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NAl8 <br />Q. 0 <br />�ZH <br />H 1 <br />HH <br />N <br />C�Uto <br />JR5 <br />Horn <br />Cn� <br />CITY OF EVERETT PUBLIC WORKS <br />DRAINAGE CALCULATION SUBMISSION FORM <br />Date I_ S 9 <br />Project Name: <br />f lie v �Y_Y 1 nci kn.,J <br />Project Location: <br />Submitted By: <br />Drainage Basin: <br />Pre -Development Design Storm (yr):_-- <br />Post-Development Design Storm (yr): <br />Area of Site (ac): /, <br />Existing Slope of Site W : GJ�•�6 / 7% - <br />Existing Ground Cover <br />Woods/Forest (ac): /• <br />Lawns/Landscaping (ac <br />Earth/Gravel (ac): 2 -- <br />Impervious (ac): <br />Existing Run -Off (cfs): ' /j PY <br />ptn rtG. <br />Proposed Ground Cover <br />Lawns/Landscaping (ac): - <br />Earth/Gravel (ac): <br />Impervious (ac): <br />Detention Storage Required (cf/ac) <br />Lawns/Landscaping (cf/ac): <br />Earth/Gravel (c( ,/ac): <br />Impervious (cf/ac): 'y ,�t� ' <br />Total Detention Storage Required `�� o _ ,y 4 ��3 <br />Lawns/Landsca in (cf): 0 1 /'•� / <br />Earth/Gravel (cf ' _ 4 /a•jire3 <br />Impervious (cf): 0.74 �_ 3 <br />Total Storage Requ re c [ •9 5 y I c <br />i�t.,�G(i t2,(.;,:c_�O�llOFs1��ai1�)=D•£�C/.S. <br />I <br />