lic. # 801253 A, C-8, C-60
G2 Construction, Inc. [email protected] Santa Ana, CA 92705 1352 E. Borchard Avenue
A-26
A-20
City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment
Type 1 Type 2, etc.

Type(s) of BMP(s) proposed: HDS ARS
Number of each BMP type: 1 1
Total
Drainage area(s) that is/are considered
Priority Land Uses*:

1.8 1.8 1.8
Total Project Cost: $863,188
Cost/Benefit ($/ac of priority land
uses):
$479,549
Project Score (to be completed by
OCTA):

TBD
BMP Multiplier:
•0 points if BMP is not low-impact
development (LID) or treatment
control
•1/3 point for high-capacity systems
•2/3 point for filters/biofilters
•1 point for zero-discharge BMPs
1 *Per City General Plans for land use and Statewide Trash Provisions (high density residential, industrial, commercial, mixed urban, public transportation stations).

2. Cost/Benefit Calculation for priority land uses by proposed BMP(s).

BMP(s)
Total drainage area(s) contributing to
each BMP type:

37.3 1.8 including Comm &
PCH
B

10.5 3. Pollutant Reduction Benefits: Treatment capacity and BMP type.

Fractional percent of 85th percentile,
24-hr design event that is treated by
the BMP(s)

1.5 3 4.5
C 0.5 6 3
Factor Points Available Multiplier
Project Score:
1 CALCULATIONS FOR QUESTIONS #2 AND #3
Line Score
A
Fractional percent of 1-yr, 1-hr event
peak flowrate treated by the BMP(s)
3 Line
3 A-21
Land Use: Mixed Use - Medium Density Residential and with Commercial BMP(s):

HDS Unit: One (1) Aqua-Swirl® Trash Capture, Type - AS-9s BYP CW in 5th Street ARS-FX™ Curb Opening Screen: One (1) ARS in 5th Street
Total Drainage Area: 37.3 Acres at HDS Unit
Total of 1.8 Acres Priority Land Use Area
Land Use Impervious: 80%
Total Project Cost: $863,188
$479,549 / PLU Acre Cost/Benefit
2 City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment
Project Summary
Analysis for HDS Aqua-Swirl Trash Capture AS-9s BYP CW
and G2 Construction ARS-FX Devices
A-22
Precipitation Intensity "i": 0.44
Source: NOAA Precipitation Frequency Estimates CA
Criteria Value Unit
Time of Concentration of Priority Land Uses (Tc) 12 min Tc Multiplier 0.219 in/hr
Fraction of design storm entering the BMP 1
Equivalent BMP design intensity 0.219 in/hr
Criteria Value Unit Criteria Value Unit
C = (0.75 × imp) + 0.15 = (0.75 x 80%) + 0.15= 0.75 C = (0.75 × imp) + 0.15 = (0.75 x 80%) + 0.15= 0.75 i = 1-yr, 1-hr intensity= 0.44 in/hr i = 1-yr, 1-hr intensity= 0.44 in/hr Land Imperviousness 80% Land Imperviousness 80%
Acres 37.3 ac Acres 37.3 ac
Q = (0.75) (0.44 in/hr) (37.3 ac)= 12.3 cfs Q = (0.75) (0.44 in/hr) (37.3 ac)= 12.3 cfs HDS design flowrate (from manufacturer) 15.8 cfs W=28' of Designed Filter Flowrate Avg this project (ARS-FX) 12.1 cfs Fractional percent of 1-yr, 1-hr event filtered by BMP
BMP = 15.8 / 12.3 =

1.3 Fractional percent of 1-yr, 1-hr event filtered by BMP BMP =12.1 / 12.3 =

1.0 Max available points = Max available points =
3 Precipitation Intensity
Fractional percent of 85th percentile, 24-hr design event that is treated by the BMP Use multiplier to calculate the design storm intensity equivalent to the design storm depth:
5th Street at Electric Avenue Stormwater Treatment
BMP 1: HDS Aqua-Swirl Trash Capture AS-9s BYP CW BMP 2: ARS-FX Curb Opening Screens by G2 Q.3A. Fractional percent of 1-yr, 1-hr event peak flowrate treated by the BMP(s) 1 1
Analysis for HDS Aqua-Swirl Trash Capture AS-9s BYP CW and G2 Construction ARSFX devices City of Seal Beach
A-23
*Note: Curb screen filtration is in addition to HDS unit.

Criteria Value Unit Criteria Value Unit
Time of Concentration of Priority Land Uses (Tc) 12 min C = (0.75 × imp) + 0.15 = (0.75 x 80%) + 0.15= 0.75 Tc Multiplier 0.219 in/hr i = equivalent BMP design intensity = 0.219 in/hr Fraction of design storm entering the BMP 100% Land imperviousness 80% Equivalent BMP design intensity 0.219 in/hr Acres= 37.3 ac Design Storm Flowrate (Q) = C x I x A = 0.75 x 0.219 x 37.3 6.13 cfs Calculate the design flowrate equivalent to design volume: W=28' of Designed Filter Flowrate Avg this project (ARS-FX) 12.1 cfs Criteria Value Unit
Fractional percent of 85th percentile, 24-hr design event that is treated by the BMP =12.1 /6.13 =
(max available points = 1.5)

2.0 C = (0.75 × imp) + 0.15 = (0.75 x 80%) + 0.15= 0.75 Max Available Points Acres 37.3 ac
Q = (0.75)(0.219 in/hr) (37.3 ac) = 6.13 cfs
HDS design flowrate
(trash treatment capacity of pre-cast HDS unit)

15.8 cfs
Fractional percent of 85th percentile, 24-hr design event that is treated by the BMP = 15.8 / 6.13 =
(max available points = 1.5)

2.58 Max Available Points
4 BMP 2: ARS-FX Curb Opening Screens by G2

1.5 Points
City of Seal Beach

1.5 Points
Analysis for HDS Aqua-Swirl Trash Capture AS-9s BYP CW and G2 Construction ARS5th Street at Electric Avenue Stormwater Treatment FX devices Q.3B. Fractional percent of 85th percentile, 24-hr design event that is treated by the BMP Use multiplier to calculate the design storm intensity equivalent to the design storm depth:

BMP 1: HDS Aqua-Swirl Trash Capture AS-9s BYP CW
A-24
BMP Multiplier: *Note: Curb screen filtration is in addition to HDS unit.

HDS units are considered high-capacity systems.

BMP Multiplier (max available points = 1)
5 • 2/3 point for filters/biofilters
• 1 point for zero-discharge BMPs

0.50 Points
No BMP Multiplier given for curb screens
Q.3C. BMP Multiplier
BMP 1: HDS Aqua-Swirl Trash Capture AS-9s BYP CW BMP 2: ARS-FX Curb Opening Screens by G2 • 0 points if BMP is not low-impact development (LID) or treatment control • 1/3 point for high-capacity systems
City of Seal Beach Analysis for HDS Aqua-Swirl Trash Capture AS-9s BYP CW and G2 Construction ARS5th Street at Electric Avenue Stormwater Treatment FX devices A-25
NOAA Atlas 14 Volume 6, Version 2
Rainfall Data @ 5th Street / Electric Avenue, Seal Beach, CA A-26

PROJECT X
2025 Tier 1 Call for Projects Application for Funding

ATTACHMENT F

CITY COUNCIL RESOLUTION

A-27

RESOLUTION XXXX

A RESOLUTION OF THE SEAL BEACH CITY COUNCIL

AUTHORIZING AN APPLICATION FOR FUNDS FOR
THE ENVIRONMENTAL CLEANUP, TIER 1 GRANT

PROGRAM UNDER ORANGE COUNTY LOCAL
TRANSPORTATION ORDINANCE NO. 3 FOR THE 5
TH

STREET AT ELECTRIC AVENUE STORMWATER

TREATMENT PROJECT
WHEREAS, Orange County Transportation Agency (OCTA) Local Transportation Ordinance No. 3, dated July 24, 2006, as amended, and known and cited as the Renewed Measure M Transportation Ordinance and Investment Plan, makes funds available through the Environmental Cleanup Program to help protect Orange County beaches and waterways from transportation-generated pollution (urban runoff) and improve overall water quality; and,
WHEREAS, the Environmental Cleanup Program (ECP) Tier 1, 2025 Call for Projects provides grants for funding purchases and installations for catch basins consistent with Best Management Practices, such as screens, filters, inserts, and other "street-scale" low flow diversion projects; and,
WHEREAS, OCTA has established the procedures and criteria for evaluating and accepting grant proposals under the ECP Tier 1, 2025 Call for Projects; and, WHEREAS, the City of Seal Beach possesses authority to nominate water quality improvement projects that have a transportation pollution nexus to finance and construct the proposed project; and,
WHEREAS, by this resolution the City Council authorizes the nomination of the 5 th
Street at Electric Avenue Stormwater Treatment Project (Project), including all understanding and assurances contained therein, and authorizes the person identified as the official representative of the City of Seal Beach to act in connection with the nomination and to provide such additional information as may be required; and,
WHEREAS, the City of Seal Beach will maintain and operate the equipment acquired and installed; and,
WHEREAS, the City of Seal Beach will give OCTA's representatives access to and the right to examine all records, books, papers or documents related to the funded ECP Tier 1 Grant Project; and,
A-28
WHEREAS, the City of Seal Beach will cause work on the Project to be commenced within a reasonable time after receipt of notification from OCTA and that the Project will be carried to completion with reasonable diligence; and, WHEREAS, the City of Seal Beach will comply where applicable with provisions of the California Environmental Quality Act, the National Environmental Policy Act, the American with Disabilities Act, and any other federal, state, and/or local laws, rules and/or regulations; and,
WHEREAS, the City of Seal Beach must include all projects funded by Net Revenues in the seven-year Capital Improvement Program as part of the Renewed Measure M Ordinance eligibility requirement; and,
WHEREAS, the City of Seal Beach authorizes a formal amendment to the sevenyear Capital Improvement Program to add projects approved for funding upon approval from the Orange County Transportation Authority Board of Directors; and, WHEREAS, the City of Seal Beach will provide a minimum of 20% in matching funds for the 5
th Street at Electric Avenue Stormwater Treatment Project as required by the Orange County Comprehensive Transportation Funding Program Guidelines.

NOW, THEREFORE, THE SEAL BEACH CITY COUNCIL DOES HEREBY RESOLVE:

Section 1. All of the foregoing recitals are hereby incorporated herein by this reference.

Section 2. The City Council hereby authorizes the Interim City Manager as the official representative of the City of Seal Beach to apply for and accept grant funds under the Orange County Transportation Authority (OCTA) Environmental Cleanup Program (ECP) Tier 1, 2025 Call for Projects for the 5
th Street at Electric Avenue Stormwater
Treatment Project.

Section 2. The City Council hereby agrees to fund its share of the project costs and any additional costs over the identified programmed amount.

Section 3. The City Council hereby authorizes the Interim City Manager, or her designee, as agent to conduct all negotiations, and to execute and submit all documents on behalf of the City of Seal Beach, including, but not limited to applications, forms, agreements, and payment requests, which may be necessary to submit and secure the ECP Tier 1, 2025 grant, the City’s obligations related thereto, and all amendments thereto for the Project.

A-29
PASSED, APPROVED AND ADOPTED by the Seal Beach City Council at a regular meeting held on the 27
th day of May 2025 by the following vote:

AYES: Council Members
NOES: Council Members
ABSENT: Council Members
ABSTAIN: Council Members

Lisa Landau, Mayor
ATTEST:

Gloria D. Harper, City Clerk
STATE OF CALIFORNIA }
COUNTY OF ORANGE }
CITY OF SEAL BEACH }
I, Gloria D. Harper, City Clerk of the City of Seal Beach, do hereby certify that the foregoing resolution is the original copy of Resolution XXXX on file in the office of the City Clerk, passed, approved, and adopted by the City Council at a regular meeting held on the 27
th day of May 2025.

Gloria D. Harper, City Clerk
A-30

PROJECT X
2025 Tier 1 Call for Projects Application for Funding

ATTACHMENT G

PROJECT DRAINAGE AREAS,

PRIORITY LAND USE, BMP

LOCATIONS
A-31
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12.17 18.01

14.10 1.07

13.30 k
C00P02
West End
Pump Station

PACIFIC COAST HWY
San Gabriel River

OCEAN AV

SEAL WY

PACIFIC COAST HWY

BOLSA AV

CENTRAL AV
5TH ST
6TH ST
7TH ST
4TH ST
8TH ST

CRESTVIEW AV
7TH ST

BALBOA DR
11TH ST
16TH ST
2ND ST
15TH ST
3RD ST

MAIN ST
1ST ST

MARVISTA AV

TAPER DR

DRIFTWOOD AV
10TH ST

GALLEON WY

MARLIN AV

SEA BREEZE DR

CLIPPER WY

SAND PIPER DR

ISLAND VIEW DR

RIVIERA DR

SURF PL

SOUTH SHORE DR

BEACH COMBER DR

SCHOONER WY

CARMEL AV

ELECTRIC AV

LAGUNA PL

JADE COVE WY

BERYL COVE WY

AGUA PL

LANDING AV

CENTRAL WY

CENTRAL WY
ALLEY

MARLIN AV
ALLEY
5TH ST
ALLEY
ALLEY
ALLEY

ELECTRIC AV
ALLEY
ALLEY

MARVISTA AV

LANDING AV
ALLEY

SEAL BEACH BLVD
ALLEY
13TH ST
11TH ST
14TH ST

ELECTRIC AV

CENTRAL WY

SEAL WY

PACIFIC COAST HWY

CATALINA AV

BOLSA AV

CENTRAL AV

MARINA DR
5TH ST
6TH ST
7TH ST
4TH ST

BALBOA DR

COASTLINE DR
1ST ST

MARVISTA AV
12TH ST

GALLEON WY

FATHOM AV

CORSAIR WY

CLIPPER WY

AVALON DR

ELECTRIC AV

DORY WY

OPAL COVE WY

CARAVEL WY

CRYSTAL COVE WY

LANDING AV

MARBLE COVE WY

EMERALD COVE WY

CREST DR

SILVER SHOALS AV

CRYSTAL PL

EMERALD PL

EBB TIDE PL

UNKNOWN
10TH ST
8TH ST
ALLEY

ELECTRIC AV

CENTRAL AV

MAIN ST
11TH ST
7TH ST
ALLEY
ALLEY

4.14 3.48

3.49 3.47

7.08 7.07

7.06 7.05

7.04 7.03

7.02 7.01

3.46 3.45

3.44 6.06

6.08 6.07

6.05 6.04

6.03 6.02

6.01 3.43

5.10 5.09

5.08 5.07

5.06 5.05

5.04 4.19

4.18 4.17

4.16 4.15

4.14 4.13 4.12 4.11 4.10

4.09 4.07

4.06 3.42

3.41 3.40

4.05 4.04 4.03 4.02

4.01 3.39

3.38 3.37

3.36 3.35

3.34 3.33

3.32 3.31

3.30 3.29

3.28 3.27

3.22 3.26

3.25 3.24

3.23 3.21

3.20 3.19

3.18 3.17

3.16 3.15

9.23 9.22

9.21 9.12

9.11 9.09

9.08 9.07

9.06 9.05

8.47 8.46

8.45 8.44

8.43 8.42

8.41 8.40

8.35 8.39

8.38 8.37

8.36 8.34

8.33 8.32

8.17 8.29

8.31 8.30

8.28 8.25

8.24 8.23

8.22 8.21

8.19 8.20

8.18 8.27

8.15 8.16

8.14 8.26

8.13 8.12

8.11 8.10

8.09 8.08 8.07

8.06 8.05

8.04 8.03

8.02 8.01

3.12 3.13

3.11 2.06

2.05 2.04

2.03 2.02

2.01 1.06

15.27 15.28

15.19 15.18

14.07 14.08

15.42 15.41

15.40 15.39

15.38 15.37

15.36 15.35

15.34 15.33

15.32 15.31

15.30 15.43

15.17 15.16

15.15 12.18

15.14 15.13

15.12 15.11

15.10 15.09

15.08 15.07

15.06 15.05

15.04 15.03

15.02 15.01

15.29 15.26

15.25 15.24

15.23 15.22

15.20 14.12 14.13

14.17 14.11

14.09 14.16 14.15

14.06 14.03

14.05 14.04

14.02 14.01

16.04 16.03

16.02 16.01

17.03 17.02

17.01 19.11

19.10 19.09

19.08 19.07

19.06 19.05

18.06 18.05 18.04

18.03 18.02

19.04 19.03

19.02 19.01

10.08 10.07

10.03 10.02

10.01 13.40

13.64 13.31

13.36 13.65

13.63 13.35

13.34 13.33

13.32 13.29

13.28 13.62

13.27 13.26

13.25 13.24

13.60 13.61

13.23 13.22

13.21 13.20

13.19 13.18 13.17

13.16 13.15

13.50 13.14

13.13 13.12

13.11 13.10

13.09 13.08

13.07 13.06

13.05 13.04

13.03 13.02

13.01 12.15

12.16 12.53

12.52 12.51

12.14 12.13

13.82 13.81

13.80 13.79

13.78 13.77

13.76 13.75

13.74 13.73

13.72 13.71

32.25 32.21

32.17 32.16
0 100 200 400 600
Feet
1" = 200'
±
Node Area (acres) Q25 (cfs) Q10 (cfs)

13.82 15.74 29.9 24.4

13.50 (N) 15.74 29.9 24.4

13.07 10.37 19.8 16.0

13.14 (S) 10.37 19.8 16.0

13.14 (N) 9.4 17.2 13.9
CONF 13.14 19.77 37.0 29.8

13.50 (S) 19.77 37.0 29.8
CONF 13.50 35.51 65.2 52.6

13.40 (N) 35.51 65.2 52.6

13.16 (E) 3.58 10.3 8.6

13.17 8.47 24.0 19.9

13.18 (N) 8.47 24.0 19.9

13.25 4.65 10.5 8.6

13.30 8.28 17.9 14.6

13.18 (E) 11.75 24.3 19.8
CONF 13.18 20.22 43.2 35.5

13.31 (E) 24.49 49.4 40.4

13.23 2.92 6.3 5.1

13.63 (E) 2.92 6.3 5.1

13.63 (W) 9.01 22.3 18.4
CONF 13.63 11.93 27.8 22.8

13.64 21.9 49.3 22.8

13.65 30.55 65.4 53.5

13.31 (S) 40.05 85.7 70.1
CONF 13.31 64.54 127.9 104.3

13.40 (S) 66.36 127.9 104.3
CONF 13.40 101.87 188.8 153.6
Hydrology Study for West End Pump
Station Drainage Area
Node Area (acres) Q25 (cfs) Q10 (cfs)

