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News Archive

UFES Schedule Update – January 2, 2024

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UFES Schedule Update – December 5, 2023

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UFES Schedule Update – October 2, 2023

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CWP Project Update – September 15, 2023

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UFES Schedule Update – September 5, 2023

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CWP Project Update – September 4, 2023

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UFES Construction Update – August 16, 2023

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CWP Project Update – August 10, 2023

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WWTP Project Update – August 9, 2023

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UFES Project Update – August 1, 2023

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UFES Schedule Update – July 31, 2023

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UFES Traffic Update – July 26, 2023

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UFES Traffic Update – July 12, 2023

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UFES Traffic Update – June 29, 2023

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UFES Work Hour Update – June 22, 2023

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UFES Schedule Update – June 5, 2023

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UFES Work Hour Update – May 11, 2023

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UFES Project Update – May 8, 2023

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UFES Schedule Update – May 1, 2023

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UFES Traffic Update – April 27, 2023

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UFES Work Hour Update – April 25, 2023

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UFES Traffic Update – April 24, 2023

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UFES Schedule Update – April 3, 2023

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UFES Work Hour Update – March 31, 2023

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UFES Project Update – March 30, 2023

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UFES Work Hour Update – March 17, 2023

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UFES Schedule Update – March 6, 2023

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UFES Work Hour Update – February 28, 2023

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UFES Work Hour Update – February 14, 2023

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UFES Schedule Update – February 6, 2023

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Clean Water Program Project Update – February 2, 2023

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UFES Project Update – January 27, 2023

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UFES Work Hour Update – January 17, 2023

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UFES Schedule Update – January 9, 2023

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UFES Work Hour Update – January 9, 2023

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UFES Schedule Update Notification – January 3, 2023

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UFES Schedule Update – December 27, 2022

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UFES Work Hour Update – December 27, 2022

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UFES Work Hour Update – December 19, 2022

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UFES Work Hour Update – December 15, 2022

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UFES Schedule Update – December 12, 2022

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UFES Work Hour Update – December 8, 2022

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Clean Water Program Newsletter – November 30, 2022

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UFES Schedule Update – November 28, 2022

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UFES Work Hour Update – November 16, 2022

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UFES Work Hour Update – November 11, 2022

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UFES Work Hour Update – November 4, 2022

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UFES Work Hour Update – November 3, 2022

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UFES Schedule Update – October 31, 2022

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UFES Work Hour Update – October 26, 2022

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UFES Traffic Update – October 21, 2022

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UFES Project Update – October 19, 2022

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UFES Traffic Update – October 17, 2022

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UFES Schedule Update – October 17, 2022

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UFES Work Hour Update – October 7, 2022

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UFES Schedule Update – October 3, 2022

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UFES Traffic Update – September 30, 2022

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UFES Work Hour Update – September 26, 2022

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UFES Schedule Update – September 19, 2022

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UFES Traffic Update – September 16, 2022

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UFES Work Hour Update – September 16, 2022

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CWP Project Newsletter – September 14, 2022

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UFES Project Update – September 14, 2022

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UFES Project Update – September 13, 2022

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UFES Work Hour Update – September 12, 2022

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UFES Work Hour Update – September 6, 2022

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UFES Schedule Update – September 6, 2022

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UFES Schedule Update – August 23, 2022

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UFES Work Hour Update – August 18, 2022

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UFES Work Hour Update – August 18, 2022

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UFES Work Hour Update – August 11, 2022

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UFES Schedule Update – August 8, 2022

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UFES Work Hour Update – August 4, 2022

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UFES Work Hour Update – July 28, 2022

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UFES Work Hour Update – July 25, 2022

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UFES Schedule Update – July 25, 2022

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UFES Project Update – July 15, 2022

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UFES Work Hour Update – July 13, 2022

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UFES Work Hour Update – July 11, 2022

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UFES Work Hour Update – July 11, 2022

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UFES Schedule Update – July 11, 2022

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UFES Work Hour Update – July 6, 2022

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UFES Traffic Update – June 30, 2022

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UFES Schedule Update – June 27, 2022

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UFES Work Hour Update – June 23, 2022

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UFES Work Hour Update – June 13, 2022

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UFES Schedule Update – June 13, 2022

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UFES Work Hour Update – June 10, 2022

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UFES Project Update – June 6, 2022

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UFES Schedule Update – May 31, 2022

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UFES Traffic Update – May 25, 2022

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UFES Work Hour Update – May 24, 2022

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UFES Schedule Update – May 16, 2022

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UFES Work Hour Update – May 13, 2022

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UFES Work Hour Update 2 – May 12, 2022

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UFES Work Hour Update – May 12, 2022

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UFES Work Hour Update – May 9, 2022

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UFES Construction Update – May 5, 2022

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UFES Work Hour Update – May 3, 2022

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UFES Schedule Update – May 2, 2022

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UFES Work Hour Update – May 2, 2022

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UFES Work Hour Update – April 21, 2022

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UFES Schedule Update – April 18, 2022

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UFES Work Hour Update – April 15, 2022

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UFES Work Hour Update – April 11, 2022

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UFES Schedule Update – April 4, 2022

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UFES Work Hour Update – March 29, 2022

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UFES Project Update – March 25, 2022

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UFES Work Hour Update – March 22, 2022

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UFES Schedule Update – March 21, 2022

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UFES Work Hour Update – March 17, 2022

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UFES Schedule Update – March 7, 2022

