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Bowie Resources, LLC Ground Water <br />Bowie No. 1 Mine <br />2007 Annual Hydrology Report SM11 <br />Monitoring Well SM-11 <br />Depth - 46.5' <br />Elevation - 7242.65 <br />Initiated 8/8/1986 8/8/1986 <br />Activated <br />Date 12!1312007 6/19/2007 <br />Summary Information <br />Field Baseline Operation <br />i i~uTe AAin e.~o ~Aw Ain Gvc Mar <br />Static Water Level Feet 30.4 36.3 87.8 36.88 36.96 <br />Water Elevation Feet 7154.9 7206.4 7212.3 7205.77 7205.69 <br />Tem erature Celsius 5 10.4 20.0 8 10.8 <br />Conductivity umhos/cm 1400 1930 2610 2400 2300 <br />pH su 5.8 7.6 8.5 8.1 7.8 <br />Field Comments <br /> Lab <br /> Parameters UNITS <br /> Bicarbonate mg/L 207 1222 1570 1019.18 1285.87 <br /> Carbonate mg/L <MDL 4 86 85.52 <MDL <br /> Chloride mg/L 22 47 85 54.5 56.72 <br /> Conductivity umhos/cm 1680 2179 2460 2328.24 2177 <br /> Hardness m /L 152.8 288 507 288.32 294.22 <br /> pH su 7.4 7.9 8.8 8.83 7.78 <br /> ResidueFilterable-TDS mg/L 1030 1462 1836 1693 1508 <br /> ResidueNonFilterable-TSS mg/L 6 89 518 56 421 <br /> SAR 1.446 12.1 16.4 12.98 1.446 <br />• Sulfate mg/L <MDL 97 543 .29.22 30.46 <br /> Calcium (Dissolved) mg/L 5.5 46.0 83.8 49.5 39 <br /> Magnesium (Dissolved} mg/L 6.0 41.1 73.0 40 47.8 <br /> Sodium (Dissolved) mg/L 57 451 622 506.75 57 <br /> TDS Ratio (grav./talc.) 0.907 1.00 1.11 1 0.99 <br /> <br /> The area of concern for monitoring point SM11 ha s not been affected by the mining operation. . Therefore, al! recorded <br /> monitoring events are considered Baseline. <br />Shallow monitoring wells SM-1 through SM-11 were constructed in 1985 in order to gather additional information <br />on alluvial/colluvia/deyosits within the permit boundary. They are depicted on Map 4-1. <br />• <br />Baseline Information Collection initiated on 8/8/86 and not yet considered complete. <br />Point SM11 has not been influenced by mining. <br />Figure No. 16 <br />