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CCP 09-10-2001
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CCP 09-10-2001
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5/8/2007 1:23:52 PM
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<br />I <br /> <br />I <br />, <br /> <br />41 <br /> <br />I <br /> <br /> <br /> <br />I <br /> <br />I, <br />I <br /> <br />Extended Detention Pond <br /> Design 1 0 ~ 0 ~ e 0 Moderate <br /> Design 2 . e 0 e G 0 Moderate <br />Wet Pond Design 3 . G 0 e 0 0 High <br /> Design 4 0 e ~ ~ ~ 0 Moderate <br /> Design 5 0 e ~ ~ ~ 0 Moderate <br /> Design 6 . ~ e e 0 0 High <br />Infiltration Trench <br /> Design 7 0 e e ~ 0 0 Moderate Key <br /> Design 8 . e e ~ . 0 High Gl 0 to 20% Removal <br /> Design 9 . 0 ~ . . . High o 20 to 40% Removal <br />InfIltration Basin e 40 to 60% Removal <br /> Design 7 0 e e G e ~ Moderate o 60 to 80% Removal <br /> Design 8 . e e 0 . ~ High . 80 to 100% Removal <br /> Design 9 . ~ 0 . . . High o Insufficient Knowledg <br />Porous Pavement <br /> Design 7 e ~ e G e 0 Moderate <br /> Design 8 . ~ G 0 . . High <br /> Design 9 . ~ 0 . . . High <br />Water Quality Inlet <br /> Design 10 0 0 0 0 0 0 Low <br />Futer Strip <br /> Design II ~ 0 0 0 ~ 0 Low <br /> Design 12 . e e Ell . 0 Moderate <br />Grassed Swale <br /> Design 13 0 0 0 0 0 0 Low <br /> Design 14 ~ ~ 0 ~ 0 0 Low <br />Design I: F'1rSl,flush runoff volume detained for Design 7: Facility exfitrates fust-flush; 05 inch <br /> 6-12 hours. nmoff/impervious acre. <br />D<sign 2: Runoff volume produced by 1.0 inch, Design 8: Facility exfiltrates one inch runoff volume per <br /> detained 24 hours. impervious acre. <br />Design3: As in Design 2, but with shallow marsh in Design 9: Facility exfiltrates all runoff, up to the 2 year <br /> bottom stage. design storm. <br />Design 4: Pennanent pool equal to 05 inch storage Design 10: 400 cubic feet wet storage per impervious acre. <br /> per imercious acre. Design 11: 20 foot wide turf strip. <br />D<sign 5: Permanent pool equal to 25 (Vr); where Design 12: 100 foot wide forested strip, with level spreader. <br /> Vr: mean storm runoff. Design 13: High slope swales, with no check dams. <br />Design 6: Pennanent pool equal to 4.0 (Vr); approx. Design 14: Low gradient swales with check dams. <br /> 2 weeks retention. <br />Figure. 16: Comparative Pollutant Removal Of Urban BMP nes"igns <br />S()urc~: Thomas R.Schueler, Controlling Urban Runoff: A Practkal MatW4l for PkwUng and Duigning Urban. BMPs. (Metropolitan <br />Washington Council of Governments, July, 1987) p. 16. <br /> <br />I <br /> <br />I <br /> <br />II <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br />I <br />I <br /> <br />I <br />, <br /> <br />I <br />
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