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Middle Sylvester Gulch <br />Surface Water Quality and Field Parameters <br />• <br />• <br />• <br />Mountain Coal West Elk Mine <br />Monitoring Location M. Sylvester Gulch Flume Baseline' 2008 Water Year <br /> 6/6/2008 Enviro- <br />Descri tion Units Minimum Maximum Mean 5/9/2008 6/6/2008 (Duplicate) 8/5/2008 8/20/2008 Chem MDL <br />Field Parameters <br />Fl Staff Gauge 1.21 0.72 0.72 -- -- <br />ow <br />Electrical Conductivity umhos/cm 665 813 813 1243 985 <br />H SU 8.26 8.72 8.72 8.74 8.79 <br />Temperature C C 11.6 17.5 17.5 17.5 15.8 <br /> <br />Comment <br />Laboratory Parameters <br />Enviro-Chem <br />Enviro-Chem <br />Enviro-Chem <br />Enviro-Chem <br />Name of Certified Lab <br /> <br /> 08/920 08/928 08/1412 08/1511 <br />Lab Reference # 6/6/2008 6/6/2008 8/5/2008 8/20/2008 <br />Sample Date 6/9-7/30 619-7/30 8/5-9/22 8/22-9/22 <br />Lab Test Date P. Holder P. Holder P. Holder P. Holder <br />Sampled B m /I 321.94 318.77 349.68 390.2 2 <br />Alkalinity Total CaC03 0 <br />476 0 <br />502 0.388 0.041 0.01 <br />Aluminum, dissolved m g/1 . <br />872 <br />12 . <br />529 <br />12 11.261 12.84 calc <br />Anions me /I . . <br />Arsenic, dissolved m /I <br />0 <br />0018 <br />0 <br />002 <br />0.0026 <br />0.034 <br />0.001 <br />Arsenic, total Mal] . . <br />Bicarbonate M g/1 448 310 <br />0 <br />43 <br />0 <br />48 <br />0.4 <br />0.023 <br />0.01 <br />Boron, dissolved m /I . <br />007 <br />0 . <br />006 <br />0 0.001 0 0.001 <br />Cadmium, dissolved mail . <br />83 <br />86 . <br />78 <br />41 37.3 26.72 0.1 <br />Calcium, dissolved m /I . . <br />Carbonate m /I <br />48 <br />7 <br />50 <br />3 <br />-0.93 <br />•1.10 <br />talc <br />Cation - Anion Balance % . <br />696 <br />13 . <br />984 <br />12 <br />11.157 <br />12.7 <br />calc <br />Cations me /I <br />m /I 3 10 5 . <br />1.44 . <br />1.4 87.21 10.9 0.1 <br />Chloride m /I 0.002 0.003 0 0 0.005 <br />Chromium <br />Conductivity umhos/cm 480 800 606 758.1 734.67 1232.64 948.15 1 <br />dissolved <br />Copper m /I 0.027 0.024 0.009 0.007 0.002 <br />, <br />Cyanide, total m g/1 <br />159 <br />234 <br />194 0 <br />34842 <br />312 0 <br />288.03297 0 <br />223.6787 0 <br />201.29608 0.02 <br />calc <br />Hardness m /I . <br />Hydroxide m ./l <br />0 <br />4 <br />1 <br />0 <br />31 <br />0 <br />0.29 <br />0.087 <br />0.077 <br />0.01 <br />Iron, dissolved m /I . . . <br />0 <br />8 0 <br />83 0.333 0.117 0.01 <br />Iron, potentially dissolved m /l . <br />1 . <br />1 <br />1 0.381 0.152 0.01 <br />Iron, total recoverable m /I 05 <br />0 10 <br />5 2 <br />0 2.06 . <br />2.01 1.749 0.271 0.01 <br />Iron, total m /I . . . 0.03 0.027 0.006 0 0.005 <br />Lead, dissolved M g/1 <br />Lead, total m /I <br />25 <br />22 <br />4 <br />31.7 <br />32.68 <br />0.1 <br />Ma nesium, dissolved m /I <br />028 <br />0 . <br />027 <br />0 <br />0.004 <br />0.012 <br />0.005 <br />Manganese, dissolved m /I 0 <br />56 05 <br />0 . <br />0 <br />052 . <br />0.053 0.05 0.0274 0.005 <br />Manganese, total M CIA . . . <br />0 <br />00009 0 <br />00009 0.000042 0.00005 0.000025 <br />Mercury, total m /I <br />/I . <br />0.00408 . <br />0.00366 0.0056 0 0.01 <br />Molybdenum, dissolved m 03 <br />0 03 <br />0 0.058 0 0.01 <br />Nickel, dissoloved m /I . . <br />0 0 0 0 <br />13 <br />Nitrate as N, dissolved m /I 0 0 0 . <br />13 <br />0 <br />Nitrate/Nitrite as N M g/1 C.08 0.02 0 0 0 . <br />0 <br />01 <br />Nitrite as N), dissolved m /I 0.01 <br />8 <br />242 0.01 <br />263 <br />8 0.01 <br />81 <br />8 8.84 . <br />0.1 <br />H lab SU 7.35 8.70 8.08 . <br />11 <br />0 . <br />0 <br />1 . <br />0.06 0 0.01 <br />Phosphate <br />dissolved <br />Phosphorus Ortho m g/1 <br />m /I 0.875 0.110 . <br />0.02 . <br />0.02 0.053 0 0.01 <br />, <br />Potassium, dissolved m g/1 5.04 5.18 4.52 4.31 0.1 <br />Selenium, dissolved m /I <br />48 <br />0 <br />471 <br />0 <br />0.00085 <br />0.081 <br />0.001 <br />Selenium, total m g/1 . <br />0 <br />002 . <br />0 <br />002 0.011 0.001 0.00002 <br />Silver, total <br />Sodium Absorption Ratio SAR m /I <br />calc. 2.29 3.02 2.70 . <br />4.129 . <br />4.166 4.307 6.03 calc <br />dissolved <br />Sodium m /I 168.25 163 150.2 196.8 0.1 <br />2 <br />, <br />Sulfate m /I 28.2 80 46.1 91.79 89.73 107.02 91.38 <br /> calc 1536 10.51 5.81 6.15 calc <br />TDS Ratio . <br />m /I 701.39 682.94 770.47 753.58 2 <br />TDS Calc. m /I 3 <br />68 584 381 608 618 818 803 2 <br />TDS <br />TSS m /I . <br />4.2 5740 419 62 66 65 0 2 <br />Zinc, dissolved mg/I 0.017 0.019 0.009 0.014 0.005 <br />'Baseline and WY 2000 data adapted from WWE (2001). <br />x Enviro-Chem Analytical, Grand Junction, CO <br />3Zero values denote readings below lab detection levels (MDL). <br />s Enviro-Chem TDS Ratio calculation is (TDS - TDS (Calc.)) / TDS)] ` 100 <br />C-4 <br />West Elk Mine <br />2008 Annual Hydrology Report <br />HydroGeo, Inc.