NAC445A.6698. Pumping facilities: Intakes.

     1. A pumping station must, if it pumps surface water, use a type of intake that is appropriate for the type of pumping station. The intake must be protected in such a manner as to prevent any deterioration in the sanitary quality of the pumped water.

     2. Except where surface water is obtained by direct suction from an adjacent supply, water must be conducted from its source through a watertight conduit by:

     (a) Gravity into a suction well located in or adjacent to the pump house; or

     (b) Submersible pumps or booster pumps.

     3. Intakes for obtaining water from a lake or reservoir other than Lake Mead must be designed in such a manner that:

     (a) The intake is submerged at least 15 feet below the surface, is located at least 4 feet off the bottom and extends into the water at least 1,000 feet from the shore.

     (b) If the quality of the water varies with depth, the intake can withdraw water from more than one level.

     (c) The intake has a diversionary device that:

          (1) Prevents the intake of fish and debris; and

          (2) Is designed and located in such a manner as to prevent damage from marine vehicles and anchors.

     (d) The intake is located away from any creek, drainage, marina, on-shore sewerage infrastructure or other source of pollution or contamination.

     (Added to NAC by Bd. of Health, eff. 2-20-97)