12.17 (S) 107.1 188.8 153.6

12.13 7.16 20.0 14.7

12.14 8.57 20.9 17.1

12.15 15.56 36.0 29.4

12.16 16.24 37.0 30.3

12.17 (N) 16.24 37.0 30.3
CONF 12.17 123.32 222.9 181.5

12.18 (E) 124.5 222.9 181.4

14.13 7.97 13.2 10.6

14.17 (E) 9.95 16.4 13.2

12.18 (W) 9.95 16.4 13.2
CONF 12.18 134.49 238.0 193.5

15.30 (S) 134.49 238.0 193.5

15.29 5.8 13.6 11.3

15.30 (W) 6.08 13.8 11.4

15.09 4.03 6.1 4.9

15.05 6.28 9.2 7.4

15.43(N) 21.78 32.2 26.0

15.43 (S) 1.51 3.3 2.7
CONF 15.43 23.29 34.4 27.8

15.30 (E) 23.29 34.4 27.8
CONF 15.30 163.86 277.6 225.8

15.34 (E) 163.86 277.6 225.8

15.34 (W) 2.89 6.8 5.6
CONF 15.34 166.75 283.2 230.3

15.38 (E) 166.75 283.2 230.3

15.38 (W) 3.36 8.3 6.8
CONF 15.38 170.1 289.6 235.6

15.42 (E) 170.1 289.6 235.6

15.42 (W) 3.12 7.2 5.9
CONF 15.42 173.22 295.6 240.4
Node Area (acres) Q25 (cfs) Q10 (cfs)

18.05 4.93 11.3 9.2

18.06 7.61 16.7 13.6

16.04 (E) 11.18 22.5 18.3
Node Area (acres) Q25 (cfs) Q10 (cfs)

19.07 6.4 13.5 11.1

19.08 6.86 14.1 11.6

19.09 11.68 23.5 19.3

19.10 12 23.5 19.3

19.11 17.37 33.5 27.5

16.04 (SE) 23.65 44.5 36.5
Node Area (acres) Q25 (cfs) Q10 (cfs)

16.04 (SE) 23.65 44.5 36.5

16.04 (NE) 5.96 17.0 14.1

16.04 (E) 11.18 22.5 18.3

16.04 (SW) 5.07 13.9 11.5
CONF 16.04 45.86 87.2 71.5
Hydrology Study for West End Pump
Station Drainage Area
Hydrology Study for San Gabriel River
Drainage Area
Hydrology Study for San Gabriel River
Drainage Area
Hydrology Study for San Gabriel River
Drainage Area
PROJECT NO: 0800810.00
DATE: April 2024

MARINA DRIVE DRAINAGE SYSTEMS

FOCUSED STUDY
San Gabriel River Tributary Area
Exhibit 1
Legend

1.01 Concentration Point
Sub-Area Flow Direction
County Storm Drain
Existing City Storm Drain
Proposed City Storm Drain
Treatment Unit Drainage Sub-Area
Major Drainage Boundary
City Boundary
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GALLEON WAY

BMP LOCATION
TOTAL TREATMENT UNIT DRAINAGE SUB-AREA = 16.5 AC
LAND USAGE: 80% IMPERVIOUS
Figure 1 - West End Pump Station Tributary Area
TOTAL TREATMENT UNIT DRAINAGE SUB-AREA = 37.3 AC (FUTURE) LAND USAGE: 80% IMPERVIOUS
(Current Sub-Area = 1.8 AC)
5th STREET
BMP LOCATION (by Others) (By Others) A-32
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12.17 18.01

14.10 13.30
k
C00P02
West End
Pump Station

PACIFIC COAST HWY
San Gabriel River

OCEAN AV

SEAL WY

PACIFIC COAST HWY

BOLSA AV

CENTRAL AV
5TH ST
6TH ST
7TH ST
4TH ST
8TH ST

CRESTVIEW AV

BALBOA DR
2ND ST
3RD ST

MAIN ST
1ST ST

MARVISTA AV

TAPER DR

DRIFTWOOD AV
10TH ST

GALLEON WY

MARLIN AV

CLIPPER WY

SAND PIPER DR

RIVIERA DR

SURF PL

SOUTH SHORE DR

BEACH COMBER DR

SCHOONER WY

CARMEL AV

ELECTRIC AV

LAGUNA PL

JADE COVE WY

BERYL COVE WY

AGUA PL

LANDING AV

CENTRAL WY

CENTRAL WY
ALLEY

MARLIN AV
ALLEY
5TH ST
ALLEY
ALLEY
ALLEY

ELECTRIC AV
ALLEY
ALLEY

MARVISTA AV

LANDING AV
ALLEY
ALLEY
13TH ST
11TH ST
14TH ST

ELECTRIC AV

CENTRAL WY

SEAL WY

PACIFIC COAST HWY

BOLSA AV

CENTRAL AV

MARINA DR
5TH ST
6TH ST
7TH ST
4TH ST

BALBOA DR

COASTLINE DR
1ST ST

MARVISTA AV
12TH ST

GALLEON WY

FATHOM AV

CORSAIR WY

CLIPPER WY

AVALON DR

ELECTRIC AV

DORY WY

OPAL COVE WY

CARAVEL WY

CRYSTAL COVE WY

LANDING AV

MARBLE COVE WY

EMERALD COVE WY

CREST DR

SILVER SHOALS AV

CRYSTAL PL

EMERALD PL

EBB TIDE PL

UNKNOWN
10TH ST
8TH ST
ALLEY

ELECTRIC AV

CENTRAL AV

MAIN ST
11TH ST
7TH ST
ALLEY
ALLEY

4.14 3.48

3.47 7.05

7.04 7.03

7.02 3.46

3.45 3.44

6.06 6.08

6.07 6.05

6.04 6.03

6.02 6.01

3.43 5.10

5.09 5.08

5.07 5.06

4.19 4.18

4.17 4.16

4.15 4.14

4.13 4.12 4.11 4.10

4.09 4.07

4.06 3.42

3.41 3.40

4.05 4.04 4.03 4.02

4.01 3.39

3.38 3.37

3.36 3.35

3.34 3.33

3.32 3.30

3.29 3.28

3.27 3.22 3.26

3.25 3.24

9.22 9.21

9.11 9.09

9.08 9.07

8.47 8.46

8.45 8.44

8.41 8.40

8.35 8.39

8.38 8.37

8.36 8.34

8.33 8.32

8.17 8.29

8.31 8.30

8.28 8.25

8.24 8.23

8.22 8.21

8.19 8.20

8.18 8.27

8.15 8.16

8.14 8.26

8.13 8.12

8.11 8.10

8.09 8.08 8.07

8.06 8.05

8.04 8.03

2.06 2.04

2.03 2.02

15.27 15.28

15.19 15.18

14.07 14.08

15.42 15.41

15.40 15.39

15.38 15.37

15.36 15.35

15.34 15.33

15.32 15.31

15.30 15.43

15.17 15.16

15.15 12.18

15.14 15.13

15.12 15.11

15.10 15.09

15.08 15.07

15.06 15.05

15.04 15.03

15.02 15.01

15.29 15.26

15.25 15.24

15.23 15.22

15.20 14.12 14.13

14.17 14.11

14.09 14.16 14.15

14.06 14.03

14.05 14.04

14.02 14.01

16.04 16.03

16.02 16.01

17.03 17.02

17.01 19.11

19.10 19.09

19.08 19.07

19.06 19.05

18.06 18.05 18.04

18.03 18.02

19.04 19.03

19.02 19.01

10.08 10.07

10.03 10.02

10.01 13.40

13.64 13.31

13.36 13.65

13.63 13.35

13.34 13.33

13.32 13.29

13.28 13.62

13.27 13.26

13.25 13.24

13.60 13.61

13.23 13.22

13.21 13.20

13.19 13.18 13.17

13.16 13.15

13.50 13.14

13.13 13.12

13.11 13.10

13.09 13.08

13.07 13.06

13.05 13.04

13.03 13.02

13.01 12.15

12.16 12.53

12.52 12.51

12.14 12.13

13.82 13.81

13.80 13.79

13.78 13.77

13.76 13.75

13.74 13.73

13.72 13.71
Legend

1.01 Concentration Point
Sub-Area Flow Direction
County Storm Drain
Existing City Storm Drain
Proposed City Storm Drain
Drainage Sub-Area
Major Drainage Boundary
City Boundary
!(
0 100 200 400 600
Feet
1" = 200'
±
Node Area (acres) Q25 (cfs) Q10 (cfs)

13.82 15.74 29.9 24.4

13.50 (N) 15.74 29.9 24.4

13.07 10.37 19.8 16.0

13.14 (S) 10.37 19.8 16.0

13.14 (N) 9.4 17.2 13.9
CONF 13.14 19.77 37.0 29.8

13.50 (S) 19.77 37.0 29.8
CONF 13.50 35.51 65.2 52.6

13.40 (N) 35.51 65.2 52.6

13.16 (E) 3.58 10.3 8.6

13.17 8.47 24.0 19.9

13.18 (N) 8.47 24.0 19.9

13.25 4.65 10.5 8.6

13.30 8.28 17.9 14.6

13.18 (E) 11.75 24.3 19.8
CONF 13.18 20.22 43.2 35.5

13.31 (E) 24.49 49.4 40.4

13.23 2.92 6.3 5.1

13.63 (E) 2.92 6.3 5.1

13.63 (W) 9.01 22.3 18.4
CONF 13.63 11.93 27.8 22.8

13.64 21.9 49.3 22.8

13.65 30.55 65.4 53.5

13.31 (S) 40.05 85.7 70.1
CONF 13.31 64.54 127.9 104.3

13.40 (S) 66.36 127.9 104.3
CONF 13.40 101.87 188.8 153.6
Hydrology Study for West End Pump
Station Drainage Area
Node Area (acres) Q25 (cfs) Q10 (cfs)

12.17 (S) 107.1 188.8 153.6

12.13 7.16 20.0 14.7

12.14 8.57 20.9 17.1

12.15 15.56 36.0 29.4

12.16 16.24 37.0 30.3

12.17 (N) 16.24 37.0 30.3
CONF 12.17 123.32 222.9 181.5

12.18 (E) 124.5 222.9 181.4

14.13 7.97 13.2 10.6

14.17 (E) 9.95 16.4 13.2

12.18 (W) 9.95 16.4 13.2
CONF 12.18 134.49 238.0 193.5

15.30 (S) 134.49 238.0 193.5

15.29 5.8 13.6 11.3

15.30 (W) 6.08 13.8 11.4

15.09 4.03 6.1 4.9

15.05 6.28 9.2 7.4

15.43(N) 21.78 32.2 26.0

15.43 (S) 1.51 3.3 2.7
CONF 15.43 23.29 34.4 27.8

15.30 (E) 23.29 34.4 27.8
CONF 15.30 163.86 277.6 225.8

15.34 (E) 163.86 277.6 225.8

15.34 (W) 2.89 6.8 5.6
CONF 15.34 166.75 283.2 230.3

15.38 (E) 166.75 283.2 230.3

15.38 (W) 3.36 8.3 6.8
CONF 15.38 170.1 289.6 235.6

15.42 (E) 170.1 289.6 235.6

15.42 (W) 3.12 7.2 5.9
CONF 15.42 173.22 295.6 240.4
Node Area (acres) Q25 (cfs) Q10 (cfs)

18.05 4.93 11.3 9.2

18.06 7.61 16.7 13.6

16.04 (E) 11.18 22.5 18.3
Node Area (acres) Q25 (cfs) Q10 (cfs)

19.07 6.4 13.5 11.1

19.08 6.86 14.1 11.6

19.09 11.68 23.5 19.3

19.10 12 23.5 19.3

19.11 17.37 33.5 27.5

16.04 (SE) 23.65 44.5 36.5
Node Area (acres) Q25 (cfs) Q10 (cfs)

16.04 (SE) 23.65 44.5 36.5

16.04 (NE) 5.96 17.0 14.1

16.04 (E) 11.18 22.5 18.3

16.04 (SW) 5.07 13.9 11.5
CONF 16.04 45.86 87.2 71.5
Hydrology Study for West End Pump
Station Drainage Area
Hydrology Study for San Gabriel River
Drainage Area
Hydrology Study for San Gabriel River
Drainage Area
Hydrology Study for San Gabriel River
Drainage Area
PROJECT NO: 0800810.00
DATE: April 2024

MARINA DRIVE DRAINAGE SYSTEMS

FOCUSED STUDY
San Gabriel River Tributary Area
Exhibit 1
Priority Land Use (PLU) Map
Adjacent PLU in 173-Acre Tributary Area
feeding into the primary drain to WEPS
Project PLU Area in 5th Street @ HDS Unit
1) Commercial Site = 0.6 AC
2) Significant Trash Generating Area
(Pacific Coast Highway = 1.2 AC)
Total of 1.8 AC used for Cost Benefit calculation
2) Significant Trash Generating Area
(Pacific Coast Highway = 1.2 AC) 1) Commercial Site = 0.6 AC A-33
Legend

FREEWAY
ZONING
<all other values>
Type
RLD-9 (Residential Low Density-9)
RLD-15 (Residential Low Density-15)
RMD-18 (Residential Medium Density-18)
RHD-20 (Residential High Density-20)
RHD-33 (Residential High Density-33)
RHD-PD (Residential High Density-Planned Development)
RHD-46 (Residential High Density-46)
LC/RMD (Limited Commercial/Residential Medium Density)
MSSP (Main Street Specific Plan)
PO (Professional Office)
SC (Service Commercial)
GC (General Commercial)
LM (Light Manufacturing)
OE (Oil Extraction)
PS (Public and Semipublic Facilities)
RG (Recreation/Golf)
MIL (Military)
BEA (Beach)
OS-N (Open Space Natural)
OS-PR (Open Space Parks and Recreation)
SPR (Specific Plan Regulation)
Zoning Map

OCEAN AV
5TH ST

CENTRAL AV
1ST ST E

CATALINA AV

BOLSA AV

PACIFIC COAST HWY
6TH ST
1ST ST W

MARINA DR
7TH ST
4TH ST
8TH ST
17TH ST
10TH ST

BALBOA DR
11TH ST
16TH ST
15TH ST

MAIN ST

MARLIN AV
14TH ST

LANDING AV
13TH ST

MARVISTA AV

COASTLINE DR

TAPER DR
12TH ST
2ND ST

SEAL WY (WALK WAY)
3RD ST

CRESTVIEW AV

DRIFTWOOD AV

GALLEON WY

FATHOM AV

DOLPHIN AV
1ST ST

CORSAIR WY

CLIPPER WY

SEAL BEACH BLVD SAND PIPER DR

RIVIERA DR

SURF PL

SOUTH SHORE DR

BEACH COMBER DR

CENTRAL WY

SCHOONER WY

CARMEL AV

AVALON DR

LAGUNA PL

CARAVEL WY

MARINE AV

OPAL COVE WY

AGUA PL

MARBLE COVE WY

EMERALD COVE WY

NEPTUNE AV

SILVER SHOALS AV

CRYSTAL PL

ELECTRIC AV
10TH ST
8TH ST
14TH ST

ELECTRIC AV
7TH ST

ELECTRIC AV
11TH ST

MAIN ST
13TH ST
12TH ST
(OLD TOWN & BRIDGEPORT)
Map prepared June, 2010
RLD-9 (OCEAN AV)
BEA
MSSP
RHD-20
RHD-20
RHD-20
OS-PR
OS-PR
OSPR

SPR (DWP)
SC
RHD-33
RLD-15
GC
GC
GC
PS
SC
MIL
LC/RMD
RLD-9
PS
RLD-9
SPR

OS-N (SPR)
MSSP
OE
2 SC
A-34

PROJECT X
2025 Tier 1 Call for Projects Application for Funding

ATTACHMENT I

STORMWATER TREATMENT

FEASIBILITY STUDY FOR MARINA

HILLS NORTH, BRIDGEPORT, AND

OLD TOWN
MAY 2025
A-35
A-36
K:\Seal Beach\Various Storm Drain Projects (Seal Beach)\CDS Unit for West End PS\Engineering Section\REPORT\Project Report May 2025 - 5th Street Only.docx

TABLE OF CONTENTS
Section Page
1 Introduction .............................................................................................................. 1 2 Project Location ....................................................................................................... 1 3 Design Flood Control and Treatment Discharge....................................................... 5 4 Stormwater Treatment Unit ...................................................................................... 5 5 Preliminary Plan....................................................................................................... 5 6 Construction Cost Estimate for the Recommended Stormwater Treatment System..................................................................................................................... 5 Figures Page
1 West End Pump Station Tributary Area .................................................................... 2 2 West End Pump Station Existing Tributary Storm Drain System............................... 3 3 Proposed Treatment Location .................................................................................. 4 4 Aqua-Swirl Trash Capture – AS-9s BYP CW............................................................ 6 Table Page
1 Cost Estimate – 5
th Street at Electric Avenue Intersection ........................................ 7 Appendix
1 Preliminary Plans – 5
th Street at Electric Avenue
2 AquaShield Documents
A-37
Stormwater Treatment Feasibility Study City of Seal Beach Marina Hills North, Bridgeport, and Old Town Page 1
K:\Seal Beach\Various Storm Drain Projects (Seal Beach)\CDS Unit for West End PS\Engineering Section\REPORT\Project Report May 2025 - 5th Street Only.docx

CITY OF SEAL BEACH

STORMWATER TREATMENT FEASIBILITY STUDY
FOR

MARINA HILLS NORTH, BRIDGEPORT, AND OLD TOWN AREAS
1) INTRODUCTION
The purpose of this study is to identify potential future stormwater treatment locations and provide preliminary designs aimed at improving the quality of stormwater flowing into the City’s West End Pump Station (WEPS), which ultimately discharges into the San Gabriel River. While two locations have been identified for treatment units, this report focuses on the location at 5th Street, as work at Galleon Way (Location 1) is underway as indicated in Figure 1 – West End Pump Station Tributary Area Map.

The hydrologic and hydraulic information for this study is obtained from the City’s 2008 Master Plan of Drainage Update (Master Plan Study) and the 2018 Marina Drive Storm Drain Study. 2) PROJECT LOCATION
The West End Stormwater Pump Station is located at very west edge of City boundary within the Bridgeport Community, adjacent to San Gabriel River. The tributary area of WEPS is 173 acres and includes all the Bridgeport Community and portions of Old Town and Marina Hills North, as shown in Figure 1 – West End Pump Station Tributary Area Map. The runoff to the pump station is pumped into San Gabriel River with two (2) 100 cfs capacity axial flow pumps.

