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ciTv oF �Err aue�c wowcs <br />DRAINAGE CALCULATION SUBMISSION FORM <br />Date June 13, 1995 <br />Project Name: Everett Clinic Parking Lot <br />Project Location: Northeast corner of 39th and Hoyt <br />Submitted By': Paul Cavassa, Jr. <br />Drainage Basin• 36th Street c�inbinad sewers <br />Pre-Development Design Storm (yr): 10 <br />?ost-Development Design Stoxm (yr): 10 <br />Area of Site (ac): 0.325 acres <br />Existing Slope of Site (%): 4% <br />Existing Ground Cover <br />Woods/Forest (ac): <br />Lawns/Landscaping (ac : 0.244 <br />tarth/Gravel (ac): <br />Imperv_.ous (ac): 0.081 <br />Existing Run-Off i:-Fs): (0.244)(0.3771 + (0.081)(1.38) <br />per acre 0.3Z5 = 0.627 cfs <br />Proposed Ground Cover <br />Lawns/Landscaping (ac): 0.058 <br />Earth/Gravel (ac): <br />Impervious (ac): 0.268 <br />�etention Storage Required (cf/ac) <br />Lawns/Landscaping (cf/ac): N/A <br />Earth/Gravel (cf/ac): — <br />Imperviou= (cf/ac): 3 <br />Total Detention Storage Required <br />Lawns/Landscaping (cf): N/A <br />Earth/Gravel (cf): <br />Zmpervious (cf): 115 c� <br />Total Storage Required c, 115 cf <br />