California Code, Water Code - WAT § 13163

(a) The state board shall coordinate water-quality-related investigations of state agencies, recognizing that other state agencies have primary statutory authority for such investigations, and shall consult with the concerned regional boards in implementing this section.

(b) The state board from time to time shall evaluate the need for water-quality-related investigations to effectively develop and implement statewide policy for water quality control and shall transmit its recommendations for investigations to affected or concerned federal, state, and local agencies. The affected state agencies shall comply with the recommendations or shall advise the state board in writing why they do not comply with such recommendations.

(c) State agencies shall submit to the state board plans for and results of all investigations that relate to or have an effect upon water quality for review and comment.