NAC278.470. Soil conditions; groundwater; soil characteristics.

     1. As a further condition of the approval of a subsurface system or private systems for sewage disposal, the developer must have all the following items prepared and submitted to the Division and the local agency:

     (a) For a tentative map, a report containing a comprehensive log of the soil conditions existing throughout the area of the subdivision to a depth of at least 5 feet below the bottom of the proposed system for subsurface disposal. This report must be prepared by a professional engineer or other person who is qualified by training and experience to make such a report. For absorption by soil to be approved as a method of disposal, the soil cover throughout the area must be adequate to ensure that at least 4 feet of suitable soil lie between bedrock (or any other impervious formation) and the bottom of the trenches used to allow absorption in soil of the effluent from the septic tank.

     (b) For a tentative map, a statement of the present and maximum elevation of groundwater throughout the area of the subdivision. This statement must be prepared by a professional engineer or other person who is qualified by training and experience to prepare such a statement. A subsurface system for disposal of sewage must not be approved if there is evidence that groundwater rises to within 5 feet of the bottom of the trenches.

     (c) For a final map, a report presenting information in sufficient detail to demonstrate that the soil characteristics of all parcels of land within the subdivision will be suitable for a subsurface system for disposal of sewage. The report must be prepared by a professional engineer or other person authorized under state law to prepare such a report.

     2. The developer must inform the Division or local agency when test holes have been excavated, so that a representative of the Division or the local agency may inspect the holes.

     [Bd. of Health, Subdiv., Condo., & PUD Reg. § 44, eff. 9-15-82]—(NAC A by Environmental Comm’n by R152-08, 12-17-2008)