2023-2024 Sites Reservoir Test Pits, Fault Studies and Quarry Studies

2023-2024 Sites Reservoir Test Pits, Fault Studies and Quarry Studies

The Sites Project Authority is proposing to conduct field investigations (“investigations”) using test pit and trench excavations in Colusa, Glenn, and Yolo Counties. The purpose of these investigations is to obtain information necessary to support the ongoing engineering evaluations and design development for the proposed Sites Reservoir and associated facilities. The Proposed Project would be implemented in and near the Antelope Valley in Colusa and Glenn Counties where the dams, reservoirs, pipelines, and related facilities could be located for the proposed Sites Reservoir, along with areas near the town of Dunnigan in Yolo County where pipelines and related facilities could be located for the proposed Sites Reservoir. The Proposed Project includes up to 84 test pits and trenches for 11 fault studies and 7 quarry studies. Test pits would provide information regarding the quantity and quality of borrow materials at proposed quarry locations, as well as information regarding pipeline trench stability; fault studies would provide information in areas of suspected and known fault traces/zones; and quarry studies would provide information on quantity and quality of borrow materials.

Sites, Maxwell, Dunnigan

Colusa, Glenn, Yolo

Countywide

California Air Resources Board (ARB), 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 Resources Recycling and Recovery, California Department of Transportation, District 3 (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 Public Utilities Commission (CPUC), California State Lands Commission (SLC), Central Valley Flood Protection Board, Delta Protection Commission, Delta Stewardship Council, Office of Historic Preservation, 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, California Department of Fish and Wildlife, North Central Region 2 (CDFW), California Department of Toxic Substances Control (DTSC), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)

California Department of Fish and Wildlife, North Central Region 2 (CDFW), California Department of Toxic Substances Control (DTSC), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)

Other (Subsurface Investigations)

Subsurface Investigations

Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, 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, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire