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Alluvial Wells AW -1 through AW -6 are located north of Old State Highway 133, near the entrance to the mine. <br />• <br />Baseline Information for Point AW-6 is derived from events beginning on 11/23/96 through 3/27/97. <br />Point influenced by mining on 3127/97. <br />Figure No. 162 <br />Bowie Resources, LLC <br />Ground Water <br />Bowie No. 2 Mine <br />2009 Annual Hydrology Report <br />AW -6 <br />40 <br />Alluvial Well <br />Top of Pipe Elevation - 5981.18' <br />Depth -112' <br />Pipe 1.38' Above Ground <br />Initiated <br />11/23/1996 <br />11/23/1996 <br />11/23/1996 <br />11/23/1996 <br />Activated <br />3/27/1997 <br />3/27/1997 <br />3/27/1997 <br />3/27/1997 <br />Date <br />11/18/2009 <br />9/29/2009 <br />6/15/2009 <br />3/9/2009 <br />Summary Information <br />Field <br />Baseline <br />Operation <br />Parameters <br />UNITS <br />Min Ave <br />Max <br />Min Ave Max <br />Static Water Level <br />52.62 <br />54.37 <br />56.82 <br />0.00 53.70 <br />58.61 <br />50.97 <br />51.28 <br />51.21 <br />52.78 <br />Water Elevation <br />5924.4 5926.8 5928.6 <br />5922.6 5927.5 <br />5981.2 <br />5930.21 <br />5929.9 <br />5929.97 <br />5928.4 <br />FieldComment <br />lFeet <br />ph <br />7.3 <br />7.4 <br />7.4 <br />7.0 7.3 <br />7.7 <br />7.3 <br />7.1 <br />7.3 <br />7.4 <br />Conductivity <br />4600 <br />4650 <br />4700 <br />3300 4579 <br />5600 <br />3900 <br />3900 <br />3300 <br />4100 <br />Temperature <br />12.4 <br />13.5 <br />14.6 <br />11.7 14.2 <br />17.8 <br />13.2 <br />15.2 <br />14.9 <br />13.6 <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />278 <br />317 <br />355 <br />217 378 <br />445 <br />217.4 <br />401.91 <br />Carbonate <br /><MDL <br /><MDL <br /><MDL <br /><MDL <MDL <br /><MDL <br /><MDL <br /><MDL <br />Chloride <br />jumhos/cm <br />107 <br />114 <br />120 <br />55 119 <br />578 <br />65.41 <br />54.5 <br />Conductivity <br />2580 <br />3305 <br />4030 <br />3443 4591 <br />7450 <br />4040.04 <br />3442.56 <br />Hardness <br />1880 <br />1925 <br />1970 <br /><MDL 1728 <br />4787 <br />1503.3 <br />1300.25 <br />Nitrate - Nitrite <br />7.3 <br />8.11 <br />8.8 <br />1.2 6.31 <br />9.0 <br />5.32 <br />3.46 <br />Ammonia <br />mg /L <br />0.07 <br />0.07 <br />0.07 <br /><MDL 0.4 <br />1.6 <br />0.46 <br />0.3 <br />pH <br />su <br />7.5 <br />7.6 <br />7.7 <br />7.2 7.7 <br />8.3 <br />8.0 <br />7.5 <br />• Phosphate <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br /><MDL 0.02 <br />0.06 <br />0.04 <br />0.03 <br />ResidueFilterable -TDS <br />mg /L <br />3910 <br />3995 <br />4080 <br />3390 4312 <br />5477 <br />3832 <br />3418 <br />Sulfate <br />mg /L <br />2300 <br />2300 <br />2300 <br />1740 2352 <br />3060 <br />2018.9 <br />1796.63 <br />Arsenic <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br /><MDL 0.0601 <br />0.326 <br />0.243 <br />0.015 <br />Cadmium <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br /><MDL 0.00524 0.02900 <br />0.02 <br />0.013 <br />Calcium <br />mg /L <br />248 <br />254 <br />260 <br />190 240 <br />310 <br />189.75 <br />194.6 <br />Iron Dissolved <br />m /L <br /><MDL <br />0.14 <br />0.27 <br /><MDL 0.07 <br />0.26 <br />0.15 <br />0.06 <br />Iron (Total) <br />mg /L <br />0.26 <br />0.31 <br />0.37 <br />0.07 0.65 <br />4.74 <br />0.17 <br />0.1 <br />Magnesium (Dissolved) <br />mg/L <br />307 <br />315 <br />322 <br />198 331 <br />1016 <br />250 <br />197.75 <br />Manganese (Dissolved) <br />mg /L <br />0.07 <br />0.18 <br />0.29 <br /><MDL 0.07 <br />0.22 <br />0.15 <br />0.005 <br />Manganese (Total) <br />0.11 <br />0.20 <br />0.29 <br /><MDL 0.11 <br />0.35 <br />0.16 <br />0.006 <br />Mercury <br /><MDL <br /><MDL <br /><MDL <br /><MDL 0.00010 0.00070 <br />0.00006 <br />0.00002 <br />Selenium <br />Ima/L <br />0.05 <br />0.06 <br />0.06 <br />0.007 0.084 <br />0.380 <br />0.243 <br />0.007 <br />Sodium <br />501 <br />514 <br />526 <br />376 503 <br />609 <br />458.25 <br />376.25 <br />Zinc <br /><MDL <br />0.05 <br />0.11 <br /><MDL 0.02 <br />0.07 <br />0.01 <br />0.02 <br />Alluvial Wells AW -1 through AW -6 are located north of Old State Highway 133, near the entrance to the mine. <br />• <br />Baseline Information for Point AW-6 is derived from events beginning on 11/23/96 through 3/27/97. <br />Point influenced by mining on 3127/97. <br />Figure No. 162 <br />