Section 401 Water Quality Certification Public Notice

Alhambra Creek Culvert Wingwall Emergency Repair at Truitt


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:

Alhambra Creek Culvert Wingwall Emergency Repair at Truitt
City/County:

Martinez, Contra Costa County
Comment Period:

09/12/2026 - 10/02/2026
Project Description:

To replace, on an emergency basis, the failed wing wall of an existing 10-foot by 10-foot concrete box culvert that conveys Alhambra Creek beneath Alhambra Avenue. Current conditions include loss of support for an existing 4-inch natural gas pipeline in the backfill zone at the former location of the wing wall, as well as the resulting unsupported loose backfill slope.
Project Files:

Contact Staff for files
Staff Contact:

Alyssa Bucci
(510) 622-2462
Water Quality Control Board
1515 Clay Street, Ste 1400
Oakland, CA 94612