Water Code § 12689

The Los Angeles County Flood Control District shall give the necessary assurances that the local cooperation required by the United States on the program mentioned in Section 12688 will be furnished by the district. It shall be the duty of the district to execute the plan with the United States and exercise all powers granted to it in the Los Angeles County Flood Control Act, and the district may make such modifications and amendments to the program as may be necessary to execute it for the purposes of Chapters 1 and 2 of this part.