Section 401 Water Quality Certification Public Notice

Pond Y Repair


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:

Pond Y Repair
City/County:

Pleasanton, Alameda County
Comment Period:

8/20/2024 - 9/9/2024
Project Description:

Starting in January 2023, the State of California, including Alameda County, experienced severe storm events that resulted in issuance of emergency declarations at the local, state and federal level. As a result of these storms and related releases from the Del Valle Dam, the ADV channel morphology significantly and unexpectedly changed, causing flows to concentrate at and along the east end of the berm separating the ADV from Pond Y. As a result, the berm has eroded and its stability has been severely compromised, leaving the berm susceptible to an imminent failure.
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