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Bowie Resources, LLC Ground Water <br />Bowie No. 1 Mine <br />• 2006 Annual Hydrology Report SM10 <br />Monitoring Well SM-10 <br />Depth -48.7' <br />Elevation - 7250.47 <br />Initiated 8/8/1986 8/8/1986 <br />Activated <br />Date 11/27/2006 6/19/2006 <br />Summary Information <br />Field- ~ <br />Pararpeietis =~ Baseline OperaBon <br />UNITS Mln Ave Max Min Ave Max <br />Static Water Level Feet 36.2 43.3 50.0 45.72 45.98 <br />Water Elevation Feet 7200.5 7208.2 7250.5 7204.75 7204.49 <br />Tern erature Celsius 6 10.7 22.4 7.6 12.7 <br />Conductivity umhos/cm 1815 2722 4370 2100 2200 <br />pH su 6.4 7.1 8.7 7.3 7.1 <br />Field Comments <br />Lab - _ <br />Parameters- ~ - ~ <br />UNITS <br />Bicarbonate mg/L 710.68 909 1179 719 710.66 <br />Carbonate mg/L <MDL <MDL <MDL <MDL <MDL <br />Chloritle mg/L 22.69 87 129 22.89 56.28 <br />Conductivity umhos/cm 1553.9 2925 3740 1553.9 2150.86 <br />Hardness m /L 298 1254 2013 579.75 790.08 <br />H su 6.9 7.3 8.4 8.39 6 <br />ResidueFilterable-TDS mg/L 1348 2417 3578 1348 1712 <br />ResidueNOnFilterable-TSS mg/L 30 1027 4590 1128 1200 <br />SAR 0.45 3.87 4.97 3.77 3.51 <br />Sulfate m /L 361.38 1028 1879 361.38 407.07 <br />Calcium Dissolved) m /L 83 190 341 92 109.6 <br />Magnesium (Dissolved) mg/L 22 191 287 85 125.4 <br />Sodium (Dissolvetl) mg/L 18 311 455 208.8 226.75 <br />TDS Ratio (grav./talc.) 0.905 1.02 1.12 0.91 1.05 <br />The area o/concern for monitoring point SM10 has not been affected by the mining operation. There/ore, all recorded <br />monitoring events are considered Baseline. <br />Shallow monitohng wells SM-1 through SM-11 were constmcted in 1985 in order to gatheraddiGOnal inlormation <br />on alluvial/colluvia/ deposits within the permit boundary They are depictetl on Map 4-1. <br />Baseline Information Collection initiated on 8/6x86 and not yet consitleretl complete. <br />Point SM10 has not Deen inFlUencetl by mining. <br />Figure No. 26 <br />