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Bowie Resources, LLC Baseline - Surface Water <br />• Bowie No. 2 Mine <br />NFG -up <br />North Fork - Drainage System <br />Elevation - 5880 <br />Date § 11/23/2009 9/2212009 &WM91 6/8/2009 3117/2009 <br />Summary Information - Period of Record (9/30/1996 - 11/23/2009) <br />Baseline <br />UNITS Min Ave Max <br />Flow <br />CFS 53 463 2720 75 85 243 1120 204 <br />FleldComment <br />ph <br />su 7.5 8.3 8.8 8.3 8.4 8.6 8.1 7.8 <br />Conductivity <br />umhos/cm 50 163 270 230 250 190 80 170 <br />Temperature <br />Celsius 0.2 10.6 22.2 2.0 8.3 10.4 11.8 5.4 <br />DO <br />mg/L 72 9.1 11.7 11.4 8.91 9.1 8 9.1 <br />UNITS <br />Bicarbonate <br />mg/L 35 81 135 122.26 42.92 <br />Chloride <br />mg/L <MDL 3.0 10.9 10.9 2.44 <MDL <br />Chromium III Crlll <br />m /L <MDL <MDL <MDL <MDL <br />Chromium VI CrIV <br />mg/L <MDL 0.008 0.008 <MDL <br />Cyanide, Total <br />mg/L <br /><MDL <br />0.067 <br />0.081 <br /><MDL <br />Conductivity <br />umhos/cm <br />7 <br />178 <br />364 <br />297.97 <br />129.6 <br />Hardness <br />mg/L <br />32 <br />72 <br />132 <br />103.51 <br />95.05 <br />50.46 <br />Nitrate <br />mg/L <br /><MDL <br />0.40 <br />3.47 <br />2.18 <br />Nitrite <br />mg/L <br /><MDL <br />0.003 <br />0.017 <br /><MDL <br />Ammonia <br />mg/L <br /><MDL <br />0.02 <br />0.23 <br />0.23 <br />Oil & Grease <br />mg/L <br /><MDL <br />7 <br />11 <br /><MDL <br /><MDL <br />pH <br />su <br />72 <br />7.8 <br />9.0 <br />7.58 <br />7.52 <br />7.41 <br />Phosphate <br />mg/L <br /><MDL <br />0.01 <br />0.05 <br /><MDL <br /><MDL <br />ResidueF tterable -TDS <br />mg/L <br />9 <br />126 <br />232 <br />171 <br />201 <br />53 <br />ResidueNonFllterable -TS <br />mg/L <br /><MDL <br />21 <br />131 <br /><MDL <br />20 <br />SAR <br /><MDL <br />0.64 <br />2.17 <br />1.21 <br />0.94 <br />Sulfate <br />mg/L <br /><MDL <br />16 <br />30 <br />11.94 <br />8.23 <br />12.76 <br />Sulfide S <br />mg/L <br /><MDL <br />0.05 <br />0.05 <br /><MDL <br />Aluminum <br />mg/L <br /><MDL <br />0.47 <br />2.78 <br />0.082 <br /><MDL <br />Arsenic <br />mg/L <br /><MDL <br />0.0017 <br />0.0120 <br />0.01 <br />0.00016 <br /><MDL <br />Boron <br />mg/L <br />0.02 <br />0.39 <br />120 <br />1.2 <br />Cadmium <br />mg/L <br /><MDL <br />0.004 <br />0.020 <br />0.001 <br /><MDL <br />0.012 <br />Calcium <br />mg/L <br />9.7 <br />20.9 <br />34.2 <br />30.9 <br />28.4 <br />16.48 <br />Copper <br />mg/L <br /><MDL <br />0.012 <br />0.197 <br />0.008 <br />0.004 <br />0.01 <br />Iron, Dissolved <br />mg /L <br />0.01 <br />0.04 <br />0.09 <br />0.01 <br />Iron (total) <br />mg /L <br />0.03 <br />0.32 <br />2.90 <br />0.05 <br />0.12 <br />0.16 <br />Lead <br />mg /L <br /><MDL <br />0.0108 <br />0.1200 <br />0.03 <br /><MDL <br />0.02 <br />Magnesium <br />mg /L <br />1.88 <br />4.66 <br />12.78 <br />6.4 <br />5.86 <br />2.26 <br />Manganese Dissolved <br />mg/L <br /><MDL <br />0.31 <br />2.90 <br /><MDL <br />Manganese (Total) <br />mg/L <br /><MDL <br />0.025 <br />0.115 <br /><MDL <br />0.017 <br />0.03 <br />Mercury <br />mg/1- <br /><MDL <br />0.00005 <br />0.00022 <br />0.00004 <br />0.00009 <br />0.00008 <br />Molyebdenum <br />mg/L <br /><MDL <br />0.004 <br />0.030 <br />0.001 <br /><MDL <br />Mickel - - - - <br />mg /L <br /><MDL <br />0.01 <br />0.01 <br />- <br />- - 0.01 <br />Selenium <br />mg /L - <br />-<MDL <br />0.001 <br />-- 0.011 <br />- - -- -0.002 <br />- - - -- <br />0.00083 <br /><MDL <br />Silver <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />Sodium IM91L <br />3.3 <br />14.4 <br />41.2 <br />28.9 <br />15.6 <br />Zinc <br />mg ' /L <br /><MDL <br />0.012 <br />0.040 <br />0.01 <br />0.01 <br /><MDL <br />