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<br /> <br />ATTACHMENT D <br /> <br />Exhibit 2-1: Stormwater Management Facility Application Table <br /> <br />Stormwater Credit Given with Associated Design Approach <br />Management <br />Pollution Flow Control Destination <br />Reduction <br />Facility Type <br />Eco-roof & roof garden Simplified NA <br />Simplified <br />1 <br />Pervious pavement Simplified Performance <br />Simplified <br />1 <br />Contained planter Simplified NA <br />Simplified <br />1 <br />Tree credit Simplified NA <br />Simplified <br />1 <br />Infiltration planter Simplified Presumptive <br />Simplified 3 <br />1 <br />Flow-through planter Simplified NA <br />Simplified <br />1 <br />Vegetated swale Simplified Presumptive <br />Simplified 3 <br />1 <br />Grassy swale < 15,000 Simplified Presumptive <br />Simplified 3 <br />1 <br />sq-ft impervious area <br />Grassy swale > 15,000 Presumptive NA Presumptive <br />3 <br />sq-ft impervious area <br />Street swales Simplified Presumptive <br />Simplified 3 <br />1 <br />Vegetated filter strip Simplified Presumptive <br />Simplified 3 <br />1 <br />Vegetated infil. basin Simplified Presumptive <br />Simplified 3 <br />1 <br />Sand filter Simplified Presumptive <br />Simplified 3 <br />1 <br />Wet pond Presumptive NA NA <br />Extended wet det. pond Presumptive Presumptive NA <br />Dry detention pond Presumptive Presumptive NA <br />4 <br />Treatment wetland Presumptive Presumptive NA <br />Manufactured Performance NA NA <br />treatment technology <br />Structural det. facility NA Presumptive NA <br />Spill control manhole NA NA <br />Presumptive <br />2 <br />Rainwater harvesting Performance Performance NA <br />Private soakage trench NA Presumptive Presumptive <br />Public infil. sump NA Presumptive Presumptive <br />Private drywell NA Presumptive Presumptive <br /> <br />Exhibit 2-1 Notes: <br />The performance approach may be used to downsize these simplified approach facilities when flow control <br />1 <br />is not required. <br />Spill control manholes receive credit for oil removal only; additional pollution reduction facilities will be <br />2 <br />required to meet basic water quality management. <br />Surface Infiltration Facility <br />The design criteria must be used to receive destination credit. <br />3 <br />Vegetated or grassy swales must be integrated into the bottom of dry detention ponds to receive pollution <br />4 <br />reduction credit. <br /> <br />