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Bowie Resources Limited <br />Bowie No. 1 Mine <br />2003 Annual Hydrology Report <br />SM09 <br />Monitoring Weli SM-9 <br />Depth - 40' <br />Top of Pipe Elevation • 7520' <br />Pipe 2.5' Above Ground <br /> Initiated 8126/1985 8!26/1985 <br /> AcBvated 2/1/1993 2/111993 <br /> Date 12I18Y2003 6/29/2003 <br />Summary Information <br />• <br />C~ <br />F efd <br />Parameter: Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Static Water Level Feet 19.7 24.9 27.0 17.0 23.9 26.3 26.27 25.88 <br />Water Elevation Feet 7493.0 7495.8 7520.0 7493.7 7496.1 7503.0 7493.73 7494.12 <br />Temperature Celsius 6.7 9.3 18.1 6.0 8.3 10.3 7.9 9.7 <br />Conductivity umhos/cm 310 680 1190 580 791 960 840 880 <br />pH su 6.7 7.8 8.8 6.9 7.3 7.8 7.2 7.2 <br />Field Comments <br />„arame a UNITS <br />Bicarbonate mg/L 49 319 510 385 410 489 386 385 <br />Carbonate mglL <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL <br />Chloride m IL 2 9 16 9 14 17 13 16 <br />Conductivi umhos/cm 438 610 1230 823 916 1002 839 921 <br />Hardness m 111 214 501 276 369 410 366 276 <br />pH su 7.0 7.7 8.2 7.2 7.5 7.8 7.5 7.4 <br />ResidueFilterable-TDS mg/L 252 384 648 530 581 fi10 540 560 <br />ResitlueNonFilterable-TS mglL 52 571 1475 12 70 114 60 94 <br />SAR 1.33 2.76 12.33 1.33 1.57 1.74 1.59 1.43 <br />Sulfate m /L 6 65 193 70 138 579 100 100 <br />Calcium (Dissolved) m /L 28.0 52.4 120.0 67.7 90.7 104.0 91.2 67.7 <br />Magnesium (Dissolved) m /L 7.0 20.2 49.0 26.0 34.1 37.1 33.5 26 <br />Sodium (Dissolved) mg/L 53.0 87.5 410.0 53.9 68.2 77.5 68.9 53.9 <br />Potassium mg/L <MDL 0.4 2.0 1.8 <br />TDS Ratio (gray./talc.) 0.96 1.03 1.11 1 <br />Shallow monitoring wells SM-1 through SM-11 were constructed in 1985 in order to gather additional information <br />on alluvial/colluvial deposits within the permit boundary. They are depictetl on Map 4-1. <br />Baseline {nformation Tor Point SM09 is derived tmm eveMS beginning on 8126185 through 211193. <br />Point influenced by mining on 27/93. <br />Ground Water <br />Figure No. 27 <br />