NAC445A.966. Aerobic wastewater treatment unit.

     1. If the Division or other administrative authority determines that the degradation of groundwater or the constraints of the site of the on-site sewage disposal system require an effluent which is of a higher quality than that which would be produced by a septic tank, the Division or other administrative authority may require that the on-site sewage disposal system include an aerobic wastewater treatment unit.

     2. The owner of an on-site sewage disposal system that will include an aerobic wastewater treatment unit must include in the design specifications submitted to the Division or other administrative authority a manual for the operation and maintenance of the aerobic wastewater treatment unit.

     3. The owner of an on-site sewage disposal system that will include an aerobic wastewater treatment unit must include in the design specifications submitted pursuant to NAC 445A.9614 a maintenance agreement with a service provider that covers the anticipated life span of the on-site sewage disposal system. The maintenance agreement must include, without limitation, provisions for an annual inspection of the system and its components which verifies that the system is:

     (a) Operating correctly; and

     (b) Producing effluent which has average daily maximum levels of 30 milligrams per liter or less each of total suspended solids and biochemical oxygen demand.

     4. An aerobic wastewater treatment unit that produces effluent which has average daily maximum levels of more than 30 milligrams per liter of total suspended solids or biochemical oxygen demand must be repaired or replaced in accordance with this section before the unit may be used.

     5. The design plans for an aerobic wastewater treatment unit must include a schematic detailing a 24-hour alarm system for monitoring the operation of the aerobic wastewater treatment unit.

     6. Except in those cases where an aerobic wastewater treatment unit is required, an aerobic wastewater treatment unit is not allowed in areas where electrical service is unreliable, dependable maintenance is not available or intermittent use of the aerobic wastewater treatment unit adversely affects the operation of the on-site sewage disposal system.

     7. The Division or other administrative authority may authorize a reduction in the size of the effluent absorption area for an on-site sewage disposal system if an aerobic wastewater treatment unit is used. Any reduction in the size of the effluent absorption area must be justified by the design engineer based on the conditions of the soil and the site.

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