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1 <br /> • IF - 1 ? _ 93 14ED 9 : 1 1 NA I ER -STE W ART & ASSOC _ P _ 0S <br /> Mr, Steve Rohlf <br /> March 16, 1993 <br /> Page Two <br /> the development of two lots. There is a third small wetland at the extreme south <br /> end of the plat, again proposed to be filled for the development of two lots. <br /> Since the City is the LOU, they will be involved in the decision as to whether or <br /> not the filling of these wetlands is appropriate. <br /> 2. Wetland boundaries are labeled as approximate on the preliminary plat. Slight <br /> deviations in these approximate boundaries could render several lots unbuildable. <br /> Exact determinations of the wetland boundaries need to be made in order to <br /> review the buildability of all lots. <br /> 3. All wetland issues related to this preliminary plat should be submitted to the <br /> Department of Natural Resources and Corps of Engineers for review and <br /> permitting if required. <br /> C. Grading Plan <br /> 1. The Grading Plan has several areas where rear lot drainage is not contained <br /> within rear lot drainage easements, but rather sheets randomly across the back of <br /> various lots. Adjustments to the grading plan need to be made to contain all <br /> drainage within easement areas. <br /> 2. There are areas where street grades in cul-de-sacs and curves are too flat. These <br /> flat grades will lead to poor drainage along curb lines. In these areas, grades <br /> need to be increased to eliminate flat areas. <br /> 3. There are areas adjacent to the wetlands where the proposed grading is extremely <br /> steep. It is unclear how these areas can be graded to match the edge of the <br /> existing wetland and still have a maintainable slope. It is recommended that areas <br /> on the grading plan with these steep slopes be revised. <br /> 4. Soil borings indicating water table and/or mottled soil need to be provided in <br /> order to review the development plan relative to lowest floor elevations. <br /> • D. Jilities and Diinage <br /> 1. The City Council has authorized a feasibility study for the extension of trunk <br /> sanitary sewer and water to serve this plat. This feasibility study will address <br /> issues relative to available water pressure, the necessity to loop watermains, and <br /> the extent to which this plat can be served by gravity sewer and which areas will <br />