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Bowie Resources, LLC Surface Water <br />Bowie No. 2 Mine <br />2016 Annual Hydrology Report NFG-low <br />North Fork - Drainage System <br />Elevation - 5680 <br />Initiated 9/30/1996 9/30/1996 9/30/1996 9/30/1996 <br />Activated 3/31/1997 3/31/1997 3/31/1997 3/31/1997 <br />Date 10/27/2016 8/11/2016 6/27/2016 3/22/2016 <br />Summary Information <br />Field <br />Parameters <br />UNITS <br />Baseline <br />Min Ave <br />Max <br />Operation <br />Min Ave <br />Max <br />Flow <br />CFS <br />99 <br />292 <br />610 <br />53 <br />477 <br />2910 <br />89 <br />237 <br />545 <br />224 <br />FieldComment <br />ph <br />su <br />8.1 <br />8.4 <br />8.7 <br />7.6 <br />1 <br />8.3 <br />9.1 <br />8.4 <br />8.7 <br />8.4 <br />8.5 <br />Conductivity <br />umhos/cm <br />160 <br />180 <br />200 <br />50 <br />187 <br />320 <br />239 <br />214 <br />110 <br />200 <br />Temperature <br />Celsius <br />4.0 <br />8.5 <br />14.6 <br />0.3 <br />11.4 <br />22.6 <br />6.9 <br />14.6 <br />15.4 <br />5.9 <br />DO <br />mg/L <br />0.0 <br />8.5 <br />11.5 <br />1 <br />1 <br />8.25 <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg/L <br />95 <br />100 <br />105 <br />28.1 <br />83.7 <br />138.7 <br />112 <br />48.4 <br />Chloride <br />mg/L <br />2.00 <br />2.50 <br />3.00 <br /><MDL <br />29.09 <br />288.30 <br />3 <br />1.9 <br />0.76 <br />Chromium III Crlll <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />Chromium VI CrIV <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />Cyanide, Total <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />Conductivity <br />umhos/cm <br />201 <br />222 <br />242 <br />78 <br />220 <br />754 <br />198 <br />78.2 <br />Hardness <br />mg/L <br />84 <br />85 <br />85 <br /><MDL <br />86.44 <br />270.40 <br />93.7 <br />42.9 <br />Nitrate <br />mg/L <br /><MDL <br />0.08 <br />0.16 <br /><MDL <br />0.37 <br />3.90 <br /><MDL <br /><MDL <br />0.026 <br />Nitrate -Nitrite <br />mg/L <br />0.00 <br />0.08 <br />0.16 <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />Nitrite <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.002 <br />0.010 <br /><MDL <br /><MDL <br /><MDL <br />Ammonia <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.06 <br />0.31 <br />0.07 <br /><MDL <br />Oil & Grease <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />4 <br />5 <br /><MDL <br /><MDL <br /><MDL <br />pH <br />su <br />8.0 <br />8.0 <br />8.0 <br />7.0 <br />7.9 <br />8.8 <br />8.21 <br />8.15 <br />8.05 <br />Phosphate <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.02 <br />0.10 <br /><MDL <br /><MDL <br />ResidueFilterable-TDS <br />mg/L <br />130 <br />140 <br />150 <br />50 <br />164 <br />692 <br />135 <br />129 <br />65 <br />ResidueNonFilterable-TSS mg/L <br /><MDL <br />3 <br />6 <br /><MDL <br />20 <br />141 <br />37.4 <br />6.6 <br />SAR <br />0.55 <br />0.61 <br />0.66 <br /><MDL <br />0.64 <br />2.42 <br />0.499 <br />0.291 <br />Sulfate <br />mg/L <br />10.0 <br />15.01 <br />20.0 <br /><MDL <br />17.1 <br />82.5 <br />12.3 <br />13.2 <br />Sulfide S <br />mg/L <br /><MDL <br />0.04 <br />0.04 <br /><MDL <br />Aluminum (TREC) <br />mg/L <br />0.10 <br />0.15 <br />0.21 <br /><MDL <br />0.36 <br />1.32 <br />0.621 <br />0.125 <br />Arsenic (TREC) <br />mg/L <br /><MDL <br />0.001 <br />0.001 <br /><MDL <br />0.0061 <br />0.0500 <br /><MDL <br /><MDL <br /><MDL <br />Boron <br />mg/L <br />0.02 <br />0.56 <br />1.35 <br /><MDL <br />Cadmium (TREC) <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.0029 <br />0.0180 <br /><MDL <br /><MDL <br /><MDL <br />Calcium (TREC) <br />mg/L <br />24.6 <br />24.8 <br />25.0 <br />6.9 <br />27.1 <br />132.0 <br />28.2 <br />26.6 <br />13.4 <br />Copper (TREC) <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.011 <br />0.198 <br /><MDL <br /><MDL <br /><MDL <br />Iron, Dissolved <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.41 <br />12.90 <br />0.0175 <br />0.1 <br />0.0208 <br />Iron (TREC) <br />mg/L <br />0.14 <br />0.21 <br />0.27 <br /><MDL <br />0.39 <br />4.17 <br />0.443 <br />0.145 <br />Lead (TREC) <br />mg/L <br /><MDL <br />0.010 <br />0.020 <br /><MDL <br />0.0120 <br />0.1500 <br /><MDL <br /><MDL <br /><MDL <br />Magnesium (TREC) <br />mg/L <br />5.30 <br />5.50 <br />5.70 <br />2.00 <br />6.15 <br />18.80 <br />5.65 <br />5.91 <br />2.29 <br />Manganese (Dissolved) <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.177 <br />2.900 <br />0.0155 <br />Manganese (TREC) <br />mg/L <br />0.021 <br />0.090 <br />0.160 <br />0.007 <br />0.032 <br />0.290 <br /><MDL <br />0.0212 <br />0.0117 <br />Mercury (TREC) <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL 0.00007 0.00030 <br /><MDL <br /><MDL <br /><MDL <br />Molyebdenum (TREC) <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.004 <br />0.030 <br /><MDL <br /><MDL <br />Nickel <br />mg/L <br /><MDL <br />0.010 <br />0.010 <br /><MDL <br /><MDL <br />Selenium (TREC) <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.004 <br />0.034 <br /><MDL <br /><MDL <br /><MDL <br />Silver <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />Sodium (TREC) <br />mg/L <br />11.5 <br />12.2 <br />12.9 <br />3.0 <br />15.8 <br />91.5 <br />10.9 <br />4.0 <br />Zinc (TREC) <br />mg/L <br />0.02 <br />0.02 <br />0.03 <br /><MDL <br />0.01 <br />0.04 <br /><MDL <br /><MDL <br /><MDL <br />Field parameters, except flow, for the Lower North Fork of the Gunnison River are taken on the river approximately 1500' below the confluence of <br />Terror Creek and the North Fork of the Gunnison. Flow data for the North Fork of the Gunnison river is obtained from USGS station #09132500. <br />*The Contractor who conducts the field monitoring forgot to take August sample for Surface List #2 Analysis, however <br />a sample for Surface List #2 was collected in September. <br />Baseline Information for Point NFG-low is derived from events beginning on 9/30/96 through 3/31/97. Point influenced by mining on 3/31/97. <br />Figure 79 <br />