Protecting the Bay for a Sustainable Future
Have you ever wondered where used water (“wastewater”) goes after it leaves your home? Did you know that it eventually reaches the San Francisco Bay? It first travels through a series of sewer pipes and pumps called a sewer collection system and then gets treated at the Wastewater Treatment Plant before it is safe to flow into the Bay.
The Clean Water Program is a comprehensive plan to upgrade the aging wastewater collection and treatment system with advanced infrastructure that will provide reliable services for years to come. The Wastewater Treatment Plant components of the Clean Water Program are a joint effort between the City of San Mateo and City of Foster City/Estero Municipal Improvement District (EMID). The City of Foster City is a partial owner of the Wastewater Treatment Plant. The Goals of the Clean Water Program are to:
Replace aging infrastructure and facilities
Build wet weather sewer system capacity assurance to prevent overflows
Meet current and future regulatory requirements
Align with the City of San Mateo and Foster City's sustainability goals
Read Wastewater: The Basics to learn all about San Mateo’s sewer collection system and Wastewater Treatment Plant!
Please visit the Underground Flow Equalization System page for important information on this phase of the Clean Water Program.
Underground Flow Equalization System – Neighborhood Update, May 21
On May 21, Clean Water Program staff hosted a neighborhood meeting to update residents about the Underground Flow Equalization System and the draft environmental impact report for this project. The meeting featured a presentation and a Q&A session. The presentation can be viewed here.
Clean Water Program Neighborhood Meeting, May 2
On May 2, Clean Water Program staff hosted a neighborhood meeting to update residents about upcoming work to upgrade and expand the wastewater treatment plant. The meeting featured a presentation and a Q&A session. The presentation can be viewed here.
Underground Flow Equalization System Project – Extension of Draft EIR Public Comment Period & New Community Meeting
The City of San Mateo has extended the public comment period for the Draft Environmental Impact Report for the Underground Flow Equalization System Project (a proposed solution to lower the risk of sewer overflows during heavy storms).Read More...
The comment period will now run through May 31, 2019. Written comments should be addressed to San Mateo Public Works Engineering, 330 W. 20th Ave., San Mateo, CA 94403, Attn: Clean Water Program, or emailed to info@CleanWaterProgramSanMateo.org.
**Initial notices included an incorrect email address. If you previously submitted comments to Heather Waldrop, please resubmit them to info@CleanWaterProgramSanMateo.org.**
Written comments should be received by 5:00 p.m. on May 31, 2019.
The report is available for public download at here. Hard copies are also available at City Hall, the San Mateo Main Library, and the Hillsdale Branch of the San Mateo Public Library.
Community Meeting at 7:00 pm on May 21
On May 21, the Clean Water Program will host a community meeting about the Underground Flow Equalization System Draft Environmental Impact Report, with time for questions and answers.Read More...
The meeting will be held at 7:00 p.m. at the San Mateo County Event Center, Event Pavilion. Enter at 1346 Saratoga Dr. Park near Gate 8, follow signage to Event Pavilion. Parking is complimentary.
Public Review and Comment Period on Environmental Report Extended
The City prepared a Draft Environmental Impact Report (Draft EIR) to review the potential environmental impacts associated with the Underground Flow Equalization System Project (UFES Project). Prior to preparing the Draft EIR, the City conducted a 40-day public scoping effort to solicit comments on the scope of the EIR. More information about the UFES Project can be found here.Read More...
The Draft EIR is now available for public review and comment through May 31, 2019.
A digital copy of the Draft EIR is available for download at the links provided below. Hard copies are available for viewing at the following locations:
- City Hall, 330 West 20th Avenue
- San Mateo Main Library, 55 West 3rd Avenue
- Hillsdale Branch – San Mateo Public Library, 205 W. Hillsdale Boulevard
Please send your comments to:
City of San Mateo Public Works Engineering 330 W. 20th Avenue, San Mateo, CA 94403, Attention: Clean Water Program, or emailed to info@CleanWaterProgramSanMateo.org.
If you previously submitted comments to Heather Waldrop, please kindly re-send them to firstname.lastname@example.org.
The City Council meeting will include a public hearing on the Special Use Permit discussed earlier at the June 12 Planning Commission meeting. The City Council will vote on the approval of the Special Use Permit at this meeting. The City Council will also vote on the approval of an addendum to the Program Environmental Impact Report.
The City of San Mateo Clean Water Program invites potential construction bidders, construction management consultants, labor compliance firms, safety management consultants, specialty inspection firms, and companies specializing in materials testing and laboratory services that may be interested in responding to upcoming opportunities under the City of San Mateo’s Clean Water Program.
Symposium topics will include the following:
- Overview of the Clean Water Program
- Discussion of upcoming Requests for Proposals for professional services
- Overview of Construction Contract Bid Packages for the wastewater collection system and treatment plant
- Procurement schedule for professional services and construction bid advertisements
Please RSVP to Chris Bessa at email@example.com.
For more information, please email or call Chris Bessa at firstname.lastname@example.org, 510-387-5498.
The Clean Water Program will host a public meeting to provide information and receive public input on the Underground Flow Equalization System project – formerly called the In-System Storage Facility.
The Underground Flow Equalization System helps eliminate the potential for sanitary sewer overflows during extreme storms and is part of the City’s Clean Water Program, a 10-year effort to improve and repair the aging sewer collection and treatment system.
In compliance with the California Environmental Quality Act, the City is preparing an Environmental Impact Report and is seeking public input on what factors to study. The October 2, 2018 meeting is one way for the public to learn more about the Underground Flow Equalization System project and provide input that the city will consider during preparation of the EIR. During storms, rainwater enters the sewer system through cracks and other defects. The amount of rainwater can overwhelm the system’s current capacity, resulting in overflows at the wastewater treatment plant and at locations around the city, such as manholes. These overflows containing a mixture of rainwater and untreated sewage are a danger to human health and the environment because they contaminate streets, creeks, lagoons, beaches and the San Francisco Bay.
The approximately 5-million gallon underground holding structure is proposed to be located in the eastern portion of the San Mateo County Event Center parking lot off Saratoga Drive. This location was selected by the City Council in 2017 after a lengthy series of public meetings and hearings. When the sewer system becomes overwhelmed during heavy rains, the facility will serve as a temporary holding area, generally for 24 hours or less, until the mixture of rainwater and sewage can be treated at the plant. This allows the wastewater treatment plant to “catch up” with the high flows. The structure will also include advanced odor control features, such as air-tight vaults and carbon filters, as well as mechanisms to flush and clean the structure. The design of the project is sixty percent complete, and more details about construction schedule and cost will be released when they are available.
Please click here for more information and answers to frequently asked questions.
All comments must be submitted by October 22, 2018.
Comments also can be submitted via email to email@example.com or regular mail:
City of San Mateo
Clean Water Program
Attention: Heather Waldrop
330 W. 20th Avenue
San Mateo, CA 94403
The Clean Water Program will provide a program update to City Council. As part of this update, staff will share information on the status of the collection system and WWTP design projects, schedule of construction activities, overview of the financial strategies adopted to fund the program, and mitigation efforts taken to address the current competitive market conditions.