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i• Bowie Resources, LLC Bowie No. 2 Mine 2006 Annual Hydrology Report Deer-up Canal -Deer Trail Ditch Elevation - 6960 Surface Water Initiated 8/74/7995 8/14/7995 6/14/1995 8/74/1995 6/74/1995 Activated 3/30/7997 3/30/1997 3/30/1997 3r30/1997 3/30/1997 Date 12212005 9282005 8/17/2005 627/2005 3/79/2005 Summary Information • • e Baseline Operation UNITS Min Ave Max Min Ave Max Flax CFS 0.8 2.4 8.0 0.2 1.8 4.8 2.48 1.84 2.09 0.16 1.71 Water Level in Flume Feet 0.23 0.44 t.00 0.08 0.36 0.72 0.47 0.36 0.42 0.08 0.28 FieldCammeM ph su 6.4 8.5 9.1 7.4 8.4 9.1 8.5 8.5 8.5 8.1 8.1 Conduc8viry umhos/an 70 286 868 60 188 320 190 190 220 60 70 Temperature Celsius 0.8 11.4 20.3 0.2 70.1 20.7 0.2 71.9 14.9 13.5 6.8 DO 0.0 3.5 7.7 0.0 8.8 77.7 77.6 9.8 9.2 9.2 { ~a ~'ir zR ~ Z z a,°~ UNITS Bicarbonate mg/L 51 73 717 48 114 144 111 48 Carbonate mg/L <MDL <MDL <MDL <MDL 2 8 3 <MDL Chloride mg/L <MDL 2 3 <MDL 2 5 2 2 <MDL Chromium III Crlll mg/L <MDL <MDL <MDL <MDL Chromium VI CtlV mglL <MDL 0.01 0.07 0.01 Cyanide, Total mglL <MDL <MDL <MDL <MDL Conductlvity umnos/an 100 148 235 700 226 322 238 700 Hartlness mg/L 42 81 94 <MDL 90 727 93 112 43 Nitrate mg/L <MDL 0,02 0.07 <MDL 0.2 1.3 0.07 0.02 <MDL NiMte mg/L <MDL 0,01 0.02 <MDL <MDL <MDL <MDL 0.01 <MDL Ammonia mglt. <MDL <MDL <MDL <MDL Oil and Grease mglL <MDL <MDL <MDL <MDL 3 3 <MDL <MDL pH su 7.8 7.6 8.1 6.4 8.0 8.6 8.4 8.6 8.0 Phos hate mg/L <MDL 0,07 0.03 <MOL 0.01 0.08 0.06 <MDL ResidueFiltereble-TDS m /L 50 100 t50 80 t46 220 150 80 80 ResitlueNonFillerable-TSS mg/L <MDL 25 52 cMDL 10 40 <MDL <MDL SAR 0.24 0.37 062 <MDL 0.55 1.04 0.73 0.25 SWfate <MDL 10 20 <MDL 11 30 10 10 <MDL Sulfide S mgll. <MDL 0.13 0.73 0.13 Aluminum mg/L 0.24 1.09 1.77 0.08 040 2.03 D.78 0.60 Arsenic mgA <MDL 0.0003 0.0010 <MDL 0.0005 0.0010 0.0005 0.0008 0.0006 Boron mg/L <MDL 0.01 0.01 0.070 Cadmium mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL Caluum m 2 11.8 77.2 26.5 72.4 28.7 35.5 26.5 32 12.4 Copper mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL Iron (Dissolved) mglL 0.00 0.00 0.00 0.0 0.0 0.2 0.73 Iron (Total) mg/L 0.38 7.79 1.85 O.tB 0.52 7.93 0.36 1.93 0.57 Leatl m L <MDL <MDL <MDL <MDL 0.0029 0.0500 0.0002 0.0008 0.0007 Magnesium mg/L 3.0 4.4 6.7 2.9 6.7 9.2 6.6 7.6 2.9 Manganese (Dissolved) m /L 0.0 0.0 0.0 0.0 7.1 8.7 0.029 Manganese (total) mg/L 0.02 0.03 0.03 0.009 0.020 0.041 0.015 0.041 0.026 Mercury mg/L <MDL 0.0007 0.0002 <MDL O.OD00 0.0004 <MDL 0.0004 <MDL Molyebdenum mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL Nickel mg/L <MDL <MDL <MDL <MDL Selenium mg/L <MDL <MDL <MDL <MDL 0.00110 0.0002 <MDL <MDL <MDL Silver mg/L <MDL <MDL <MDL <MDL Sodium (Total) mg/L 3.8 7.1 13.8 3.8 15.3 30.0 76.2 3.8 Zinc mg/L 0.01 0.02 0.03 <MDL 0.01 0.03 <MDL <MDL <MDL The uppereiW orCeer Trail fA7th is monitored at the headgate loceted on Hubbartl Creek. This monitoring point is fitted with a 2' Parshall Flume. Baseline Inlonnalion for Point Dear-up is derived from events beginning on 6/14/95 through 3130/97. Point influencetl by mining on 3/30197. Figure No. 106