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Bowie Resources Limited <br />Bowie No. 1 Mine <br />2003 Annual Hydrology Report <br />P1007 <br />East Roatcap Creek -Pond 10-7 <br />Depth - 4' <br />Elevation -8350 <br />Surface Water <br />Initiated 1011/1991 10ItA991 101111991 10/111991 <br />Activated 2/111996 2/111996 2/1/1996 2!1l199fi <br />Date 1222/2003 920/2003 6!30/2003 41252003 <br /> <br />Summary Information <br />Field <br />P.aramete Baseline Operation <br />UNITS Min Ave Max ~ Min Ave Max <br />Flow GPM 0.0 12.8 200 0.0 5.9 52.2 0 0 0.5 3 <br />Freeboard Feet 0.0 0.0 0 0.0 7.2 a 4 0.39 0 0 <br />Temperature Celsius 0.6 8.6 20.5 0.6 9.8 17.5 13.5 7.5 <br />Conductivity umhos/cm 130 375 540 160 393 570 390 240 <br />pH su 6.4 7.6 8.4 6.9 7.8 8.4 7.7 7.7 <br />Field Comments Seep No Inflow <br />game a UNITS <br />Bicarbonate m /L 66.0 74.0 82 104.0 211.3 288 280 <br />Carbonate m !L <MDL <MDL <MDL <MDL 4.3 20 20 <br />Chloride mg/L 1.0 1.0 1 1.0 2.3 3 2 <br />Conductivi umhos/cm 120.0 141.0 154 198.0 382.7 508 508 <br />Hardness m 2 63.0 67.5 72 96.0 190.5 260 260 <br />pH su 7.6 7.8 7.9 7.6 7.9 8.5 8.5 <br />ResidueFilterable-TDS mg/L 88.0 89.0 90 110.0 226.7 320 290 <br />ResidueNOnFilterable-TS m /L 6.0 6.0 6 6.0 16.0 26 20 <br />SAR 0.2 0.2 0.26 0.3 0.4 0.57 0.47 <br />Sulfate mg/L 12.0 12.0 12 <MDL 6.7 10 10 <br />Calcium (Dissolved) m /L 15.8 17.4 19 24.2 47.8 65.2 65.2 <br />Magnesium (Dissolved) m /L 5.7 5.8 6 B.6 17.5 24 23.5 <br />Sodium (Dissolved) mglL 4.0 4.4 4.8 6.7 14.0 21 17.2 <br />Potassium mg/L 0.0 0.0 0 <MDL 0.5 1.6 <br />TDS Ratio (grav./talc.) <MDL <MDL <MDL <MDL 0.6 1.15 <br />Pond 10-7 is a man made pontl (approximately 25' x 25~ with an earthen dam on the south side. The pond is /orated in the NEf/4SE1/4 0/ <br />Section f 0, T 135, R921N Source ofsurface water is from nature/ runoHand the Overland Ditch. (Simon Hydro Search, 92) <br />Baseline Information for Point P1007 is derived from events beginning on 10/1197 through 211/96. <br />Point influenced by mining on 2/1!96. <br />Figure No. 68 <br />