Cal. Wat. Code § 12666
The project for flood protection on the streams in the vicinity of Fairfield, California, is adopted and authorized substantially in accordance with the recommendations of the Chief of Engineers in House Document No. 91-159, 91st Congress, First Session, and adopted and authorized by the act of Congress approved December 31, 1970 (Public Law 91-611) at an estimated cost to the state of such sums as may be appropriated for state participation by the Legislature upon the recommendation and advice of the Reclamation Board. This authorization shall not be deemed to confer preference on this project over the needs of other statewide programs in appropriations of available funds. No state funds shall be appropriated until federal advanced engineering and design funds are available.
Notwithstanding the provisions of Section 12585.4, the Reclamation Board shall have the authority and is hereby authorized to enter into a loan agreement with the local agency pursuant to Section 12585.4. The state is authorized to pay 50 percent of the nonfederal capital costs of the recreation and fish and wildlife enhancement features of the project pursuant to Section 12847.
Ca. Water Code § 12666