NAC444.8322. Nitrogen removal wastewater treatment unit: Approval required; design criteria; limitations on use; manual of operation and maintenance.

     1. A nitrogen removal wastewater treatment unit must be approved by:

     (a) NSF International pursuant to its Standard 40;

     (b) Any other equivalent nationally recognized testing laboratory approved by the health authority; or

     (c) The health authority.

     2. An application to construct an individual sewage disposal system that includes a nitrogen removal wastewater treatment unit must include evidence that the unit has been approved pursuant to subsection 1.

     3. An individual sewage disposal system that uses a nitrogen removal wastewater treatment unit must be designed by an engineer. The use of an individual sewage disposal system that includes a nitrogen removal wastewater treatment unit must be consistent with the approved design application and intended use for such a system.

     4. A nitrogen removal wastewater treatment unit must conform with all applicable provisions of the Nevada Administrative Code and is subject to any other requirements for design that are determined necessary by the administrative authority.

     5. An administrative authority may authorize a reduction in the size of the absorption area if the administrative authority requires the use of a nitrogen removal wastewater treatment unit pursuant to subsection 5 of NAC 444.8321. Any reduction in the size of the absorption area must be justified by an engineer based on the conditions of the soil and constraints of the site. No direct surface discharge is permitted.

     6. Except in those cases where a nitrogen removal wastewater treatment unit is required pursuant to subsection 5 of NAC 444.8321, a nitrogen removal wastewater treatment unit must not be used where:

     (a) The unit requires electrical power and the electrical service is unreliable;

     (b) Dependable maintenance is not available; or

     (c) The building will be occupied on a part-time basis and intermittent use of the nitrogen removal wastewater treatment unit will adversely effect the functioning of the individual sewage disposal system.

     7. The design plans for a nitrogen removal wastewater treatment unit must include a schematic detailing a 24-hour operating alarm system for the nitrogen removal wastewater treatment unit.

     8. A manual for the operation and maintenance of a nitrogen removal wastewater treatment unit must be submitted to the administrative authority with the design plans. The administrative authority shall not approve a nitrogen removal wastewater treatment unit if an operation and maintenance manual has not been submitted with the design plans and approved by the administrative authority.

     (Added to NAC by Bd. of Health by R129-98, eff. 3-25-99; A by R100-07, 10-31-2007)

Notation

REVISER’S NOTE.

      The regulation of the State Board of Health filed with the Secretary of State on March 25, 1999 (LCB File No. R129-98), the source of this section (section 63 of this regulation), contains the following provision not included in NAC:

      “Sec. 117.  The amendatory provisions of section 63 of this regulation [NAC 444.8322] apply only to nitrate removal wastewater treatment units that are constructed or repaired on or after the effective date of this regulation [March 25, 1999].”