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• <br />Bowie Resources, LLC <br />Bowie No. 1 Mine <br />2008 Annual Hydrology Report <br />• <br />SWO6 <br />East Roatcap Creek - Downstream <br />Elevation - 6740 <br />• <br />Surface Water <br />Initiated 1/1/1963 1/1/1983 1/1/1983 1/111983 1/1/1983 1/1/1983 1/1/1983 1/1/1983 1/1/1983 111/1983 <br />Activated 1221/1986 12/21/1986 12/21/1986 12121/1986 12/21/1986 12/21/1986 12121/1986 12/21/1986 12121/1986 12/21/1986 <br />Date 12/18/2008 111182008 10/17/2008 9/16/2008 8/152008 7/17/2008 6/202008 528/2008 5/212008 420/2008 <br />Summary Information <br /> Baseline Operation <br />a 4 b` UNITS Min Ave Max Min Ave Max <br />_ <br />Flow 16.38 0.000 0.003 0.000 0.000 0.078 0.146 0.326 1.284 3.317 15.140 <br />CFS 0.000 <br />Water Level in Flume Feet 1.22 0.001 0.005 0.001 0.001 0.04 0.06 0.1 0.24 0.44 1.16 <br />Temperature Celsius 0.5 25.50 0.3 6.5 9.6 8.4 14.1 13.9 12.8 12.1 11.2 5.3 <br />Conductivity umhos/cm 60 277 W 30 1 1650 980 1070 1260 1540 1110 140 600 230 160 100 <br />pH su 6.5 3 9.0 7.8 7.6 7.8 7.5 7.6 8.5 8.5 8.3 7.3 8.3 <br />Field Comments 7.5 gpm <0.01' in flm .47 gpm <br />C <br />N <br />it <br />JMTS <br />Bicarbonate mg/L 60 155 289 61.00 251.59 440.00 404.4 355.08 257.56 91.49 <br />Carbonate mg/L <MDL 1 7.1 <MDL 5.49 52.00 <MDL <MDL 7.8 <MDL <br />Chloride mg/L 1 5 10 <MDL 15.19 68.00 32.7 21.8 1.43 2.57 <br />Conductivity umhos/cm 110 275 670 124.0 648.8 1430.0 1029.5 1050.45 565.7 242.37 <br />Hardness mg/L 58 158 291 54.00 288.81 697.00 428.13 450.26 288.56 144.18 <br />pH su 6.8 7.9 8.4 6.50 8.13 8.60 8.06 8.17 8.38 8.253 <br />ResidueFilterable-TDS g/L 4 180 380 50 445 11 1130 828 849 460 185 <br />ResidueNonFilterable-TSS 104 524 <MDL 17 138 8 3 16 28 <br />SAR 0.46 0.72 0.28 1.06 5.93 1.577 1.407 1.051 0.518 <br />Sulfate j 32 80 8.00 109.60 410.00 225.97 269.19 80.67 8.64 <br />Calcium (Dissolved) 37 69 10.5 60.5 125.0 95.1 97.2 62.69 36.3 <br />Magnesium (Dissolved) 14 29 4.7 33.5 93.6 46.3 50 32.06 13 <br />Sodium (Dissolved) 14 28 5.00 44.81 196.00 75 69.6 41.2 14.35 <br />TDS Ratio (grav./talc.) <MDL 0.97 1.50 0.94 0.98 1 1 0.97 1.11 <br />S Wo6 is located on East Roatcap Creek in the NE114SW114 Sec 23, T13S, R92W of the 6th P. M. A 36" Parshall flume was also installed at this location. <br />"rl <br />(!D <br />C <br />(D <br />Z <br />O <br />N <br />W <br />Baseline Information for Point SWO6 is derived from events beginning on 1/1/83 through 1221/86. <br />Point influenced by mining on 1221186.