Waterline Improvement Project

Waterline Improvement Project

OCSD is a multi-service special district providing fire protection, sewer collection and water services, solid waste, parks and recreation, and street lighting to residents and businesses in the communities of Oceano and Halcyon in San Luis Obispo County, California. Several water mains in the existing OCSD system are approaching the end of their useful life expectancy. To address pipeline deficiencies, OCSD intends to install new pipeline main sections, replace existing pipeline main sections with upsized pipes, replace pipeline dead-ends with loops, and install an emergency intertie with the City of Arroyo Grande system. Project construction would occur over approximately one year and would utilize a combination of open-cut trenching and trenchless jack-and-bore construction techniques to install and replace pipeline segments. Project construction phases would include site preparation, pipeline installation (open-cut trenching or jack-and-bore), and paving/ground restoration. The project would result in approximately 76,150 square feet, or approximately 1.75 acres, of total ground disturbance, and would involve a typical maximum excavation depth of up to five feet. The emergency intertie between the OCSD system and the City of Arroyo Grande system would be located on Segment 2-10 along Halcyon Road. This intertie would be installed for emergency purposes only and would not alter the water supply capacity of either system. Existing operation and maintenance activities associated with OCSD’s water system would be substantially reduced once all CIP segments are implemented.

Arroyo Grande, unincorporated

San Luis Obispo

Southern California, Unincorporated

California Air Resources Board (ARB), California Coastal Commission (CCC), California Department of Fish and Wildlife, Central Region 4 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Resources Recycling and Recovery, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 5 (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, Central Coast Region 3 (RWQCB), California State Lands Commission (SLC), Office of Historic Preservation, 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, State Water Resources Control Board, Division of Drinking Water

State Water Resources Control Board, Division of Drinking Water

Water Facilities (no net increase in water supply)(Type pipeline, MGD 1)

project approval

Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Coastal Zone, 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