NAC445A.965. Setbacks.

     1. The setbacks, defined as the minimum horizontal separation, that must be maintained between the perimeter of the specific components of an on-site sewage disposal system and the listed features include:

Minimum Horizontal Distance, in clear, required from:	Building Sewer Drain	Septic or other Treatment Tank	Disposal Field
Building or structure	—	10′	10′
Property lines	10′	10′	10′
Water supply wells - domestic (sealed to 50 feet)	50′	100′	100′
Water supply wells (not sealed to 50 feet)	50′	100′	150′
Public water supply wells	50′	150′	150′
Streams or watercourses	50′	100′	100′
Drainage channels or irrigation ditches	25′	25′	25′
Trees that may affect the disposal area (roots, shade, etc.)	—	10′	10′
Disposal fields	—	5′	—
Community water main line	10′	25′	25′
Individual water service line	10′	25′	25′
Dry wells	—	10′	25′

     2. The Division or other administrative authority may increase the minimum distance specified in subsection 1 between a well and any component of an on-site sewage disposal system based on considerations which include, without limitation:

     (a) The depth to the water table;

     (b) The soil profile;

     (c) The results of a groundwater mounding analysis, if required pursuant to NAC 445A.9602;

     (d) A site located in a nitrogen management area; or

     (e) A site located in a wellhead protection area as designated by the staff of the Groundwater Protection Branch of the Bureau of Water Pollution Control of the Division.

     (Added to NAC by Environmental Comm’n by R194-07, eff. 8-26-2008)