NAC444.837. System utilizing graywater for underground irrigation: General requirements.

     1. Graywater may be used for underground irrigation if approved by the administrative authority. A homeowner must obtain a permit to construct, alter or install a system that uses graywater for underground irrigation from the administrative authority before such a system may be constructed, altered or installed.

     2. A system that uses graywater for underground irrigation:

     (a) May be used only for a single-family dwelling.

     (b) Must not be used in soils which have a percolation rate that is greater than 120 minutes per inch.

     (c) Must consist of a three-way diversion valve, a holding tank for the graywater and an irrigation system.

     (d) May be equipped with a pump or siphon, or may rely on gravity to cause the water to flow to the irrigation system.

     (e) Must not be connected to a system for potable water.

     (f) Must not result in the surfacing of any graywater.

     3. A system that uses graywater for underground irrigation, or any part thereof, must not be located on a lot other than the lot which is the site of the single-family dwelling that discharges the graywater to be used in the system.

     (Added to NAC by Bd. of Health by R129-98, eff. 3-25-99)