The existing storm drain system tributary to WEPS is shown on Figure 2 – West End Pump Station Existing Tributary Storm Drain System. The primary influent drain extends southeasterly from the pump station to Marina Drive, southeasterly along Marina Drive to Pacific Coast Highway, and northerly to Coastline Drive along Pacific Coast Highway and an easement between two single family residences. The primary influent drain has laterals at First Street (18- inch east and west), Corsair Way (18-inch and 5’ (W) x 1.25’ (H) RCB), Galleon Way (30-inch east), 5th Street (12-inch CMP), and southerly at 6th Street/Electric Avenue (18-inch RCP).

Because of the shallow depth and limited capacity of the existing storm drain system southeasterly of Galleon Way at Electric Avenue, two (2) locations, shown on Figure 3 – Proposed Stormwater Treatment Location Map, are selected for treatment units to improve the stormwater quality by removing debris and pollutants at these locations. One of the locations is on Galleon Way (Location # 1), just east of Electric Avenue, where work is already underway, as previously noted. The second location is on 5th Street (Location #2)just northeasterly of Electric Avenue. There is a catch basin at this location and a 12-inch CMP, which connects to a junction structure of U/S reach of 5’(W) x 3’ (H) RCB and the D/S reach of 58” (W) x 36” (H) CMP in Electric Avenue. The current drainage area flowing to this catch basin is approximately 1.8 acres, but the future storm drain system flowing to this location is 37.3 acres. Under future conditions, it is required to construct 720 feet of 48-inch diameter RCP storm drain in 5th Street from Electric Avenue to Coastline Drive, crossing of Pacific Coast Highway as shown on Figure 3 – Proposed Stormwater Treatment Location Map.

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12.17 18.01

14.10 1.07

13.30 k
C00P02
West End
Pump Station

PACIFIC COAST HWY
San Gabriel River

OCEAN AV

SEAL WY

PACIFIC COAST HWY

BOLSA AV

CENTRAL AV
5TH ST
6TH ST
7TH ST
4TH ST
8TH ST

CRESTVIEW AV
7TH ST

BALBOA DR
11TH ST
16TH ST
2ND ST
15TH ST
3RD ST

MAIN ST
1ST ST

MARVISTA AV

TAPER DR

DRIFTWOOD AV
10TH ST

GALLEON WY

MARLIN AV

SEA BREEZE DR

CLIPPER WY

SAND PIPER DR

ISLAND VIEW DR

RIVIERA DR

SURF PL

SOUTH SHORE DR

BEACH COMBER DR

SCHOONER WY

CARMEL AV

ELECTRIC AV

LAGUNA PL

JADE COVE WY

BERYL COVE WY

AGUA PL

LANDING AV

CENTRAL WY

CENTRAL WY
ALLEY

MARLIN AV
ALLEY
5TH ST
ALLEY
ALLEY
ALLEY

ELECTRIC AV
ALLEY
ALLEY

MARVISTA AV

LANDING AV
ALLEY

SEAL BEACH BLVD
ALLEY
13TH ST
11TH ST
14TH ST

ELECTRIC AV

CENTRAL WY

SEAL WY

PACIFIC COAST HWY

CATALINA AV

BOLSA AV

CENTRAL AV

MARINA DR
5TH ST
6TH ST
7TH ST
4TH ST

BALBOA DR

COASTLINE DR
1ST ST

MARVISTA AV
12TH ST

GALLEON WY

FATHOM AV

CORSAIR WY

CLIPPER WY

AVALON DR

ELECTRIC AV

DORY WY

OPAL COVE WY

CARAVEL WY

CRYSTAL COVE WY

LANDING AV

MARBLE COVE WY

EMERALD COVE WY

CREST DR

SILVER SHOALS AV

CRYSTAL PL

EMERALD PL

EBB TIDE PL

UNKNOWN
10TH ST
8TH ST
ALLEY

ELECTRIC AV

CENTRAL AV

MAIN ST
11TH ST
7TH ST
ALLEY
ALLEY

4.14 3.48

3.49 3.47

7.08 7.07

7.06 7.05

7.04 7.03

7.02 7.01

3.46 3.45

3.44 6.06

6.08 6.07

6.05 6.04

6.03 6.02

6.01 3.43

5.10 5.09

5.08 5.07

5.06 5.05

5.04 4.19

4.18 4.17

4.16 4.15

4.14 4.13 4.12 4.11 4.10

4.09 4.07

4.06 3.42

3.41 3.40

4.05 4.04 4.03 4.02

4.01 3.39

3.38 3.37

3.36 3.35

3.34 3.33

3.32 3.31

3.30 3.29

3.28 3.27

3.22 3.26

3.25 3.24

3.23 3.21

3.20 3.19

3.18 3.17

3.16 3.15

9.23 9.22

9.21 9.12

9.11 9.09

9.08 9.07

9.06 9.05

8.47 8.46

8.45 8.44

8.43 8.42

8.41 8.40

8.35 8.39

8.38 8.37

8.36 8.34

8.33 8.32

8.17 8.29

8.31 8.30

8.28 8.25

8.24 8.23

8.22 8.21

8.19 8.20

8.18 8.27

8.15 8.16

8.14 8.26

8.13 8.12

8.11 8.10

8.09 8.08 8.07

8.06 8.05

8.04 8.03

8.02 8.01

3.12 3.13

3.11 2.06

2.05 2.04

2.03 2.02

2.01 1.06

15.27 15.28

15.19 15.18

14.07 14.08

15.42 15.41

15.40 15.39

15.38 15.37

15.36 15.35

15.34 15.33

15.32 15.31

15.30 15.43

15.17 15.16

15.15 12.18

15.14 15.13

15.12 15.11

15.10 15.09

15.08 15.07

15.06 15.05

15.04 15.03

15.02 15.01

15.29 15.26

15.25 15.24

15.23 15.22

15.20 14.12 14.13

14.17 14.11

14.09 14.16 14.15

14.06 14.03

14.05 14.04

14.02 14.01

16.04 16.03

16.02 16.01

17.03 17.02

17.01 19.11

19.10 19.09

19.08 19.07

19.06 19.05

18.06 18.05 18.04

18.03 18.02

19.04 19.03

19.02 19.01

10.08 10.07

10.03 10.02

10.01 13.40

13.64 13.31

13.36 13.65

13.63 13.35

13.34 13.33

13.32 13.29

13.28 13.62

13.27 13.26

13.25 13.24

13.60 13.61

13.23 13.22

13.21 13.20

13.19 13.18 13.17

13.16 13.15

13.50 13.14

13.13 13.12

13.11 13.10

13.09 13.08

13.07 13.06

13.05 13.04

13.03 13.02

13.01 12.15

12.16 12.53

12.52 12.51

12.14 12.13

13.82 13.81

13.80 13.79

13.78 13.77

13.76 13.75

13.74 13.73

13.72 13.71

32.25 32.21

32.17 32.16
0 100 200 400 600
Feet
1" = 200'
±
Node Area (acres) Q25 (cfs) Q10 (cfs)

13.82 15.74 29.9 24.4

13.50 (N) 15.74 29.9 24.4

13.07 10.37 19.8 16.0

13.14 (S) 10.37 19.8 16.0

13.14 (N) 9.4 17.2 13.9
CONF 13.14 19.77 37.0 29.8

13.50 (S) 19.77 37.0 29.8
CONF 13.50 35.51 65.2 52.6

13.40 (N) 35.51 65.2 52.6

13.16 (E) 3.58 10.3 8.6

13.17 8.47 24.0 19.9

13.18 (N) 8.47 24.0 19.9

13.25 4.65 10.5 8.6

13.30 8.28 17.9 14.6

13.18 (E) 11.75 24.3 19.8
CONF 13.18 20.22 43.2 35.5

13.31 (E) 24.49 49.4 40.4

13.23 2.92 6.3 5.1

13.63 (E) 2.92 6.3 5.1

13.63 (W) 9.01 22.3 18.4
CONF 13.63 11.93 27.8 22.8

13.64 21.9 49.3 22.8

13.65 30.55 65.4 53.5

13.31 (S) 40.05 85.7 70.1
CONF 13.31 64.54 127.9 104.3

13.40 (S) 66.36 127.9 104.3
CONF 13.40 101.87 188.8 153.6
Hydrology Study for West End Pump
Station Drainage Area
Node Area (acres) Q25 (cfs) Q10 (cfs)

12.17 (S) 107.1 188.8 153.6

12.13 7.16 20.0 14.7

12.14 8.57 20.9 17.1

12.15 15.56 36.0 29.4

12.16 16.24 37.0 30.3

12.17 (N) 16.24 37.0 30.3
CONF 12.17 123.32 222.9 181.5

12.18 (E) 124.5 222.9 181.4

14.13 7.97 13.2 10.6

14.17 (E) 9.95 16.4 13.2

12.18 (W) 9.95 16.4 13.2
CONF 12.18 134.49 238.0 193.5

15.30 (S) 134.49 238.0 193.5

15.29 5.8 13.6 11.3

15.30 (W) 6.08 13.8 11.4

15.09 4.03 6.1 4.9

15.05 6.28 9.2 7.4

15.43(N) 21.78 32.2 26.0

15.43 (S) 1.51 3.3 2.7
CONF 15.43 23.29 34.4 27.8

15.30 (E) 23.29 34.4 27.8
CONF 15.30 163.86 277.6 225.8

15.34 (E) 163.86 277.6 225.8

15.34 (W) 2.89 6.8 5.6
CONF 15.34 166.75 283.2 230.3

15.38 (E) 166.75 283.2 230.3

15.38 (W) 3.36 8.3 6.8
CONF 15.38 170.1 289.6 235.6

15.42 (E) 170.1 289.6 235.6

15.42 (W) 3.12 7.2 5.9
CONF 15.42 173.22 295.6 240.4
Node Area (acres) Q25 (cfs) Q10 (cfs)

18.05 4.93 11.3 9.2

18.06 7.61 16.7 13.6

16.04 (E) 11.18 22.5 18.3
Node Area (acres) Q25 (cfs) Q10 (cfs)

19.07 6.4 13.5 11.1

19.08 6.86 14.1 11.6

19.09 11.68 23.5 19.3

19.10 12 23.5 19.3

19.11 17.37 33.5 27.5

16.04 (SE) 23.65 44.5 36.5
Node Area (acres) Q25 (cfs) Q10 (cfs)

16.04 (SE) 23.65 44.5 36.5

16.04 (NE) 5.96 17.0 14.1

16.04 (E) 11.18 22.5 18.3

16.04 (SW) 5.07 13.9 11.5
CONF 16.04 45.86 87.2 71.5
Hydrology Study for West End Pump
Station Drainage Area
Hydrology Study for San Gabriel River
Drainage Area
Hydrology Study for San Gabriel River
Drainage Area
Hydrology Study for San Gabriel River
Drainage Area
PROJECT NO: 0800810.00
DATE: April 2024

MARINA DRIVE DRAINAGE SYSTEMS

FOCUSED STUDY
San Gabriel River Tributary Area
Exhibit 1
Legend

1.01 Concentration Point
Sub-Area Flow Direction
County Storm Drain
Existing City Storm Drain
Proposed City Storm Drain
Treatment Unit Drainage Sub-Area
Major Drainage Boundary
City Boundary
!(

GALLEON WAY

BMP LOCATION
TOTAL TREATMENT UNIT DRAINAGE SUB-AREA = 16.5 AC
LAND USAGE: 80% IMPERVIOUS
Figure 1 - West End Pump Station Tributary Area
TOTAL TREATMENT UNIT DRAINAGE SUB-AREA = 37.3 AC (FUTURE) LAND USAGE: 80% IMPERVIOUS
(Current Sub-Area = 1.8 AC)
5th STREET
BMP LOCATION (by Others) (By Others) A-39
A-40
Location #2 Unit
Ext. SD
(Typ)
Future SD
(Typ)
Location #1 Unit
Figure 3 - Proposed Stormwater Treatment Location
(5th Street BMP)
(Galleon Way BMP
per City other project) A-41
Stormwater Treatment Feasibility Study City of Seal Beach Marina Hills North, Bridgeport, and Old Town Page 5
K:\Seal Beach\Various Storm Drain Projects (Seal Beach)\CDS Unit for West End PS\Engineering Section\REPORT\Project Report May 2025 - 5th Street Only.docx 3) DESIGN FLOOD CONTROL AND TREATMENT DISCHARGES
Per City Flood Protection Design Criteria, the drainage improvements in areas draining to a pump station (sump conditions) must be designed to convey the peak runoff resulting from a high confidence 25-year storm. The flood control and water quality design flow for the suggested location are as follows:

The location is 5th Street at Electric Avenue with a future tributary area of 37.3 acres (21.6% of the total WEPS tributary area). The 2008 Master Plan of Drainage Update determined the peak design flow at 66 cfs (Hydrology Node 13.40).

The time of concentration is 12 minutes, and its impervious percentage is 80%.

The runoff coefficient; C = (0.75 * Percent Impervious +0.15) = 0.75.

The Average Annual Capacity Unit Efficiency, E = 80%.

From OC North TGD Figure III.4. Capture Efficiency Nomograph, the Design Intensity; I = 0.219.

The stormwater treatment discharge; Q = C * I * A = 0.75 * 0.219 * 37.3 = 6.13 cfs 4) STORMWATER TREATMENT UNIT
Following evaluation of several different stormwater treatment products, AquaShield Inc., Stormwater Treatment Solutions’ product “AQUA – SWIRL” is recommended for the two locations, because it can be incorporated into the storm drain system in-line and with lower head losses.

The Aqua-Swirl Stormwater Treatment System is a flow-through water quality device that removes coarse sediment, debris and free-floating oil by utilizing hydrodynamic separation technology within a single swirl chamber.

The recommended stormwater treatment unit at 5th Street is an Aqua-Swirl AS-9s BYP CW model with an inside diameter of 114-inch shall be installed. The standard detail of this unit is included in Figure 4 – AQUA-Swirl Trash Capture AS-9s BYP CW Standard Detail. The water quality treatment discharge capacity at this location is 15.8 cfs with a trash storage capacity of 16.2 cubic-ft.
5) PRELIMINARY PLANS
The preliminary plan and profile of the treatment system recommended for Location #2 at 5th Street is provided at the end of this report.
6) CONSTRUCTION COST ESTIMATES FOR THE RECOMMENDED STORMWATER

TREATMENT SYSTEMS
Table 1 – Engineer’s Opinion of Construction Cost, Stormwater Treatment Feasibility Study illustrates the estimated construction cost for the stormwater treatment system at 5th Street at Electric Avenue.

A-42
Projected View
SCALE 1:80
Plan View
SCALE 1:40
Elevation View
2733 Kanasita Drive, Suite 111, Chattanooga, TN 37343 SCALE 1:40 Phone (888) 344-9044 Fax (423) 826-2112
www.aquashieldinc.com
Structure #:

Drawn By:

Scale:

Date:

OFlores
9/15/2022
Rvwed Rvw. Date
U.S. Patent No. 6524473 and other Patent Pending
Aqua-Swirl® Trash Capture
Standard Detial
As Shown
el. Varies
Inlet/Outlet Invert
el. Varies
el. Varies
Grade (Rim) el. Varies
Out el t In el t
AS-9s BYP CW
AS-9s STD
Aqua-Swirl® Polymer Coated Steel (PCS)
Stormwater Treatment System
12 in
[305 mm]
Manhole Frame & Cover Detail
For Non-Traffic Areas Only
NTS
48 in
[1219 mm] Min.

Gravel Backfill
Concrete
Wrap Compressible Expansion
Joint Material to a minimum
1/2-inch [13 mm] thickness around
top of riser to allow transfer of
inadvertent loading from
manhole cover to concrete slab.

Riser
Soil
Cover
Frame
1/2 in
[13 mm]
1/2 in
[13 mm]
Place small amount of
concrete [3,000 psi [20
MPa] (min)] to support
and level manhole frame.

DO NOT allow manhole
frame to rest upon riser.

Backfill (90%
Proctor Density)
8 in
[203 mm]
4 1/2 in
[114 mm]
Unless other traffic barriers are present,
bollards shall be placed around access riser(s)
in non-traffic areas to prevent inadvertent
loading by maintenance vehicles.

Manhole Frame & Cover Detail
For Traffic Loading Areas
NTS
Cover
Frame
48 in
[1219 mm] Min.

Backfill (90%
Proctor Density)
3,000 psi [20 MPa]
(min) Concrete
#4 [13 mm] Rebar
@ 6 in [152 mm]
Each Way
30 in [762 mm]
Riser
1/2 in
[13 mm]
4 1/2 in
[114 mm]
14 in
[356 mm]
1/2 in [13 mm] Thick
Expansion Joint
Material
If traffic loading (HS-25) is required or anticipated, a 4-foot [1.22 m] diameter, 14-inch [356 mm] thick reinforced concrete pad must be placed over the Stormwater Treatment System Riser to support and level the manhole frame, as shown. The top of riser pipe must be wrapped with compressible expansion joint material to a minimum 1/2-inch [13 mm] thickness to allow transfer of wheel loads from manhole cover to concrete slab. Manhole cover shall bear on concrete slab and not on riser pipe. The concrete slab shall have a minimum strength of 3,000 psi [20 MPa] and be reinforced with #4 [13 mm] reinforcing steel as shown. Minimum cover over reinforcing steel shall be 1-inch [25 mm]. Top of manhole cover and concrete slab shall be level with finish grade.

Please see accompanied Aqua-Swirl® specification notes. See Site Plan for actual system orientation. Approximate dry (pick) weight:
5900 lbs [2700 kg].

Backfill shall extend at least 18
inches [457 mm] outward from
Swirl Concentrator and for the
full height of the Swirl
Concentrator (including riser)
extending laterally to
undisturbed soils. (See MH
Detail Below)
Pipe coupling
by Contractor.
12 in [305 mm]
long Stub-out
by Manufacturer.

Octagonal Base Plate
Pipe coupling
by Contractor.
12 in [305 mm]
long Stub-out
by Manufacturer.

