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xr� <br />r� r� <br />C H <br />9Hfn <br />�t M <br />i1 H P9 <br />xx CO HH+, <br />t'7 Z [� 0 <br />H t7 <br />OH <br />Pi 0 <br />CITY OF EVERETT PUBLIC WORKS <br />0. 0 <br />DRAINAGE CALCULATION SUBMISSION FORM <br />H z <br />Date 4�5�90 <br />H r3 <br />�y <br />p :nH <br />Project Name: eieLTV-F ?6INT APAKTr-IErJ1"S <br />00EA <br />Si,-vre <br />t <br />Project Location: <br />H o W <br />Submitted By: ]bDDS Fes- �(L's <br />Drainage Basin: 9aAeZ LAI;s <br />Pre -Development Design Storm (yr): )o <br />Post -Development Design Storm (yr): 25 <br />Area of Site (ac): 1,92 AULX2 <br />Existing'Slope of Site M : 7.5`/ <br />j <br />Existing Ground Cover <br />Cn <br />Woods/Forest (ac): <br />131 Acres <br />Lawns/Landscaping <br />(a —CT 0 <br />Earth/Gravel (ac): <br />Impervious (ac): <br />Existing Run -Off (cfs): <br />0.32 cfs <br />per aczer <br />0.24 ch/nc <br />Proposed Ground Cover <br />Lawns/Landscaping (ac): 0.GG <br />Earth/Gravel (ac): <br />( Impervious (ac): <br />rOr� 4 3sI I + (7)y6) (n) . 29,590 <br />Detention Storage Required (cf/ac) <br />Lawns/Landscaping (cf/ac): 472 <br />—. Earth/Gravel (cf/ac): 0 <br />Impervious (cf/ac): 'Z749 <br />�1 Total Detention Storage Required <br />\ Lawns/Landscaping (cf): 30 <br />Earth/Gravel (cf): <br />Impervious (cf): <br />Total Storage RequTRF76TT2149 <br />V <br />