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. 2 (1) Floodways: multiply the area within a floodway by a factor of 1.0. <br /> 3 <br /> 4 (2) Wetlands: multiply the area of designated wetlands by a factor of 0.95. <br /> 5 <br /> 6 (3) Major Rock Formations: multiply the area of major rock formations by a factor of <br /> 7 0.90. <br /> 8 <br /> 9 (4) Steep Slopes: multiply the area of land with natural ground slopes exceeding 25 <br /> 10 percent by a factor of 0.80. <br /> 11 <br /> 12 (5) Land traversed by high-tension electrical transmission lines (69kv or higher): <br /> 13 multiply the area within the power easement by a factor of 0.75. <br /> 14 <br /> 15 (6) Floodplains: multiply the 100-year floodplain by a factor of 0.5. <br /> 16 <br /> 17 (7) Moderately steep slopes: multiply the area with natural ground slopes of between 15 <br /> 18 and 25 percent by a factor of 0.4. <br /> 19 <br /> 20 (8) Land traversed by underground utility lines (not within a street right of way): <br /> 21 multiply the area within the easement (or if no easement exists, the area within ten <br /> 22 feet on either side of the line)by a factor of 0.3. <br /> 23 <br /> 24 (d) If the development is not to be served by OWASA owned water and sewer lines, then the <br /> 25 maximum number of dwelling units shall be determined in reference to an actual yield plan prepared by the <br /> 26 developer in accordance with the provisions of this subsection. The yield plan shall be a conceptual layout <br /> 27 of a single family residential subdivision (containing proposed lots that meet the minimum lot size <br /> 28 requirements of the district where the property is located, streets, easements, and other pertinent features) <br /> 29 that could be developed within the tract in question in accordance with the provisions of this chapter. <br /> 30 Although the yield plan must be drawn to scale, it need not reflect any great degree of site engineering. <br /> 31 However, it must be a realistic layout reflecting a development pattern that could reasonably be expected to <br /> 32 be implemented, taking into account the topography of the land and natural constraints, existing easements <br /> 33 and encumbrances, and the applicable provisions of this chapter, particularly those relating to open space. <br /> 34 recreational facilities, and street rights of way. In addition, the yield plan shall be prepared under the <br /> 35 assumption that each lot will be served with an individual septic tank located on the same lot as the house it <br /> 36 serves. The applicant shall submit evidence (in the form of a preliminary soils evaluation from Orange <br /> 37 County or comparable information from a qualified source) that there appears to be sufficient suitable soil <br /> 38 within each of the proposed lots to support a septic tank system serving at least a three-bedroom house. <br /> 39 When a yield plan meeting the requirements of this subsection has been submitted, the zoning administrator <br /> 40 shall confirm this in a letter to the developer, which letter shall indicate the maximum number of dwelling <br /> 41 units that can be developed on the tract in accordance with this subsection. <br /> 42 <br /> 43 SECTION 3. Section 15-198 is amended by making the following changes: <br /> 44 <br /> 45 (a) Subsection 15-198(b)is amended by adding two new subsections as follows: <br /> 46 <br /> .................................................-.................................................................-.............................................................................. <br /> 'Page 3 of 35 <br />