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ORDINANCE NO. 2022-18 <br />Page 11 <br />relevant offsite SCMs should be depicted. For each SCM, include the <br />following: <br />a. An individual identification number; <br />b. Location and size; <br />Final site conditions and detail drawings of stormwater inlets and <br />permanent SCMs. Details of SCMs shall be drawn to scale and <br />shall show relevant volumes, elevations, and sizes of contributing <br />drainage areas; <br />d. A completed Ohio EPA WQv Calculator Spreadsheet and/or <br />Runoff Reduction Spreadsheet or other equivalent compliance <br />tools provided by Ohio EPA; and <br />e. Any supplemental information requested by the Village Engineer. <br />3. Required Calculations: The applicant shall submit calculations for <br />projected stormwater runoff flows, volumes, and timing into and through <br />all SCMs for flood control, channel protection, water quality, and the <br />condition of the habitat, stability, and incision of each water resource and <br />its floodplain. These submittals shall be completed for both pre- and post - <br />C; development land use conditions and shall include the underlying <br />assumptions and hydrologic and hydraulic methods and parameters used <br />for these calculations. The applicant shall also include critical storm <br />determination and demonstrate that the runoff from offsite areas have <br />been considered in the calculations. For each SCM, identify the drainage <br />area and size in acres, percent impervious cover within the drainage area, <br />volumetric runoff coefficient, peak discharge, and the time of <br />concentration for each sub -watershed. Pervious and impervious areas <br />should be treated as separate sub -watersheds unless allowed at the <br />discretion of the Village Engineer. Identify the SCM surface area, <br />discharge and dewatering time, outlet type and dimensions. <br />4. Inspection and Maintenance Agreement. The Inspection and Maintenance <br />Agreement required for SCMs under this regulation is a stand-alone <br />document between the Village and the applicant. <br />5. Inspection and Maintenance Plan. This plan will meet the requirements of <br />the Construction General Permit and will be developed by the applicant <br />and reviewed by the Village Engineer. Maintenance requirements of each <br />SCM during and after construction should be included. Once the <br />Inspection and Maintenance Plan is approved, a recorded copy of the Plan <br />must be provided to the property owner or association that will be <br />responsible for long-term operation and maintenance of the BMP and <br />