Section 401 Water Quality Certification Public Notice

Tunitas Creek Road Mile 2.9 Emergency Slip-out 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:

Tunitas Creek Road Mile 2.9 Emergency Slip-out Repair
City/County:

Unincorporated, San Mateo County
Comment Period:

1/22/2026 - 02/11/2026
Project Description:

Tunitas Creek Road is unsupported due to the slip of the road embankment and there is no shoulder remaining. The slip-out was the result of a storm event in December 2025 and was worsened with the early January 2026 storm event. Repair and stabilization is necessary for maintaining the integrity of the roadway, public safety, and access for residents and emergency vehicles.
Project Files:

Contact Staff for files
Staff Contact:

Jackson Fimrite
(510) 622-2310
Water Quality Control Board
1515 Clay Street, Ste 1400
Oakland, CA 94612