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Meetings conducted between Departmental staff and you in addition to those you <br />in with the staff of the St. Johns River Water Management District have <br />indicated that you feel mitigation is not necessary for the following reasons: <br />1. The existing wetlands contain exotic and nuisance species which you claim will <br />be removed prior to incorporation of their incorporation within the treatment <br />system. <br />2. The existing wetlands are currently acting as a treatment system to purify the <br />reused water applied to the sod farm. <br />3. The wetland areas will be enhanced by the maintained water levels within their <br />treatment cells. <br />In lieu of mitigation, it will be incumbent upon you to fid substantiate your claims <br />with field data and submit the following information for the Department's <br />consideration: <br />1. An Inventory of each wetlands' vegetation and their approximate percentages <br />(without the nuisance and exotic • species). <br />2. A scaled map with survey information showing the relationship between each <br />wetland area and any surface drainage feature that would act to convey the <br />reused water to the wetland. <br />3. Water quality testing at locations upgradient and downgradient of the wetland <br />areas to determine the extent, if any, that the wetlands are functioning as <br />purifying agents. Water quality testing should include but may not be limited <br />to total nitrogen and phosphorous. <br />4. Establishment. of the hydroperlod of each wetland area. Water levels and <br />Indicators should be referenced to the National Geodetic Vertical Datum. <br />Periods of Inundation should also be noted. <br />5. A study addressing the overall hydrology of each wetland. In addition, the <br />Impacts by (1) current land use and (2) their proposed incorporation within the <br />wetland treatment system should also be addressed. <br />6. An explanation addressing the sustainability of the existing wetlands with and <br />without the effluent of the treatment plant. <br />7. According to sheet 3 of the construction plans, only two wetland areas <br />(cypress domes) are iftoposed to be incorporated within the treatment cells. <br />If this is not correct, please indicate. What are the boundary limits of the <br />wetlands that will not be affected since the treatment cell bottoms will be <br />excavated below grade? <br />B. What is the proposed planting spacing on the treatment cells' side slopes and <br />bottom? Will vegetation be planted within the wetland areas? If so, then what <br />type of vegetation will be planted? <br />95 <br />BOOK PAGE. 66 <br />October 25, 1994 <br />