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Bowie Resources, LLC Surface Water <br />Bowie No. 1 Mine <br />2015 Annual Hydrology Report P1002 <br />East Roatcap Creek - Pond 10-2 <br />Depth - 3' <br />Elevation -8630 <br />Initiated 10/1/1991 10/1/1991 10/1/1991 10/1/1991 <br />Activated 10/1/1993 10/1/1993 10/1/1993 10/1/1993 <br />Date 1 11/10/2015 9/11/2015 6/21/2015 4/10/2015 <br />Summary Information <br />Field <br />Parameters <br />UNITS <br />Baseline Operation <br />Min Ave Max Min Ave <br />Max <br />Flow <br />GPM <br />0.0 0.6 0.8977 0.0 <br />7.1 <br />78.75 0 0 <br />1.25 0 <br />Freeboard <br />Feet <br />0.0 <br />0.1 <br />3.15 <br />0.775 0.1 <br />Temperature <br />Celsius <br />0.6 <br />10.8 <br />24.5 <br />19.1 <br />Conductivity <br />umhos/cm <br />120 126 130 60 <br />259 <br />510 <br />250 <br />pH <br />su <br />5.8 <br />8.0 <br />9.8 <br />8.2 <br />Field Comments <br />Seep Onlyl Seep Onlyl <br />I Seep Only <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg/L <br />48 <br />124 <br />219 <br />121 <br />Carbonate <br />mg/L <br /><MDL <br />1.2 <br />12 <br /><MDL <br />Chloride <br />mg/L <br /><MDL <br />34.22 210.93 <br />1 <br />Conductivity <br />umhos/cm <br />91 <br />229 <br />465 <br />243 <br />Hardness <br />mg/L <br />4.30 <br />106.86 <br />199.00 <br />122 <br />Acidity <br />mg/L <br />1 -124.00 <br />-16.76 <br />22.21 <br />-124 <br />pH <br />su <br />6.8 <br />7.7 <br />8.4 <br />8.05 <br />ResidueFilterable-TDS <br />mg/L <br />50 <br />169 <br />440 <br />170 <br />ResidueNonFilterable-TSS mg/L <br />0.3 <br />48 <br />497 <br />56 <br />SAR <br />0.13 <br />0.26 <br />0.54 <br />0.227 <br />Sulfate <br />mg/L <br /><MDL <br />8.64 <br />20.00 <br />2.3 <br />Calcium (Dissolved) <br />mg/L <br />1 11.2 <br />24.6 <br />44.7 <br />29.2 <br />Iron (Dissolved) <br />mg/L <br />0.01 <br />0.04 <br />0.08 <br />0.0547 <br />Iron (Total) <br />mg/L <br />0.03 <br />0.62 <br />1.76 <br />1.76 <br />Magnesium (Dissolved) <br />mg/L <br />3.5 <br />13.0 <br />29.4 <br />11.8 <br />Manganese (Total) <br />mg/L <br /><MDL <br />0.034 0.0871 1 <br />0.0871 <br />Sodium (Dissolved) <br />mg/L <br />2.1 <br />7.01 <br />15.4 i 1 <br />6.04 <br />TDS Ratio (gray./calc.) <br />% <br />1 1 0.741 <br />1.081 <br />1.49 <br />Pond 10-2 is a man made pond (approximately 30'x 20) with an earthen berm on the south side. The pond is located in the NW114SE114 <br />of Section 10, T13S, R92W. The source of the water for this point is from both runoff and the Overland Ditch via natural drainage. <br />(Simon Hydro Search, 92) <br />Baseline Information for Point P1002 is derived from events beginning on 10/1/91 through 10/1/93. <br />Point influenced by mining on 10/1/93. <br />Figure No. 41 <br />