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• , <br /> •. � ' � a� � r•p�, <br /> i <br /> ' � � <br /> � �irr oF �� �c•wowcs <br /> 'ur�AII�IAGE CALCU.ATION St�MI55I0N FOFiM <br /> Date 10/11/96 � <br /> Pm�ect Name: FR�TDLY FOOD MART IlaC E ae <br /> ProJect Locaticn: interaection of Casino Road 6 Sth Av�ue West <br /> Submitted By: Trepanier nnqineering <br /> Orainage Basin: Merrill a Ring c�ek <br /> Pre-Development Design Storm (yr): 70 � <br /> Post-Development Design Stonn (yr): 25 � � • . <br /> Area ot Site (ac): 0.610 <br /> Existing Slope ot Site (%): 5.0 - 40.0 , <br /> Existing Ground Cover � <br /> Noods/Forest (ac): 0.302 • <br /> � Lawns/Landscepin9 (ac : 0.166 <br /> Earth/Gravel (ac): 0.088 � <br /> • Impervious (ac): 0.054 � <br /> Existinp Run-0Pf (cfs): (0.302)(0.650) . (0.166)(0:41 )+(0.088)(0.86)+(0.054) <br /> (1.40) = 0.416• cfs <br /> Proposed Ground Cover • ' • <br /> • Lawns/Landscaping (ac): 0.169 <br /> Earth/Gravel (ac): <br /> Impervious (ac)I: — 0.441 <br /> Detention:Stora�7e Required (cf/ac) <br /> Lawns/Landscaping (cf/ac): N/A <br /> Earth/Gravel (cf/ac): ' <br /> Impervious (cf/ac): _ 672 <br /> Total Detention Storage Required I <br /> . Lawns/Landscaping (cf): N/A <br /> Earth/Gravel (cf): <br /> Impervious (cf): . 41• <br /> Total Storage Requ e c : <br />