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LOT 1, BLOCK 2 MOONEY LAKE PRESERVE <br /> RUNOFF CALCULATIONS <br /> January 10, 2018 <br /> EXISTING CONDITIONS <br /> WEST AREA EAST AREA <br /> Drainage Area =0.69 Ac. Drainage Area =0.39 Ac. <br /> Runoff CN =80 Runoff CN =81 <br /> Time of Conc. = 12 minutes Time of Conc. =7 minutes <br /> 01 = 0.86 CFS Q1 = 0.58 CFS <br /> Q10 = 2.24 CFS Q10 = 1.50 CFS <br /> Q100= 4.87 CFS Q100 = 3.24 CFS <br /> PROPOSED CONDITIONS <br /> WEST AREA EAST AREA <br /> Drainage Area =0.69 Ac. Drainage Area =0.39 Ac. <br /> Runoff CN =83 Runoff CN =79 <br /> Time of Conc.=9 minutes Time of Conc.=5 minutes <br /> AFTER PONDING, NWL= 1007.25 AFTER PONDING NWL=1019.5 <br /> 01 = 1.15 CFS > 0.38 CFS Elev= 1007.68 01 =0.58 CFS>0.12 CFS EIev=1019.70 <br /> Q10 = 2.74 CFS > 1.23 CFS EIev=1008.15 010= 1.54 CFS>0.48 CFS EIev=1020.00 <br /> Q100= 5.66 CFS > 3.16 CFS EIev= 1008.81 Q100=3.38 CFS>1.34 CFS EIev=1020.44 <br /> REeefillea <br /> JAN 12 2018 <br /> CITY OF ORONO <br /> GRONBERG& <br /> 445 N.WILLOW DR. <br /> LONG LAKE.MN 55356 <br />