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UFES Work Hour Update – March 7, 2022

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UFES Schedule Update – February 21, 2022

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UFES Schedule Update – February 7, 2022

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UFES Work Hour Update – February 3, 2022

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UFES Work Hour Update – January 31, 2022

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UFES Work Hour Update – January 19, 2022

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UFES Project Update – January 14, 2022

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UFES Work Hour Update – January 3, 2022

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UFES Construction Update – December 28, 2021

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UFES Construction Update – December 28, 2021

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UFES Work Hour Update – December 22, 2021

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UFES Work Hour Update – December 17, 2021

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UFES Construction Update – December 15, 2021

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UFES Project Update – December 15, 2021

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UFES Construction Update – December 3, 2021

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UFES Work Hour Update – December 3, 2021

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UFES Construction Update – October 14, 2021

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Clean Water Program September 17, 2021 Newsletter

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UFES Project Update – September 16, 2021

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Clean Water Program August 27, 2021 Newsletter

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UFES Project Update – August 13, 2021

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Clean Water Program July 23, 2021 Newsletter

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Clean Water Program July 8, 2021 Newsletter

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UFES Project Update – July 7, 2021

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Clean Water Program June 2, 2021 Newsletter

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UFES Work Hour Update – May 3, 2021

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Clean Water Program April 9, 2021 Newsletter

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UFES Work Hour Update – April 8, 2021

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UFES Construction Update – April 7, 2021

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UFES Project Update – April 2, 2021

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Clean Water Program March 10, 2021 Newsletter

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UFES Project Update – March 3, 2021

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UFES Work Hour Update – February 25, 2021

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UFES Construction Update – February 16, 2021

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UFES Work Hour Update – February 9, 2021

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UFES Work Hour Update – February 5, 2021

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Clean Water Program February 3, 2021 Newsletter

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Clean Water Program January 28, 2021 UFES Newsletter

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Clean Water Program January 27, 2021 UFES Newsletter

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Clean Water Program January 14, 2021 UFES Newsletter

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Clean Water Program hosted a Virtual Public Meeting on December 21, 2020

You can view the video of the meeting by clicking here.

Clean Water Program December 22, 2020 UFES Newsletter

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Clean Water Program December 18, 2020 Newsletter

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Clean Water Program December 18, 2020 UFES Newsletter

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Clean Water Program December 9, 2020 UFES Newsletter

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Clean Water Program December 4, 2020 UFES Newsletter

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Clean Water Program December 2, 2020 UFES Newsletter

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Clean Water Program November 19, 2020 Newsletter

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Clean Water Program November 13, 2020 UFES Newsletter

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Clean Water Program October 13, 2020 Newsletter

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Clean Water Program October 12, 2020 UFES Newsletter

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Wastewater Treatment Plant Virtual Community Meeting was held on June 11, 2020

A virtual community meeting was held to share information on the construction activities for the second phase of the Wastewater Treatment Plant Upgrade and Expansion project and to describe what the community should expect.

You can download the meeting presentation here and view the video of the meeting below.

Clean Water Program August 2020 UFES Newsletter

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Clean Water Program July 2020 Newsletter

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Clean Water Program July 2020 UFES Newsletter

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Clean Water Program June 2020 UFES Newsletter

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Underground Flow Equalization System EIR Approved by City Council

On October 21, 2019, the San Mateo City Council unanimously approved the adoption of the Final Environmental Impact Report for the Underground Flow Equalization System, as well as the associated Special Use Permit and Site Plan and Architectural Review. CWP staff gave a brief informational presentation. For more information, please visit the UFES project page.

Planning Commission Public Meeting – September 24, 2019

On September 24, 2019, the Planning Commission held a public hearing on the Underground Flow Equalization System and the associated Final Environmental Impact Report (FEIR), Site Plan and Architectural Review (SPAR), and Special Use Permit (SUP). At this meeting, staff provided a summary presentation and recommendations to the commission. The Planning Commission voted to recommend the City Council certify the FEIR, adopt the statement of overriding considerations based on the findings for approval, and approve the SPAR and SUP. A public hearing for the recommended certification, adoption, and approvals for the project will be held at the City Council meeting scheduled on October 21 at 7:00 pm at the City Hall Council Chambers.

UPDATE! Additional UFES Final Environmental Impact Report Documents Released

In addition to the Final Environmental Impact Report for the Underground Flow Equalization System Project, two other project documents were released on September 10, 2019: (1) Errata No. 1, which includes 40 additional comments and responses, and (2) the Mitigation Monitoring and Reporting Program, which summarizes the mitigation measures discussed in the EIR and implementation responsibilities. Both can be found on the Final EIR page.

Final UFES Environmental Impact Report Released

The Final Environmental Impact Report for the Underground Flow Equalization System Project is now available. This final version of the document includes responses to written and verbal comments and questions received during the public comment period, which ran from March 6 through May 31, 2019.

The Final EIR is available for download at the Clean Water Program website on our Final Environmental Impact Report page. Hard copies are available at City Hall and the San Mateo Main Library.

The Planning Commission will vote on a recommendation for Final EIR certification, and concurrent Special Use Permit approval, to City Council at its upcoming meeting on September 24, 2019. City Council will vote on certification of the Final EIR, and approval of the concurrent Special Use Permit, at their October 21, 2019 meeting. (Please note – this topic has been moved from the October 7 City Council meeting.)

Planning Commission meetings and City Council meetings are all held at 7:00 pm at City Hall Council Chambers, 330 West 20th Avenue, San Mateo, CA 94403.

