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CJ <br />CITY OF EVERETT PUBLIC WORKS <br />DPAINAGE CALCULATION SUBMISSION FORM <br />Date 9-7(.'�J <br />Project Name: GtS Develoolr,14 <br />Project Location: LOB-, 23 ca.r,r( 2-{ P»vrrl h,rrr,I Trods Dlel[ <br />Submitted By: W.o :,Itr11 Svc qrc/nrS . -irK <br />Drainage Basin: �I,-A, h••< (- Cram <br />Pre -Development Design Storm (yr): 5 u- <br />Post-Development Design Storm (yr): 25 �4 Y' <br />Area of Site (ac): ;,07 A �el , /,/) , (r s r.,,/i r- .6 <br />Existing Slope of Site (%): tt)u{A1rel a•v« /-?M <br />Existing Ground Cover <br />Woods/Forest (ac): 7• o7 A C <br />Lawns/Landscaping (ac): we, <br />-Earth/Gravel (ac): wo <br />Impervious (ac): ,vn <br />Existing Run -Off (cfs): n. 1-3 IA? <br />Per acre - r 5� <br />Proposed Ground Cover <br />Lawns/Landscaping (ac): o. 11/ Z o % <br />( ��1 Earth/Gravel (ac): <br />Impervious (ac): ?. i& A•e 7."% ?I <br />/.R9 n (e^S fo <br />1 ( a Detention Storage Required (cf/ac) �73zo4 <br />Lawns/Landscaping (cf/ac): ;5 37.0 <br />Earth/Gravel (cf/ac): +-/,:rrr''' <br />Impervious (cf/ac): yInoy,U <br />�U 1 <br />Total Detention Storage Required a <br />Lawns/Landscaping (cf): '7 . 2 Z <br />Earth/Gravel (cf): <br />Impervious (cf): 3. 9 <br />Total Storage Requ red 707 /55 1 ff 3 <br />16In l .ai%.., .> le, ram( ; r r ��1,o�PC)lo./j3,�1 00.5�/ PCs <br />Z <br />IID <br />