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Bowie Resources, LLC <br />Bowie No. 1 Mine <br />2007 Annual Hydrology Report <br />SMO9 <br />Monitoring Well SM-9 <br />Depth - 40' <br />Top of Pipe Elevation - 7520' <br />Pipe 2.5' Above Ground <br />Initiated 8!2611985 8/26/1985 <br />Activated 2/1!1993 2/1/1993 <br />Date 12!10/2007 6/19/2007 <br />• <br />• <br />Summary Information <br />Field <br />Parameters Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Static Water Level Feet 19.7 24.9 27.0 17.0 24.2 26.4 26.42 25.65 <br />Water Elevation Feet 7493.0 7495.8 7520.0 7493.6 7495.8 7503.0 7493.58 7494.35 <br />Tem erature Celsius 6.7 9.3 18.1 6.0 8.3 10.4 7.8 9.3 <br />Conductivity umhos/cm 310 680 1190 580 797 960 780 780 <br />pH su 6.7 7.8 8.8 6.9 7.3 7.8 7.5 7.5 <br />Field Comments <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate mg/L 49 319 510 253 392 489 252.84 305.8 <br />Carbonate mg/L <MDL <MDL <MDL <MDL 1 22 21.67 <MDL <br />Chloride mg/L 2 9 16 <MDL 14 34 10.9 4.53 <br />Conductivity umhos/cm 438 610 1230 677 894 1002 807.85 677 <br />Hardness mg/L 111 214 501 276 359 410 315.9 333.29 <br />H su 7.0 7.7 8.2 7.1 7.6 8.7 8.67 7.19 <br />ResidueFilterable-TDS mg/L 252 384 648 528 577 670 528 555 <br />ResidueNonFilterable-TSS mg/L 52 571 1475 <MDL 69 114 89 54 <br />SAR 1.33 2.76 12.33 1.33 1.63 2.06 2.05 1.9 <br />Sulfate m /L 6 65 193 13 119 579 74.91 13.17 <br />Calcium Dissolved) mg/L 28.0 52.4 120.0 61.9 88.2 104.0 79.2 61.9 <br />Magnesium (Dissolved) mg/L 7.0 20.2 49.0 26.0 33.5 43.4 28.7 43.4 <br />Sodium (Dissolved) mg/L 53.0 87.5 410.0 53.9 70.0 87.3 83.7 81 <br />TDS Ratio (grav./talc.) 0.85 1.03 1.14 1 1.09 <br />Shallow monitoring wells SM-1 through SM-11 were constructed in 1985 in order to gather additional information <br />on alluviaUcolluvial deposits within the permit boundary. They are depicted on Map 4-1. <br />Baseline Information for Point SM09 is derived from events beginning on 8/26/85 through 2/1/93. <br />Point influenced by mining on 2/1/93. <br />Ground Water <br />Figure No. 14 <br />