Background
The Patterson Reservoir Remediation Project (Project) will restore storage capacity and provide sufficient freeboard for the reservoir as required by the California Department of Water Resources, Division of Safety of Dams (DSOD). The project involves constructing earthen berms on the east and west side of the existing reservoir, which will tie into the higher ground on the north and south sides to form a continuous ring around the reservoir. The project is currently in the design phase.
Location
The project site is located at Patterson Reservoir along Patterson Road off Paseo Padre Parkway in Fremont between the Coyote Hills Regional Park and Dumbarton Quarry Campground, north of Highway 84.
CEQA Documents
ACWD has prepared a draft Initial Study/Mitigated Negative Declaration (IS/MND) for the proposed project. In accordance with the California Environmental Quality Act (CEQA), this document is now available for public review and comment.
Public review period is scheduled as follows:
- Start Date: March 11, 2026
- End Date: April 11, 2026
All comments regarding the draft IS/MND must be submitted in writing no later than 5:00 p.m. on the closing date of April 11, 2026.
Project Resources
Project Map
Project Contacts
ACWD Project Manager
Dorota Budzynska
Email Dorota Budzynska
Phone: (510) 668-4420
ACWD Public Affairs
Sharene Gonzales
Email Sharene Gonzales
Phone: (510) 668-4208
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