Varies Varies
Internal Baffles
Riser
n114 in
[n2900 mm]
126 in
[3200 mm]
126 in
[3200 mm]
68 in
[1727 mm]
116 in
[2946 mm]
5 in
[127 mm]
MH Frame
n30 in
[n762 mm]
n36 in
[n914 mm]
n36 in
[n914 mm]
Rim elevations to
match finish grade.
n114 in
[n2896 mm]
1 1
As an alternative, 42 in [1067 mm] diameter, HS-20/25
rated precast concrete rings may be substituted. 14 in
[356 mm] thickness must be maintained.

AS-9s BYP inlet/outlet pipe size ranges from 21 in [533 mm] to 54 in [1372 mm].

AS-9s chamber height may vary from 101 in [2565 mm]
to 134 in [3404 mm], depending on inlet/outlet pipe size.

Orientation may vary from a minimum of 90° to a
maximum of 180°.

Manhole Frame and
Cover by Manufacturer.
(See Details)
180°
2 3
4 2
3 4
2 Band Coupler
by Manufacturer.
(as needed) Lifting Lugs
Backfill
Bedding
Undisturbed soil
18 in
[457 mm]
6 in
[152 mm]
Trash Screen
Lifting Lugs
Figure 4
AQUA-Swirl Trash Capture
AS-9s BYP CW
Standard Detail A-43
Item
No. Description Quantity Unit Unit Price Sub-Total Amount A1
Mobilization and demobilization; including but not limited to:
preparation of a Stormwater Pollution Control Program
(SWPCP) and placement and maintenance of BMPs during
the construction period, complete and in place.
1 LS $35,000 $35,000
A2
Provide construction traffic control; including but not limited to: preparing a traffic control plan, provide and maintain traffic control, complete and in place throughout the Project. 1 LS $18,000 $18,000
A3 Provide shoring design, phased as necessary, sealed and stamped by a California registered structural engineer. 1 LS $10,000 $10,000 A4
Implement dewatering 24-hour per day and 7 days per
week, regardless of the various groundwater level
conditions.
1 LS $165,000 $165,000
A5
Provide and implement trench and excavation safety
measures throughout the project, including sheeting,
shoring and bracing.
1 LS $40,000 $40,000
A6
Clear and grub the construction site in phases to match the project schedule, demolish existing paving, landscaping, trees; haul away and legally dispose removed materials. 1 LS $10,000 $10,000
A7
Permitting, removal, transport, treatment and/or disposal of contaminated soil per actual quantity only if required. For bidding purpose, 50-ton of quantity is specified. The City will pay this Item per actual quantity.
50 TON $220 $11,000
A8
Additional over-excavation and placement of 1-1/2” and ¾” crushed rock bedding material wrapped in filter fabric per actual quantity only if required. For bidding purpose, 15- ton of quantity is specified. The City will pay this Item per actual approved quantity.
15 TON $220 $3,300
A9
Remove and dispose of non-friable asbestos materials –
For bidding purpose, this cost shall be based on 100 feet of Asbestos Cement Pipe. The final payment for this Item will be paid based on the actual approved length of the
asbestos cement pipe removed and disposed of regardless the size and depth of the pipe.
100 LF $150 $15,000
Subtotal = $307,300
B1 Remove and dispose of conflicting existing storm drain pipe line, catch basin and others. 73 LF $250 $18,250
B2
Construct 48-inch RGRCP ("D" load= 4000), including
excavation, bedding, backfill, compaction, and resurfacing, sidewalk, landscaping in place per City approval.
57 LF $1,500 $85,500
B3
Construct Curb Opening Catch Basin (W=28' & B=7') at 5th Street with Local Depression per SPPWC STD., and
equipped with Automatic Retractable Screens, United
Storm Water, INC. WING-GATE ARS (304 Stainless Steel).
1 EA $40,000 $40,000
B4
Demolition and Removal of Existing RCB and Re-Construct Manhole & Junction Structure (8' X 8' x 6'(H) RCB) for
connecting with the existing storm drain.
1 EA $80,000 $80,000
B5 Construct Aqua-Swirl Trash Capture Unit No. "AS-9s BYP CW" model per AquaShield Inc. Manufacture STD. 1 EA $135,000 $135,000 B6
Remove and dispose of existing 8-inch asbestos cement
water main legally and relocate / replace with 8-inch
diameter PVC C-900 DR-14 pipe, including testing and
reconnections.
1 LS $22,000 $22,000
B7
Abandon existing storm drain in place. Plug ends with 560- C-3250 concrete and fill with the existing pipe wit two sack cement slurry.
1 LS $2,500 $2,500
Subtotal = $383,250
ITEM A: BASE BID ITEMS (ITEMS A1 THRIUGH A9) = $307,300 ITEM B: STORM DRAIN BID ITEMS (ITEMS B1 THROUGH B7) = $383,250 DESIGN / PM / CM COST (15%) = $103,583
CONTINGENCIES (10%) = $69,055
TABLE 1

ITEM A - BASE BID ITEMS

ITEM B - STORM DRAIN BID ITEMS
5TH STREET ADJACENT TO ELECTRIC AVENUE

ENGINEER'S OPINION OF CONSTRUCTION COST

STORMWATER TREATMENT FEASIBILITY STUDY
5TH STREET AT ELECTRIC AVENUE INTERSECTION

FOR MARINA HILLS NORTH, BRIDGEPORT, AND OLD TOWN AREA

CITY OF SEAL BEACH
May 2025

GRAND TOTAL OF PROJECT
Grand Total = $863,188
A-44
Stormwater Treatment Feasibility Study City of Seal Beach Marina Hills North, Bridgeport, and Old Town Page 8
K:\Seal Beach\Various Storm Drain Projects (Seal Beach)\CDS Unit for West End PS\Engineering Section\REPORT\Project Report May 2025 - 5th Street Only.docx Appendix
1)5th Street Stormwater Treatment Unit
2)AquaShield Documents
A-45

STORMWATER TREATMENT FEASIBILITY STUDY

FOR MARINA HILLS NORTH, BRIDGEPORT,

AND OLD TOWN AREA

STORMWATER TREATMENT FEASIBILITY STUDY
IN 5TH STREET ADJACENT ELECTRIC AVENUE
2 15
10+00 11+00
10 5
0 -5
-10
15 10
5 0
-5
-10

ELECTRIC
AVENUE 5TH STREET
A-46
A-47
A-48
Swirl
Chamber
Diameter
Water Quality Treatment Flow2
(ft.) (cfs)
Offline Inline/BYP1 8 15
AS-3s 3.50 10 21 2.1
AS-4s 4.50 12 27 3.5
AS-5s 5.50 12 30 5.3
AS-6s 6.50 15 36 7.4
AS-7s 7.50 18 42 9.8
AS-8s 8.50 18 48 12.6
AS-9s 9.50 21 15.8
AS-10s 10.5 24 19.3
AS-11s 11.5 24 23.1
AS-12s 12.5 24 27.3
AS-13s 13.0 27 29.6
AS-XX 12.0 -- -- >29.6**
* See AquaShield representative for more information on pipe sizes available. ** Higher water quality treatment flow rates can be designed with multiple swirls. 1)
2)
CALIFORNIA CERTIFIED 100% FULL TRASH CAPTURE
Aqua-Swirl® Sizing Chart
Aqua-Swirl®
Model
Maximum Stub-Out Pipe
Nominal Diameter
(in.)
The Aqua-Swirl ® Internal Bypass (BYP) provides full treatment of the "first flush," specifically the 1-year, 1-hour storm event while the peak storm is diverted and bypassed through the main conveyance pipe. For inline internal bypass configurations, the maximum pipe diameter is listed in the BYP column and the minimum pipe diameter is listed in the adjacent offline column.

In accordance with the Trash Amendments, all trash treatment control devices installed after December 2, 2015 shall meet the Full Capture System definition and be certified by the State Water Resources Control Board (State Water Board) Executive Director, or designee, prior to installation. The Aqua-Swirl device meets the Full Capture System definition and is certified for installation by the State Water Board Executive Director designee. For more info:
https://www.waterboards.ca.gov/water_issues/programs/stormwater/docs/trash_implem entation/certified_fcsdevicelist_16Feb2021.pdf
The design and orientation of the Aqua-Swirl® generally entails some degree of customization. For assistance in design and specific layouts, please refer to an AquaShield™ representative John Santos (916) 850-9879 or visit our website at www.AquaShieldinc.com. CAD details and specifications are available upon request.

AS-2s 2.50 1.1
48 48
48*
48*
48*
9580 Oak Avenue, Suite 7-203 • Folsom, CA 95630 • Phone (916) 850-9879 • www.aquashieldinc.com A-49
Stormwater Treatment System
Inspection and Maintenance Manual
AquaShieldTM, Inc.
2733 Kanasita Drive
Suite 111
Chattanooga, TN 37343
Toll free (888) 344-9044
Phone: (423) 870-8888
Fax: (423) 826-2112
Email: [email protected]
www.aquashieldinc.com
June 2022
© AquaShieldTM, Inc. 2022. All rights reserved.

A-50
Floatable debris in the Aqua-Swirl®
Aqua-Swirl® Stormwater Treatment System
The Aqua-Swirl® Stormwater Treatment System (Aqua-Swirl®) is a vortex-type hydrodynamic separator designed and supplied by AquaShieldTM, Inc. (AquaShieldTM). Aqua-Swirl® technology removes pollutants including suspended solids, trash, floatables and free-floating oil from stormwater runoff. Both treatment and storage are accomplished in the single swirl chamber without the use of multiple or hidden, blind access chambers.

Aqua-Swirl® System Maintenance
The long term performance of any stormwater treatment structure, including manufactured or land based systems, depends on a consistent maintenance plan. Inspection and maintenance functions are simple and easy for the Aqua-Swirl® allowing all inspections to be performed from the surface.

It is important that a routine inspection and maintenance program be established for each unit based on: (a) the volume or load of the contaminants of concern, (b) the frequency of releases of contaminants at the facility or location, and (c) the nature of the area being drained. © AquaShieldTM, Inc. 2022. All rights reserved.

A-51
Example of Aqua-Swirl® manhole cover
Inspection
The Aqua-Swirl® can be inspected from the surface thereby eliminating the need to enter the system to determine when cleanout should be performed. AquaShieldTM recommends in most cases that a quarterly inspection take place for the first year of operation to develop an appropriate schedule of maintenance. Based on experience of the system’s first year in operation, we recommend that the inspection schedule be revised to reflect the site-specific conditions encountered. The typical inspection schedule for subsequent years is reduced to semi-annual inspection events. Table 1 below lists the available Aqua-Swirl® models as well their inner diameters, oil/debris storage capacities and the sediment storage capacities.

Table 1. Aqua-Swirl® Storage Capacities
Aqua-Swirl®
Model
Inner
Diameter
(ft)
Oil/Debris
Storage Capacity
(gal)
Sediment Storage
Capacity
(ft3)
AS-2 2.5 37 6
AS-3 3.5 110 11
AS-4 4.5 190 19
AS-5 270 23
AS-6 390 33
AS-7 540 45
AS-8 710 58
AS-9 910 74
AS-10 1,130 91
AS-11 1,422 110
AS-12 1,698 131
AS-13 13.0 1,986 154
AS-XX Custom*
* Custom designs to meet site-specific criteria, can include multiple (twin) units for increased flow and materials storage capacity.

5.5 6.5

7.5 8.5

9.5 10.5

11.5 12.5
© AquaShieldTM, Inc. 2022. All rights reserved.

A-52
Sediment inspection using a stadia rod
Maintenance
The Aqua-Swirl® has been designed to minimize and simplify the inspection and maintenance process. The single chamber of the system can be inspected and maintained entirely from the surface thereby eliminating the need for confined space entry. There are no areas of the structure that are blocked from visual inspection or periodic cleaning. Inspection of any free-floating oil and floatable trash can be directly observed and maintained through the manhole access provided directly over the swirl chamber. If so equipped, the trash screen can be exposed once the water is removed from the unit and inspected.

Aqua-Swirl® Inspection Procedure
To inspect the Aqua-Swirl®, a hook is typically needed to remove the manhole cover.

AquaShieldTM provides a customized manhole cover with our distinctive logo to make it easy for maintenance crews to locate the system in the field. We also provide a permanent metal information plate affixed inside the access riser which provides our contact information, the Aqua-Swirl® model size, and serial number.

The only tools needed to inspect the Aqua-Swirl® system are a flashlight and a measuring device such as a stadia rod or pole. Given the easy and direct accessibility provided, floating oil and debris can be observed directly from the surface. Sediment depths can easily be determined by lowering a measuring device to the top of the sediment pile and to the surface of the water.

It should be noted that in order to avoid underestimating the volume of sediment in the chamber, the measuring device must be carefully lowered to the top of the sediment pile. Keep in mind that the finer sediment at the top of the pile may offer less resistance to the measuring device than the larger particles which typically occur deeper within the sediment pile. The Aqua-Swirl® design allows for the captured sediment to accumulate in a semi-conical fashion as illustrated below. That is, the depth to sediment as measured below the water surface may be less in the center of the swirl chamber; and likewise, may be greater at the edges of the swirl chamber. © AquaShieldTM, Inc. 2022. All rights reserved.

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Maximum recommended sediment depth prior to cleanout
is 14 inches for all Aqua-Swirl® models (not to scale)
Aqua-Swirl® Cleanout Procedure
Cleaning the Aqua-Swirl® is simple and quick. Free-floating oil and floatable trash can be observed and removed directly through the 30-inch service access riser provided. A vacuum truck is typically used to remove the accumulated sediment and debris. An advantage of the Aqua-Swirl® design is that the entire sediment storage area can be reached with a vacuum hose from the surface reaching all the sides. Since there are no multiple or limited (blind) access chambers in the Aqua-Swirl®, there are no restrictions to impede on-site maintenance tasks. If applicable, the trash screen can be reached from the surface and cleaned with a vacuum hose.

Disposal of Recovered Materials
AquaShieldTM recommends that all maintenance activities be performed in accordance with appropriate health and safety practices for the tasks and equipment being used. AquaShieldTM also recommends that all materials removed from the Aqua-Swirl® and any external bypass structures (divergent and convergent) be handled and disposed of in full accordance with any applicable local and state requirements.
14”
© AquaShieldTM, Inc. 2022. All rights reserved.

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Vacuum (vactor) truck quickly cleans the single open access swirl chamber Aqua-Swirl®
Inspection and Maintenance Work Sheets
on following pages
© AquaShieldTM, Inc. 2022. All rights reserved.

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Aqua-Swirl®
Inspection and Maintenance Work Sheets
SITE and OWNER INFORMATION
Site Name:

Site Location:

Date: Time:

Inspector Name:

Inspector Company: Phone #:

Owner Name:

Owner Address:

Owner Phone #: Emergency Phone #:

INSPECTIONS
I. Floatable Trash/Debris and Oil

1. Remove manhole lid to expose liquid surface of the Aqua-Swirl®.

2. Remove floatable trash/debris with basket or net if any present.

3. If oil is present, measure its depth. Clean liquids from system if one half (½) inch or more of oil and/or trash is present.

4. If applicable, clean trash screen surface with vacuum hose.

Note: Water in Aqua-Swirl® can appear black and similar to oil due to the dark body of the surrounding structure. Oil may appear darker than water in the system and is usually accompanied by oil stained debris (e.g. Styrofoam, etc.). The depth of oil can be measured with an oil/water interface probe, a stadia rod with water finding paste, a coliwasa, or collect a representative sample with a jar attached to a rod.

II. Sediment Accumulation

1. Lower measuring device (e.g. stadia rod) into swirl chamber through service access provided until top of sediment pile is reached.

2. Record distance to top of sediment pile from top of standing water:
inches.

3. Maximum recommended sediment depth prior to cleanout is 14 inches for all models.

Consult system shop drawing for treatment chamber depth as measured from the inlet pipe invert to base of the unit.
© AquaShieldTM, Inc. 2022. All rights reserved.

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III. Diversion Structures (External Bypass Features)
If a diversion (external bypass) configuration is present, it should be inspected as follows:

1. Inspect weir or other bypass feature for structural decay or damage. Weirs are more susceptible to damage than off-set piping and should be checked to confirm that they are not crumbling (concrete or brick) or decaying (steel).

2. Inspect diversion structure and bypass piping for signs of structural damage or blockage from debris or sediment accumulation.

3. When feasible, measure elevations on diversion weir or piping to ensure it is consistent with site plan designs.

4. Inspect downstream (convergence) structure(s) for sign of blockage or structural failure as noted above.

CLEANING
Schedule cleaning with local vactor company to remove sediment, trash, oil and other floatable pollutants. The captured material generally does not require special treatment or handling for disposal. Site-specific conditions or the presence of known contaminants may necessitate that appropriate actions be taken to clean and dispose of materials captured and retained by the AquaSwirl®. All cleaning activities should be performed in accordance with property health and safety procedures.

AquaShieldTM always recommends that all materials removed from the Aqua-Swirl® during the maintenance process be handled and disposed in accordance with local and state environmental or other regulatory requirements.

MAINTENANCE SCHEDULE
I. During Construction
Inspect the Aqua-Swirl® full capture device every three (3) months and clean the system as needed. The Aqua-Swirl® should be inspected and cleaned at the end of construction regardless of whether it has reached its maintenance trigger.

II. First Year Post-Construction
Inspect the Aqua-Swirl® every three (3) months and clean the system as needed.

Inspect and clean the system once annually regardless of whether it has reached its sediment, trash or floatable pollutant storage capacity.

III. Second and Subsequent Years Post-Construction
If the Aqua-Swirl® did not reach full sediment or floatable trash capacity in the First Year Post-Construction period, the system can be inspected and cleaned once annually. © AquaShieldTM, Inc. 2022. All rights reserved.

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If the Aqua-Swirl® reached full sediment, trash or floatable pollutant capacity in less than 12 months in the First Year Post-Construction period, the system should be inspected once every six (6) months and cleaned as needed.

The Aqua-Swirl® should be cleaned annually regardless of whether it reaches its sediment, trash or floatable pollutant capacity.

IV. Bypass Structures
Bypass structures should be inspected whenever the Aqua-Swirl® is inspected.

Maintenance should be performed on bypass structures as needed.

MAINTENANCE COMPANY INFORMATION
Company Name:

Street Address:

City: State/Prov.: Zip/Postal Code:

Contact: Title:

Office Phone: Cell Phone:

ACTIVITY LOG
Date of Cleaning: (Next inspection should be 3 months from this data for first year).

Time of Cleaning: Start: End:

Date of Next Inspection:

Floatable debris present: Yes No
Notes:

Oil present: Yes No Oil depth (inches):

Measurement method and notes:
© AquaShieldTM, Inc. 2022. All rights reserved.

