A district may acquire, construct, operate, and furnish facilities for the control of waters to protect, maintain, and enhance the quality of lands within the district, including drainage, disposal of drainage water and water of deleterious quality, and conservation and beneficial use of flood, storm, and other waste waters occurring on the lands.
Source:
Section 35520.1, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=WAT§ionNum=35520.1..