Please visit our Underground Flow Equalization System page for additional project details and updates.

San Mateo Breaks Ground on New Wastewater Treatment Plant

Wastewater Treatment Plant Groundbreaking Ceremony
Officials Unite for Sept. 4 San Mateo Groundbreaking – Left to Right, Foster City’s City Manager Jeff Moneda, San Mateo’s Public Works Director Brad Underwood, Hillsborough Vice Mayor Alan Royce, Hillsborough Mayor Shawn Christianson, Foster City Mayor Sam Hindi, San Mateo Mayor Diane Papan, Representatives Anna Eshoo and Jackie Speier, San Mateo Councilmembers Maureen Freschet, Joe Goethals, Eric Rodriguez and Rick Bonilla, and Jim McGrath, Vice Chair, California State Water Resources Control Board.

On Wednesday, Sept. 4, 2019, the City of San Mateo welcomed Representatives Jackie Speier and Anna Eshoo, along with Foster City Mayor Sam Hindi to celebrate the groundbreaking of our new wastewater treatment plant.

The plant is the largest component of the Clean Water Program, a $1 billion initiative launched in 2015 to modernize the San Mateo sewer system, a response to a Cease and Desist Order from the State of California mandating a sewer system upgrade to eliminate sewer overflows from entering the San Francisco Bay.

“These infrastructure improvements are vital to the sustainability and future of San Mateo,” said Mayor Diane Papan. “We greatly appreciate the advocacy of our council and the support of our Senators Dianne Feinstein and Kamala Harris, as well as congressional representatives Jackie Speier and Anna Eshoo, the encouragement from the EPA and our partners in Foster City, who worked on our behalf to support low-cost funding alternatives for the program.”

The new plant will replace an aging plant that saw its last major upgrade in the 1970s. Construction on Phase I of the new plant begins this month.

“We are five successful years into the largest upgrade to our sewer facilities,” said Public Works Director Brad Underwood. “The Clean Water Program is a necessary and timely endeavor that we must deliver on for the sustainability of our City and the health of the San Francisco Bay.”

The new plant will feature a modernized treatment process meeting the program goals to replace the City’s aging infrastructure and comply with regulatory requirements to prevent sewer overflows and fully treat flows at the plant. The new plant also aligns with the City’s sustainability goals; the administration building will be LEED Silver certified and the plant will produce high-quality effluent that is ready for potential water re-use opportunities. The new plant is set to open in 2024.

Underground Flow Equalization System Update to Planning Commission

At the August 27, 2019 Planning Commission meeting, Clean Water Program staff provided an update on the UFES. The UFES project will help to reduce the risk of sewer overflows during heavy storms. The purpose of this UFES Informational Presentation was to familiarize Commission members with important information about the project that has been updated since publication of the Draft Environmental Impact Report in March 2019.

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.

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. 

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).

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. 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

Map of meeting location.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.

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.

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. 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 info@cleanwaterprogramsanmateo.org.

Reminder: Upcoming Public Meetings on the Wastewater Treatment Plant

Residents of San Mateo are invited to attend two upcoming meetings to learn more about the Wastewater Treatment Plant Upgrade and Expansion Project, which is anticipated to begin construction this summer.

  • Monday, April 15: 7 p.m. City Council, Public Hearing on Wastewater Treatment Plant Planning Application Modifications, Council Chambers, 330 W. 20th Avenue, San Mateo
  • Thursday, May 2: 6 p.m. – 8 p.m. Wastewater Treatment Plant Neighborhood Meeting, LEAD Elementary School, LGI Room, 949 Ocean View Avenue, San Mateo. At this meeting, Clean Water Program staff will provide a brief informational presentation, followed by a question-and-answer session.

Reminder: Sewer Lateral Ordinance Meetings

We want to hear from you! As part of the Clean Water Program, City of San Mateo Public Works staff are proposing a revision to the City’s Sewer Lateral Ordinance. Residents are invited to one of two community meetings; Thursday, April 25 from 6-8 p.m. at the Senior Center at 2645 Alameda de las Pulgas, or Saturday, April 27 from 10 a.m.-noon at Beresford Recreation Center, 2720 Alameda de las Pulgas.

At each meeting, staff will present three options for a potential revision to the ordinance. Feedback from these community meetings will inform the proposal to the May 20 City Council Study Session meeting.

For more information, please click here.

Reminder: May 7 Deadline for Public Comments on the Underground Flow Equalization System Environmental Report

The public is invited to review and comment on the Draft Environmental Impact Report for the Underground Flow Equalization System, formerly called the In-System Storage Facility. This project is part of the City’s 10-year program to improve and repair the aging sewer collection and treatment system, and prevent sewer system overflows during heavy rains that threaten the health of city streets, beaches, and waterways, including the San Francisco Bay. The project would be located in the eastern portion of the San Mateo County Event Center Parking Lot.

The Draft EIR is available for public download and review.

Hard copies are available at City Hall, the San Mateo Main Library, and the Hillsdale Branch of the San Mateo Public Library.

A hearing and opportunity for verbal comments was provided at the April 9, 2019 Planning Commission meeting. The project is currently under review by City Planning for a Special Use Permit, which also was discussed at the April 9 meeting.

The deadline to submit comments on the Draft EIR is May 7, 2019.

