Sites Reservoir Project

4 Documents in Project


SCH Number
Lead Agency
Site Project Authority (SPA)
Document Title
Sites Reservoir Project
Document Type
RIR - Revised Environmental Impact Rep
Present Land Use
Exclusive Agriculture/Agriculture/Forestry
Document Description
Revised Draft Environmental Impact Report/ Supplemental Draft Environmental Impact Statement The proposed Sites Reservoir Project (Project) consists of the construction and operation of a new offstream surface water reservoir with a capacity of approximately 1.3-1.5 million acre-feet. The Project would use existing infrastructure to divert unappropriated flow from the Sacramento River at Red Bluff and Hamilton City and convey the water to a new offstream reservoir west of the community of Maxwell, California. New and existing facilities would move water into and out of the reservoir, with ultimate release back to the Sacramento River system via existing canals and a new pipeline located near Dunnigan, California. The Project would require modifications to the Glenn-Colusa Irrigation District system and the Tehama-Colusa Canal to move water into and out of the reservoir. Water conveyance between Sites Reservoir and the canals and Dunnigan pipeline would be facilitated by an existing and one new regulating reservoir and two new associated pumping/generating plants. New electrical substations would connect the pumping/generating facilities and their associated electrical switchyards to an existing overhead power line. Three new recreation areas would also be constructed around the new Sites Reservoir. New roads would be constructed to provide access to Project facilities and recreation areas, and some existing roads would be relocated or improved. Construction of Sites Reservoir would also necessitate construction of a bridge or bypass road to connect Maxwell with the community of Lodoga.

Contact Information

Alicia Forsythe
Agency Name
Environmental Planning and Permitting Manager
Contact Types
Lead/Public Agency


Colusa, Glenn, Tehama, Yolo
Northern California, Statewide
Cross Streets
Maxwell Sites Rd. and Sites Lodoga Rd.
Total Acres
Parcel #
State Highways
Interstate 5
Sacramento River; Stone Corral, Funks, and Bird Creeks; Colusa Basin Drain

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Department of Conservation (DOC), 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 State Parks, Division of Boating and Waterways, California Department of Transportation, District 2 (DOT), California Department of Transportation, District 3 (DOT), California Department of Water Resources (DWR), California Energy Commission, 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 Regional Water Quality Control Board, Central Valley Redding Region 5 (RWQCB), California State Lands Commission (SLC), Central Valley Flood Protection Board, Delta Protection Commission, Delta Stewardship Council, Department of Toxic Substances Control, 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, State Water Resources Control Board, Divison of Financial Assistance, California Department of Fish and Wildlife, Northern and Eureka Region 1 (CDFW), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)
State Reviewing Agency Comments
California Department of Fish and Wildlife, Northern and Eureka Region 1 (CDFW), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)
Development Types
Water Facilities (1.3-1.5 MAF)(Type Reservoir, MGD 0.000001), Other (water facilities)
Local Actions
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Economics/Jobs, Energy, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, 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


Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
Notice of Completion [NOC] Transmittal form
State Comment Letters [Comments from state reviewing agencies]

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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