Environmental Review

Geotechnical Investigations

The Sites Project Authority is the lead agency under the California Environmental Quality Act for preparation of environmental documents for geologic, geophysical, and geotechnical investigations in Glenn, Colusa, and Yolo Counties. The purpose of this effort is to conduct field investigations and surveys to obtain data and information needed to formulate and refine the engineering design and to assist in the preparation of permit applications for the proposed Sites Reservoir and associated facilities in western Sacramento Valley. On May 23, 2022, the Sites Project Authority issued a Notice of Intent to Adopt a Mitigated Negative Declaration for the 2022-2024 Sites Reservoir Geologic, Geophysical, and Geotechnical Investigations. The associated Draft Environmental Assessment/Initial Assessment (EA/IS) was also released on May 23, 2022 for a 30-day public review.

The review period ended on June 21, 2022 and comments were received from four public agencies. Responses to those comments have been included in a Final EA/IS. The Sites Project Authority Board adopted the CEQA IS/Mitigated Negative Declaration and Mitigation Monitoring or Reporting Program and approved the Project on Wednesday, July 27, 2022. A Notice of Determination was filed with the Colusa, Glenn, and Yolo county clerks and posted to the State Clearinghouse on Monday, August 1, 2022. The Mitigated Negative Declaration and Final EA/IS for the 2022-2024 Sites Reservoir Geologic, Geophysical, and Geotechnical Investigations was also filed at the State Clearinghouse as an attachment to the Notice of Determination.

Project EIR/EIS

The Sites Project Authority is the lead agency under the California Environmental Quality Act for preparation of an Environmental Impact Report on the proposal to construct and operate a new offstream water storage reservoir and associated facilities. Public involvement is an important part of the environmental review process, with several opportunities to participate and help inform the content of the project's environmental analyses.

On November 12, 2021, the Sites Project Authority issued a Notice of Availability announcing the public review and comment period for the Revised Draft Environmental Impact Report/Supplemental Draft Environmental Impact Statement (RDEIR/SDEIS) and dates of virtual public meetings.

On December 22, 2021, the Sites Project Authority announced a two week extension of the public review and comment period from January 11, 2022 to January 28, 2022.

Virtual Public Meetings
Virtual public meetings were held December 15, 2021, 6 to 8 p.m. PST and December 16, 2021, 9 to 11 a.m. PST to provide information about the project and the draft environmental analysis, and to accept public comments on the RDEIR/SDEIS. Each meeting began with a presentation followed by an opportunity to ask questions and provide comments. Participation in the meetings was available via computer and phone. Please click here to view the virtual public meeting presentation.