2009-07-01_REPORT - C1980007 (8)

Home Browse Search

Spring J-7 Water Quality and Field Parameters • I Mountain Coal West Elk Mine Monitoring Location : Spring J-7 Baseline' 2008 Water Year Description Units Minimum Maximum Mean ° 5/5/2008 6/8/2008 MDL 8/22/2008 Field Parameters Flow m 0.19 9.09 4.29 260 14.25 D Electrical Conductive mhos/cm 242 496 376 239 359 H SU 6.55 6.25 7.60 7.88 8.15 Temperature °C 9.7 21.0 15.4 10.0 19.7 Comment Laboratory Parameters Name of Certified Lab Enviro-Chem Lab Reference # 08/936 Sample Date 6/8/2008 Lab Test Date 6/9-7/31 Sampled B P. Holder Alkalinity (Total CaC03) mg/l 121 188 142 122.42 2.000 Aluminum, dissolved m /I -0.03 0.05 0.03 0.534 0.01 Aluminum, total m /I Anions me /I 2.7 4.4 3.8 4.124 calc Arsenic, dissolved m /l Arsenic, total m /I -0.005 0.0008 0.002 0.017 0.001 Bicarbonate m /I 116 168 140 Boron, dissolved m /I -0.01 0.02 0.61 0.01 Cadmium, dissolved m /I -0.005 -0.005 0.001 0.001 Calcium, total m /l Calcium, dissolved m /I 21.1 33.9 30.3 32.8 0.1 Carbonate m /I -2 7 1 Cation -Anion Balance % -7.3 0 -2.60 8.29 calc Cations me /I 2.6 4.3 3.6 4.497 calc Chloride m /I 2 4 3 1.44 0.1 Conductive mhos/cm 250 426 354 228.64 1 Copper, dissolved m /I -0.01 -0.01 -0.01 0.013 0.002 Hardness m /l 79 125 107 116.82224 talc Hydroxide m /I -2 -2 -2 Iron, dissolved m /I 0.02 0.11 0.05 0.17 0.01 Iron, total m /I 0.53 1.96 1.02 3.14 0.01 Lead, dissolved m /I -0.04 -0.04 -0.04 0 0.005 Magnesium, dissolved m /I 6.3 9.9 7.5 8.48 0.1 Manganese, dissolved m /I -0.005 0.005 -0.005 0.006 04005 Manganese, total m /I -0.005 04037 0.019 0.029 0.005 Mercury, total m /I -0.0002 -0.0002 -0.0002 0.00004 0.000025 Molybdenum, dissolved m /l -0.01 0.01 -0.01 0 0.001 Nitrate as N m /l 0 0.13 Nitrate/Nitrite as N m q/1 0.02 0.33 0.16 0 0.13 Nitrite as N m /1 0.01 0.01 H SU 7.6 8.4 8.2 7.65 0.1 Phosphate m /l -0.03 0.24 0.09 0.02 0.01 Phosphorus Ortho , dissolved m /I -0.01 0.08 0403 Potassium, dissolved m /I 1.2 242 1.62 2.16 0.1 Selenium, dissolved m /I Selenium, total m /I Selenium, total recoverable m /I -0.001 -04001 -0.001 0.005 0.001 Sodium Absorption Ratio SAR calc. 1.19 1.61 1.41 1.791 talc Sodium, dissolved m /I 23.9 41 33.2 44.5 0.1 Sulfate m /I 10 60 44 48.98 2 TDS Ratio calc. 0.99 1.38 1.14 0.89 ca TDS Calc. m /I 138 234 205 265.33 TDS m /I 190 270 230 263 TSS m /I 2a 10 81 4 Zinc, dissolved mg/I -0.01 0.03 0.02 ' Baseline 2006 2 Enviro-Chem Analytical, Grand Junction, CO Zero values denote readings below lab detection levels (MDL). Average (mean) value calc using 1/2 of detection limit for readings below lab detection limits unless all readings are below lab detection limit: Enviro-Chem TDS Ratio calculation is [(TDS - TDS (Calc.)) / TDS)]' 100 West Elk Mine E-33 2008 Annual Hydrology Report HydroGeo, Inc.