A-58
STRUCTURAL CONDITIONS and OBSERVATIONS
Structural damage: Yes No Where:

Structural wear: Yes No Where:

Odors present: Yes No Describe:

Clogging: Yes No Describe:

Other Observations:

NOTES
Additional Comments and/or Actions To Be Taken Time Frame

ATTACHMENTS
• Attach site plan showing Aqua-Swirl® location.
• Attach detail drawing showing Aqua-Swirl® dimensions and model number. • If a diversion configuration is used, attach details showing basic design and elevations (where feasible).
© AquaShieldTM, Inc. 2022. All rights reserved.

A-59
Aqua-Swirl®

TABULAR MAINTENANCE SCHEDULE
Date Construction Started:

Date Construction Ended:

During Construction
Month
Activity 1 2 3 4 5 6 7 8 9 10 11 12
Inspect and Clean
as needed X X X X
Inspect Bypass and
maintain as needed X X X X
Clean System* X*
* The Aqua-Swirl® should be cleaned once a year regardless of whether it has reached full pollutant storage capacity. In addition, the system should be cleaned at the end of construction regardless of whether it has reach full pollutant storage capacity.

First Year Post-Construction
Month
Activity 1 2 3 4 5 6 7 8 9 10 11 12
Inspect and Clean
as needed X X X X
Inspect Bypass and
maintain as needed X X X X
Clean System* X*
* The Aqua-Swirl® should be cleaned once a year regardless of whether it has reached full pollutant storage capacity.

Second and Subsequent Years Post-Construction
Month
Activity 1 2 3 4 5 6 7 8 9 10 11 12
Inspect and Clean
as needed X*
Inspect Bypass,
maintain as needed X*
Clean System* X*
* If the Aqua-Swirl® did not reach full sediment or floatable pollutant capacity in the First Year Post-Construction period, the system can be inspected and cleaned once annually.

If the Aqua-Swirl® reached full sediment, trash or floatable pollutant capacity in less than 12 months in the First Year Post-Construction period, the system should be inspected once every six (6) months or more frequently if past history warrants, and cleaned as needed. The Aqua-Swirl® should be cleaned annually regardless of whether it reaches its full sediment, trash or floatable pollutant capacity. © AquaShieldTM, Inc. 2022. All rights reserved.

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AquaShield®
Stormwater Treatment Solutions
1 8/24/2018
Aqua-Swirl® Specifications

GENERAL
This specification shall govern the performance, materials, and fabrication of the Stormwater Treatment System.

SCOPE OF WORK
The Aqua-Swirl® shall be provided by AquaShield™, Inc., 2733 Kanasita drive, Suite 111, Chattanooga, TN (888-344-9044), and shall adhere to the following material and performance specifications at the specified design flows and storage capacities.

MATERIALS
A. Stormwater Treatment System shall be made from Polymer Coated Steel (PCS) corrugated pipe meeting the following requirements:
1) Steel shall be zinc-coated (galvanized) and conform to ASTM A929 with a coating weight of 2 oz/ft² of surface (total both sides) to provide zinc coating thickness of 43µm (0.0017 in.) on each surface. Corrugations shall conform to the
requirements stated in Specification A929/A 929M.
2) The polymer coating shall conform to ASTM A742. Polymer coating shall be a film coating comprised of at least 85% ethylene acrylic acid copolymer and be capable of being applied to the galvanized steel sheet. After application, the polymer coating shall be free of holes, tears, and
discontinuities, and shall be sufficiently flexible so that it will withstand corrugating, forming, lockseaming operations, and punching of holes.
3) REQUIREMENTS FOR POLYMER COATING
a) Adhesion – There shall be no spalling or cracking of the coating or disbanding of the coating at the cut, when
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AquaShield®
Stormwater Treatment Solutions
2 8/24/2018
tested in accordance with ASTM A742/A 742M-03 Section

9.1. b) Impact – There shall be no break in the polymer coating when tested in accordance with ASTM A742/A 742M-03
Section 9.2.
c) Thickness of Coating – The thickness of the polymer
coating shall meet the requirements of ASTM A742/A
742M-03 Section 4 when tested in accordance with
Section 9.3. The thicknesses indicated are minimum
values at any point not less than 3/8 in. (10mm) from an edge.
d) Holidays – The polymer coating on the steel shall be substantially free of holidays when tested in accordance with ASTM A742/A 742M-03 Section 9.4. An average of
two holidays per square foot (22 holidays per square
meter) of actual surface area on the test specimen shall be permitted.
e) Abrasion Resistance – The average abrasion coefficient when tested in accordance with ASTM A742/A 742M-03
Section 9.5, shall be a minimum of 100 (expressed in
g/mil of thickness) or 3.9 (expressed in g/µm of
thickness).
f) Imperviousness – There shall be no loosening or
separation of the polymer coating from the galvanized
steel substrate when tested in accordance with ASTM
A742/A 742M-03 Section 9.6.
g) Freeze-Thaw Resistance – The specimen shall withstand 100 freeze-thaw cycles, per ASTM A742/A 742M-03
Section 9.7, without spalling, disbanding, or other
detrimental effects.
h) Weatherability – The specimens shall withstand 100
hours of weathering with no observable delamination or
cracking, when tested in accordance with ASTM A742/A
742M-03 Section 9.8.
i) Resistance to Microbial Attack – There shall be no effect of microbial attack of the polymer coating when tested in accordance with ASTM A742A 742M-03 Section 9.9.

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AquaShield®
Stormwater Treatment Solutions
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B. TRASH SCREEN - The Stormwater Treatment System shall be equipped with a screen capable of retaining trash 5mm (0.197- inch) or greater in size. Screen shall be T304 stainless steel, minimum 16ga. (0.0625-inch) thickness, with maximum 4.7mm (0.1875-inch) openings. Screen shall be affixed so that all effluent flow from the treatment chamber must pass through the screen openings.

C. REJECTION – The Stormwater Treatment System may be rejected for failure to meet any of the requirements of this specification.

PERFORMANCE
A. The Stormwater Treatment System shall include a ___-inch inner diameter (ID) circular hydrodynamic flow-through treatment chamber to treat the incoming water. A tangential inlet shall be provided to induce a swirling flow pattern that will cause sedimentary solids to accumulate in the bottom center of the chamber in such a way as to prevent re-suspension of captured particles. An arched baffle wall shall be provided in such a way as to prevent floatable liquid oils and solids from exiting the treatment chamber while enhancing the swirling action of the stormwater. A stainless steel screen shall be provided in such a way that trash particles 5mm (0.197-inch) and greater are prevented from exiting the treatment chamber.

B. The Stormwater Treatment System shall have a
trash/debris/sediment storage capacity of ___ cubic feet and be capable of capturing ____ gallons of petroleum hydrocarbons. The Stormwater Treatment System shall have a treatment capacity of _____ cubic feet per second (cfs). The Stormwater Treatment System shall be capable of removing floating trash and debris 5mm (0.197-inch) or greater along with floatable oils from stormwater entering the treatment chamber.

C. Service access to the Stormwater Treatment System shall be provided via 30-inch inner diameter (ID) access riser(s) over the treatment chamber such that no confined space entry is required to perform routine inspection and maintenance functions.

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AquaShield®
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TREATMENT CHAMBER CONSTRUCTION
A. The treatment chamber shall be constructed from Polymer Coated Steel (PCS), 16 gauge thickness, with 2.67” x ½” corrugation. For sized above 84” ID, the treatment chamber shall be constructed from PCS, 14 gauge thickness, with 2.67” x ½” corrugation. For sizes above 120” ID the treatment chamber shall be constructed from PCS, 10 gauge thickness, with 3.00” x 1” corrugation.

B. Top and bottom plate thickness and reinforcement shall be suitable to withstand HS-25 surface loading up to 8 feet of cover depth.

Calculations must be provided to justify the thickness of the top and bottom plates and associated reinforcement. Top and bottom plates shall be Metal Inert Gas (MIG) welded to the treatment chamber structure. All welds shall be free of porosity, pinholes, and obvious defects. Welded areas shall be thoroughly cleaned and coated with two coats of TPC-515-7 black synthetic coating.

C. The inlets and outlets shall be MIG welded to the treatment chamber structure. All welds shall be free of pinholes, porosity and obvious defects. Welded areas shall be thoroughly cleaned and coated with two coats of TPC-515-7 black synthetic coating.

D. The arched baffle wall shall be fabricated from PCS and shall be MIG welded to the inside of the treatment chamber with
connections made at 180 degrees of each end. Welds shall be coated with two coats of TPC-515-7 black synthetic coating.

E. The stainless steel trash screen shall be joined to the baffle utilizing stainless steel fasteners such that no flow can bypass the screen.

Screen shall be T304 stainless steel, minimum 16ga. (0.0625-inch) thickness, with maximum 4.7mm (0.1875-inch) openings. The bottom of the screen shall be either capped with a solid PCS plate, or extend to the bottom of the treatment chamber, and be joined by stainless steel fasteners so that no flow can bypass the screen.

F. Lifting supports may be provided on the exterior of the Stormwater Treatment System in such a way as to allow the prevention of undue stress to critical components of the Stormwater Treatment A-64
AquaShield®
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5 8/24/2018
System during loading, off-loading, and moving operations. The lifting supports shall be constructed as an integral part of the treatment chamber.

G. A concrete pad shall be required to support the manhole frame and cover. When used in a traffic area the pad design shall be approved by a professional engineer and the calculations must be included in the submittal.

H. The manufacturer, upon request, can supply antifloatation/buoyancy calculations. In addition, typical drawings of the AquaShield™ Stormwater Treatment System with concrete antifloatation structures can also be provided. Anti-floatation structure design and approval are ultimately the responsibility of the specifying engineer. The contractor shall provide the anti-floatation structures.

INSTALLATION
A. Excavation and Bedding
The trench and trench bottom shall be constructed in accordance with ASTM A 798 Section 5, Trench Excavation, Section 6, Foundation, and Section 7, Bedding. The PCS Swirl Concentrator shall be installed on a stable base consisting of at least 6-inches of fine, readily compacted soil or granular fill material, and compacted to 95% proctor density. Bedding shall not contain stones retained on a 3-inch ring, frozen lumps, highly plastic clay, organic material, corrosive material, or other deleterious foreign materials. All required safety precautions for Swirl Concentrator installation are the responsibility of the contractor and shall be per OSHA approved methods.

B. Contractor
The contractor shall be responsible for preparing the site for the system installation including, but not limited to, temporary shoring, excavation, cutting and removing pipe, new pipe, bedding, and compaction. The contractor shall be responsible for furnishing the means to lift the system components off the delivery trucks. The contractor shall be responsible for providing any concrete antiA-65 AquaShield®
Stormwater Treatment Solutions
6 8/24/2018
floatation/anti-creep restraints, anchors, collars, etc. with any straps or connection devices required. The contractor shall be responsible for sealing the pipe connections to the Stormwater Treatment System, backfilling and furnishing all labor, tools, and materials needed.

SUBMITTALS
The contractor shall be provided with dimensional drawings; and when specified, utilize these drawings as the basis for preparation of shop drawings showing details for construction and reinforcing. Shop drawings shall be annotated to indicate all materials to be used and all applicable standards for materials, required tests of materials, and design assumptions for structural analysis. Shop drawings shall be prepared at a scale of not less than ¼ inch per foot. One (1) hard copy of said shop drawings shall be submitted to the specifying engineer for review and approval.

QUALITY CONTROL INSPECTION
A. Materials
The quality of materials, the process of manufacturing, and the finished sections shall be subject to inspection by the specifying engineer. Such inspection may be made at the place of
construction, on the work site after delivery, or at both places. The sections shall be subject to rejection at any time if material conditions fail to meet any of the specification requirements, even though sample sections may have been accepted as satisfactory at the place of manufacture. Sections rejected after delivery to the site shall be marked for identification and shall be removed from the site at once. All sections, which are damaged beyond repair after delivery will be rejected; and, if already installed, shall be repaired to the specifying engineer’s acceptance level, if permitted, or removed and replaced entirely at the contractor’s expense.

B. Inspection
The Stormwater Treatment System shall be assembled complete at the place of manufacture and shall be hydrostatically tested and certified leak proof prior to shipment to the jobsite. All sections A-66
AquaShield®
Stormwater Treatment Solutions
7 8/24/2018
shall be inspected for general appearance, dimensions, soundness, etc.

C. Defects
Structural defects may be repaired (subject to the acceptance of the specifying engineer) after demonstration by the manufacturer that strong and permanent repairs will be made. The specifying engineer, before final acceptance of the components, shall carefully inspect repairs.

A-67
City of Seal Beach Master Approved: 4/24/26
3224469v1

EXHIBIT B

PROPOSAL
(Consultant’s Proposal for Professional Design
Engineering Services for the 5th Street at Electric Avenue Stormwater Treatment Project, dated August 26, 2026)
City of
Seal Beach

PROPOSAL FOR
5TH STREET AT ELECTRIC AVENUE

STORMWATER TREATMENT PROJECT
AUGUST 26, 2026
AUGUST 26, 2026

BKF ENGINEERS
4675 MacArthur Court, Suite 400, Newport Beach, CA 92660 | t. 949.526.8460 August 26, 2026
City of Seal Beach
Ms. Kathryne Cho
Deputy Public Works Director/City Engineer
Department of Public Works
211 Eighth Street
Seal Beach, California 90740
SUBJECT: PROPOSAL FOR 5 T H S T R E E T A T E L E C T R I C A V E N U E

S T O R M W A T E R T R E A T M E N T P R O J E C T
Dear Ms. Cho,
The City of Seal Beach (City) is seeking a qualified engineering consultant to provide services related to the installation of a trash removal system for stormwater draining to the existing catch basin located at the northeast corner of the intersection of 5th Street and Electric Avenue. Existing stormwater flows tributary to this location will be increased in the future when the City implements a storm drain project that will collect flow from areas to the east of the intersection. As such, the trash removal system will be designed to accommodate flows from the future watershed.

This proposal provides for the design and the preparation of plans, specifications, and estimates (PS&E) documents for the trash removal system. The completed project will serve to improve water quality in the San Gabriel River and its outfall located just north of one of the City’s signature environmental and recreational natural resources, Seal Beach. BKF Engineers (BKF) welcomes the opportunity to submit this proposal for the City’s consideration.

UNDERSTANDING PROJECT CHALLENGES AND OPPORTUNITIES. Understanding and managing the key issues associated with the project will be critical to its success. BKF is very familiar with this site as a result of our field review and our responsibilities as engineer-of-record for the similar project that we designed at the intersection of Galleon Way and Electric Avenue. We have identified potential challenges and opportunities that this Project presents, which has allowed us to begin formulating viable solutions. These solutions are presented in our Project Understanding and include:
▪ Utility Avoidance
▪ ADA Impact Avoidance
▪ Shallow Cover Installations
▪ Groundwater Management
▪ Traffic Control
ABOUT US. Since 1915, BKF Engineers has built a reputation on the ability to plan, design, survey, and successfully implement small to complex projects. We draw upon and utilize our experience to guide projects from the inception and feasibility study stages through final design and construction that identify physical constraints, potential risks, and value engineering alternatives; resulting in projects that exceed expectations.

EXTENSIVE SIMILAR EXPERIENCE. For more than 111 years, BKF has been delivering projects that address stormwater and drainage issues to public agencies across southern California. Our team has successfully executed similar stormwater treatment and storm drain modification projects to improve the living environment of communities. With a proactive approach, we will work with the City to enhance the quality of life for its residents and visitors well into the future.

BKF ENGINEERS
4675 MacArthur Court, Suite 400, Newport Beach, CA 92660 | t. 949.526.8460 HISTORY AND FAMILIARITY WITH THE CITY. Our team is intimately familiar with seaside communities in California. Our designated project manager has completed projects in San Clemente, Laguna Beach, Newport Beach, and Long Beach. We also understand the operation environment of the City through our recent completion of the design of the Galleon Way at Electric Avenue Stormwater Treatment Project, which has been advertised and awarded for construction. This previous work with the City gives us a deeper understanding of the specific origins and requirements of this project and will inform our approach to providing tailored services that ensure the project’s success.

EXPERIENCED TEAM. Our Team members have recently worked on similar stormwater quality projects including the City’s Galleon Way at Electric Avenue Stormwater Treatment Project, The Greenville-Banning Channel and Santa Ana River Hydrodynamic Separator Project for the City of Costa Mesa, the City of Newport Beach’s Arches Diversion Project, and the Lower San Diego Creek Low-Flow Diversion Study for the Irvine Ranch Water District.

These projects include similar design and configuration elements to this project. We have included a comprehensive team that will allow us to respond to the City’s requests in a timely manner, promote continuity, and streamline project deliverables.

Leading the team is BKF’s Project Manager, Daniel Villines, PE. Daniel has extensive experience in the completion of storm drain improvement projects that include stormwater treatment and trash capture features.

Daniel understands that protentional inconveniences to the City residents and visitors are important and must be considered as a part of the project’s design. He is thoughtful and proactive in his approach and maintains active lines of communication among the Team, the City, and project stakeholders.

This letter is signed by BKF’s Associate Vice President, Roger Chung, who is authorized to negotiate with the City and bind the firm contractually. BKF Engineers has reviewed the RFP and Sample Contract in their entirety and have no exceptions to any requirements and terms of conditions. This proposal shall remain valid for a period of ninety (90) days after the proposal submission. BKF’s work under this contract will be completed out of our Newport Beach office, located at 4675 MacArthur Court, Suite 400, Newport Beach, CA 92660. We look forward to the opportunity to work with the City and have the available resources to commit to this project immediately.

We are available to expand on any portion of our proposal and answer any further questions. Please feel free to contact Dan Villines at 949.526.8488 or myself at 949.526.8457 during the selection process.

Sincerely,

BKF ENGINEERS

Roger Chung, PE Daniel Villines, PE
Associate Vice President Senior Project Manager
(E) [email protected] (E) [email protected]
(P) 949.526.8457 Direct (P) 949.526.8488 Direct

TABLE OF CONTENTS
STAFFING............................................................................................1 COMPANY QUALIFICATIONS & REFERENCES...............................3 SCHEDULE..........................................................................................9 ESTIMATED HOURS ........................................................................10 PROJECT UNDERSTANDING...........................................................11 PROJECT APPROACH......................................................................14 SCOPE OF SERVICES......................................................................15 FEE PROPOSAL...........................................[SEPERATE ENVELOPE] EXCEPTIONS, BUSINESS INFORMATION, SIGNATORIES............18

RESUMES
04 / PROJECT ORGANIZATION & STAFFING
City of San Clemente
Poche Beach Water Reclamation Diversion Design Project 14 STAFFING: WE ARE ORGANIZED TO SUPPORT YOU
BKF has assigned professional engineers to specific roles based on the professionals’ expertise and availability.

