California Code
ARTICLE 2 - Dams and Obstructions
Section 5947.

5947. It is unlawful for the owner of a dam in District 41/2 to release water from the dam, or any facilities for the generation of hydroelectric energy operated in connection therewith, in varying flows in such a manner as to destroy fish life below such release.

(Enacted by Stats. 1957, Ch. 456.)