Legislation Details

File #: 26-0520    Version: 1 Name:
Type: Information Item Status: Agenda Ready
File created: 5/21/2026 In control: Water Supply and Demand Management Committee
On agenda: 6/8/2026 Final action:
Title: Receive Update on the Sites Reservoir Project, including Draft Sites Water Right Permit Terms, Proposed Contract Between Participants and Sites Authority, and State and Federal Funding.
Attachments: 1. Attachment 1: PowerPoint
COMMITTEE AGENDA MEMORANDUM
Water Supply and Demand Management Committee

Government Code ? 84308 Applies: Yes ? No ?
(If "YES" Complete Attachment A - Gov. Code ? 84308)



SUBJECT: title
Receive Update on the Sites Reservoir Project, including Draft Sites Water Right Permit Terms, Proposed Contract Between Participants and Sites Authority, and State and Federal Funding.
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RECOMMENDATION: Recommendation
Receive and discuss information on the Sites Reservoir Project, including the draft Sites water right permit terms, proposed contract between Participants and Sites Authority, and State and federal funding.
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SUMMARY:
The Sites Reservoir Project (Project) is a proposed 1.5 million acre-foot (AF), off-stream reservoir that would be located north of the Delta approximately 10 miles west of the town of Maxwell in Colusa County. The Project is designed to divert excess flows on the Sacramento River during storms and store this water in Sites Reservoir, this water can then be released to provide water supply during dry years. In addition to providing water supply for Project participants, the Project will provide public benefits including environmental water supply, recreation facilities, and regional flood benefits. Current members of the Sites Project Authority (Authority) and Reservoir Committee (Participants) include both Central Valley Project water agencies north of the Delta and State Water Project (SWP) water agencies south of the Delta. The Project is one of several investment options evaluated in the Water Supply Master Plan 2050 (WSMP) planning process to help ensure water supply reliability. The latest capital cost estimate for the Project is $6.8 billion to $7.8 billion in 2025 dollars, not including financing costs.
Valley Water currently has a 0.66% participation level in the Project, which corresponds to a storage capacity of 9,351 AF and an expected average dry year yield of approximately 2,100 AF of water. In July 2022, Valley Wate...

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