How to submit comments:

  1. Write to: City of San Mateo Public Works Engineering, 330 W. 20th Avenue, San Mateo, CA 94403, Attention: Clean Water Program
  2. Email: info@CleanWaterProgramSanMateo.org

For more information on the Special Use Permit, please click here.

42nd Ave Pump Station Rehabilitation Complete!

Rehabilitation of the 42nd Avenue Pump Station is considered complete as of Friday, April 12, 2019. This high-priority work is a critical project to help ensure that the existing collection system components continue to function optimally.

The project consisted of three elements: 1) rehabilitation of an underground pump station, 2) replacement of underground electrical conduit, and 3) installation of a new, above-ground standby generator.

Underground Pump Station Rehabilitation
Pump stations are a necessary component of the wastewater collection infrastructure. These pumps keep water moving upward from underground pipes and ultimately to the wastewater treatment plant. Over time, underground pump stations corrode and break down, potentially leading to failure resulting in the sewer overflows we are trying to prevent. The rehabilitation included repairing pipes and valves, as well as recoating the existing wet well and underground vaults. The project also included replacing electrical and instrumentation controls, constructing remote motor control center and transfer switch, and installing new valve access hatches.

Underground Electrical Conduit
Aging and deteriorating electrical conduit was replaced along El Camino Real from 42nd Avenue to 43rd Avenue for the new backup generator across 43rd Avenue. New electrical conduit also was installed along El Camino Real from the pump station and across 43rd Avenue to the new above-ground generator. This work included excavation of existing material, installation of new conduit, backfilling, and final paving.

New Above-Ground Standby Generator
Standby generators automatically come online during outages so that pumps continue to keep wastewater flowing through the collection system. A more compact, diesel-powered standby generator and fuel tank have replaced the aging standby generator. This was more cost-effective and efficient than maintaining the previous generator with available parts. A new generator pad area was constructed, as well as a remote motor control center and transfer switch. The new system includes new switch gear, batteries, and battery chargers.

Work To Begin on State Street in Early May

Crews will begin work in early May on State Street between Highland Avenue and El Camino Real. This project involves the installation of nearly 2,600 feet of new 15-inch diversion pipe.

This project is one in a series that is intended to increase sewer pipe capacity to manage high flows from heavy storms, to help prevent sewer overflows, and to help meet regulatory requirements.

Using hydraulic modeling technology, our engineers identified the need for a new diversion pipe extending from El Camino Real, down State St, then down Highland Ave to Poplar Ave. This upgrade was found to be the most cost-effective solution, and one that minimized disruptions to the community.

For more information, please visit here.

Reminder: April 9 Public Hearing on the Underground Flow Equalization System

The public is invited to review and comment on the Draft Environmental Impact Report for the Underground Flow Equalization System, formerly called the In-System Storage Facility. This project is part of the City’s 10-year program to improve and repair the aging sewer collection and treatment system, and to prevent sewer system overflows during heavy rains that threaten the health of city streets, beaches, and waterways, including the San Francisco Bay. The project would be located in the eastern portion of the San Mateo County Event Center Parking Lot.

The Draft EIR is available for public download and review. Hard copies are available at City Hall, the San Mateo Main Library, and the Hillsdale Branch of the San Mateo Public Library.

You are invited to learn more about the environmental impacts covered in the Draft EIR and provide verbal comments at the April 9, 2019 Planning Commission meeting. The project is currently under review by City Planning for a Special Use Permit, which will also be discussed at the April 9 meeting.

The deadline to submit comments on the Draft EIR is May 7, 2019.

How to submit comments:

  1. Write to: City of San Mateo Public Works Engineering, 330 W. 20th Avenue, San Mateo, CA 94403, Attention: Clean Water Program
  2. Email: info@CleanWaterProgramSanMateo.org
  3. Speak at: April 9 Planning Commission meeting, 7:00 p.m. at City Council Chambers, 330 W. 20th Avenue, San Mateo

For more information on the EIR, and answers to frequently asked questions, please visit the Clean Water Program website. For more information on the Special Use Permit, please click here.

Tuesday, April 9: 7 p.m. Planning Commission Study Session on Underground Flow Equalization System Project and Draft Environmental Impact Report, Council Chambers, 330 W. 20th Avenue, San Mateo

Reminder: Upcoming Public Meetings on the Wastewater Treatment Plant

San Mateo residents are invited to attend two upcoming meetings to learn more about the Wastewater Treatment Plant Upgrade and Expansion Project, which is anticipated to begin construction this summer.

  • Monday, April 15: 7 p.m. City Council, Public Hearing on Wastewater Treatment Plant Planning Application Modifications, Council Chambers, 330 W. 20th Avenue, San Mateo
  • Thursday, May 2: 6 p.m. – 8 p.m. Wastewater Treatment Plant Neighborhood Meeting, LEAD Elementary School, LGI Room, 949 Ocean View Avenue, San Mateo. At this meeting, Clean Water Program staff will provide a brief informational presentation, followed by a question-and-answer session.

Improving Your Sewer System: Community Meetings

We want to hear from you! As part of the Clean Water Program, City of San Mateo Public Works staff are proposing a revision to the City’s Sewer Lateral Ordinance. Residents are invited to one of two community meetings; Thursday, April 25 from 6-8 p.m. at the Senior Center at 2645 Alameda de las Pulgas, or Saturday, April 27 from 10 a.m.-noon at Beresford Recreation Center, 2720 Alameda de las Pulgas.

At each meeting, staff will present three options for a potential revision to the ordinance. Feedback from these community meetings will inform the proposal to the May 20 City Council Study Session meeting.

