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~~".' Cfr#AGRfh <br />''~1 [~~VGL~ <br />~~J~' ~'~' L'Jfi,TEffcSffiG6~ <br />1 ~° May 2016 <br />e. Selection (source and justification) and/or calculations of runoff coefficients for <br />water quality volume determination, peak discharge control (curve <br />number/critical storm method), and rational method. <br />£ Existing data describing the soils throughout the site, including soil map units <br />including series, complexes, and association, hydrologic soil group, porosity, <br />infiltration characteristics, depth to groundwater, depth to bedrock, and any <br />impermeable layers. <br />g. If available, the quality of any known pollutant discharge from the site such as <br />that which may result from previous contamination caused by prior land uses. <br />h. The location and name of the immediate water resource(s) and the first <br />subsequent water resource(s). <br />i. The aerial (plan view) extent and description of water resources at or near the site <br />that will be disturbed or will receive discharges from the project. <br />If applicable, identify the point of discharge to a municipal separate storm sewer <br />system and the location where that municipal separate storm sewer system <br />ultimately discharges to a stream, lake, or wetland. The location and name of the <br />immediate receiving stream or surface water(s) and the first subsequent receiving <br />water(s) and the aerial extent and description of wetlands or other special aquatic <br />sites at or near the site which will be disturbed or which will receive discharges <br />from undisturbed areas of the project. <br />k. TMDLs applicable for the site [refer to TMDL community identifier table at <br />http://www.neohiostormwater.com/]; demonstrate that appropriate (SCMs) have <br />been selected to address these TMDLs. <br />For each SCM, identify the drainage area, percent impervious cover within the <br />drainage area, runoff coefficient for water quality volume, peak discharge, and <br />the time of concentration for each subwatershed per Appendix 1 of Ohio's <br />stormwater manual, Rainwater and Land Development. Pervious and impervious <br />areas should be treated as separate subwatersheds unless allowed at the discretion <br />of the community engineer. Identify the SCM surface area, discharge and <br />dewatering time, outlet type and dimensions. Each SCM shall be designated with <br />an individual identification number. <br />m. Describe the current condition of water resources including the vertical stability <br />of stream channels and indications of channel incision that maybe responsible <br />for current or future sources of high sediment loading or loss of channel stability. <br />2. Site map showing: <br />a. Limits of soil disturbing activity on the site. <br />b. Soils map units for the entire site, including locations of unstable or highly <br />11 <br />