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Bowie Resources, LLC Surface Water <br />Bowie No. 1 Mine <br />2016 Annual Hydrology Report P1003 <br />East Roatcap Creek - Pond 10-3 <br />Depth - 3' <br />Elevation -8680 <br />Initiated 10/1/1991 10/1/1991 10/1/1991 <br />Activated 11/1/1993 11/1/1993 11/1/1993 <br />Date 1 9/28/2016 6/20/2016 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 0.7 2.539 0.0 <br />0.07 <br />0.75 <br />11.25 <br />Freeboard <br />Feet <br />0.0 <br />8 <br />0 <br />0 <br />0 <br />Temperature <br />Celsius <br />0.5 <br />.3 <br />13.7 <br />19.3 <br />8.2 <br />Conductivity <br />umhos/cm <br />80 123 155 70 <br />M4.226.25 <br />0 <br />146.5 <br />170 <br />220 <br />pH <br />su <br />7.2 <br />.7 <br />8.4 <br />8.4 <br />8.2 <br />Field Comments <br />Lab <br />Parameters <br />UNITS <br />Bicarbonate <br />mg/L <br />42.2 <br />70.7 <br />129.4 <br />79.2 <br />Carbonate <br />mg/L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />Chloride <br />mg/L <br /><MDL <br />26.51 <br />173.7 <br /><MDL <br />Conductivity <br />umhos/cm <br />76 <br />158 <br />373 <br />142 <br />Hardness <br />mg/L <br />0.52 <br />68.46 164.88 <br />78.3 <br />Acidity <br />mg/L <br />##### <br />1 -23.76 <br />20.69 <br />-77 <br />pH <br />su <br />6.6 <br />7.4 <br />8.2 <br />8.05 <br />ResidueFilterable-TDS <br />mg/L <br />28 <br />124 <br />260 <br />129 <br />ResidueNonFilterable-TSS mg/L <br />4 <br />42 <br />184 <br />29.2 <br />SAR <br />0.14 <br />0.25 <br />0.64 <br />0.163 <br />Sulfate <br />mg/L <br /><MDL <br />10.00 <br />30.00 <br />1.1 <br />Calcium (Dissolved) <br />mg/L <br />5.0 <br />16.5 <br />31.4 <br />19.7 <br />Iron (Dissolved) <br />mg/L <br />0.04 <br />0.22 <br />0.33 <br />0.0384 <br />Iron (Total) <br />mg/L <br />0.56 <br />1.34 <br />1.95 <br />1.68 <br />Magnesium (Dissolved) <br />mg/L <br />3.9 <br />7.0 <br />21 <br />7.08 <br />Manganese (Total) <br />mg/L <br /><MDL <br />0.090 <br />0.117 <br />0.0632 <br />Sodium (Dissolved) <br />mg/L <br />2.30 <br />4.95 <br />18.8 <br />3.23 <br />Negative value of acidity indictes equivalent value of alkalinity <br />Pond 10-3 is a man made pond (approximately 50'x 30) with an earthern berm located on the south and southeast sides. The pond is <br />located on the SWI14NE114 of Section 10, T13S, R92W. Source of surface water is from the Overland Ditch via both natural and man <br />made drainages. (Simon Hydro Search, 92) <br />Baseline Information for Point P1003 is derived from events beginning on 10/1/91 through 11/1/93. <br />Point influenced by mining on 11/1/93. <br />