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• <br />Bowie Resources, LLC <br />Bowie No.1 Mine <br />2007 Annual Hydrology Report <br />B07 <br />Borehole 7 <br />Depth - 95.3' <br />Elevation - 6602' <br />Initiated 911/1981 9/1/1981 <br />Activated 9/1/1981 9/1/1981 <br />Date 11/16/2007 6/19/2007 <br />Summary Information <br />• <br />• <br />Field <br />Parameters Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Static Water Level Feet 69.40 85.95 94.84 94.13 94.07 <br />Water Elevation Feet 6507 6516 6533 6507.87 6507.93 <br />Tem erature Celsius 7.0 13.6 19.6 12.9 18.7 <br />Conductivity umhos/cm 152 1331 2190 1510 1480 <br />pH su 5.8 7.5 8.9 7.7 7.5 <br />Field Comments <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate mg/L 226 433 601 <br />Carbonate mg/L 0 0 7 <br />Chloride mg/L 22 83 420 <br />Conductivity umhos/cm 600 1387 2190 <br />Hardness mg/L 237 655 1160 <br />H su 6.90 7.62 8.40 <br />ResidueFilterable-TDS mg/L 244 973 1900 <br />ResidueNonFilterable-TSS mg/L 0 213 824 <br />SAR 0.62 1.27 1.63 <br />Sulfate m /L 2 308 731 <br />Calcium (Dissolved) mg/L 1.9 142.1 269.0 <br />Magnesium (Dissolved) mg/L 23 69 118 <br />Sodium (Dissolved) mg/L 22 83 408 <br />Potassium mg/L 0 1 6 <br />TDS Ratio (grav./calc.) 0.99 1.06 1.15 <br />The area of concern for monitoring point 807 was affected by the mining operation before its establishment. Therefore, <br />al! recorded monitoring events are considered Operational. <br />""Not Enough Water for Lab Parameters <br />Borehole &7, also referred to as Node 22, is located below sedimentation pond #4 and is periodically monitored for <br />water quality to ascertain potential groundwater contamination attributable to the East Mine facilities area. <br />There is no baseline collection possible for points initiated after the influence of mining. <br />Ground Water <br />Figure No. 5 <br />