Fair Oaks Sewer Maintenance District Sanitary Sewer Trunk Line Replacement Project

Fair Oaks Sewer Maintenance District Sanitary Sewer Trunk Line Replacement Project

The County of San Mateo Department of Public Works proposes to replace antiquated, 33-inch diameter reinforced concrete pipe segments with industry-standard, 36-inch-diameter polyvinyl chloride pipe segments associated with the North Fair Oaks Trunk Sewer. The Project would affect 1,404 linear feet of the existing pipe segments. Two sections of three cannot be replaced in-place. They would be realigned mainly via trenchless construction (pipe jacking and microtunneling); the existing sections would be abandoned. The third section would be replaced in-place, via open trench construction; construction of this section would require use of a temporary sewage bypass system. The Project would also include the housekeeping of existing manholes to either abandon them if no longer required or bring them to code if they are substandard. Approximately 1,411 linear feet of new pipe segments would be installed over a six-month period, beginning in April 2025.

Redwood City

San Mateo

San Francisco Bay Area

California Air Resources Board (ARB), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Fish and Wildlife, Marin Region 7 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Water Resources (DWR), 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 Lands Commission (SLC), Office of Historic Preservation, San Francisco Bay Conservation and Development Commission (BCDC), State Water Resources Control Board, Division of Water Quality, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 4 (DOT)

California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 4 (DOT)

Other (Replacement of 1,404 linear feet of existing sewer line segments)

Site Plan

Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Coastal Zone, Cultural Resources, Cumulative Effects, Energy, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, 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, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire