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Bowie Resources, LLC Surface Water <br />Bowie No. 2 Mine <br />2012 Annual Hydrology Report S -4 <br />Terror Creek - Spring 4 <br />Elevation - 7880 <br />Initiated <br />Activated <br />Date <br />6/12/1995 <br />6/12/1995 <br />6/12/1995 <br />6/12/1995 <br />1/15/2001 <br />1 <br />1/15/2001 <br />1/15/2001 <br />1/15/2001 <br />10/10/2012 <br />8/7/2012 <br />6/14/2012 <br />4/11/2012 <br />Summary Information <br />Field <br />Parameters <br />Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Flow <br />GPM <br />0.00 <br />0.24 <br />3.75 <br />0.00 <br />0.20 <br />1.90 <br />0.11 <br />0.12 <br />0.14 <br />0.17 <br />FieldComment <br />ph <br />su <br />6.4 <br />7.4 <br />9.0 <br />7.1 <br />7.5 <br />7.8 <br />7.4 <br />7.8 <br />7.8 <br />7.7 <br />Conductivity <br />umhos /cm <br />80 <br />268 <br />433 <br />300 <br />374 <br />460 <br />430 <br />380 <br />310 <br />310 <br />Temperature <br />Celsius <br />1.2 <br />10.0 <br />24.0 <br />1.8 <br />6.5 <br />10.7 <br />6 <br />6.4 <br />6.5 <br />5.5 <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg /L <br />56 <br />56 <br />56 <br />231.8 <br />231.8 <br />231.8 <br />Chloride <br />mg /L <br />2 <br />2 <br />2 <br />49.63 <br />49.63 <br />49.63 <br />Conductivity <br />umhos /cm <br />99 <br />99 <br />99 <br />438 <br />441 <br />443 <br />Hardness <br />mg /L <br />44 <br />44 <br />44 <br />150.69 <br />150.69 <br />150.69 <br />Nitrate - Nitrite <br />mg /L <br />0.62 <br />0.62 <br />0.62 <br />0.32 <br />0.32 <br />0.32 <br />Oil and Grease <br />mg /L <br /><MDL <br /><MDLI <br /><MDL <br /><MDL <br /><MDLI <br /><MDL <br />pH <br />su <br />6.7 <br />6.7 <br />6.7 <br />6.8 <br />6.9 <br />7.1 <br />Phosphate <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />ResidueFilterable -TDS <br />mg /L <br />60 <br />60 <br />60 <br />236 <br />245 <br />253 <br />ResidueNonFilterable -TSS <br />mg /L <br />16 <br />16 <br />16 <br />1 <br />19 <br />36 <br />SAR <br />0.29 <br />0.29 <br />0.29 <br />1.851 <br />1.85 <br />1.85 <br />Sulfate <br />mg /L <br /><MDL <br /><MDLI <br /><MDL <br />60.51 <br />60.51 <br />60.51 <br />Aluminum (TREC) <br />mg /L <br />0.98 <br />0.98 <br />0.98 <br />0.039 <br />0.039 <br />0.039 <br />Arsenic (TREC) <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br />0.03 <br />0.03 <br />0.03 <br />Cadmium (TREC) <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br />0.01 <br />0.01 <br />0.01 <br />Calcium (TREC) <br />mg /L <br />13.6 <br />13.6 <br />13.6 <br />46 <br />46 <br />46 <br />Copper (TREC) <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br />0.011 <br />0.01 <br />0.01 <br />Iron (TREC) <br />mg /L <br />0.88 <br />0.881 <br />0.88 <br />0.151 <br />0.56 <br />0.97 <br />Lead (TREC) <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br />0.03 <br />0.03 <br />0.03 <br />Magnesium (TREC) <br />mg /L <br />2.4 <br />2.4 <br />2.4 <br />8.7 <br />8.7 <br />8.7 <br />Manganese (TREC) <br />mg /L <br />0.03 <br />0.03 <br />0.03 <br />0.020 <br />0.026 <br />0.032 <br />Mercury (TREC) <br />mg /L <br />0.0002 <br />0.0002 <br />0.0002 <br />0.00006 <br />0.00006 <br />0.00006 <br />Molyebdenum (TREC) <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br />0.005 <br />0.005 <br />0.005 <br />Selenium (TREC) <br />mg /L <br /><MDLI <br /><MDLI <br /><MDL <br />0.008 <br />0.008 <br />0.008 <br />Sodium (TREC) <br />I mg /L <br />4.51 <br />4.51 <br />4.5 <br />52.9 <br />52.9 <br />52.9 <br />Zinc (TREC) <br />I mg /L <br />I <MDLI <br /><MDLI <br /><MDL <br />0.005 <br />0.005 <br />0.005 <br />The monitoring point for S -4 is located along an unmarked road in an un -named gulch leading down from the broad ridge that <br />separates Sheep Corral and Freeman Gulches from Terror Creek. This spring feeds P -4. <br />Baseline Information for Point S -4 is derived from events beginning on 6/12/95 through 1/15/01. <br />Point influenced by mining on 1/15/01. <br />Figure No. 23 <br />