For more information, please click here.

Work Begins on Highland Avenue this Week

Map of project location.Crews will begin work this week on Highland Avenue between Poplar and State streets. This project involves the installation of nearly 2,600 feet of new 15-inch diversion pipe.

This project is one in series that is intended to increase sewer pipe capacity to manage high flows from heavy storms, to help prevent sewer overflows, and to help meet regulatory requirements.

Using hydraulic modeling technology, our engineers identified the need for a new diversion pipe extending from El Camino Real, down State St, then down Highland Ave to Poplar Ave. This upgrade was found to be the most cost-effective solution, and one that minimized disruptions to the community.

For more information, please click here.

North Idaho Sewer Rehabilitation Project Completed Ahead of Schedule!

As part of the Clean Water Program, the Public Works Department is replacing existing sewer pipes with larger pipes in several areas throughout San Mateo. These improvements will increase the capacity of the sewer system and reduce sewer overflows that occur during storms.

Using hydraulic modeling technology, our engineers identified the sewer pipe in North Idaho Street as being in need of upsizing. The North Idaho line is a primary line that moves flow from the north end of San Mateo to the wastewater treatment plant. Approximately 663 feet of 15-inch pipe was upsized to new, 24-inch pipe. This upgrade was found to be the most cost-effective solution, and one that minimized disruptions to the community.

Cratus, Inc. was contracted by the Clean Water Program to perform this work. The map below shows the project location.

We appreciate residents’ and businesses’ patience and cooperation during the work on this important project!

Draft Environmental Impact Report: Underground Flow Equalization System

The public is invited to review and comment on the Draft Environmental Impact Report for the Underground Flow Equalization System, formerly called the In-System Storage Facility. This project is part of the City’s 10-year program to improve and repair the aging sewer collection and treatment system, and prevent sewer system overflows during heavy rains that threaten the health of city streets, beaches, and waterways, including the San Francisco Bay. The project would be located in the eastern portion of the San Mateo County Event Center Parking Lot.

The Draft EIR is available for public download and review.

Hard copies are available at City Hall, the San Mateo Main Library, and the Hillsdale Branch of the San Mateo Public Library.

You are invited to learn more about the environmental impacts covered in the Draft EIR and provide verbal comments at the April 9, 2019 Planning Commission meeting. The project is currently under review by City Planning for a Special Use Permit, which will also be discussed at the April 9 meeting.

The deadline to submit comments on the Draft EIR is May 7, 2019.

How to submit comments:

  1. Write to: City of San Mateo Public Works Engineering, 330 W. 20th Avenue, San Mateo, CA 94403, Attention: Clean Water Program
  2. Email: info@CleanWaterProgramSanMateo.org
  3. Speak at: April 9 Planning Commission meeting, 7:00 p.m. at City Council Chambers, 330 W. 20th Avenue, San Mateo

Program Update Provided to City Council

On February 19, 2019, the Clean Water Program staff provided a program update to City Council. As part of this update, staff shared 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.

Immediate Action Projects Phase 2 Begins at the Wastewater Treatment Plant

The second phase of work on the Immediate Action Projects related to the Clean Water Program’s wastewater treatment plant upgrades is beginning. A $6.3 million contract for the second phase of the Immediate Action Project, or IAP2, was awarded to Myers & Sons Construction LLC on January 7 upon City Council approval. The IAP2 construction package includes five separate projects that are needed to add backup protection to vulnerable points in the digestion and dewatering and solids handling processes, and to repair effluent piping.

Additional overflow and suction piping, and a third foam suppression pump, will be added to the digesters and digester piping. This additional equipment in the digestion process area will provide the backup and flexibility that the system requires. A third centrifuge system will be added to the dewatering process, which will provide adequate backup to the current centrifuge system.  One large cake pump, which is located in the solids building and transports cake (i.e., dewatered biosolids) to a storage hopper, will be replaced by two smaller cake pumping systems. This improvement will provide appropriately sized pumps and backup to that system. An additional cake hopper that will store all the dewatered biosolids until they can be hauled away will be added immediately outside the solids building. It will include a slide gate, access walkway, and platform. This additional hopper will provide more onsite storage, time between truck trips to dispose of the cake, and resources for operations to maintain other tanks in the digestion process. Lastly, repairs will be made to underground effluent piping and pipe connections.

The project will take approximately 20 months and is expected to be complete in late 2020.

Clean Water Program Earns EPA Infrastructure Loan Invite

The City of San Mateo, in partnership with Foster City, received a major boost from the U.S. Environmental Protection Agency this week as it was invited to apply for a $277 million loan to support the Clean Water Program. 

October 2: Public Scoping Meeting on the Underground Flow Equalization System Project

The Clean Water Program hosted a public meeting to provide information and receive public input on the Underground Flow Equalization System project – formerly called the In-System Storage Facility. To view the presentation from this meeting, click here.

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 heather.waldrop@jacobs.com or regular mail:
City of San Mateo
Clean Water Program
Attention: Heather Waldrop
330 W. 20th Avenue
San Mateo, CA 94403

Wastewater Treatment Plant Upgrade and Expansion Informational Meeting

On August 21, the Clean Water Program hosted a neighborhood meeting to update residents about upcoming work to upgrade and expand the wastewater treatment plant. The meeting was held at 6 p.m. in the LGI Room, Parkside Elementary, 1685 Eisenhower Street, San Mateo. You can view the meeting presentation here.

