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Bowie Resources, LLC Surface Water <br />Bowie No. 1 Mine <br />2016 Annual Hydrology Report P1014 <br />East Roatcap Creek - Pond 10-14 <br />Depth - 3' <br />Elevation -8795 <br />Initiated 10/1/1991 10/1/1991 10/1/1991 <br />Activated 1/1/1994 1/1/1994 1/1/1994 <br />Date 1 9/28/2016 6/21/2016 5/12/2016 <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 1.4 15.53 0.0 <br />6.3 <br />61.9 <br />1.82 <br />30 <br />5.625 <br />Freeboard <br />Feet <br />0.0 <br />1.6 <br />3 <br />0 <br />0 <br />0 <br />Temperature <br />Celsius <br />0.2 <br />10.2 <br />22.4 <br />8.8 <br />12.4 <br />10.4 <br />Conductivity <br />umhos/cm <br />120 195 425 30 <br />207 <br />830 <br />133.9 <br />100 <br />180 <br />pH <br />su <br />7.2 <br />7.8 <br />8.51 <br />8.51 <br />8.3 <br />7.9 <br />Field Comments <br />01 <br />0 <br />0 <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg/L <br />41 <br />65 <br />106.7 <br />46.7 <br />Carbonate <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />Chloride <br />mg/L <br /><MDL <br />67 <br />384.6 <br /><MDL <br />Conductivity <br />umhos/cm <br />90 <br />148 <br />325 <br />89.6 <br />Hardness <br />mg/L <br />47 <br />63 <br />96.11 <br />47.1 <br />Acidity <br />mg/L <br />-69 <br />-16 <br />19.88 <br />-42 <br />pH <br />su <br />6.4 <br />7.5 <br />8.21 <br />7.79 <br />ResidueFilterable-TDS <br />mg/L <br />60 <br />136 <br />465 <br />91 <br />ResidueNonFilterable-TSS mg/L <br />1 <br />48 <br />208 <br />74.5 <br />SAR <br />0.10 <br />0.21 <br />0.51 <br />0.139 <br />Sulfate <br />mg/L <br /><MDL <br />6.9 <br />16.05 <br />1.8 <br />Calcium (Dissolved) <br />mg/L <br />6.41 <br />15.8 <br />24.8 <br />12.7 <br />Iron (Dissolved) <br />mg/L <br />0.06 <br />0.12 <br />0.22 <br />0.0644 <br />Iron (Total) <br />mg/L <br />0.20 <br />1.83 <br />3.82 <br />0.681 <br />Magnesium (Dissolved) <br />mg/L <br />3.6 <br />5.6 <br />9.77 <br />3.74 <br />Manganese (Total) <br />mg/L <br /><MDL <br />0.07 <br />0.152 <br />1 <br />0.152 <br />Sodium (Dissolved) <br />mg/L <br />1.7 <br />3.9 <br />8.92 <br />2.13 <br />A negative value of acidity indicates a value of alkalinity <br />Pond 10-14 is a man made pond (approximately 10'x 10) with an earthen dam on the east side. The pond is located in the SWI14NE1 <br />Section 10, T13S, R92W The source of the surface water is from the Overland Ditch and natural runoff. (Simon Hydro Search, 92) <br />Baseline Information for Point P1014 is derived from events beginning on 10/1/91 through 1/1/94. <br />Point influenced by mining on 1/1/94. <br />