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Bowie Resources Limited <br />Bowie No.1 Mine <br />2004 Annual Hydrology Report <br />P7501 <br />East Roatcap Creek -Pond 75-1 <br />Depth - 4' <br />Elevation -8055 <br />Surface Water <br />Initiated 10/1/1991 10!1!1991 1011/1991 10/1/1991 <br />Activated 8/1/1994 8/1/1994 8/111994 8/1/1994 <br />Date 12122/2004 911412004 613012004 4M2612004 <br />I• <br />Summary Information <br /> Baseline Opemtlon <br />UNITS Min Ave Max Min Ava Max <br />Fbw GPM 0.0 2.5 43 0.0 6.5 101.25 0 0 0 1 <br />Freeboard Feet 0.0 0.0 D 0.0 1.4 d 4 4 4 0 <br />Temperature Celsius 7.0 7.0 7 0.5 11.9 23.2 9.9 <br />Conductivity umMs/«n 180 236 280 120 433 840 280 <br />pH su 8.1 8.1 8.1 6.8 8.0 8.4 7.8 <br />Field Comments - Empty Puddle Puddle <br /> UNITS <br />Biprbonate mglL 102 102 102 82 141 337 <br />Carbonate mglL <MDL <MDL <MOL <MDL <MDL <MDL <br />Chbride mglL 2 2 2 1 4 12 <br />Conducivity umtros/cm 200 200 200 161 283 689 <br />HaMness m 90 90 90 75 129 301 <br />pH su 8.0 8.0 8 7.4 7.9 8.2 <br />ResidusFilte2ble-TOS m 118 118 118 90 168 390 <br />ResidueNonFitterablaTS m 6 28 60 <br />SAR 0.32 0.32 0.32 0.20 0.41 0.89 <br />Sulfate mglL 8 8 8 <MDL 17 30 <br />Caldum Dissolved) mglL 23.0 23.0 23 18.7 32.2 75.8 <br />Magnesium (Dissolved) mg/L 8.0 8.0 8 6.8 11.8 27,1 <br />Sodium (Dissolved mglL 7.0 7.0 7 4.4 11.9 35.1 <br />Potassium mg1L <MDL 0.7 2.8 <br />TDS Rath (grav./talc. 1.08 1.08 1.08 <MDL 0.56 1.13 <br />Pond 15.1 is a man made ports (approximately 20' x 257 with an earthen dam on its south side. The pond is boated in fhe NE1/4 0/ <br />Section 15, T13S, R92W. Origin o/surface water was observed to be born the Ovedand Oftclr. (Simon Hydro Search, 92J <br />Baseline Information (or Point P7501 is dedved from events beginning on 10/1/91 through 6/1/94. <br />Point influenced by mining on 6/1/94. <br />Figure No. 81 <br />