NAC461A.130. Grading and drainage.

     1. The grading of land surfaces in a mobile home park must slope downward from:

     (a) Patios and mobile home stands;

     (b) Skirting and foundations; and

     (c) Water wells,

Ê to adequate outfalls or drainage swales discharging to adequate outfalls.

     2. The objectives of grading a mobile home park are to:

     (a) Preserve as many desirable features of the site as is practicable;

     (b) Divert surplus water away from the mobile homes, mobile home stands and other structures in the mobile home park;

     (c) Prevent any accumulation of standing water or saturation of the soil that would be detrimental to the structures and use of the mobile home lots;

     (d) Provide for the disposal of surplus water except as desired for controlled irrigation;

     (e) Provide for safe and convenient access to and use of the mobile home lots; and

     (f) Protect the mobile home park against erosion.

     3. Each mobile home stand must, unless a subsurface structure is provided for drainage, have a crown or gradient for surface drainage that is acceptable to the agency for enforcement. A surface or subsurface structure for drainage must be provided at the perimeter of each mobile home stand to receive excess water.

     4. The system of drainage must be designed to accommodate runoff from storms. Runoff must be calculated on the basis of foreseeable amounts of storm water that may be contributed to the runoff from areas outside the mobile home park and each lot and other areas within the mobile home park.

     5. All areas of a mobile home lot must slope to drainage structures on the lot or to areas of lower elevation off the lot.

     6. Where necessary, drain inlets or catch basins must be installed with emergency overflows to prevent the flooding of mobile home stands or wells or damage to other structures upon failure of the system underground drainage.

     (Added to NAC by Mfd. Housing Div., eff. 6-29-84; A by R055-02, 7-18-2002)