Key positions required to execute project responsibilities will remain appropriately staffed throughout the life of the contract. We are organized for a quick response to address your needs and are able to meet tight schedules. If needed, BKF has the resources to provide additional experienced personnel, office support, and/ or field staff. With a total staff of over 850 employees, including 200+ licensed civil engineers and 23 licensed land surveyors from which to draw resources, we are able to schedule multiple tasks simultaneously to respond to project needs quickly.

Project Engineer/Hydrology
& Hydraulics
Roger Chung, PE, CFM,

QSD/P, ENV SP
Pumps & Force Mains
Jake Taylor, PE, QSD/P
Vik Bapna, PE, ENV SP, CPSWQ, QSD/P *
Larry Tortuya, PE, ENV SP, CFM, QSD/P *
Technical Advisor
Gerald (Gerry) Greene, DEnv, PE,

QEP, QSD/P
Permitting Support
Phil Jones, PE, QSD/P
Survey
Davis Thresh, PLS
PS&E
Robin Hayes, PE
Geotechnical
Dennis Boratynec, GE, PE *
Electrical
Christopher Karjala *
Dale Karjala, EE *

TECHNICAL RESOURCES
Dan Villines, PE, QSD

PROJECT MANAGER
Sravan Paladugu, PE, QSD/P, CFM
QA/QC
Chris Rideout, PE

PRINCIPAL-IN-CHARGE
* indicates subconsultant

BKF ENGINEERS, SURVEYORS, PLANNERS
450+ SUPPORT STAFF

BENEFITS WE BRING TO THE CITY
A project team with 100+
years of water resources
design experience in Orange,
Los Angeles, Riverside, San
Bernardino, Kern, &
San Diego Counties
A project team that has
been involved with water
resources design, planning,
and infrastructure projects
throughout Southern California
A project team familiar with the
City’s systems and standards,
allowing us to integrate seamlessly
with your staff to deliver the
5th Street at Electric Avenue
Stormwater Treatment Project
on time and on budget
Dan Villines, PE, QSD
Project Manager
949.526.8488 [email protected]
4675 MacArthur Ct., Ste. 400,
Newport Beach, CA 92660

CONTACT & PRIMARY OFFICE
Roger Chung
PE, CFM, ENV SP, QSD/P, BC.WRE, F. ASCE
Survey
David Thresh, PLS
Plans, Specifications & Estimates
Robin Hayes, PE
Geotechnical
Dennis Boratynec, PGE, PE * City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 1 Fee
Proposal. City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 2 01 / BACKGROUND & APPROACH
City of San Clemente
Poche Beach Water Reclamation Diversion Design Project 5 Civil Engineering • Surveying • Planning • Transportation • Water Resources • Sustainability • Construction Management • Utility Locating • Grants and Funding

SERVICES
BKF Engineers
DELIVERING INSPIRED INFRASTRUCTURE FOR OVER 100 YEARS
Newport Beach
Modesto
Oakland
Pleasanton
Portland
Redwood City
Roseville
Sacramento
San Francisco
Salinas
San Diego
San Jose
San Luis Obispo
San Rafael
Santa Rosa
Walnut Creek

OFFICE LOCATIONS
Serving the western United States since 1915, BKF Engineers is a leading civil engineering and surveying firm, successfully planning, designing, surveying, and funding projects. Our legacy is indicative of our resilience and dedication to supporting the technical expertise and collaboration critical to implementing the visions of the communities we serve. By leveraging our diverse project portfolio in combination with innovative design solutions, BKF’s team of over 850 experienced members is dedicated to successfully deliver sustainable and dynamic projects for our communities and partners.

Through our growing presence in over 16 locations, BKF supports a diverse range of markets, including transportation, water resources, land surveying, infrastructure, land development, research and laboratory facilities, government, civic, parks and open space, education, and healthcare. We provide a number of specialty services--agency permit expediting, master planning, grant/funding strategies, sustainable infrastructure, site accessibility consulting, hydrology/hydraulics, traffic signal and traffic handling designs, utility locating services, automated construction surveying monitoring, and 3D laser scanning—to expedite the design and approval of projects.

BKF’s proven project approach recognizes that developing dynamic projects is informed by focused team collaboration, mitigating physical constraints and potential risks, and balancing design goals with value engineering solutions. As a partner with our clients, BKF is mutually invested in the successful outcome of projects through providing strategic advice commencing at the initial feasibility phases through the completion of construction.

QUALIFICATIONS AND REFERENCES
City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 3

BKF ENGINEERS
4675 MacArthur Court, Suite 400, Newport Beach, CA 92660 | t. 949.526.8460

STORMWATER TREATMENT IMPROVEMENTS

AT GALLEON WAY AND ELECTRIC AVENUE
Seal Beach, California
Dan Villines served as project manager for the preparation of plans, specifications, and estimates (PS&E) documents for the construction of a diversion line and Aqua-Swirl trash capture device in the City of Seal Beach, CA (City). The design process included and evaluation of the original facility layout as included in the City’s 2024 Environmental Cleanup Program Tier 1 Grant Application to the Orange County Transportation Authority (Grant). The evaluation resulted in an alternative approach to the project that reduced the project cost, shortened the duration of construction, reduced impacts to the local neighborhood, and eliminated multiple utility conflicts. The revised approach recognized that a flow diversion configuration would accomplish the goals of the OCTA Grant and fulfil the City’s needs. The PS&E documents were successfully advertised and awarded to a contractor in July 2026 for construction. BKF is presently providing construction support activities.

Relevant Staff:

Dan Villines
Project Manager
Client:

City of Seal Beach
Project Status:

Design Completed in 2026
Reference:

Kathryn Cho
Deputy Director of Public Work
City Engineer
City of Seal Beach
211 Eighth Street
Seal Beach, CA 90740
(562) 431-2527 x 1321
[email protected]
Services Provided:

Survey & Mapping
Hydraulic Analysis
Storm Drain Design
Structural Analyses
PS&E Documents
Construction Support Svcs.

Construction Value:
$300,000
City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 4

BKF ENGINEERS
4675 MacArthur Court, Suite 400, Newport Beach, CA 92660 | t. 949.526.8460

PLACENTIA AVENUE STORMWATER TRASH CAPTURE
Costa Mesa, California
The City of Costa Mesa (City), in compliance with the Santa Ana Regional Water Quality Control Board’s Water Code 13383, retained BKF Engineers to evaluate and recommend a preferred hydrodynamic trash separator device along the alignment of a 72” reinforced concrete pipe storm drain in Placentia Avenue prior to its discharge into the OCFCD Fairview Channel. Roger Chung served as the project manager for the project.

At the point of intercept for trash capture, the 72” storm drain conveys flow from an approximate 232-acre watershed consisting of mixed land uses including industrial, commercial, and residential developments. Based on the evaluation process, BKF identified a site that was outside the travelway of Placentia Avenue which eliminated traffic impacts and reduced construction cost. BKF performed hydraulic analyses, provided survey, performed utilities research, developed plans, specifications and estimate (PS&E) documents, assisted the City through the bid process, and provided construction support services.

Relevant Staff:

Roger Chung
Project Manager
Project Status:

Completed in 2024
Reference:

Bobby Fouladi, PE
Senior Engineer
City of Costa Mesa
77 Fair Drive
Costa Mesa, CA 92626
714.754.5222
bobby.fouladi@
costamesaca.gov
Services Provided:

Hydrology Studies
Hydraulic Analysis
Gabion Wall Design
Utilities Coordination
Regulatory Agencies
Right of Way Delineation
Report Preparation
PS&E Preparation
Construction Support
As-Builts
Construction Value:
$550,000
City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 5

BKF ENGINEERS
4675 MacArthur Court, Suite 400, Newport Beach, CA 92660 | t. 949.526.8460

MARIN COUNTY LARGE TRASH CAPTURE DEVICE
Marin County, California
The County of Marin selected BKF to assist with preliminary design and a feasibility analysis to support initial decisions made regarding what will be the County's first installed trash capture device. Due to a fast-approaching funding deadlines, BKF worked diligently to prepare the preliminary design and analysis within an aggressive 3- week timeframe. BKF prepared a Feasibility Report to analyze the existing conditions, design criteria, feasibility and cost of various approved trash capture devices, potential trash capture device locations, configuration of the trash capture devices, and to develop a preferred project alternative. Additionally, the Feasibility Report identified possible construction staging areas, discussed dewatering considerations, approximate earthwork quantities, and provided an opinion of probable construction costs. Through the Feasibility Report process, BKF, in conjunction with the County, determined potential and alternate locations and device costs for nutrient separating baffle box certified full trash capture devices in priority land use areas within Marin City. Preliminary design drawings were prepared to illustrate the preferred device types and locations. The development of the Feasibility Report was the first of three phases that the County will need to undertake in their effort to install new trash capture devices. The Feasibility Report was funded by county funds and used to solicit grant funding.

Relevant Staff:

Dan Villines
Technical Advisor
Roger Chung
H&H Task Lead
Client:

Marin County
Reference:

Rob Carson
Contract Manager
County of Marin
Department of Public Works
3501 Civic Center Drive
San Rafael, CA 94903
415.473.2745
[email protected]
Project Status:

Completed 2021
Services Provided:

Hydrology Studies
Hydraulic Analysis
Storm Drain Design
Report Preparation
PS&E preparation
Construction Value:
$5,550,000 (Est.)
City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 6

BKF ENGINEERS
4675 MacArthur Court, Suite 400, Newport Beach, CA 92660 | t. 949.526.8460 VALLEJO FLOOD AND WASTEWATER DISTRICT’S

STORMWATER AND TRASH CAPTURE PROJECT
Vallejo, California
The Vallejo Flood & Wastewater District and the City of Vallejo are co-permittees for Vallejo, and share responsibilities for trash load reduction under Provision C.10 of the Municipal Regional Permit (MRP). To comply with the MRP, the District was required to provide an 80% reduction to trash load. The District selected three locations for large trash capture facilities that are anticipated to meet the 80% reduction. BKF was responsible for the design of the facilities at all three locations. Tasks, funded by the District, included conducting a feasibility analysis for each project location using large trash capture technologies currently approved by the San Francisco Regional Water Quality Control Board, creating conceptual plans, and developing those plans into construction plans, specifications, and estimates. The site were:
• Site 1: Solano Avenue (3,610 acres treated): StormTrap, TrashTrap Unit • Site 2: Sonoma Boulevard (475 acres treated): StormTrap, TrashTrap Unit • Site 3: B.W. Williams Drive (4,382 acres treated): StormTrap, TrashTrap Unit Relevant Staff:

Dan Villines
Technical Advisor
Client:

Vallejo Flood and Wastewater Dist.

Reference:

Kyke Broughton
Eng. Supervisor
Vallejo Flood &
Watershed Dist.
450 Ryder Street
Vallejo, CA 94590
kbroughton@
vallejowastewater.org
Project Status:

Completed 2022
Services Provided:

Survey & Mapping
Hydrology Studies
Hydraulic Analysis
Storm Drain Design
PS&E Preparation
Const. Support
Construction Value:
$2,400,000
City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 7

BKF ENGINEERS
4675 MacArthur Court, Suite 400, Newport Beach, CA 92660 | t. 949.526.8460

LARGE TRASH CAPTURE DEVICE INSTALLATION PROJECT
San Jose, California
All cities within jurisdiction of the San Francisco Bay Regional Water Quality Control Board (RWQCB) need to eliminate all trash and debris discharging from their storm drain systems by 2022. The City of San Jose has developed a Long-Term Trash Load Reduction Plan that includes installing trash capture devices (or hydrodynamic separator units) immediately upstream of large capacity storm drain outfalls. The City has already equipped a total of nine locations with hydrodynamic separator units (HDS) and is planning to install devices in a minimum of 15 other locations as part of the City’s Large Trash Capture Device Installation Project. The requirement from the RWQCB was issued via Provision C.10 of the Municipal Regional Stormwater Discharge Permit in November 2015.

The project was City funded and overcame several challenges including the hydraulic impacts of new devices on existing storm drain systems. Access to the new devices was accommodated through new manholes and access hatches. Right-of-way was closely considered to ensure that private property encroachments did not occur. And utilities needed to be avoided as much as practicable. BKF assisted the City of San Jose by providing engineering services for installing HDS units at three new locations as part of the project’s phase V. These locations include:
▪ Site 1: Edwards and McLellan, 610 acres, 66-in reinforced concrete pipe (RCP) ▪ Site 2: 33rd and Melody, 1,278 acres, 6-by-5-ft reinforced concrete box ▪ Site 3: Sonora & Forrestal, 1,522 acres, 66-in RCP and 78-in RCP Relevant Staff:

Dan Villines
Technical Advisor
Client:

City of San Jose
Reference:

Rajani Nair
Project Director
City of San Jose
Public Works Dept.
200 E. Santa Clara St.

Tower 6th Floor
Rajani.nair@
sanjoseca.gov
Project Status:

Completed 2021
Services Provided:

Survey & Mapping
Hydrology Studies
Hydraulic Analysis
PS&E Preparation
Construction Support
Permit Processing
Construction Value:
$800,000
City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 8 Task Name Duration Start Finish

1. Collect and Review Existing Information 10 days Mon 11/2/26 Fri 11/13/26

2. Field Survey and Mapping 20 days Mon 11/2/26 Fri 11/27/26

3. Peer Review and Hydraulic Analysis 10 days Mon 11/16/26 Fri 11/27/26

4. Utility Search and Coordination 20 days Mon 11/2/26 Fri 11/27/26

5. Geotechnical Investigations and Reporting 30 days Mon 11/9/26 Fri 12/18/26

6. 60%-Level Plans, Specifications and Estimates 15 days Mon 11/30/26 Fri 12/18/26 City Review of 90% PS&E 20 days Mon 12/21/26 Fri 1/15/27

7. Utility Potholing [2 Locations] 10 days Mon 1/18/27 Fri 1/29/27

8. 90%-Level Plans, Specifications and Estimates 15 days Mon 2/1/27 Fri 2/19/27 City Review of 90% PS&E 10 days Mon 2/22/27 Fri 3/5/27

9. Final Plans, Specifications and Estimates 10 days Mon 3/8/27 Fri 3/19/27

10. Meetings, Coordination, and Project Management 100 days Mon 11/2/26 Fri 3/19/27

11. Bid Support Services 30 days Mon 3/22/27 Fri 4/30/27

12. Construction Support Services 90 days Mon 5/3/27 Fri 9/3/27 25 1 8 15 22 29 6 13 20 27 3 10 17 24 31 7 14 21 28 7 14 21 28 4 11 18 25 2 9 16 23 30 Nov '26 Dec '26 Jan '27 Feb '27 Mar '27 Apr '27 May '27 Jun '27 Task
Split
Milestone
Summary
Project Summary
Inactive Task
Inactive Milestone
Inactive Summary
Manual Task
Duration-only
Manual Summary Rollup
Manual Summary
Start-only
Finish-only
External Tasks
External Milestone
Deadline
Progress
Manual Progress

Project: Schedule_5th_Street
Date: Sat 8/22/26
Construction 5TH STREET AT ELECTRIC AVENUE STORMWATER TREATMENT PROJECT SCHEDULE City of Seal Beach 5th Street at Electric Avenue Stormwater Treatment Project 9

SPM SPE DE SC CM Total
hrs hrs hrs hrs hrs hrs

1. Collect and Review Existing Information 8 4 12

2. Field Survey and Mapping 2 12 8 8 30

3. Peer Review and Hydraulic Analysis 2 8 10

4. Utility Search and Coordination 24 24

5. Geotechnical Investigations and Reporting 2 2

6. 60%-Level Plans, Specifications and Estimates [5 Sheets] 2 32 8 42

7. Utility Potholing [2 Locations] 4 4

8. 90%-Level Plans, Specifications and Estimates [5 Sheets] 2 16 4 22

9. Final Plans, Specifications and Estimates [5 Sheets] 2 8 10

10. Meetings, Coordination, and Project Management 32 3211. Bid Support Services 14 1412. Construction Support Services 24 2413. Reimbursable Expenses 0 86 84 40 8 8 226
Classification Descriptions:SPM = Senior Project Manager (BKF)SPE = Senior Project Engineer (BKF)DE = Design Engineer (BKF)SC = Survey Chief (BKF)CM = Survey Chainman

GRAND TOTAL HOURS
City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project

ESTIMATED HOURS

BKF ENGINEERS
Task Description
8/23/2026
City of Seal Beach5th Street at Electric Avenue Stormwater Treatment Project 10 BKF ENGINEERS
4675 MacArthur Court, Suite 400, Newport Beach, CA 92660 | t. 949.526.8460

PROJECT UNDERSTANDING
BKF understands that a feasibility study was
conducted by the City to determine the locations
for the interception of nuisance and storm water
flow for the purpose of removing conveyed trash
prior to its discharge into the San Gabriel River.

One of the two locations identified for
interception is the northeast corner of the
intersection of 5th Street and Electric Avenue.

The interception site is presently serviced by a
single catch basin, that has a 7-foot-wide
opening. The existing catch basin is connected to
a FloGard filtration system. It is important to note
that the FloGard unit not only possesses trash
removal features, but it also provides a higher
level of flow treatment by way of its filter
cartridges, which work to remove oil and grease.

Picture 1 shows the FloGard catch basin.

A future storm drain project is planned that will
ultimately convey nuisance and storm water from
approximately 37.3 acres of streets, homes, and
commercial sites to the interception site. As such,
the device to be used for the removal of trash
will need to be sized to accommodate this future
condition. The device identified in the feasibility
study is the AS-9 Aqua-Swirl Hydrodynamic
Trash Separator.

The feasibility study provided a preliminary
layout of the proposed project. The layout
consisted of the replacement of the existing
catch basin and FloGard filter, the use of a 48-
inch reinforced concrete pipe (RCP) storm drain
to convey flows from the future storm drain
project, and an upsized connection for the new
48-inch RCP to the existing storm drain in Electric
Avenue, which drains to the San Gabriel River.

Collectively, the preliminary layout will be
referred to as the Proposed Project. The
Proposed Project is shown on Figure 1.

