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DRAFT <br />Storm Water Management and Urban <br />66E Sediment Pollution Abatement Systems 927.04 <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 major 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 />4. Legend must be provided noting the soils, <br />area in acres, and soils groups (before and <br />after development). <br />5. Copy of the U.S. Department of Agriculture <br />SCS Soil Survey of Cuyahoga County, Ohio <br />1980 or latest Edition, showing the entire <br />drainage area and sub-area. <br />6. All existing drainage facilities must be <br />noted, i.e., storm sewer culverts, lake and <br />swamps, etc.