Section 401 Water Quality Certification Public Notice
Diamond Creek Vineyards Bridge Repair 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: |
Diamond Creek Vineyards Bridge Repair Project |
| City/County: |
Calistoga, Napa County |
| Comment Period: |
7/28/2026 - 08/17/2026 |
| Project Description: |
The proposed project consists of repairing the footings on a historic stone bridge over an unnamed intermittent creek along Diamond Mountain Road. The footings have become undermined via erosion and stabilization is required to provide safe access and prevent failure of the bridge. |
| Project Files: |
Contact Staff for files |
| Staff Contact: |
Alicia Pisani (510) 622-2318 Water Quality Control Board 1515 Clay Street, Ste 1400 Oakland, CA 94612 |
