Section 401 Water Quality Certification Public Notice

Sunnyvale WPCP Secondary Effluent Pipeline Replacement Project_2


The San Francisco Regional Water Quality Control Board is currently reviewing an application for the following project for water quality certification under Section 401 of the Clean Water Act. We encourage public comments on the proposed work, which will be considered in the decision on certification. You may submit comments on this project to the staff member below.


Project Name:

Sunnyvale WPCP Secondary Effluent Pipeline Replacement Project_2
City/County:

Sunnyvale, Santa Clara County
Comment Period:

2/14/2025 - 3/6/2025
Project Description:

The overarching purpose of the project is to authorize permanent retention of the existing facilities that were installed as part of the 2020 Emergency Project to support continued wastewater treatment services that reliably meet health and safety and water quality standards, consistent with the existing WPCP wastewater treatment services.
Project Files:

Contact Staff for files
Staff Contact:

Brian Wines
(510) 622-5680
Water Quality Control Board
1515 Clay Street, Ste 1400
Oakland, CA 94612