Sanitary Sewer Master Plan Update

Location:	California
Posted:	Apr 23, 2026
Due:	May 19, 2026
Agency:	City of San Mateo
Type of Government:	State & Local
Category:	C - Architect and Engineering Services - Construction R - Professional, Administrative and Management Support Services Z - Maintenance, Repair or Alteration of Real Property
Publication URL:	To access bid details, please log in.

Bid Title:	Sanitary Sewer Master Plan Update
Category:	ALL OPEN RFPs
Status:	Open

Description:

The City is requesting proposals from qualified engineering firms (Consultant) to provide professional engineering services for the Sanitary Sewer Master Plan Update.

Please note it is the proposer's responsibility to check back on the website for any addenda that may have been issued.

Publication Date/Time:

3/31/2026 3:00 PM

Closing Date/Time:

5/19/2026 4:00 PM

Contact Person:

Tom Williams, Engineering Manager Email: publicworks@cityofsanmateo.org

Attachment Preview

REQUEST FOR PROPOSALS

City of San Mateo

Public Works Department

Sanitary Sewer Master Plan Update

CITY OF SAN MATEO, CALIFORNIA

March 2026

CITY OF SAN MATEO

Public Works Department

330 West 20th Avenue

San Mateo, CA 94403

650-522-7300

TABLE OF CONTENTS

I. BACKGROUND AND INTRODUCTION

II. SCOPE OF SERVICES

III. PROPOSAL

A. SUBMITTAL COVER FORM AND COVER LETTER

B. PROJECT APPROACH AND PROPOSED SCOPE OF WORK

C. EXPERIENCE AND QUALIFICATIONS

D. TEAM ORGANIZATIONAL STRUCTURE

E. RESUMES AND QUALIFICATIONS OF PROPOSED PERSONNEL

F. FEE SCHEDULE

G. CONFLICT OF INTEREST:

H. TERMS AND CONDITIONS:

IV. AGREEMENT AND PAYMENT

A. AGREEMENT

B. PAYMENT

V. SUBMISSION OF THE PROPOSAL

VI. SELECTION PROCESS

VII. SELECTION TIMELINE

VIII. DOCUMENTS AND QUESTIONS

IX. ATTACHMENTS:

March 2026

On-Call Consultant Services RFP

Page 2 of 13

REQUEST FOR PROPOSALS

City of San Mateo, CA

Public Works Department

On-Call Consultant Services

I. BACKGROUND AND INTRODUCTION

The City of San Mateo (City) is currently under a Regional Water Quality Control Board (RWQCB) Cease

and Desist Order (CDO) requiring improvements to its collection and treatment systems to eliminate

sanitary sewer overflows and unauthorized discharges. The Clean Water Program (CWP) was established

to replace aging infrastructure, enhance reliability, reduce inflow and infiltration, provide capacity for wet

weather flows, and enhance the treatment processes in the City’s system. The CWP is expected to be

completed by the end of fiscal year 26-27, and a new master planning effort is needed to determine

existing deficiencies in the system, look at future capacity needs, and provide a complete sewer model for

the City’s ongoing needs for analysis of development impacts.

San Mateo’s wastewater collection system includes a network of 234 miles of pipe, 5,555 sewer manholes,

and 26 sewer pump stations, divided into five major sewer basins labeled A, B, C, D, and E (refer to Exhibit

A). To rehabilitate all sewer infrastructure, the City of San Mateo has an overall rehabilitation schedule,

which shows a rotating schedule of the five basins’ different phases (i.e. CCTV, Evaluation, Design, and

Rehabilitation).

The City is requesting proposals from qualified engineering firms (Consultant) to provide professional

engineering services for the Sanitary Sewer Master Plan Update (Master Plan Update). The final

deliverable will include a prioritized short- and long-term Capital Improvement Program (CIP) plan with

detailed descriptions, planning-level cost estimates, and specific recommended order of implementation.

An analysis of the current funding mechanisms and how to maximize existing funding will also be part of

this Master Plan Update, as well as recommendations for developing long-term, sustainable funding

strategies to maintain the City’s sanitary sewer system infrastructure based on a review of the state of

the practice in California.

Proposals shall be submitted to Tom Williams no later than 4:00 P.M. on Tuesday, May 5, 2026. Each

proposer shall submit copies of the proposal(s) in accordance with Section III, “Proposal,” of this notice.

