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I• <br />Bowie Resources, LLC <br />Bowie No. 2 Mine <br />2005 Annual Hydrology Report <br />DH-15 <br />Stevens Draw -Drill Hole <br />Pipe Elevation - 7143.3 <br />Pipe 1.8' above ground <br />Depth - 218' <br />Ground Water <br />Inifiatetl 8/12/1995 6/12/1995 6/12/1995 8/12/1995 <br />Activated <br />Date 12/15/2005 926/2005 8/28/2005 4/19/2005 <br />Summary Information <br />• <br />1I 1 <br />J <br />~ °_'.y~ ,1 ~"i' <br />.§,.{<_- Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Static Water Level Feet 191.13 192.94 197.61 197.81 197.58 197.3 196.43 <br />Water Elevation Feet 6945.7 6950.4 6952.2 6945.69 6945.72 6946 6948.87 <br />FieldCOmment <br />ph su 7.5 8.0 8.4 8.3 8.2 8.1 8.2 <br />Conductivity umhos/cm 1820 1980 2300 2000 1910 2100 2200 <br />Temperature Celsius 11.4 14.2 17.8 12.9 14.2 15.6 13.7 <br />t ~e;~ <br />4r <br />~ 4 Y <br />~1 ~ <br />UNITS <br />Bicarbonate mg/L 441 1062 1200 1080 1100 <br />Carbonate mg/L <MDL 3 31 7 31 <br />Chlodtle mg/L 22 25 33 26 27 <br />Conductivity umhos/cm 1670 1882 2040 1950 2010 <br />Hardness mg/L <MDL 8 19 6 9 <br />Nitrate-Nitrite m IL <MDL 0.03 0.08 <MDL <MDL <br />Ammonia mg/L <MDL 0.44 0.64 0.49 0.48 <br />pH su 7.7 8.1 8.4 8.3 8.4 <br />Phosphate mglL <MDL 0.32 0.58 0.34 0.27 <br />ResidueFilterable-TDS m /L 1140 1201 1380 1220 1240 <br />Sulfate m /L <MDL 4 30 <MDL <MDL <br />Arsenic mg/L <MDL 0.0001 0.001 <MOL <MDL <br />Cadmium mg/L <MDL <MDL <MDL <MDL <MDL <br />Calcium mglL 1.2 1.7 3.6 1.4 2.3 <br />Iron (Dissolved m /L 0.01 0.11 0.59 0.05 0.45 <br />Iron (Total m /L 0.14 0.43 1.82 0.18 0.99 <br />Magnesium (Dissolved) mg/L 0.4 0.7 2.3 0.5 0.8 <br />Manganese (Dissolved) mg/L <MDL 0.010 0.041 <MDL 0.041 <br />Manganese (Total) mg/L <MDL 0.029 0.077 0.02 0.066 <br />Mercu mg/L <MDL 0.0000 0.0004 0.0004 <MDL <br />Selenium m /L <MDL <MDL <MDL <MDL <MDL <br />Sodium mglL 429 492 539 488 539 <br />Zinc mg/L <MDL 0.01 0.04 0.02 0.03 <br />The area of concern for monitoring point OH-15 Aas not been affected by fhe mining operation. There/ore, all recorded <br />monifonng events are considered Baseline. <br />Dnll Hole 15 is located on the western edge o/the Stevens Draw mad. <br />Baseline Information Collection initiated on 6/12/95 and not yet consitlered complete. <br />Point DH-15 has not been influencetl by mining. <br />Figure No. 130 <br />