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Bowie Resources, LLC <br />Bowie No. 1 Mine <br />2012 Annual Hydrology Report <br />P8800 <br />East Roatcap Creek - Pond 88 <br />Depth - 5' <br />Elevation -7790 <br />Summary Information <br />Surface Water <br />Initiated <br />6/14/1983 <br />6/14/1983 <br />6/14/1983F6/14/1983 <br />00 <br />Activated <br />10/1/1997 <br />1 <br />10/1/1997 <br />10/1/1997 <br />10/1/1997 <br />Date <br />10/3012012 <br />9/26/2012 <br />6/25/2012 <br />4/24/2012 <br />This large pond Is approximately 75'x 75' (Hanna, 99) <br />Baseline Information for Point P8800 is derived from events beginning on 6/14/83 through 10/1/97 <br />Point influenced by mining on 10/1/97 Figure No 34 <br />Revised 08/14/13 <br />Baseline Operation <br />UNITS Min Ave Max Min Ave Max <br />Flow <br />GPM <br />00 <br />1 2 <br />30 <br />00 <br />00 <br />075 <br />0 <br />0 <br />0 <br />0 <br />Freeboard <br />Feet <br />33 <br />46 <br />5 <br />21 <br />4.6 <br />58 <br />564 <br />566 <br />5 <br />314 <br />Temperature <br />Celsius <br />20 <br />172 <br />289 <br />08 <br />187 <br />298 <br />Conductivity <br />umhos/cm <br />800 <br />307 1 <br />449 <br />900 <br />2588 <br />380 <br />pH <br />Isu <br />49 <br />85 <br />103 <br />76 <br />81 <br />88 <br />Field Comments <br />Dryl <br />Empty <br />Empty <br />No Inflow <br />UNITS <br />Bicarbonate <br />mg /L <br />61 0 <br />146 1 <br />320 <br />1330 <br />133.0 <br />133 <br />Carbonate <br />mg /L <br /><MDL <br />79 <br />108 <br /><MDL <br /><MDL <br /><MDL <br />Chloride <br />mg /L <br /><MDL <br />56 <br />12 <br />1 0 <br />1 0 <br />1 <br />Conductivity <br />umhos/cm <br />1060 <br />2630 <br />404 <br />2670 <br />2670 <br />267 <br />Hardness <br />mg /L <br />370 <br />1084 <br />197 <br />1280 <br />1280 <br />128 <br />pH <br />su <br />69 <br />77 <br />93 <br />77 <br />77 <br />77 <br />Residue Filterable -TDS <br />mg /L <br />400 <br />1772 <br />318 <br />1500 <br />1500 <br />150 <br />ResidueNonFilterable -TSS <br />mg /L <br />20 <br />402 <br />212 <br />80 <br />80 <br />8 <br />SAR <br />02 <br />06 <br />101 <br />04 <br />0.4 <br />037 <br />Sulfate <br />mg /L <br /><MDL <br />125 <br />25 <br />200 <br />20.0 <br />20 <br />Calcium (Dissolved) <br />mg /L <br />10.0 <br />267 <br />49 <br />367 <br />367 <br />36.7 <br />Magnesium (Dissolved) <br />mg /L <br />30 <br />9 2 <br />15 <br />88, <br />881 <br />88 <br />Sodium (Dissolved) <br />mg /L <br />30 <br />136 <br />22 <br />97 <br />971 <br />97M <br />Potassium <br />1 mg /L <br /><MDL <br />21 <br />621 <br />TDS Ratio (grav /talc) <br />1 <br />1 09 <br />1 01 <br />1 04 <br />This large pond Is approximately 75'x 75' (Hanna, 99) <br />Baseline Information for Point P8800 is derived from events beginning on 6/14/83 through 10/1/97 <br />Point influenced by mining on 10/1/97 Figure No 34 <br />Revised 08/14/13 <br />