Public fishing shall not be conducted in a reservoir or on its surrounding land if the reservoir is used as a regulating reservoir to meet daily or peak consumption demands and as a terminal reservoir to a water collecting facility and as a distribution reservoir from which water may be supplied for drinking or domestic purposes without full purification treatment after withdrawal from the reservoir.
Source:
Section 117050, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=117050..