Sandmound Boulevard Water Systems Consolidation Project

Sandmound Boulevard Water Systems Consolidation Project

The project proposes to consolidate four small community water systems (M-27 Willow Park Marina [consisting of Willow Park Marina (WPM) and Mariner Estates], Sandy Point Mobile Home Park,Delta Mutual Water Company, and Oakley Mutual Water Company) with Diablo Water District (DWD) to provide the small systems with drinking water that meets water quality regulations. The proposed project would construct and operate a new drinking water main distribution pipeline. The new main pipeline would be constructed within City and County rights-of-way on Sandmound Boulevard and East Cypress Road outside of Oakley, CA. This project would construct a new 12-lnch polyvinyl chloride water distribution pipeline and connect to an existing DWD main pipeline. The new pipeline would be approximately 2.6 miles long and approximately 4 to 8 feet below the ground surface. A second pipeline (approx. 2,750 feet) would be constructed in the WPM to a depth of 4 to 8 feet. Service connections would be replaced to meet Diablo Water District (DWD) standards. The new waler main pipeline would connect to the DWD water distribution system which would require temporary shutdown while the new meter is installed and service is switched to the DWD system. Limited service interruptions would be limited to 4 hours at any one time. Distrubed areas will be returned to existing or better conditions after construction. During construction, construction controls, best managment practices, and mitigation measures will be implemented to minimize impacts.

Oakley

Contra Costa

Northern California, San Francisco Bay Area

California Air Resources Board (ARB), California Coastal Commission (CCC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Fish and Wildlife, Marin Region 7 (CDFW), 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 Energy Commission, California Fish and Game Commission (CDFGC), California Governor's Office of Emergency Services (OES), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB), California San Joaquin River Conservancy (SJRC), California State Coastal Conservancy (SCC), California State Lands Commission (SLC), Central Valley Flood Protection Board, Delta Protection Commission, Delta Stewardship Council, Department of Food and Agriculture (CDFA), 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 Drinking Water, District 4, 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, California Department of Conservation (DOC)

California Department of Conservation (DOC)

Water Facilities (Main)(Type Service Lines, MGD .0791)

Consolidation

Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Energy, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Sewer Capacity, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire