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Bowie Resources, LLC <br />Bowie No. 1 Mine <br />• 2008 Annual Hydrology Report <br />SM07 <br />Monitoring Well SM-7 <br />Depth - 55' <br />Top of Pipe Elevation - 7800' <br />Pipe 2.5' Above Ground <br />Initiated 8/22/1985 8/22/1985 <br />Activated 10/1/1997 10/1/1997 <br />Date 11/30/2008 6/24/2008 <br />Summary Information <br />Baseline Operation <br />nA;- A..o KA- <br />lr, <br />u <br />• <br />Static Water Level Feet 18.2 26.2 32.3 0.0 27.3 45.0 27.78 22.33 <br />Water Elevation Feet 7767.7 7773.8 7781.8 7755.0 7772.7 7800.0 7772.22 7777.67 <br />Temperature Celsius 6.0 9.2 15.8 6.4 8.1 10.3 6.8 7.9 <br />Conductivity umhos/cm 180 267 510 180 255 580 210 210 <br />pH su 6.8 7.6 8.5 6.8 7.4 7.8 7.5 7.6 <br />Field comments <br /> UNITS <br />Bicarbonate mg/L 102 165 680 64 125 198 116.31 116.31 <br />Carbonate mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL <br />Chloride mg/L 2 5 13 <MDL 3.3 11 1.76 2.45 <br />Conductivity umhos/cm 229 280 362 218 274 401 265.5 263 <br />Hardness mg/L 103 139 193 83 124 192 150.77 113.44 <br />H su 6.5 7.2 8.0 6.5 7.3 8.3 7.51 7.95 <br />ResidueFilterable-TDS mg/L 117 164 220 110 171 243 184 163 <br />ResidueNonFilterable-TSS mg/L 8 257 846 <MDL 46 154 28 <MDL <br />SAR 0.19 0.24 0.29 0.26 0.32 0.46 0.291 0.354 <br />Sulfate m /L <MDL 19 78 <MDL 13.7 30.0 6.59 2.88 <br />Calcium (Dissolved) m /L 1.9 40.4 59.0 20.8 37.3 59.2 45.8 33.82 <br />Magnesium (Dissolved) mg/L 6.0 7.9 11.0 5.5 7.4 11.1 8.84 7.04 <br />Sodium (Dissolved) mg/L 6.0 6.8 1 - 83, 6.2 8.1 10.5 8.34 8.69 <br />TDS Ratio (grav./talc.) 0.95 1.07 1.19 0.85 1.09 1.58 0.98 0.95 <br />Shallow monitoring wells SM-1 through SM-11 were constructed in 1985 in order to gather additional information <br />on alluviaYcolluvia/ deposits within the permit boundary. They are depicted on Map 4-1. <br />Baseline Information for Point SM07 is derived from events beginning on 8/22/85 through 10/1/97. <br />Point influenced by mining on 10/1/97. <br />Ground Water <br />Figure No. 13