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CITY OF EVERETT PUBLIC WORKS <br />DRAINAGE CALCULATION SUBMISSION FORM <br />Date r����89 <br />Pioject Name: 1{�,la I(onrt <br />Project Location: 3900 Block of Ruckcr <br />Submitted By: William FI Roberts/T,end Suryeyina <br />DTainage Basin: 36th St. combined sewers <br />Pre-Development Design Storm (yr): 70 <br />Post-Devzlopment Design Storm (yr): ]n _ <br />Area of Site (ac): _ 12 250 S F or �.28 ncre <br />Existing Slope of Site (�): 4% to f4' _ <br />2 vsudU � �a - <br />Existing Ground Cover (D•Z��%.ylcj }/007,������ <br />Woods/Forest (ac): � �� <br />Lawns/Landscaping (ac : n �14 prrs��— �,Zg,� <br />Earth/Gravel (ac): <br />Impervious (ac): 0.07 ncr� = p.G� c�s�� <br />Existing Run-Off (cfs): �J.G(o C�s�¢�, <br />Proposed Ground Cover <br />Lawns/Landscaping (ac) : n Il't Q n c r e <br />Earth/Gravel (ac): 0 0097 acre <br />Impervious (ac): 0 23 acre <br />Detention Storage Required (cf/ac) <br />Lawns/Landscaping (cf/ac): N.A. <br />Earth/Gravel (cf/ac): ��O cf/� <br />Impervious (cf/ac): : 38 cF/a� <br />Total Cetention Storage Required <br />Lawns/Landscaping (cf): O <br />Earth/Gravel (cf): / c F <br />Impervious (cf): c <br />Total Storage Required c. SG C.f' <br />S� _� � ?So G� <br />.. ND D.E7'E.✓�i0i✓ /S'r4U�•CG`O <br />_J/ . <br />!_/'(,�/r�i, /�J�?"�"+'? <br />��r'8-59 <br />� <br />