NAC278.450. Percolation tests.

     1. Before the Division or local agency may approve the use in a subdivision of a system for subsurface disposal of sewage or private systems for disposal of sewage, the developer must comply with the conditions set forth in this section.

     2. Percolation tests of soil must be made at the rate of four tests per 10 acres or fraction thereof and one additional test for each additional 10 acres or fraction thereof. For example, 10 such tests are required for a 67-acre subdivision. In a subdivision covering an area of more than 1 square mile, at least 16 percolation tests per square mile are required for the initial submission of data. Complete results of these tests must be submitted to the Division and to the local agency for review.

     3. In any subdivision where the characteristics of soil percolation are questionable, the developer may be required to make additional tests. The location of test holes must be shown on the plan.

     4. If the percolation tests show that the times for seepage exceed 60 minutes per inch, the method of absorption by soil must not be used for disposal.

     [Bd. of Health, Subdiv., Condo., & PUD Reg. part § 43, eff. 9-15-82]—(NAC A by Environmental Comm’n by R152-08, 12-17-2008)