NAC444.681. Design criteria.

     1. A new municipal solid waste landfill unit or lateral expansion must be constructed:

     (a) In accordance with a design approved by the solid waste management authority that is sufficient to protect the waters of the State from degradation by pollutants or contaminants; or

     (b) With a composite liner and a system for the collection of leachate which is designed and constructed to maintain less than a 30-centimeter depth of leachate over the liner. The composite liner must have an upper component consisting of a flexible membrane liner of at least 30 mils and a lower component consisting of a layer of compacted soil that is at least 2 feet with a hydraulic conductivity of no more than 10^-7 centimeters per second. Components of the flexible membrane liner consisting of high density polyethylene must be at least 60 mils. The flexible membrane liner must be installed in direct and uniform contact with the compacted soil.

     2. To approve the design of a new municipal solid waste landfill unit or lateral expansion, the solid waste management authority shall consider:

     (a) The hydrogeologic characteristics of the facility and surrounding land;

     (b) The climate of the area;

     (c) The volume and physical and chemical characteristics of the anticipated leachate; and

     (d) Any other relevant factors.

     (Added to NAC by Environmental Comm’n, eff. 11-8-93)