Water Code § 12726
ARTICLE 3. Projects in Other Watersheds
The Sonoma County Flood Control and Water Conservation District shall give assurances satisfactory to the Secretary of the Army that the local co-operation, required by the act of Congress approved October 23, 1962 (Public Law 87-874, 76 Stat. 1173), will be furnished by the district in connection with the plan of flood control adopted and authorized by Section 12725.