Section 401 Water Quality Certification Public Notice

Evans and Mariposa Combined Sewer Discharge Improvement Project


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:

Evans and Mariposa Combined Sewer Discharge Improvement Project
City/County:

San Francisco, San Francisco County
Comment Period:

1/8/2025 - 1/28/2025
Project Description:

The Project involves rehabilitating the existing CSDs and discharge pipes located at Mariposa Street and Evans Avenue.
Project Files:

Contact Staff for files
Staff Contact:

Elizabeth Morrison
(510) 622-2330
Water Quality Control Board
1515 Clay Street, Ste 1400
Oakland, CA 94612