Section 10.03 Identification of Mountainside Slopes and Environmentally Sensitive Features

   (1)   A slope and site analysis is required for a proposed development if the Zoning Administrator determines that a property contains one or more slopes with a fifty (50) foot run perpendicular to the contour lines that rise twenty percent (20%) or greater.

Figure 10.01: Method of determining whether a twenty percent (20%) slope exists on a given property.

      (A)   The slope analysis shall have the following information:

         1)   A topographic map illustrating contours at two (2) foot intervals at a minimum scale of one (1) inch equal to twenty (20) feet. The area for each slope shall be illustrated on the map as follows:

            a)   Slopes less than 19.99%.

            b)   Slopes between 20% and 24.99%.

            c)   Slopes between 25% and 29.99%.

            d)   Slopes 30% and greater.

         2)   All grading plans shall include a calculation of the amount of disturbed area in each of the slope categories listed above.

      (B)   The site analysis shall have the following information:

         1)   Identification of any ridgeline bisecting the site illustrated in plan view and cross section.

         2)   Identification of any natural wash (including the respective floodway and floodplain) bisecting the site. If the wash is recognized by the Corps of Engineers as waters of the United States, it shall be identified as such.

         3)   A geotechnical analysis of rock formations and soils.

         4)   Delineation of all active and inactive mines, mine shafts, well sites, water tanks, and significant stands of vegetation.