Nevada Administrative Code
Chapter 444 - Sanitation
SEWAGE DISPOSAL
Discharge and Treatment of Liquid Waste and Wastewater
Section 444.8301 - General requirements for primary treatment unit; use of alternative treatment system

1. All liquid waste and wastewater must be discharged into a septic tank or other approved primary treatment unit. Graywater may be discharged separately in accordance with NAC 444.837 and 444.8372. Water from a roof or footing, water from garage and surface drainage, and processed water must be prevented from entering an individual sewage disposal system.

2. A primary treatment unit must be of sufficient size to provide adequate treatment during a period of maximum inflow.

3. A primary treatment unit must be accessible. If the top of the primary treatment unit is more than 18 inches below the surface of the ground, a manhole extension that is at least 24 inches in diameter and extends from the top of the unit to within 18 inches of the surface of the ground must be used for each access into the unit.

4. To prevent differential settling, a primary treatment unit must be placed on undisturbed soil, or on at least 4 inches of sand overlying a firm and uniform base.

5. An alternative treatment system, other than those described in NAC 444.8314 to 444.8324, inclusive, may be used if approved by the health authority. An alternative treatment system must have a minimum capacity that is equal to the required minimum capacity of the appropriate septic tank as calculated pursuant to NAC 444.8304 and 444.8306.