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i <br /> � <br /> . . • • <br /> CITY OF EVERETT PUBLIC WORKS <br /> DRAINAGE CALCULATION SUBMISSION FORM <br /> Date �0� 23�89 � <br /> Pro,�ect Nane: G,�,S�NO R� _ A�TS Fo�2, G�P.G , LTD. <br /> Pro,jec!: Location: <br /> Submittec' 8y: <br /> Drainage Basin: t�LA26�G1= CPJ�'k-. 8/hS�� <br /> Pre-Cevelopment Design Storm (yr): 5 `(R• <br /> Post-Development Design Storm (yr): 25 '�• <br /> Area of Site (ac): I.� _ <br /> Existing Slope oP Site (%): 2�/� <br /> Existing Ground Cover <br /> Woods/Forest (ac): ' <br /> Lawns/Landscaping (ac : 1.05 <br /> Earth/Gravel (ac): — <br /> Impervious (ac): — �r <br /> Existing Run-Off (cfs): O•2 2 <br /> per acre <br /> Propased Ground Cover <br /> Lawns/Landscaping (ac): O.� <br /> Earth/Gravel (ac): -- <br /> Impervious (ac): ,72 <br /> Detention Storage Required (cf/ac) <br /> Lawns/Landscaping (cf/ac): 53 I , <br /> Carth/Gravel (cf/ac): �8 <br /> Impervious (cf/ac): _ <br /> Total Detention Storage Required <br /> Lawns/Landscaping (cf): �1 5• <br /> Earth/Gravel (cf): + — <br /> Impervious (cf): 20"77___ <br /> Tota1 Storage Requ red c : 22'�2 FT3• <br /> _ -- � <br />