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• Bowie Resources, LLC <br />Bowie No. 1 Mine <br />2012 Annual Hydrology Report P1004 <br />East Roatcap Creek - Pond 10-4 <br />Depth - 3' <br />Elevation -8780 <br />Summary Information <br />Surface Water <br />Initiated <br />10/1/1991 <br />10/1/1991 <br />10/1/1991 <br />10/1/1991 <br />Activated <br />11/1/1993 <br />11/1/1993 <br />11/1/1993 <br />11/1/1993 <br />Date <br />11 /21 /2012 <br />9/26/2012 <br />6/26/2012 <br />4/25/2012 <br />Pond 10 -4 is a man made pond (approximately 50'x 50) with an earthen dam located on the south side The pond is located in the <br />SE114NW114 of Section 10, T13S, R92W Source of the surface water is from the Overland Ditch (Simon Hydro Search, 92) <br />Baseline Information for Point P1004 is derived from events beginning on 10/1/91 through 11/1/93 <br />Point influenced by mining on 11/1/93. Figure No. 26 <br />Revised 08/14/13 <br />Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Flow <br />GPM <br />04 <br />1 3 <br />1]225 <br />0 0 <br />10 4 <br />65 6 <br />094 <br />1 67 <br />3375 <br />375 <br />Freeboard <br />Feet <br />00 <br />00 <br />0 0 <br />0 1 <br />1 5 <br />0 <br />0 <br />0 <br />0 <br />Temperature <br />Celsius <br />0 4 <br />10 8 <br />23 9 <br />21 <br />78 <br />17 <br />11 5 <br />Conductivity <br />umhos/cm <br />1100 <br />1828 <br />40 <br />ill <br />140 <br />120 <br />110 <br />120 <br />pH <br />su <br />68 <br />80 <br />89 <br />81 <br />8 <br />82 <br />8 <br />Field Comments <br />UNITS <br />Bicarbonate <br />mg /L <br />31 <br />53 <br />90 <br />38.54 <br />Carbonate <br />mg /L <br /><MDL <br /><MDL <br /><MDL <br /><MDL <br />Chloride <br />mg /L <br /><MDL <br />2629 <br />26006 <br />26006 <br />Conductivity <br />umhos /cm <br />68 <br />115 <br />234 <br />70 <br />Hardness <br />mg /L <br />2875 <br />47.57 <br />8600 <br />5458 <br />Acidity <br />mg /L <br />1 <br />4.00 <br />1335 <br />2909 <br />4 <br />pH <br />su <br />66 <br />74 <br />81 <br />76 <br />ResidueFilterable -TDS <br />mg /L <br />6 <br />99 <br />315 <br />315 <br />Residue Non Filterable -TSS <br />mg /L <br />2 <br />37 <br />96 <br />8 <br />SAR <br />0 097 <br />0 176 <br />0 297 <br />0.27 <br />Sulfate <br />mg /L <br /><MDL <br />21 9 <br />135 <br />329 <br />Calcium (Dissolved) <br />mg /L <br />51 <br />11 9 <br />22 0 <br />146 <br />Iron (Dissolved) <br />mg /L <br />022 <br />039 <br />0 74 <br />022 <br />Iron (Total) <br />mg /L <br />043 <br />272 <br />5 89 <br />043 <br />Magnesium (Dissolved) <br />mg /L <br />271 <br />44 <br />7 6 <br />4.4 <br />Manganese (Total) <br />mg /L <br /><MDL <br />0 034 <br />0 034 <br /><MDL <br />Sodium (Dissolved) <br />mg /L <br />1 39 <br />278 <br />4 60 <br />46 <br />TDS Ratio (grav /talc) <br />% <br />0 07 <br />1 08 <br />1 79 <br />0 97 <br />Pond 10 -4 is a man made pond (approximately 50'x 50) with an earthen dam located on the south side The pond is located in the <br />SE114NW114 of Section 10, T13S, R92W Source of the surface water is from the Overland Ditch (Simon Hydro Search, 92) <br />Baseline Information for Point P1004 is derived from events beginning on 10/1/91 through 11/1/93 <br />Point influenced by mining on 11/1/93. Figure No. 26 <br />Revised 08/14/13 <br />