Section 401 Water Quality Certification Public Notice
Wharf 3.5 Project-Geotechnical Investigation
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: |
Wharf 3.5 Project-Geotechnical Investigation |
| City/County: |
Concord, Contra Costa County |
| Comment Period: |
6/24/2026 - 07/14/2026 |
| Project Description: |
The Department of the Army (DOA) is proposing implementation of geotechnical borings along the Wharf 3.5 alignment. The geotechnical borings are for the geotechnical design of a new 170,500 sq. ft. Wharf 3.5, intended to support the MOTCO mission. These borings are needed to select a deep foundation design, which involves determining pile dimensions, assessing axial and lateral pile capacity, and understanding and addressing geological risks. |
| Project Files: |
Contact Staff for files |
| Staff Contact: |
Kathryn Hart (510) 622-2356 Water Quality Control Board 1515 Clay Street, Ste 1400 Oakland, CA 94612 |
