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Determining Number of <br /> %i►-NTE H Cartridges for Flow Based <br /> ENGINEERED SOLUTIONS <br /> Systems <br /> CONTECH Stormwater Solutions Inc. Engineer: CRH <br /> Date 8/15/2014 <br /> Site Information <br /> Project Name Silver Lake Center <br /> Project State Washington <br /> Project Location Everett <br /> Basin ID Drive C <br /> Drainage Area, Ad 1.34 ac <br /> Impervious Area, Ai 0.91 ac <br /> Pervious Area, Ap 0.43 <br /> % Impervious 68% <br /> Runoff Coefficient, Rc 0.66 <br /> Water quality flow 0.14 cfs <br /> Peak storm flow 0.89 cfs <br /> Filter System <br /> Filtration brand StormFilter <br /> Cartridge height 12 in <br /> Specific Flow Rate 1.00 gp►n/ft` <br /> Flow rate per cartridge 5.0 gpm <br /> SUMMARY <br /> Number of Cartridges 13 <br /> ©2006 CONTECH Stormwater Solutions <br /> contechstormwater.com 1 of 1 <br />