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2. Identify assumptions regarding existing and future land use and effects of offsite <br />✓ detention on peak flows. <br />D. Proposed Drainage System Description <br />1. Identify how offisite stormwater is collected and conveyed through the site and <br />r ultimately to the receiving water(s). <br />2. Identify sub - basins and describe, in general terms, how onsite stormwater is <br />collected and conveyed through the site for each location where stormwater is <br />discharged from the site. <br />3. Describe detention volumes, release rates and pool elevations. <br />4. Identify the difference in elevation between pond invert and the groundwater <br />' table. <br />5. Describe how stormwater is discharged from the site, including both <br />concentrated and dispersed discharges. <br />6. Describe stormwater quality facilities. <br />✓ 7. Describe maintenance access aspects of design. <br />8. Describe easements and tracts for drainage purposes, including limitation on <br />use. <br />E. Drainage Facility Maintenance <br />1. Identify responsible parties for maintenance of each drainage and water quality <br />facility. <br />✓ 2. identify general maintenance activities and schedules. <br />111. DRAINAGE ANALYSIS AND DESIGN CRITERIA <br />A. Regulations <br />1. Identify that analysis and design was prepared in accordance with the <br />✓ provisions of the Manual. <br />2. Identify other regulations or criteria which have been used to prepare analysis <br />iJ A and design. <br />B. Development Criteria <br />1. Identify drainage constraints placed on the project, such as by a major <br />drainage study, floodplain study or other drainage reports relevant to the <br />project. <br />2. Identify drainage constraints placed on the project, such as from major street <br />alignments, utilities, existing structures, and other developments. <br />C. Hydrologic Criteria <br />(If Manual was followed without deviation, then a statement to that effect is all <br />that is required. Otherwise provide the following information where the criteria <br />used deviates from the Manual.) <br />1. Identify how storm runoff peak flows and volumes were determined, including <br />✓ rainfall intensity or design storm. <br />2. Identify which storm events were used for minor and major flood analysis and <br />✓ design. <br />a < 3. Identify how and why any other deviations from the Manual occurred. <br />D. Hydraulic Criteria <br />(If Manual was followed without deviation, then a statement to that effect is all <br />that is required. Otherwise provide the following information where the criteria <br />used deviates from the Manual.) <br />1. Identify type(s) of streets within and adjacent to development and source for <br />rV� allowable street capacity. <br />2. Identify which type(s) of storm inlets were analyzed or designed and source for <br />ti ra allowable capacity. <br />3. Identify which type of storm sewers which were analyzed or designed and <br />v Manning's n- values used. <br />Page 2 of 4 <br />