Reservoir 20B Project

Reservoir 20B Project

The Reservoir 20B Project would involve installation of a pre-stressed concrete reservoir with a water storage capacity of 1.3 million gallons (DSRSD will determine a final optimal reservoir capacity). The reservoir would have a diameter of approximately 102 feet and footprint of approximately 17,500 square feet, and would be located underground at the top of a hill within the project site. At this location, the reservoir would have a similar elevation to the existing Reservoir 20A, located approximately 1.4 miles northwest of the project site, so that the hydraulic gradient throughout the District’s Zone 20 system remain consistent. The project would involve installation of an access staircase, 425-foot storm drain pipeline, and a 1,000-foot water supply main pipeline. The project would also include a sewer connection to the sewer system planned for the surrounding East Ranch Development, and a future access road. Although the access road would not be constructed at this time, it is considered in this IS-MND. Construction is anticipated to occur over 15 months.

Dublin

Alameda

Northern California, San Francisco Bay Area

California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Fish and Wildlife, North Central Region 2 (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 Transportation, Division of Aeronautics (DOT), California Department of Transportation, Division of Transportation Planning (DOT), California Department of Water Resources (DWR), California Governor's Office of Emergency Services (OES), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), California State Lands Commission (SLC), Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Drinking Water, District 17, 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

Water Facilities (reservoir)(Type reservoir, MGD 1.3)

project approval

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