Sewer Odor Control Testing Begins in Shoreview Parkside Neighborhood

During the week of July 23, the Clean Water Program will be conducting a sewer odor control fan test in the Shoreview Parkside neighborhood. The sewers in this area have a history of odor complaints, and the City is testing a different method to mitigate these odors.

The odor control fan test will involve accessing manholes in the City streets and in front and back yard manholes in City utility easements. A 58-foot truck with the odor control fan equipment will be parked temporarily on Taylor and Eisenhower streets. Additional work trucks will be in the area to dewater certain manholes and sewer lines. Residents may experience minor traffic delays and brief blockages of driveways as the crews conduct this work.

The test will take approximately 4 hours from start to finish, but could take longer, depending on sewer conditions. We encourage residents to avoid indoor water use (toilets, showers, sinks, etc.) during the testing.

We appreciate residents’ cooperation with this work.

42nd Avenue Pump Station Improvements Update

Work on the 42nd Avenue Pump Station rehabilitation began in May and is well under way. Work is expected to be complete in February 2019. Sewer service will not be interrupted during rehabilitation.

To keep the pump station running reliably, the work will include:

  • Replacing pumps, valves, and piping;
  • Recoating underground vaults;
  • Replacing electrical and instrumentation controls;
  • Adding a standby generator at 43rd Avenue and El Camino Real; and
  • Installing electrical conduit in El Camino Real between 42nd and 43rd avenues.

Clean Water Program To Hold Construction Symposium in August

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 chris.bessa@jacobs.com.

For more information, please email or call Chris Bessa at chris.bessa@jacobs.com, 510-387-5498.

July 16 – City Council Hearing on Special Use Permit

On July 16, the City Council included a public hearing on the Special Use Permit for the wastewater treatment plant. The City Council voted to approve the Special Use Permit at this meeting. The City Council also approved an addendum to the Program Environmental Impact Report. To view the presentation, click here.

June 12 – Planning Commission Hearing on Special Use Permit

On June 12, the Planning Commission meeting included a public hearing about the application for a Special Use Permit for the planned wastewater treatment plant upgrade and expansion project. The Commission then voted on its recommendation to the City Council. The wastewater treatment plant project includes changes to the existing facility, and construction of new facilities adjacent to the existing site. Some of the older facilities at the existing treatment plant will be removed or re-purposed. The project includes a pedestrian path around the treatment plant from Dale Avenue to John Lee Dog Park, modifications to the existing landscaping along East 3rd Avenue, and closure of a portion of Detroit Drive.

June 6 – Park and Recreation Commission Meeting

On June 6, Clean Water Program staff presented to the Park and Recreation Commission about the proposed use of three parcels managed by the San Mateo Parks and Recreation Department. These parcels would be used for offsite construction staging and parking areas to support upcoming construction activities related to the upgrade and expansion of the City’s wastewater treatment plant. The three parcels proposed for use are the Dale Avenue undeveloped open space, the Anchor Road passive open space, and a portion of the Anchor Road parking lot. The public was able to comment at this meeting. To view the presentation, click here.

Water Board Renews City’s Permit and Provides Support for the Clean Water Program’s Approach

In early May, the San Francisco Bay Regional Water Quality Control Board (RWQCB) approved renewal of the operating permit for San Mateo’s wastewater treatment plant under the National Pollutant Discharge Elimination System (NPDES). The NPDES is a program under the U.S. Environmental Protection Agency to prevent water pollution. This permit allows the City to discharge treated wastewater into San Francisco Bay.

San Mateo also received overwhelming support from the RWQCB for its Clean Water Program and the wastewater treatment plant improvement project. Three Board members, including the chair, directly acknowledged San Mateo’s early implementation strategy in preparation for future trends in nutrient removal regulations, the Clean Water Program’s innovative approach using state-of-the art technology, and leadership in promoting these water quality improvement strategies. The RWQCB gave its support to San Mateo, and stated it wants to support other agencies who take these types of actions by encouraging and supporting funding for these types of forward-looking projects.

Glendora /Shasta Sewer Relief Work Begins

Map of project location.As part of the Clean Water Program, approximately 2,000 feet of existing sewer pipes along Shasta and Glendora drives will be replaced and upgraded. This project will replace portions of the sewer pipes in City easements in Shasta Drive residents’ backyards or side yards with a new, larger pipe in the street. Improvements on Glendora Drive will occur in the street.

Most of the construction work will take place in the public right-of-way, but the construction contractor will need to access the pipes in easements on affected properties as part of this work. Any disturbances to surface features and landscaping on private parcels will be replaced in kind. In addition, the contractor performing the work will ensure that safety hazards and odors will be mitigated during the work. After work is completed, Shasta Drive will be repaved.

Construction is currently planned to occur from May 2018 to October 2018. Affected residences will be notified prior to the work for coordination of easement access.

This work is crucial for improving the City’s overall infrastructure, and for preventing sewer overflows that occur during heavy rains. The Clean Water Program and the City of San Mateo want to thank all residents for their continued cooperation!

Closed-Circuit TV Inspections and Sewer Line Cleaning Begin Soon

As part of the Clean Water Program and the Department of Public Works’ routine maintenance of the sewer system, inspection crews will be conducting sewer condition assessments in several neighborhoods. Presidio Systems, Inc. has been hired by the City to clean and inspect sewer mains. Some of these locations include utility easements on private property.

This work helps the City understand how to address aging sewer infrastructure, capacity issues, and sanitary sewer overflows.

Inspections will confirm any needed sewer pipe spot repairs, pipe segment replacements, and rehabilitation at various locations throughout San Mateo.

Affected properties will receive advance notice about the work, and work will be conducted between 8 a.m. and 5 p.m., Monday through Friday.

Map of project location.

Map of project location.

Map of project location.

42nd Avenue Pump Station Improvements Begin in May

Map of project location.Work on the 42nd Avenue Pump Station rehabilitation is scheduled to begin in May and is expected to continue until November 2018. Sewer service will not be interrupted during rehabilitation. To keep the pump station running reliably, the work will include:

  • Replacing pumps, valves, and piping;
  • Recoating underground vaults;
  • Replacing electrical and instrumentation controls;
  • Adding a standby generator at 43rd Avenue and El Camino Real; and
  • Installing electrical conduit in El Camino Real between 42nd and 43rd Avenues.

March 5 – Rate Restructuring and Increase Ordinance Public Hearing

At its March 5 meeting, the City Council conducted a public hearing to vote on proposed sewer rate increases and restructuring. The public had an opportunity to provide comments and submit written protests. The rate increases and restructuring were approved by a unanimous vote. They will take effect on July 1, 2018. To view the presentation, please click here. To view the full video of the Council meeting, please click here.

February 20 and March 5: Meetings on Proposed Sewer Rate Increases and Restructuring

As part of the proposed rate increase and restructuring this year, the ordinance pertaining to the proposal was introduced at the City Council meeting on February 20. The ordinance was on the consent calendar, meaning that no presentation was given. Time was available for public comments for items on the consent calendar.

The public review and comment period was open until March 5. At its March 5 meeting, the City Council conducted a Public Hearing to vote on the proposed rate increases and restructuring. There was an opportunity for public comments. Additionally, the meeting was the last opportunity to submit written protests.

If approved, the rate increases will become effective on July 1 for fiscal years 2018-2018 through 2022-2023.

The proposed rate increases and restructuring will allow the City to generate a reliable source of revenue needed to meet increased regulatory requirements; increase system capacity to prevent system overflows and protect human and environmental health; rehabilitate, upgrade, and replace aging infrastructure; and keep revenues aligned with the costs of providing reliable wastewater service.

Property owners can submit a written protest to the proposed increase to the sewer rates. However, only one protest will be counted per parcel. Each protest must (1) be in writing; (2) state that the identified property owner opposes the proposed increases to the sewer rates; (3) identify the parcel for which the protest is made (by assessor’s parcel number or street address); and (4) include the signature of the property owner. Protests submitted by e-mail, facsimile, or other electronic means will not be counted. Written protests may be submitted by mail to the City Clerk at 330 W. 20th Avenue, San Mateo, CA 94403 or at the public hearing, so long as the protests are received before the public hearing ends. Please identify on the envelope for any written protest, whether mailed or submitted in person to the City Clerk, that the enclosed written protest is for the Public Hearing on the Proposed Sewer Rate Increase.
 
During the March 5 hearing, the City Council heard all public testimony and consider all written protests. At the end of the  hearing, the City Council  decided whether to adopt the proposed sewer rates. Oral comments at the hearing will not qualify as formal protests unless accompanied by a written protest, but the City welcomes your input. If, at the end of the  hearing, written protests against the proposed increases to the sewer rates are not presented by a majority of affected property owners of the identified parcels, the City Council will be authorized to adopt the rates.

February 1 Community Meeting about Proposed Sewer Rate Increases and Restructuring

On February 1, 2018, the Clean Water Program hosted a community meeting to provide information about the multi-year capital improvement program that will upgrade our sanitary sewer system and improve the wastewater treatment plant to prevent pollution, comply with regulations, improve service, and protect public health and the environment. The meeting also provided information about proposed sewer rate restructuring and increases that are necessary to help fund these vital improvements. The same information was presented at community meetings on November 29 and 30, 2017. Click here to view the PowerPoint presentation.

CWP Presentation to Public Works Commission on January 10, 2018

On January 10, CWP staff presented at the Public Works Commission. The presentation included information about the proposed sewer rate restructuring and increase plan to fund capital improvements of the wastewater treatment plant and associated infrastructure.

The proposed rate increases and restructuring will allow the City to generate a reliable source of revenue needed to meet increased regulatory requirements; increase system capacity to prevent system overflows and protect human and environmental health; rehabilitate, upgrade, and replace aging infrastructure; and keep revenues aligned with the costs of providing reliable wastewater service. Click here to view the presentation.

City To Conduct Pile Driving Testing in Early 2018

The City of San Mateo is designing a wastewater treatment plant (WWTP) upgrade. To refine the design, the City needs to drive a small number of test piles to obtain data about construction site conditions. The construction test will be conducted near the intersection of 3rd Ave and Detroit Drive, at the parcel north of the existing WWTP. This work is part of a multi-year program to upgrade the WWTP to improve service and comply with regulatory requirements to protect the environment and public health.

Between mid-January and late February, pile driving will occur between the hours of 9 am to 5 pm; other work will meet work hours identified in the City Municipal Code. The surrounding neighborhood may hear this work intermittently. 

You can view the notification mailer here. If you have any questions or concerns, please contact the Program hotline at (650) 727-6870.

January 2 Sewer Rate Restructuring and Increase Presentation

On January 2, 2018, Clean Water Program (CWP) staff requested approval of, and permission to mail, the Proposition 218 Notice, announcing proposed sewer rate increases and restructuring plan required to fund continued operation and upgrades of the sanitary sewer system.

