REP49914 - Laserfiche WebLink

Home Browse Search

I • Bowie Resources Limited Bowie No. 2 Mine 2002 Annual Hydrology Report NFG-low North Fork -Drainage System Elevation - 6680 Initiated 9!30!7996 9/30/1996 9/30/7996 9/30/1996 Activated 3/31/1997 3/31/1997 3/31/1997 3/31!1997 Date 11/22/2002 9/24/2002 6/24/2002 4/30/2002 Summary Information • 1, 11I _J P e _ Baseline Operation UNITS Min Ave Max Min Ave Max Flow CFS 99 292 670 53 546 2390 57.003 242.01fi 447.029 FieltlComment Frozen ph su 8.7 8.4 8.7 7.6 8.3 8.7 7.7 8.1 8.3 7.6 Conductivity umhos/cm 760 180 200 60 179 280 230 210 200 80 Temperature Celsius 4.0 8.5 74.6 0.5 17.7 19.7 4.5 16.7 16.8 8.3 DO mg/L 0.0 6.7 11.2 10.90 9.10 0.00 10,90 .a rs UNITS Bicarbonate m !L 95 100 105 45 93 123 779 98 Chloritle mg/L 2 3 3 <MDL 2 5 5 2 Chromium III Crlll mglL <MDL <MDL <MDL Chromium VI CrIV mg/L <MDL <MDL <MDL Cyanide, Total m /L <MDL <MDL <MDL Conductivity umhos/cm 207 222 242 101 201 283 283 243 Hardness mg/L 84 85 85 <MDL 76 112 82 107 Nitrate mg/L <MDL 0.08 0.16 <MDL 0.13 0.46 <MDL 0.04 Nitrite mg/L <MDL <MDL <MDL <MDL 0.001 0.01D <MDL <MDL Ammonia m L <MDL <MDL <MDL <MDL <MDL <MDL Oil & Grease mg/L <MOL <MDL <MDL <MDL 3 3 3 <MDL pH su 8.0 8.0 8.0 7.0 7.7 8.2 8 8.2 Phosphate m9IL <MDL <MDL <MDL <MDL 0.01 0.05 <MDL <MDL ResidueFilterzble-TDS mg/L 130 140 150 60 125 170 150 140 ResidueNanFiltemble-TS mg/L <MDL 3 6 <MDL 71 52 <MOL <MDL SAR 0.55 0.61 0.66 <MDL 0.44 1.17 1.17 0.42 Sulfate mg/L 10 15 20 <MDL 78 30 30 30 Sulfide S mg/L <MDL <MDL <MDL Aluminum m /L 0.70 0.15 0.21 0.05 0.41 1.29 D.7 0.17 Arsenic m9/L <MDL 0.001 0.001 <MDL 0.0002 0.0010 <MDL <MDL Boron mg/L <MDL <MDL <MOL Cadmium mg/L <MDL <MDL <MOL <MDL <MDL <MDL <MDL <MDL Calcium mg/L 24.6 24.8 25.0 9.7 23.1 34,7 23.4 29.5 Copper mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL Iron (Dissolved) m /L <MDL <MDL <MDL <MDL D.00 0.02 Iron Total) mg/L D.14 4.21 0.27 0.07 0.37 1.48 0,10 0.18 Lead mg/L <MDL 0.010 0.020 <MDL 0.0047 0.0500 <MDL 0.001 Magnesium mg/L 5 5.5 5.7 2.0 5.2 7.7 5.6 7.2 Manganese (Dissolved) mg/L <MDL <MDL <MDL <MDL 0,324 2.900 Man anese (Total) mg/L 0.021 0.090 0.160 0.007 0,019 0.034 0.007 0.019 Mercury mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL Mol ebtlenum m /L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL Nickel mg/L <MDL <MDL <MDL Selenium mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL Silver mg/L <MDL <MDL <MDL Sodium m /L 17.5 12.2 12.9 3.0 73.4 27.1 27.7 77.6 Zinc m /L 0.02 0.02 0.03 <MDL 0.01 0.02 <MDL <MDL Field parameters, except flow, /or the Lower North Fork o/the Gunnison River are taken on the river approximately 7500' below the confluence 0/ Terror Creek and the North Fork o/the Gunnison. Flow data lot the North Fork o/the Gunnison river is obtained Imm USGS stafion #09132500. Surface Water Baseline lnbnnation far Painf NFG-low is derived from evenboeginning on 4/30/86 through 3/3157. Point inRaenced by mining on 3/37/97. MODIfOrIng POlnf Table 83 Revised 03/04