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Section III <br />Deer Hill Road Wet Detention Basin/Wetland <br />A.WET DFTFNTinV BASI\'/WETLAND <br />1. Cjnsiderationi <br />A two csll wet deter.iion basin/weUatid will be constructed on private property along the <br />northeast tribuory in the vicinity of Deer Hiil Road, nie basin’s function is to reduce the <br />hivh nutrient and sediment loading from the nonheast tributary prior to further treatment of <br />both tributaries by the County Road No. 6 basin. The Deer Hill Road basin was designed to <br />maximize basin area and volume to the extent that the original goals for phosphorus removal <br />effictency, documented in the feasibility study, were achieved by the Deer HiU Road/County <br />Road No. 6 basin systems. Final design plans are contained in Appendix A. <br />A permanent normal pool will be created at elevation 964.5. the existing channel bottom <br />elevation. The permanent pool is important for the same reasons presented for the County <br />Road No. 6 Basin in Section II. <br />The basin is configured into two cells and designed to promote plug flow conditions, <br />improving nutrient removal efficiency and minimizing maintenance costs. <br />The basin is designed with an extensive wetland fringe approximately 50 feet in width and <br />ranang from elevation 964.5-958. The wetland fringe surrounds the open water and is <br />constructed at a 8:1 slope. A 1.9 acre wetland IS inches in depth will be created along the <br />eoit edge of the basin. <br />8