Section 65-171y - Public water supply system regulation of lawn irrigation systems(a) Subject to the provisions of subsection (b), any lawn irrigation system which is not used for the application of fertilizers, pesticides or other chemicals shall not be deemed to be a high-hazard water system, and shall not be required to be equipped with a high-hazard backflow prevention device. Any such lawn irrigation system installed, renovated, replaced or extended on or after July 1, 1994, shall have at least a low-hazard double check valve assembly as a minimum level of backflow protection and any such valve on a new system installed after July 1, 1994, shall be installed in such a manner as to be easily accessible for inspection.(b) A public water supply system operated by a city or county may impose any requirement, in addition to that provided by subsection (a), for backflow protection or prevention on lawn irrigation systems which are not used for the application of fertilizers, pesticides or other chemicals and which are connected to the public water supply system.L. 1994, ch. 349, § 19; July 1.