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Bowie Resources, LLC <br />Bowie No. 1 Mine <br />2008 Annual Hydrology Report <br />P1007 <br />East Roatcap Creek - Pond 10-7 <br />Depth - 4' <br />Elevation -8350 <br />Surface Water <br />Initiated 10/1/1991 10/1/1991 10/1/1991 10/1/1991 <br />Activated 2/1/1996 2/1/1996 2/1/1996 2/1/1996 <br />Date 11/30/2008 8/19/2008 6/27/2008 5/15/2008 <br />Summary Information <br />Baseline Operation <br />KA.. <br />Flow GPM 0.0 12.8 200 0.0 5.1 52.2 0 11.25 9.38 2.5 <br />Freeboard Feet 0.0 0.0 0 0.0 0.7 4 0.55 0 0 0 <br />Temperature Celsius 0.6 8.6 20.5 0.5 9.7 17.5 7.7 11.8 10.8 <br />Conductivity umhos/cm 130 375 540 160 372 570 360 350 290 <br />pH su 6.4 7.6 8.4 6.9 7.9 8.4 8.1 8.1 8.1 <br />Field Comments No Inflow <br />• <br />• <br /> UNITS <br />Bicarbonate mg/L 66.0 74.0 82 104.0 217.1 288 208.21 <br />Carbonate mg/L <MDL <MDL <MDL <MDL 3.7 20 <MDL <br />Chloride mg/L 1.0 1.0 1 <MDL 2.5 4.53 3.66 <br />Conductivity umhos/cm 128.0 141.0 154 198 399 508 351 <br />Hardness mg/L 63.0 67.5 72 96 196 260 189.98 <br />Ff su 7.6 7.8 7.9 7.4 8.0 8.5 8.27 <br />Residue Filterable-TDS mg/L 88.0 89.0 90 110 248 320 295 <br />ResidueNonFilterable-TSS mg/L 6.0 6.0 6 <MDL 13.9 28 24 <br />SAR 0.2 0.2 0.26 0.30 0.47 0.587 0.459 <br />Sulfate mg/L 12.0 12.0 12 <MDL 8.6 20 6.17 <br />Calcium (Dissolved) mg/L 15.8 17.4 19 22.8 45.7 65.2 42.39 <br />Magnesium (Dissolved) mg/L 5.7 5.8 6 8.6 19.9 33.16 20.43 <br />Sodium (Dissolved) mg/L 4.0 4.4 4.8 6.7 15.2 21 14.61 <br />TDS Ratio (arav./calc.) <MDL <MDL <MDL <MDL 0.91 1.15 1 <br />Pond 10-7 is a man made pond (approximately 25'x 25) with an earthen dam on the south side. The pond is located in the NE114SE114 of <br />Section 10, T1 3S, R92W. Source of surface water is from natural runoff and the Overland Ditch. (Simon Hydro Search, 92) <br />Baseline Information for Point P1007 is derived from events beginning on 10/1/91 through 2/1/96. <br />Point influenced by mining on 2/1/96. <br />Figure No. 29