PROPOSED PROJECT CHALLENGES
In developing plans for the Proposed Project
several challenges must be considered.

These challenges must be factored into the
engineering process to ensure that a
constructable, effective, and cost-efficient
design is implemented. The challenges are
as follows:

Lessening of Water Quality – The Proposed
Project will remove the existing FloGard
catch basin in order to affect a trash-only
treatment process. As such, the oil and
grease removal benefits provided by the
FloGard system will be removed.

Future Storm Drain Project Connection – The
Proposed Project does not provide for the
future connection of the 48-inch RCP. It only
implies that such a connection would need
to be made at the proposed replacement
catch basin in order for its conveyed flow to
reach the proposed Aqua-Swirl device.

Utility Relocations – The Proposed Project will
require the relocation of an existing
waterline and potentially the relocation of
an existing gas line in order to bring the
proposed 48-inch RCP to the existing storm
drain in Electric Avenue.

Traffic Impacts – The Proposed Project will
cause impacts associated with the
trenching, placement, backfill, and trench
repairs that will be required for the extension
of the proposed 48-inch RCP from the AquaPicture 1: Existing FloGard Catch Basin City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 11

BKF ENGINEERS
4675 MacArthur Court, Suite 400, Newport Beach, CA 92660 | t. 949.526.8460 Swirl unit to the existing storm drain in Electric
Avenue.

ALTERNATIVE DESIGN APPROACH
After considering the above-stated
challenges, BKF developed an Alternative
Design Approach. The Alternative Design
Approach provides the following benefits:
• The continued water quality benefits of
the FloGard catch basin;
• Provides connections for the future storm
drain project to the Aqua-Swirl unit and
to the existing storm drain in Electric
Avenue;
• Achieves the trash removal goals of the
project;
• Eliminates the present need for the
relocation of the water and gas lines;
• Provides functionality of the Aqua-Swirl
unit under bother existing and future flow
conditions;
• Eliminates traffic disruptions in Electric
Avenue required for trenching, pipe
installation, and trench repair; and
• Reduces project cost.

The Alternative Design Approach is shown in
red on the lower half of Figure 1. The
alternative consists of the following
components identified from upstream to
downstream:
• The preservation of the FloGard catch
basin, and a portion of its existing 12-inch
lateral pipe, and the installation of an
Automatic Retractable Screen (ARS)
protection at the catch basin opening;
• The construction of a new junction
structure for the connection of the future
48-inch storm drain and the existing 12-
inch lateral pipe from the existing catch
basin;
• The installation of the AS-9 Aqua-Swirl unit
with 48-inch connector pipes to allow for
present and future storm drain flows to
pass through the unit;
• The construction of a concrete collar to
tie the existing 12-inch lateral pipe that
presently extends to the storm drain in
Electric Avenue to the new 48-inch
Aqua-Swirl discharge pipe segment.

The future storm drain project, which will
expand the watershed area tributary to this
location, will simply need to tie into the new
junction structure. The 48-inch RCP outlet
from the Aqua-Swirl unit would then be
extended to the existing storm drain in
Electric Avenue as a part of the future
project.

During the interim, prior to the future project,
the Aqua-Swirl unit will serve to provide trash
removal benefits for flow that is presently
tributary to this location.

The Alternative Design Approach essentially
provides for functionality with the existing
storm drain facilities, provides added trash
capture benefits under existing conditions,
and achieves trash capture capacity under
conditions reflective of the future storm drain
project.
,
Picture 2: The Proposed Project will require trenching across Electric Avenue shown here at its intersection with 5th Street.

City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 12

BKF ENGINEERS
4675 MacArthur Court, Suite 400, Newport Beach, CA 92660 | t. 949.526.8460

PROJECT APPROACH
BKF will initiate the project with a kickoff
meeting with City staff to review the scope
of work and project schedule. The meeting
will also discuss the Proposed Project and the
Alternative Design Approach to determine
the City’s preference between the two
options.

During the course of the project, BKF will
track and manage the OCTA ECP grant that
has been obtained by the City. Grant
tracking will include monitoring of the grant’s
milestones, preparing grant extension
requests, and communications with grant
managers at OCTA.

Survey of the site will then be initiated. City
and County survey controls in vicinity of the
Project will be established and transferred to
the Project site. BKF’s survey crew will then
perform a ground survey of location and
elevation of points throughout the greater
project area. Other key features such as the
location of existing utility features, trees,
gutters, vault covers, and any existing survey
markers will also be captured. All survey data
will then be compiled to produce an existing
conditions base map of the project site for
use in preparing the project’s design.

BKF’s geotechnical subconsultant, LGC
Geotechnical, will perform a geotechnical
site investigation. The site investigation will
determine the soil characteristics of the site
and will also define groundwater levels that
may be present during construction
activities. This information will define the
suitability of the native material for use as
backfill and will also inform the need for
dewatering operations during construction.

LGC will summarize their findings in a
Geotechnical Report for the project.

BKF will then proceed with a peer review of
the future storm drain project information.

The review will be used to confirm the 48-
inch RCP size of the future storm drain. This
will ensure that the Aqua-Swirl unit is
adequately sized and configured for these
future conditions.

BKF will then proceed with the preparation
of the plans, specifications, and engineer’s
construction cost estimate (PS&E). BKF will
prepare submittal packages consisting of
plans, specifications, and estimates at 60%,
90%, and final levels of completion. The PS&E
Documents will be prepared in a format that
conforms to City standards. The engineer’s
estimate will be prepared in parallel with the
plans. Upon receipt of comments from the
City, BKF will incorporate those comments
into the subsequent submittal. The final PS&E
package will be stamped and signed by
BKF’s project manager.

Upon advertising the project for public bid,
BKF will assist the City during the bid process.

This assistance will include preparing written
responses to questions asked by the bidders,
assisting the City with the preparation of
addendums, and evaluating bids received
for the construction of the project.

BKF’s assistance will then continue
throughout the duration of the project’s
construction on an on-call basis. This
assistance may include the review of
submittals, responding to information
requests, and providing engineering services
in support of any newly discovered field
conditions. BKF will prepare as-built plans
based on the contractor’s redlines following
the completion of construction.

City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 14

BKF ENGINEERS
4675 MacArthur Court, Suite 400, Newport Beach, CA 92660 | t. 949.526.8460

SCOPE OF WORK

1. Collect and Review Existing Information
This task provides for the collection and
review of existing information to be provided
by the City. This information may include asbuilt improvement plans, hydrology reports, tract maps, GIS-based topographic
mapping, CCTV/video, and other relevant
information. BKF will review the acquired
information and will use it as applicable
during the progression of the project. BKF will
also perform a field review of the site.

Features that could be critical to the design
will be observed and noted.

2. Field Survey and Mapping
BKF will perform a field survey of the existing
ground and facilities located in and around
the general project area. The survey will be
tied to City and County benchmarks. The
survey will include ground shots of the
existing surfaces as well as obtain the
location and configuration of the existing
catch basin, curb, and gutter features. The
survey will also record the location and
elevation of significant planimetric features
such as existing trees, irrigation features,
other ground covers, utility manholes, utility
boxes, etc. The data collected from the
survey will be used to prepare a topographic
base map of the existing ground surface of
the greater project area.

3. Peer Review and Hydraulic Analysis
BKF will perform a peer review of the future
storm drain project information. The review
will be used to confirm the 48-inch RCP size
of the future storm drain. The review will
include a check of the City’s Drainage
Mater Plan and its associated flow rate
calculations. The review will also include a
hydraulic analysis of the indicated 48-inch
RCP that comprises the future storm drain
project. The review will ensure that the
Aqua-Swirl unit is adequately sized and
configured for the future project. At the
conclusion of this work a Design
Memorandum (DM) will be prepared for
review and approval by the City. The final
DM will be stamped and signed by a
registered engineer licensed in the State of
California.

4. Utility Search and Coordination
BKF will identify public and private utilities
within the Project limits. BKF will then request
utility maps and send out utility verification
and information requests depicting the
proposed improvements. A copy of all utility
notifications and requests will be provided to
the City. BKF will then prepare a utility base
map depicting all existing utilities found
within Project limits based on all collected
information. Utilities that are identified as a
part of this task will be depicted in plan,
profile, and detail sheets prepared during
the preparation of the plans. BKF will also
coordinate with utilities providers identified
for relocations so that relocated utilities will
not interfere with the proposed storm water
treatment improvements.

5. Geotechnical Investigations and
Reporting
BKF’s geotechnical subconsultant, LGC, will
perform a geotechnical investigation of the
site including a review of readily available
background materials, project coordination
and scheduling for subsurface exploration.

LGC will then perform a site reconnaissance
to evaluate the surface conditions at the site
and to locate a proposed boring for
coordination with Underground Services
Alert (USA). LGC will then perform a
subsurface exploration consisting of drilling,
logging, and sampling of small-diameter
borings. The borings will be logged and
sampled and will be used to evaluate the
subsurface conditions. The borings will be
backfilled with earthen tailings. LGC will
prepare an illustrated geotechnical report
for the project that will provide
recommendations for construction activities.

An exploration location map, borings logs,
and laboratory test results will be included in
the report. The report will be signed and
stamped by a California-registered
Geotechnical Engineer and Engineering
Geologist.

City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 15

BKF ENGINEERS
4675 MacArthur Court, Suite 400, Newport Beach, CA 92660 | t. 949.526.8460

6. 60%-Level Plans, Specifications and
Estimates
BKF will proceed with the preparation of the
60%-Level PS&E documents. This task will
include the incorporation of any comments
on the hydraulic analysis DM and the
advancement of preliminary design
drawings.

This task includes the preparation quantity
estimates of the materials and items of work
identified in the 60%-level plans. The quantity
estimate will be itemized along with
corresponding units of measurement. BKF will
then create an engineer’s opinion of
probable construction cost from the quantity
estimate by applying unit cost data to the
estimated quantities as collected by BKF
during recent construction activities or as
published in current cost data manuals.

This task also includes the preparation of the
technical specifications formatted in
accordance with the City’s latest boilerplate
bid package. The technical specifications
will include specifications pertaining to the
material and workmanship required for the
various items of work associated with the
project and based upon the latest edition of
the Standard Specifications for Public Works
Construction (Greenbook). The technical
specifications will include a bid sheet of work
items that will be consistent with those
depicted on the construction drawings.

7. Utility Potholing
BKF anticipates that some utilities may not
be adequately located based on
information included on as-built plans and/or
plans provided by utility companies. In the
event that these utilities represent a potential
design constraint to the configuration of the
proposed infiltration facility, BKF will retain a
qualified contractor to pothole these utilities.

Potholes will be excavated to full depth to
confirm that these locations are clear of
utility conflicts. A total of two (2) potholes are
assumed based on the preliminary design
drawings provided by the City. Pothole
locations will be backfilled with compacted
excavated native material to the subgrade
surface and then patched with concrete or
cold-mix AC plugs following the completion
of the work.

8. 90%-Level Plans, Specifications and
Estimates
This task provides for advancing the plans,
specifications, and cost estimates to a 90%-
level of completion. It is anticipated that five
(5) sheets of plans will be required for the
final plan set including a Title Sheet, a
General Notes Sheet with Construction
Notes, a Plan and Profile Sheet depicting the
various items of construction, a Detail Sheet,
and a sheet for the Aqua-Swirl unit showing
its specific configuration as required for the
project. The plans will be prepared on 24” x
36”, standard City Title-block. This task also
includes the preparation of the final
technical specifications in accordance with
standard city format. And updating the Cost
Estimate. The 90%-level plans will be
complete with the exception of the
incorporation of final City comments.

9. Final Plans, Specifications and Estimates
Upon receipt of comments from the City, BKF
will prepare the Final PS&E package. Final
plans, specifications and estimates will be
submitted to the City. All documents will be
stamped and signed by a registered
engineer licensed to practice in the State of
California. The final submittal package will
be ready for advertisement and for public
bid.

10. Meetings, Coordination, and Project
Management
We anticipate that meetings will be
conducted during all phases of the project
up to the initiation of the bid. These meetings
will be used to coordinate the transfer of
information and data, and to report on the
status of the Project to the City. It is assumed
that all meetings will be virtual. Specific
meetings that may occur include the
following:
• Kickoff Meeting
• 60% Plan Review Meeting
• 90% Plan Review Meeting
• Issue Review Meetings as Needed
City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 16

BKF ENGINEERS
4675 MacArthur Court, Suite 400, Newport Beach, CA 92660 | t. 949.526.8460 BKF will also manage the project through the
timely communication of any critical issues
that arise during the course of the project.

Such communications will include
recommendations on how to address the
issues of concern. During the course of the
project, BKF will provide updates to the
schedule should they become necessary.

BKF will also track and manage the OCTA
ECP grant that has been obtained by the
City. Grant tracking will include monitoring of
the grant’s milestones, preparing grant
extension requests, and communications
with grant managers at OCTA.

11. Bid Support Services
This task will include the services required to
assist the City during the Bid Phase. These
services may include attending the pre-bid
meeting, attending a job walk, responding
to requests for clarifications from prospective
bidders during the bid period, and/or issuing
addenda to the bid package as necessary.

If requested, BKF will tabulate and verify bids
using a spreadsheet and analyze the bid
results to recommend the acceptance or
rejection of bids. BKF will also prepare a
conformed set of PS&E documents that
reflect plan changes that may have
occurred during the bid process. The
conformed PS&E package will then be
issued for construction upon approval by the
City.

12. Construction Support Services
BKF will provide construction support services
as requested by the City. These services
may include, but are not limited to, review of
shop drawings, and review of material
submittals. This task also provides for BKF’s
review and preparation of written responses
to requests for information (RFI’s) that may
be made by the contractor during the
construction process.

Additionally, based on revisions to the plans
that are made and recorded by the
contractor during the course of construction
of the project, BKF will prepare record
drawings of the in-place improvements.

13. Reimbursable Expenses
This task provides for reimbursable expenses
such as travel costs, plotting and printing
costs, messenger service costs, and
equipment costs as required to complete
the Project.

Picture 3: BKF prepared the PS&E documents for the project that installs an Aqua-Swirl unit at the intersection of Galleon Way and Electric Avenue, approximately 250 feet northwest of the 5th St. and Electric Ave. project.

City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 17 08 / STATEMENT OF COMPLIANCE
City of San Clemente
Poche Beach Water Reclamation Diversion Design Project 36

CONTRACT SIGNATORIES
Roger Chung
Associate Vice President
Peter Wijsman
Executive Vice President BUSINESS INFORMATION
• BKF Engineers DIR No. - 1000002096
• LGC Geotechnical DIR No. - 1000014904
• BKF Binding Signatory: Roger Chung, Associate Vice President • BKF Binding Signatory: Peter Wijsman, Executive Vice President • BKF Corporation Type: California C-Corporation
City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 18 EXCEPTIONS This proposal is in strict compliance with the Request for Proposal and Draft Agreement, and no exceptions to either are proposed. 04 / PROJECT ORGANIZATION & STAFFING
City of San Clemente
Poche Beach Water Reclamation Diversion Design Project 16

DANIEL VILLINES, PE

PROJECT MANAGER
Dan offers 33 years of professional civil engineering experience in the technical field of water resources. His experience includes hydraulic and structural analyses for the preparation of design plans, specifications and cost estimates for retaining walls, flood walls, dams, detention basins, water supply, wastewater, and flood control facilities. He is proficient in using advanced 1D and 2D modeling tools to simulate complex water systems with precision, enabling accurate analysis of flood risks and system performance. His ability to identify cost-effective solutions tailored to specific project needs has made him a trusted partner for many cities and flood control districts.

As Project Manager, Dan will be the main point of contact between the City and BKF project team, verifying project requirements, timelines, and verifying that deliverables are met. His day-to-day activities will including working with key staff to develop a tailored approach specific to the City’s needs, monitoring schedules, and managing budget. He will be responsible for implementing overall project strategy, and confirming that the project is in fonromance with the City’s goals and objectives.

SELECT PROJECT EXPERIENCE

EDUCATION
B.S., Civil Engineering,
California State
Polytechnic University
at Pomona

REGISTRATION
Professional Civil
Engineer, CA No.

C55210

TOTAL YEARS

EXPERIENCE
33 years, 5 with firm
CA Department of General Services
Kern River Hatchery Siphon
Improvements Project
Project Manager
City of San Clemente
Stormwater Master Plan
H&H Engineer
City of San Clemente
Prima Deschecha Channel
Improvements Project
Project Manager
Inland Empire Utilities Agency
Stormwater Capture Project
Project Manager
City of Newport Beach
Arches Diversion Project
Project Manager
Irvine Ranch Water District
Lower San Diego Creek Low Flow
Diversion Project
Senior Project Engineer
City of Costa Mesa
Placentia Ave. Stormwater Trash
Capture Project
H&H Engineer
City of Rancho Palos Verdes
Portuguese Bend Landslide
Remediation Project
H&H Engineer
Catalina Island Company
4th of July Cove Flood Control
Improvements Project
Project Manager
City of Colton
Meridian Storm Drainage Project
Project Manager
City of Colton
Stormwater Capture Feasibility Study
Project Manager
City of Rancho Palos Verdes
Peacock Ridge Road Drainage
Improvements Project
Project Manager
City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 04 / PROJECT ORGANIZATION & STAFFING
City of San Clemente
Poche Beach Water Reclamation Diversion Design Project 19

ROGER CHUNG, PE, CFM, QSD/P, ENV SP

PROJECT ENGINEER / HYDROLOGY & HYDRAULICS LEAD
Roger has 25 years of civil engineering experience with expertise in hydrology, hydraulic and structural analysis for the preparation of drainage studies, drainage master plans and the preparation of design plans, specifications, and cost estimates for water supply and flood control facilities. He has been involved in the hydraulic analysis and design of numerous water recharge and flood control projects in San Bernardino, Riverside, Orange, Los Angeles, San Diego, Kern and Ventura Counties.

As Project Engineer, Roger will be responsible for overseeing project design and verifying it meets City standards expectations. Additionally, he will be responible for hydrologic & hydraulic analysis and design.

