Table 5-3

BMPs for Groundwater Recharge, Stormwater Runoff Quality and/or Stormwater
Runoff Quantity only with a Waiver or Variance

Best Mangement PracticesStormwater Runoff Quality TSS Removal Rate (%)Stormwater Runoff QuanityGroundwater RechargeMinimum Separation from seasonal high water table (ft)
Blue Roof0YesNoN/A
Extended Detention Basin40-60YesNo1
Manufactured Treatment Device50 or 80NoNoDependent upon the device
Sand Filter*80YesNo1
Subsurface Gravel Wetland90NoNo1
Wet Pond50-90YesNoN/A
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