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Phase of Development = Post Development- Access Road <br />CLIENT Reliance Mine, LLC Project Number: <br />BASIN 1 <br />SCS Hydrologic Soil Group <br />Composite Coefficients of Runoff <br />5821897 <br />DATE: 12/26/2013 <br />DESIGN POINT <br />C (From Soil Survey web site) <br />Covert a <br />Area (sf) <br />C2 <br />value <br />CS <br />value <br />C10 <br />value <br />C25 <br />value <br />C50 <br />value <br />0100 <br />value <br />Imperviousness <br />Area <br />Pavement <br />0.87 <br />0.88 <br />0.90 <br />0.91 <br />0.92 <br />0.93 <br />100 % <br />0.00 <br />Roof <br />0.80 <br />0.85 <br />0.90 <br />0.90 <br />0.90 <br />0.90 <br />90 % <br />0.00 <br />Mine Site,15% Impreviuos <br />0.14 <br />0.24 <br />0.32 <br />0.43 <br />0.49 <br />0.54 <br />15 % <br />0.00 <br />Undeveloped Area, 5% Imprevious <br />286,673 <br />0.062 <br />0.170 <br />0.268 <br />0.386 <br />0.464 <br />0.514 <br />2 % <br />100.00 <br />Total area= 286,673 sf <br />6.58 ac <br />Composite Coefficients <br />C2= 0.06 <br />Cs= 0.17 <br />C1o= 0.27 <br />Cgs= 0.39 <br />Cso= 0.46 <br />C1oo= 0.51 <br />