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363 xi. A landscape plan drawn to an appropriate scale including <br />364 dimensions and distances and the location species. size <br />365 and description of all existing vegetation. clearly locating <br />366 and describing any vegetation proposed for removal and <br />367 all proposed landscape materials which will be added to <br />368 the site as part of the development. <br />369 x. A proposed drainage plan of the developed site <br />370 delineating in which direction. the volume and at what rate <br />371 stormwater will be conveyed from the site and setting <br />372 forth the areas of the site where stormwater will be <br />373 allowed to collect and gradually percolate into the around <br />374 or be slowly released to stream or lake. The plan shall <br />375 also set forth hydraulic capacity of all structures to be <br />376 constructed or existing structures to be utilized including <br />377 volume of holding ponds and the design year of the <br />378 storm. <br />379 xi. An erosion and sedimentation control plan indicatina the <br />380 type. location and necessary technical information on <br />381 control measures to be taken both during and after <br />382 construction. including a statement expressing the <br />383 calculated anticipated gross soil loss expression in <br />384 ton/acre/year both during and after construction. The <br />385 aross soil loss shall not exceed five tons per acre per year <br />386 during construction or two tons per acre per year during <br />387 construction when the site is adiacent to a water body or <br />388 watercourse: and one-half ton per acre per year after the <br />389 construction activities are completed as calculated in <br />390 accordance with the Uniform Soil Loss Eauation. <br />391 Wetlands and other natural water bodies shall not be <br />392 used as primary sediment traps during or after <br />393 construction. <br />394 xii. A plan of erosion protection measures which shall make <br />395 maximum use of natural in -place vegetation rather than <br />396 the placing of new vegetation on site as erosion control <br />397 facilities. The use of natural erosion control devices shall <br />398 be preferred to the maximum extent over the construction <br />399 of artificial drainage devices including culverts. holding <br />400 ponds and ditches. The development shall be located in <br />401 such a manner as to minimize the removal of vegetation <br />402 and alteration of the natural topography. <br />10 <br />