Patterson Reservoir Remediation Project
Summary
SCH Number
2026030615
Lead Agency
Alameda County Water District
(ACWD)
Document Title
Patterson Reservoir Remediation Project
Document Type
MND - Mitigated Negative Declaration
Received
Present Land Use
Open Space
Document Description
The Patterson Reservoir Remediation Project will restore storage capacity and maximize the operating water level while providing 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, tying into high ground on the north and south sides to create a ring around the Reservoir. To facilitate construction activities, existing utilities would be protected-in-place, relocated, or removed from service. Project construction is anticipated to take approximately 6 months between Spring 2027 and Fall 2027.
Contact Information
Name
Dorota Budzynska
Agency Name
Alameda County Water District
Job Title
Project Manager
Contact Types
Lead/Public Agency / Project Applicant
Phone
Location
Coordinates
Cities
Fremont
Counties
Alameda
Regions
Citywide, San Francisco Bay Area
Cross Streets
Paseo Padre Parkway / Kasier Drive
Total Acres
46
State Highways
84
Railways
none
Airports
none
Schools
Lincoln Elementary
Waterways
San Francisco Bay
Township
4
Range
2
Notice of Completion
State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Coastal Commission (CCC), California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 4 (DOT), California Department of Water Resources (DWR), California Fish and Game Commission (CDFGC), California Governor's Office of Emergency Services (OES), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), California State Coastal Conservancy (SCC), Delta Stewardship Council, Office of Historic Preservation, San Francisco Bay Conservation and Development Commission (BCDC), State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Division of Water Rights, State Water Resources Control Board, Divison of Financial Assistance
Development Types
Other (Berm Construction)
Local Actions
Other: Berm Construction
Project Issues
Aesthetics, Air Quality, Biological Resources, Cultural Resources, Geology/Soils, Hazards & Hazardous Materials, Noise, Recreation, Tribal Cultural Resources
Public Review Period Start
Public Review Period End
Attachments
Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
Notice of Completion [NOC] Transmittal form
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