SELECT PROJECT EXPERIENCE

EDUCATION
B.S., Environmental
Engineering, University
of California at Irvine
B.S., Civil Engineering,
University of California
at Irvine

REGISTRATION
Professional Civil
Engineer, CA No. 65388
Qualified Stormwater
Pollution Prevention
Plan Developer (QSD)
No. 20600
Qualified Stormwater
Pollution Prevention
Plan Practitioner (QSP)
No. 20600
Certified Floodplain
Manager No. US-19-
11182, Association
of State Floodplain
Managers
Envision Sustainability
Professional (ENV SP)
No. 43157

TOTAL YEARS

EXPERIENCE
25 years, 3 with firm
City of San Clemente
Prima Deschecha Channel
Improvements Project
Project Engineer
City of San Clemente
Via Montego/Via Cascadita Storm
Drain System
Project Engineer
Inland Empire Utilities Agency
Stormwater Capture Project
Project Engineer
City of Newport Beach
Arches Diversion Project
Project Engineer
City of Colton
Stormwater Capture Feasibility
Project Engineer
City of San Clemente
Stormwater Master Plan
Project Manager
City of Newport Beach
Storm Drain Master Plan
Project Manager
City of Lancaster
Drainage Master Plan Update
Project Manager
City of Pomona
Stormwater Master Plan
Project Manager
City of Rancho Palos Verdes
Portuguese Bend Landslide
Remediation Project
Project Manager
City of Rancho Palos Verdes
Peacock Ridge Road Drainage
Improvements Project
Project Manager
County of San Bernardino
Carbon Canyon Channel
Improvements Project
Project Manager
County of San Bernardino
Hawker Crawford Channel
Realignment Project
Project Manager
PRINCIPAL-IN-CHARGE City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project

SRAVAN PALADUGU, PE, CFM, QSD/P
QA/QC
Sravan is an experienced water resources engineer with expertise in all project phases, including planning, design, and construction. He has worked on numerous large capital improvement projects, overseeing them from inception to completion. Additionally, Sravan has authored technical studies and is responsible for preparing plans, specifications, and estimates for various lift/ pump station projects and water, sewer, and storm pipeline projects. He has successfully completed multiple Capital Improvement Projects, with construction budgets ranging from $300K to $22M. He has a comprehensive understanding of project elements, including site and utility constraints, environmental impacts, traffic control, easements, constructibility analyses, and public outreach. He also has hands-on experience in overseeing construction aspects.

As QA/QC Manager, Sravan will verify that all deliverables are accurate, reliable, and meet City’s expectations. He will provide rigorous QA/QC to validate data inputs, modeling assumptions, and analytical methodologies to confirm that they align with current standard practices. He will also review deliverables, such as technical reports, maps, and recommendations, to eliminate errors, enhance clarity, and meet project goals.

SELECT PROJECT EXPERIENCE

EDUCATION
M.S., Civil Engineering,
University of Utah, Salt
Lake City
B.S., Civil Engineering,
Osmania University,
India

REGISTRATION
Professional Civil
Engineer, CA
No. 74343
Qualified SWPPP
Developer and
Practitioner, No. 00993
Certified Floodplain
Manager (CFM)

TOTAL YEARS

EXPERIENCE
20 years, 12 with firm
City of Daly City
Storm Drain Master Plan
QA/QC
Town of Hillsborough
30-Year Stormwater Master Plan
Project Manager
San Mateo County Flood & Sea Level
Rise Resiliency District
Bayfront Canal & Atherton Channel
Flood Mitigation
Project Manager
City of Belmont
Stormwater Master Plan
Engineering Manager
Town of Atherton
Drainage Design Criteria Update
QA/QC
Central Valley Flood Protection Board
Central Valley Floodplain Evaluation &
Delineation Program
QA/QC
City of Redwood City
Redwood Shores Levee Improvements
& FEMA Accreditation
QA/QC
County of Marin
Marin City Pond Flood Reduction
QA/QC
City of Lathrop
East Lathrop Water Main Lateral
Upgrades Project
Project Manager
City of Oakland
Oakland Nexus Study
Technical Manager
Town of Moraga
Laguna Creek Restoration -
Preliminary Engineering &
Environmental Planning
Project Manager
04 / PROJECT ORGANIZATION & STAFFING
City of San Clemente
Poche Beach Water Reclamation Diversion Design Project 18 City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 04 / PROJECT ORGANIZATION & STAFFING
City of San Clemente
Poche Beach Water Reclamation Diversion Design Project 22

DAVIS THRESH, PLS
SURVEY
Davis has provided field surveying services, overseen topographic and control surveys, construction staking, and right-of-way mapping for numerous municipal projects in both rural and urban locations. His 36 years of experience in right of way engineering and surveying will prove invaluable to the project’s success.

Davis has been the lead surveyor in numerous projects involving cities, counties, Caltrans, and local municipalities, which required right-of-way requiring surveys, right of way engineering and mapping, and right of way acquisition document preparation. His responsibilities involve project management of all survey projects including scheduling, budget tracking, dispatching, supervision of crews, and coordination of the office and field surveyors.

SELECT PROJECT EXPERIENCE

EDUCATION
A.A., Surveying, Diablo
Valley College, CA

REGISTRATION
Professional Land Surveyor
Engineer, CA No. 44010

TOTAL YEARS

EXPERIENCE
36 years, 36 with firm
California State University at Long
Beach (CSULB)
FCS Storm Drain Renovations
Survey Principal
City of Milpitas
Abbott Avenue Storm Drain
Improvements Project
Survey Manager
City of Fremont
Agua Fria Creek Storm Repair
Survey Principal
SLAC National Accelerator Laboratory
Stanford/SLAC Drainage System
Improvements Project
Survey Lead
SLAC National Accelerator Laboratory
SLAC Storm Drain Repairs Sector 18,
B666, & B005
Survey Principal
Long Beach Utilities Department
Conveyance System Improvements
Survey Lead
City of Santa Cruz
East Cliff Levee Survey
Survey Lead
City of Redwood City
Emerald Hill Road Slope Survey
Survey Lead
West Valley Construction
Miguelito Pump Station
Improvements Project
Survey Lead
West Valley Construction
SJW Williams Pump Station
Improvements Project
Survey Lead
West Valley Construction
McLaughlin Avenue Pump Station
Improvements Project
Survey Lead
San Jose Water Company
Oswald Pipeline Replacement
Survey Lead
City of Redwood City
Redwood Shores Levee Assessment &
Improvements Project
Survey Lead
County of Alameda
Alameda County Flood District Zone 6
Line E Improvements Project
Survey Lead
Santa Clara Valley Transpo. Authority
BART Extension: Milpitas to San Jose -
Flood Risk Assessment
Survey Lead
City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 04 / PROJECT ORGANIZATION & STAFFING
City of San Clemente
Poche Beach Water Reclamation Diversion Design Project 23

ROBIN HAYES, PE
PS&E
Robin Hayes has over 16 years of civil engineering experience in the field of water resources. Her technical experience includes hydrology and hydraulic analysis for the preparation of drainage studies and the preparation of design plans, specifications, and cost estimates for detention basins, channels, catch basins, storm drains and support facilities. She has considerable experience with the modeling of existing and engineered flows using computer based design programs such as CivilD, AES, HEC-RAS, HEC-HMS, WSPG, and FlowMaster. Robin has been involved in the hydraulic analysis and design of several water resource and flood control projects in San Bernardino, Riverside, Orange and Los Angeles Counties.

SELECT PROJECT EXPERIENCE

EDUCATION
B.S., Civil Engineering,
University of California
at Irvine

REGISTRATION
Professional Civil
Engineer, CA No. 72337

TOTAL YEARS

EXPERIENCE
16 years, 4 with firm
CA Department of General Services
Kern River Hatchery Siphon
Improvements Project
Project Engineer
City of Colton
Meridian Storm Drainage Project
Project Engineer
City of Irvine
Hicks Canyon Wash H&H Study
Project Engineer
City of Irvine
Hicks Canyon Channel Restoration
Project Engineer
City of Newport Beach
Galaxy Drive Storm Drain Repair
Project Engineer
City of Lancaster
J-1 Channel Improvements
Project Engineer
City of Chino
Benson Avenue Storm Drain Extension
Project Engineer
City of Torrance
Del Amo Storm Drain Channel
Project Engineer
Gerson Bakar & Associates
Park Newport Apartments Storm
Drain Rehabilitation
Project Engineer
Los Alisos Ranch Company, LLC
Sublett I-405 Drainage Evaluation
Project Engineer
Monarch Bay Association
MBA Hydrology Study
Project Engineer
CGV Coto, LLC
Legacy at Coto CLOMR & Peer Review
Project Engineer
MPV Investment Group
1648 - 1652 Storm Drain Realignment
Project Engineer
Jedson Engineering, Inc.

Highlander Solar Farm Rainfall Runoff
Drainage Study
Project Engineer
City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project 04 / PROJECT ORGANIZATION & STAFFING
City of San Clemente
Poche Beach Water Reclamation Diversion Design Project 28

DENNIS BORATYNEC, GE, PE

GEOTECHNICAL
Dennis has over 25 years of geotechnical consulting experience and has been involved in numerous project types in Southern California including residential, commercial, retail, transportation, and public works. Dennis’s expertise includes:
evaluation of slope stability, foundation capacity, liquefaction, ground settlement and providing cost-effective ground improvement alternatives. He has led several complex projects including the mitigation of severe soil liquefaction potential through the use of stone columns and design of wick drain layouts to accelerate required alluvial soil settlement prior to development. Dennis has extensive experience in hillside grading, flat land grading, distress evaluations, and reviews.

SELECT PROJECT EXPERIENCE

EDUCATION
M.S., Geoenvironmental
Engineering, University
of Alberta
B.S., Civil Engineering,
University of Alberta

REGISTRATION
Professional
Geotechnical Engineer,
CA No. 2770
Professional Civil
Engineer, CA No. 60716

TOTAL YEARS

EXPERIENCE
28 years, 14 with LGC
City of San Clemente
Reservoir No. 4 Improvements
Geotechnical Lead
City of San Clemente
Treatment Plant Building N
Improvements Project
Geotechnical Lead
City of San Clemente
Avenida Columbo Sewer Lift Station
Protection Project
Geotechnical Lead
City of San Clemente
Fuel Island Cover & Treatment Plant
Geotechnical Lead
City of San Clemente
Avenida San Pablo Pressure Reducing
Station Project
Geotechnical Lead
City of San Clemente
Camino Vera Cruz and Avenida Vista
Hermosa Water Line Replacement
Geotechnical Lead
City of San Clemente
Del Cabo Street Water Line
Replacement Project
Geotechnical Lead
City of San Clemente
Via Bellota Sewer Upgrade
Geotechnical Lead
City of San Clemente
Calle Amable Storm Drain Repair
Geotechnical Lead
City of Seal Beach
5th Street at Electric Avenue Stormwater Treatment Project

CONTACT

CHRIS RIDEOUT
949.526.8462
[email protected]

CONTACT

DAN VILLINES
949.322.8195
[email protected]

City of Seal Beach Master Approved: 4/24/26
3224469v1

EXHIBIT C

TERMS FOR COMPLIANCE WITH CALIFORNIA LABOR

LAW REQUIREMENTS

1. This Agreement calls for services that, in whole or in part, constitute “public works” as defined in Division 2, Part 7, Chapter 1 (commencing with Section 1720) of the California Labor Code (“Chapter 1”). Further, Consultant acknowledges that this Agreement is subject to (a) Chapter 1 and (b) the rules and regulations established by the Department of Industrial Relations (“DIR”) implementing such statutes. Therefore, as to those Services that are “public works”, Consultant shall comply with and be bound by all the terms, rules and regulations described in 1(a) and 1(b) as though set forth in full herein.

2. California law requires the inclusion of specific Labor Code provisions in certain contracts. The inclusion of such specific provisions below, whether or not required by California law, does not alter the meaning or scope of Section 1 above.

3. Consultant shall be registered with the Department of Industrial Relations in accordance with California Labor Code Section 1725.5, and has provided proof of registration to City prior to the Effective Date of this Agreement. Consultant shall not perform work with any subcontractor that is not registered with DIR pursuant to Section 1725.5. Consultant and subcontractors shall maintain their registration with the DIR in effect throughout the duration of this Agreement. If Consultant or any subcontractor ceases to be registered with DIR at any time during the duration of the project, Consultant shall immediately notify City.

4. Pursuant to Labor Code Section 1771.4, Consultant’s Services are subject to compliance monitoring and enforcement by DIR. Consultant shall post job site notices, as prescribed by DIR regulations.

5. Pursuant to Labor Code Section 1773.2, copies of the prevailing rate of per diem wages for each craft, classification, or type of worker needed to perform the Agreement are on file at City Hall and will be made available to any interested party on request.

Consultant acknowledges receipt of a copy of the DIR determination of such prevailing rate of per diem wages, and Consultant shall post such rates at each job site covered by this Agreement.

6. Consultant shall comply with and be bound by the provisions of Labor Code Sections 1774 and 1775 concerning the payment of prevailing rates of wages to workers and the penalties for failure to pay prevailing wages. Consultant shall, as a penalty to City, forfeit $200.00 for each calendar day, or portion thereof, for each worker paid less than the prevailing rates as determined by the DIR for the work or craft in which the worker is employed for any public work done pursuant to this Agreement by Consultant or by any subcontractor.

City of Seal Beach Master Approved: 4/24/26
3224469v1

7. Consultant shall comply with and be bound by the provisions of Labor Code Section 1776, which requires Consultant and each subcontractor to: keep accurate payroll records and verify such records in writing under penalty of perjury, as specified in Section 1776; certify and make such payroll records available for inspection as provided by Section 1776; and inform City of the location of the records.

8. Consultant shall comply with and be bound by the provisions of Labor Code Sections 1777.5, 1777.6 and 1777.7 and California Code of Regulations, Title 8, Section 200 et seq. concerning the employment of apprentices on public works projects. Consultant shall be responsible for compliance with these aforementioned Sections for all apprenticeable occupations. Prior to commencing work under this Agreement, Consultant shall provide City with a copy of the information submitted to any applicable apprenticeship program.

Within 60 days after concluding work pursuant to this Agreement, Consultant and each of its subcontractors shall submit to City a verified statement of the journeyman and apprentice hours performed under this Agreement.

9. Consultant shall not perform work with any subcontractor that has been debarred or suspended pursuant to California Labor Code Section 1777.1 or any other federal or state law providing for the debarment of contractors from public works. Consultant and subcontractors shall not be debarred or suspended throughout the duration of this Contract pursuant to Labor Code Section 1777.1 or any other federal or state law providing for the debarment of contractors from public works. If Consultant or any subcontractor becomes debarred or suspended during the duration of the project, Consultant shall immediately notify City.

10. Consultant acknowledges that eight hours labor constitutes a legal day’s work.

Consultant shall comply with and be bound by Labor Code Section 1810. Consultant shall comply with and be bound by the provisions of Labor Code Section 1813 concerning penalties for workers who work excess hours. Consultant shall, as a penalty to City, forfeit $25.00 for each worker employed in the performance of this Agreement by Consultant or by any subcontractor for each calendar day during which such worker is required or permitted to work more than eight hours in any one calendar day and 40 hours in any one calendar week in violation of the provisions of Division 2, Part 7, Chapter 1, Article 3 of the Labor Code. Pursuant to Labor Code Section 1815, work performed by employees of Consultant in excess of eight hours per day, and 40 hours during any one week shall be permitted upon public work upon compensation for all hours worked in excess of eight hours per day at not less than one and one-half times the basic rate of pay.

11. California Labor Code Sections 1860 and 3700 provide that every employer will be required to secure the payment of compensation to its employees. In accordance with the provisions of California Labor Code Section 1861, Consultant hereby certifies as follows:
“I am aware of the provisions of Section 3700 of the Labor Code which require every employer to be insured against liability for workers’ compensation or to undertake self-insurance in accordance with the provisions of that code, and I will comply with such provisions before commencing the performance of the work of this contract.”
City of Seal Beach Master Approved: 4/24/26
3224469v1

12. For every subcontractor who will perform work on the project, Consultant shall be responsible for such subcontractor’s compliance with Chapter 1 and Labor Code Sections 1860 and 3700, and Consultant shall include in the written contract between it and each subcontractor a copy of those statutory provisions and a requirement that each subcontractor shall comply with those statutory provisions. Consultant shall be required to take all actions necessary to enforce such contractual provisions and ensure subcontractor’s compliance, including without limitation, conducting a periodic review of the certified payroll records of the subcontractor and upon becoming aware of the failure of the subcontractor to pay his or her workers the specified prevailing rate of wages.

Consultant shall diligently take corrective action to halt or rectify any failure.

13. To the maximum extent permitted by law, Consultant shall indemnify, hold harmless and defend (at Consultant’s expense with counsel reasonably acceptable to City) City, its elected and appointed officials, officers, employees, agents, servants, those City agents serving as independent contractors in the role of City officials, and volunteers from and against any demand or claim for damages, compensation, fines, penalties or other amounts arising out of or incidental to any acts or omissions listed above by any person or entity (including Consultant, its subcontractors, and each of their officials, officers, employees, agents and servants) in connection with any work undertaken or in connection with the Agreement, including without limitation the payment of all consequential damages, attorneys’ fees, and other related costs and expenses. All duties of Consultant under this Section shall survive the termination of the Agreement.

Agenda Item F

AGENDA STAFF REPORT
DATE: September 28, 2026
TO: Honorable Mayor and City Council
THRU: Patrick Gallegos, City Manager
FROM: Iris Lee, Director of Public Works
SUBJECT: Approving and Awarding Agreement for Professional Services Agreement to Local Agency Engineering
Associates, Inc. for Interagency Support Services
________________________________________________________________ SUMMARY OF REQUEST:

That the City Council adopt Resolution 7822:

1. Approving and awarding a Professional Services Agreement to Local Agency Engineering Associates, Inc. (LAE Associates, Inc.) for Interagency Support Services pursuant to the exemption from competitive bidding requirements set forth in Seal Beach Municipal Code (SBMC) Section

3.20.025(C) for professional services, for a one-year term in the not-toexceed amount of $30,000 pursuant to the Proposal submitted by LAE Associates, Inc. dated August 6, 2026; and,

2. Authorizing the City Manager, or his designee, to extend the original term by up to three one-year extensions for the not-to-exceed amount of $30,000 for each extension; and,

3. Authorizing the City Manager, or his designee, to execute the Agreement with LAE Associates, Inc. on behalf of the City and any amendments or extensions thereafter; and,

4. Authorizing the City Manager, or his designee, to approve additional work requests for interagency support services up to $10,000 up to the cumulative not-to-exceed amount of $40,000 for original term and each of the three one-year extensions thereafter.

BACKGROUND AND ANALYSIS:

All cities must navigate interagency coordination and regulatory compliance, and regardless of a city’s size or the amount of funding available, the responsibility to