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§ 83.08.020 Applicability.
   (a)   Slope Gradient of 15 Percent or Greater. The standards contained in this Chapter apply to all uses and structures within areas having a natural slope gradient of 15 percent or greater over the area being graded and requiring a Grading Permit. For the purpose of this Chapter, slope shall be computed as set forth in § 83.08.040(b) for the area being graded before grading is commenced.
   (b)   Site Conditions Requiring Hillside Grading Review. If the slope gradient is 15 percent or greater and if any one of the following thresholds applies on a particular site meeting the criteria set forth in Subdivision (a) above, a full analysis and compliance with this Chapter shall be required and a Hillside Grading Review shall be conducted in compliance with § 83.08.030 (Hillside Grading Review):
      (1)   The volume of proposed grading is more than 500 cubic yards per lot or more than a total of 2,000 cubic yards for the total project.
      (2)   If retaining walls or the proposed cut or fill slopes greater than 15 feet in height will be visible and exposed to permanent public view or will be adjacent to designated open space or public lands.
      (3)   The width of proposed cut or fill slopes is greater than 75 feet in the Valley and Mountain Regions and 150 feet in the Desert Region as measured at the widest point of the slope.
      (4)   The area of proposed disturbance is more than 50 percent of the site area, or the proposed disturbed area exceeds 10,000 square feet, whichever is less.
(Ord. 4011, passed - -2007; Am. Ord. 4043, passed - -2008)