II. SCOPE OF SERVICES

The following Scope of Services describes the specific tasks to be performed by the Consultant. If the

Consultant believes that the project can be enhanced in any way by the addition of other tasks or the

deletion of any specified tasks, such information should be included in the proposal.

Task 1 – Project Management and Coordination

This task will include project monitoring and administration, preparation of meeting agendas and

minutes, attendance at meetings, preparation of progress and cost summaries, and other QA/QC

activities:

March 2026

On-Call Consultant Services RFP

Page 3 of 13

Kickoff Meetings

The Consultant will conduct a kickoff meeting with City staff to discuss the project scope,

approach, schedule and assumptions, communications protocol, and data needs for the Sewer

Master Plan.

Progress Meetings

In addition to frequent contact via email and telephone, Consultant will participate in periodic

progress meetings with the City to discuss progress to date, findings, and outstanding issues.

Deliverables:

 Agendas and meeting minutes from the kick-off meeting and project progress meetings

 Monthly invoices and project progress reports

Task 2 – Data Collection and Review

Review City’s sewer system information, including:

 Relevant reports, studies, master plans, maps, facility information, and other required data.

 Sewer System Maps.

 Interview of engineering and maintenance staff, and tour of critical system infrastructure.

 Capital Improvement Program (CIP).

 Pump station as-built drawings, operating information, and SCADA data.

 Clean Water Program documentation, project as-built drawings, and current design and

construction project drawings.

 Wastewater Treatment Plant (WWTP) flow and processing data, available operations and

maintenance documentation, and ongoing study and analysis documentation assessing

plant capacity.

 Available customer billing or recent water use data.

 Maintenance logs, maintenance management system data, sewer blockages, and sanitary

sewer overflow records.

 Any smoke test, inspection, and video inspection reports and data.

 Review of current sewer model data.

 Proposed or planned development projects, and potential growth projections to be included

in the Sewer Master Plan.

- Meet with Planning Department staff to discuss planning issues and expected zoning

changes, and obtain pertinent land use planning maps, data, and documents that

provide required information.

- Meet with Development Review Board staff to discuss current and upcoming

development projects under review, to better understand potential impacts to the

system.

March 2026

On-Call Consultant Services RFP

Page 4 of 13

- Develop loading information for the Foster City, Hillsborough, County of San Mateo, and

College of San Mateo sewer districts discharging into the City’s collection System. This

information may be available from the individual district sewer master planning

documentation, but additional investigation and interviews of district staff may be

required.

Deliverables:

 Key findings, listings, and descriptions of available information, and analysis of land use

planning criteria.

Task 3 – Flow Monitoring

 Develop a flow monitoring plan for the sewer system. The monitoring plan will be designed

to isolate major sewer basins and subbasins in the system and confirm flows in major trunk

sewers.

 Confirm the locations are appropriate for monitoring from the standpoint of hydraulic

conditions, safety, and access.

 Optional – Calibrate and maintain the flow meters and rain gauges during the rainy season.

 Optional – Review the flow monitoring data during the flow monitoring period to ensure

data quality and consistency.

Deliverables:

 Technical Memo detailing the basis of approach and implementation strategy for effective

flow monitoring, including maps.

 Optional – Draft and Final flow monitoring reports.

Task 4 – Hydraulic Model Development

 Develop design criteria to be used to estimate wastewater flows, including wastewater flow

factors for residential and non-residential land uses, diurnal base wastewater flow patterns,

and infiltration/inflow (I/I) parameters.

 Develop a hydraulic model to quantify flows in the sewer system and identify capacity

deficiencies and improvement needs.

 Review existing parcel, customer billing and water use data, land use type, number of

dwelling units, etc. to determine if the information is sufficient to estimate existing

wastewater flows.

 Estimate future flows based on Task 2 data for development and potential growth projection

projects to be included in the Sewer Master Plan.

 Assess potential capacity constraints under the model loads developed.

 Calibrate the hydraulic model and compare the dry weather and wet weather flow

hydrographs with the flow monitoring data and SCADA data.

 Optional – Assist the City in obtaining the necessary model software for City use.

- Evaluate and propose the model software for City consideration.

- Acquisition of the model software on behalf of the City.

March 2026

On-Call Consultant Services RFP

Page 5 of 13

This is the opportunity summary page. It provides an overview of this opportunity and a preview of the attached documentation.

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Sanitary Sewer Master Plan Update

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