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EXHIBIT A: EXISTING CHAPTER 927 <br />Storm Water Management and Urban <br />Sediment Pollution Abatement Svstems 927.04 <br />(7) The types of soils within or affected by the development area and the <br />location of all highly erodible or unstable soils; <br />(8) Erosion and sediment control practices to be employed on the <br />development area: <br />(A) Their location and, <br />(B) Where applicable, their size, detail drawing, maintenance <br />requirements, and design calculations; <br />(9) The schedule, phasing, and coordination of construction operation and <br />erosion and sediment control practices; <br />(10) Storm water provisions, including <br />(A) A general description of the storm water management strategy; <br />(B) The location and design calculation for all permanent storm water <br />conveyance, detention, and retention structures; and <br />(C) Hydrologic and hydraulic studies for development areas greater <br />than one acre: <br />(1) A hydrologic and hydraulic study of each subdivision or <br />development shall be submitted as part of the construction <br />drawings. <br />(2) These studies will be used to establish the adequacy of the <br />drainage system of the development site. As part of these <br />studies, the adequacy of the storm drainage facility <br />necessary to carry the runoff from the initial storm design <br />shall be shown. Also the flow routes and drainageway <br />necessary to convey the 100 -year storm (the emergency <br />flow way) through the development shall be shown. All <br />necessary easements shall be shown. <br />(3) 'These studies will also be used to establish the adequacy of <br />the drainage system of the proposed development to receive <br />and convey any initial and mayor storms from dominant <br />(upstream) property. <br />(4) These studies will also be used to establish the adequacy of <br />the drainage system of the proposed development so as not <br />to create or worsen drainage problems downstream. As <br />part of these studies, storage facilities will be located and <br />identified by type. <br />(5) Submittals for review shall include, but not be limited to: <br />A. 1" 200' Scale Soil Map with the following: <br />1. Contours shall be 2' intervals. <br />2. All soil types shall be noted along with all <br />ground cover and woodlands and all other <br />ground conditions noted. <br />3. "The total drainage area tributary to the <br />proposed project including the project shall <br />be noted. (Before and after development <br />conditions must be noted.) <br />