The upgrades proposed for the sewer system are necessary to rehabilitate or replace aging infrastructure, increase system capacity, and address increased regulatory environmental requirements and potential health issues associated with sewer overflows. You can view the PowerPoint presentation or view the video here.

Third Community Meeting about Proposed Sewer Rate Increases and Restructuring

San Mateo residents were invited to attend a community meeting to learn about the Clean Water Program being implemented by the City of San Mateo Public Works Department. The meeting provided information about the multi-year capital improvement program that will upgrade our sanitary sewer system and improve the wastewater treatment plant to prevent pollution, comply with regulations, improve service, and protect public health and the environment. The meeting also provided information about proposed sewer rate restructuring and increases that are necessary to help fund these vital improvements.

The same information was presented at community meetings on November 29 and 30, 2017.

Sewer Rate Community Meeting
Thursday, February 1, 6:30 – 8:30 p.m.
City Council Chambers
330 W. 20th Avenue
San Mateo, CA 94403

Clean Water Program to Present at Public Works Commission on January 10, 2018

The first City of San Mateo Public Works Commission meeting of 2018 was held on January 10. CWP staff presented information about the proposed rate restructuring and increase plan to fund capital improvements of the wastewater treatment plant and associated infrastructure.

The proposed rate increases and restructuring will allow the City to generate a reliable source of revenue needed to meet increased regulatory requirements; increase system capacity to prevent system overflows and protect human and environmental health; rehabilitate, upgrade, and replace aging infrastructure; and keep revenues aligned with the costs of providing reliable wastewater service.

Following the presentation, CWP staff asked the Public Works Commissioners to recommend adoption of the rate increases and restructuring plan to City Council. The public was invited to attend to gain additional insight into the rate proposal; however, a formal public question and answer session is not planned. Residents had opportunities to ask questions and provide comments at an additional community meeting held on February 1, 2018.

Public Works Commission Meeting
Wednesday, January 10, 2018; 7:00 pm
City Hall Council Chambers
330 W. 20th Ave
San Mateo, CA 94403

Clean Water Program to Present at City Council on Tuesday, January 2, 2018

The first City Council meeting of 2018 was held on January 2, 2018. Clean Water Program (CWP) staff requested approval of, and permission to mail, the Proposition 218 Notice, announcing the sewer rate increases and restructuring plan required to fund continued operation and upgrades of the sanitary sewer system.

The proposed rate increases and restructuring were presented at community meetings held on November 29 and 30, 2017, and public comment and feedback received at that time will be included as part of the presentation to City Council. 

The upgrades proposed for the sewer system are necessary to rehabilitate or replace aging infrastructure, increase system capacity, and address increased regulatory environmental requirements and potential health issues associated with sewer overflows.

City Council Meeting
Tuesday, January 2, 2018; 7:00 pm
City Hall Council Chambers
330 W. 20th Ave
San Mateo, CA 94403

Community Meetings on Proposed Sewer Rate Increases

On November 29 and 30, the Clean Water Program hosted two community meetings to provide an update on the program and to discuss proposed rate increases. To see the presentation that was given at the meetings, please click here.

November 9: Sustainability Commission Update

The CWP provided a general program presentation to the Sustainability Commission at its November 9 meeting. The presentation included an update about how the program incorporates sustainability efforts in the following areas: the City’s Climate Action Plan, Leadership in Energy and Environmental Design (LEED) Certification, Envision system metrics, and progress on recycled water study and water reuse options.

October 12 and 17, 2017, Neighborhood Meetings About Upcoming Sewer Pipeline Condition Assessments

On October 12 and 17, the Clean Water Program staff held neighborhood meetings to inform residents about upcoming sewer pipeline condition assessments. These assessments are part of a pilot project intended to help determine the best approaches to sewer repairs and rehabilitation. The assessments will take place in the Marina Lagoon and southern Shoreview Parkside neighborhoods and are expected to begin in November 2017. View the presentation here.

October 16, 2017, Study Session on Clean Water Program Financial Planning and Rate Adjustments

The study session featured a presentation on the financial planning for the Clean Water Program and proposals for rate restructuring and adjustments. The study session video is available here.

August 8, 2017, Study Session on the Wastewater Treatment Plant Upgrade and Expansion Project

The study session featured a presentation on the status of the planned upgrade and expansion of the treatment plant on a preliminary basis. The Clean Water Program is in the process of applying for a special use permit for this project from the City, and this session also provided an update on that permitting process.

City Council Selects Location for In-System Storage Facility

San Mateo’s existing wastewater system capacity is insufficient to address the wet weather flows that occur in the winter months and lead to sanitary sewer overflows (SSOs). To address this issue, a comprehensive approach to improve capacity involving an underground, in-system storage facility upstream of the WWTP is planned.

On July 17, 2017, the City Council selected the San Mateo County Event Center for the location of the underground storage facility. The Event Center is near where the most SSOs have historically occurred, near the intersection of S. Delaware Street and 25th Ave. Project. The northeast corner of the property, where the RV Storage Lot is located, will be used for the facility.

This storage facility will be capable of temporarily storing approximately 5 million gallons of wastewater during heavy rains. During these conditions, flows will divert from the sewer pipes to the storage facility to prevent overflows from occurring. After a storm subsides, and generally within 24 hours, wastewater in the facility will be pumped back into the collection system pipes and conveyed to the wastewater treatment plant.