California Code, Water Code - WAT § 13286

(a) On and after January 1, 2012, the appropriate regional board shall prohibit the discharge of wastewater into the ground through the use of individual subsurface disposal systems in the Cove area of Cathedral City in Riverside County for the purposes of protecting the health and safety of the residents consuming the groundwater of the Upper Coachella Valley Groundwater Basin and achieving the applicable water quality objectives.

(b) The appropriate regional board shall revise its water quality control plan to reflect the prohibition set forth in subdivision (a).

(c) Notwithstanding subdivisions (a) and (b), the appropriate regional board, prior to January 1, 2012, may prohibit the discharge of wastewater through the use of individual subsurface disposal systems in the Cove area of Cathedral City in Riverside County, and if so prohibited, that board shall revise its water quality control plan to reflect the prohibition.

(d) To ensure that the purposes of this section are fulfilled, the state board, using existing resources, shall assist Cathedral City to identify and obtain state and federal funds to establish a sanitary public domestic and commercial wastewater disposal system.