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Bowie Resources, LLC Surface Water <br />Bowie No. 2 Mine <br />2016 Annual Hydrology Report NFG-up <br />North Fork - Drainage System <br />Elevation - 5880 <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 />8.5 <br />8.8 <br />7.5 <br />1 <br />8.3 <br />9.7 <br />8.3 <br />8.5 <br />8.4 <br />8.6 <br />Conductivity <br />umhos/cm <br />160 <br />167 <br />180 <br />50 <br />171 <br />320 <br />223 <br />171 <br />100 <br />200 <br />Temperature <br />Celsius <br />3.6 <br />7.3 <br />13.7 <br />0.2 <br />10.8 <br />22.6 <br />5.3 <br />13..2 <br />13.9 <br />5.1 <br />DO <br />mg/L <br />7.2 <br />9.3 <br />11.8 <br />1 <br />1 <br />8.46 <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg/L <br />88 <br />93 <br />98 <br />31 <br />83 <br />203 <br />108 <br />45.8 <br />Chloride <br />mg/L <br />2.0 <br />2.5 <br />3.0 <br /><MDL <br />36.1 <br />471.5 <br />2.8 <br />1.2 <br />0.61 <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 />0.008 <br />0.008 <br /><MDL <br />Cyanide, Total <br />mg/L <br /><MDL <br />0.067 <br />0.081 <br /><MDL <br />Conductivity <br />umhos/cm <br />185 <br />205 <br />225 <br />7 <br />208 <br />668 <br />186 <br />76 <br />Hardness <br />mg/L <br />74 <br />77 <br />79 <br />26.5 <br />77.3 <br />193.0 <br />89.60 <br />41.40 <br />Nitrate <br />mg/L <br /><MDL <br />0.05 <br />0.09 <br /><MDL <br />0.38 <br />3.47 <br /><MDL <br /><MDL <br />0.027 <br />Nitrate/Nitrite <br />mg/L <br />0.00 <br />0.05 <br />0.09 <br /><MDL <br />0.3 <br />3 <br /><MDL <br /><MDL <br /><MDL <br />Nitrite <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.004 <br />0.017 <br /><MDL <br /><MDL <br /><MDL <br />Ammonia <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.04 <br />0.23 <br /><MDL <br />Oil & Grease <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />7 <br />11 <br /><MDL <br /><MDL <br /><MDL <br />pH <br />su <br />7.9 <br />8.0 <br />8.0 <br />6.9 <br />7.9 <br />9.0 <br />8.2 <br />8.13 <br />8.07 <br />Phosphate <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.02 <br />0.08 <br /><MDL <br /><MDL <br />ResidueFilterable-TDS <br />mg/L <br />120 <br />130 <br />140 <br />9 <br />151 <br />522 <br />120 <br />108 <br />63 <br />ResidueNonFilterable-TSS mg/L <br />10 <br />11 <br />12 <br /><MDL <br />21 <br />131 <br />39.4 <br />7.1 <br />SAR <br />0.42 <br />0.60 <br />0.78 <br /><MDL <br />0.67 <br />2.39 <br />0.478 <br />0.277 <br />Sulfate <br />mg/L10 <br />15 <br />20 <br /><MDL <br />20 <br />80 <br />10.2 <br />7.5 <br />6.9 <br />Sulfide S <br />mg/L <br /><MDL <br />0.05 <br />0.05 <br /><MDL <br />Aluminum (TREC) <br />mg/L <br />0.08 <br />0.18 <br />0.27 <br /><MDL <br />0.46 <br />2.78 <br />0.366 <br />0.169 <br />Arsenic (TREC) <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.0043 <br />0.0350 <br /><MDL <br /><MDL <br /><MDL <br />Boron <br />mg/L <br />0.02 <br />0.49 <br />1.20 <br /><MDL <br />Cadmium (TREC) <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.007 <br />0.031 <br /><MDL <br /><MDL <br /><MDL <br />Calcium (TREC) <br />mg/L <br />21.9 <br />22.9 <br />24.0 <br />7.0 <br />24.2 <br />138.0 <br />27.7 <br />21.7 <br />13 <br />Copper (TREC) <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.012 <br />0.197 <br /><MDL <br /><MDL <br /><MDL <br />Iron, Dissolved <br />mg/L <br /><MDL <br />0.95 <br />22.80 <br />0.0135 <br />0.0374 <br />0.0236 <br />Iron (TREC) <br />mg/L <br />0.091 <br />0.09 <br />0.09 <br />0.03 <br />1.99 <br />81.00 <br />0.323 <br />0.188 <br />Lead (TREC) <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.0121 <br />0.1200 <br /><MDL <br /><MDL <br /><MDL <br />Magnesium (TREC) <br />mg/L <br />4.70 <br />4.70 <br />4.70 <br />1.88 <br />5.53 <br />23.40 <br /><MDL <br />3.94 <br />2.16 <br />Manganese (Dissolved) <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.301 <br />2.90 <br /><MDL <br />Manganese (TREC) <br />mg/L <br />0.011 <br />0.015 <br />0.019 <br /><MDL <br />0.182 <br />7.600 <br />0.0373 <br />0.0166 <br />0.008 <br />Mercury (TREC) <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL 0.00006 0.00022 <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 />0.01 <br />0.01 <br /><MDL <br />Selenium (TREC) <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />0.003 <br />0.027 <br /><MDL <br /><MDL <br />Silver <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />Sodium (TREC) <br />mg/L <br />8.6]2.0115.3 <br />3.3 <br />15.5 <br />73.5 <br />10.4 <br />3.9Zinc <br />(TREC) <br />mg/L <br />0.020025 <br />0.030 <br /><MDL1 <br />0.0121 <br />0.050 <br /><MDL <br /><MDL1 <br /><MDL <br />Field parameters, except flow in the Upper North Fork of the Gunnison River monitoring point are taken on the river just above its confluence with <br />Hubbard Creek. 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 />** Data not provided in field notes/laboratory data <br />Baseline Information for Point NFG-up is derived from events beginning on 9/30/96 through 3/31/97. <br />Point influenced by mining on 3/31/97. <br />Figure 81 <br />