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• Provide flood storage volume within the freeboard area that is at least 50% of <br />the flood storage volume below the 100-yr HWL; and <br />• 25% outlet obstruction does not increase the 100-yr HWL by more than 1'; <br />and <br />• Adequate EOF from basin to provide assurance that 1' freeboard will be <br />maintained for proposed low opening <br />❑ Low Floor Elevation: <br />• 4' above the currently observed groundwater elevations in the area <br />• 2' above the elevation of any known historic high groundwater elevations <br />• 2' above the critical 100-yr HWL <br />• 1' above EOF <br />• For landlocked basins, low floor must be 1' above the EOF or 2' above the greater of <br />the 100-year, 24-hour rainfall or the 100-year, 10-day snowmelt <br />Erosion and Sediment Control (Rule D) <br />❑ SWPPP Provided <br />❑ Identification of all temporary and permanent erosion control measures. Includes, but is not <br />limited to: <br />0 Silt Fence <br />0 Storm Inlet Protection <br />o Rock Entrance <br />o Street Sweeping <br />0 Restoration <br />❑ Erosion Control Contact Person <br />Floodplain Alteration (Rule E) <br />❑ Floodplain elevations shown on plan <br />❑ Computation of change in flood storage capacity resulting from proposed grading <br />❑ Structure or embankments placed within the floodplain capable of passing the 100-year flood <br />without increasing the elevation of the 100-year flood profile. <br />❑ 2-foot of freeboard between bottom of structures and 100-year flood profile. <br />Wetland Alteration (Rule F) <br />❑ Existing and proposed wetland areas shown on plans <br />❑ Wetland delineation report authorized for WCA use and consistent with BWSR guidance <br />❑ Wetland replacement plan application conforming to WCA requirements <br />❑ Functions and values assessment report involving at least one acre of wetland impact <br />