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Box Canyon <br />Surface Water Quality and Field Parameters <br /> <br /> <br /> <br />C-17 <br />Mountain Coal West Elk Mine <br />Monitoring Location Box Canyon Baseline 2005 Water Year <br />Descri lion Units Minimum Maximum Mean 5/2/2005 6/4/2005 9/20/2005 <br />Field Parameters' <br />Flow m D D D <br />Electrical COnductivit umhos/cm 640 1020 916 <br />H SU 7.9 8.9 8.3 <br />Tem erature C C z 75.9 to <br />Tem erature F F <br />Comment <br />Laborato Parameters <br />Name of Certified Lab <br />Lab Reference # <br />Sam le Date <br />Lab Test Date <br />Sam led B <br />Alkalini oral CaC03 m /l aot 4x7 x26.75 <br />Aluminum, dissolved m /I <br />Aluminum, total m /I 0 0.07 0.025 <br />Anions me /I 70.3 12.7 11.1 <br />Arsenic, dissolved m /I o 0 0 <br />Arsenic, total m /I o o.oos 0.0012 <br />Bicarbonate m /I 398 447 425 <br />Boron, dissolved m /I <br />Cadmium, total m /I o 0.003 0.00075 <br />Calcium, dissolved m /i ao.z 67.6 57.6875 <br />Carbonate m /I o t2 1.875 <br />L^.atlOn -Anion Balance % -0 3.6 0.02 <br />Cations me /I 9.5 12.23 71.146 <br />Chloride m /I 2 6 4.875 <br />Conduclivi umhoslcm 868 968 921.4 <br />Co er dissolved m /1 <br />Hardness m /I 795 283 255 <br />H droxide m /I 0 0 0 <br />iron, dissolved m !I o a.o2 O.Oi2 <br />Iron, total m /I 0.02 o.aa o.ts <br />Lead, dissolved m /I <br />Lead, total m /I <br />Ma ne6ium dissolved m /I 23 28 27 <br />Man anese, dissolved m /I <br />Man anese, total m /I o O.OOS 0.002 <br />Mercu ,total m /I <br />Mol bdenum, dissolved m /I <br />Nitrate as N ,dissolved m /I 0.73 0.48 0.29625 <br />Nitrate/Nitrite as N m /I 0.13 0.46 0.30 <br />Nitrite as N ,dissolved m R <br />H lab SU 8 a.2 a.t <br />PhoS hate m /I 0 0.03 0.006 <br />Phos horns Ortho ,dissolved m /I 0 0.007 0.002 <br />Potassium, dissolved m /I 2.6 3.3 3.0 <br />Selenium, dissolved m /I 0.001 0.002 0.002 <br />Selenium, total m /I o 0.003 0.007 <br />$edlUm Ab50 ti0n RabO $AR talc. 3.43 4.26 3.91 <br />Sodium, dissolved m /I 127 754 1x1 <br />Sulfate m /l too Tao tta <br />TDS Ratio talc. <br />TDS Calc. m /I <br />TDS m /I 540 620 586 <br />TSS m /I 0 38 79 <br />Zinc, disso ved mgll o o.ot 0.002 <br />'Baseline, WY 2000, and WY 2001 data ada ted from WWE. <br />ACZ -ACZ Laboratories, Inc., Steamboat S rin s, CO <br />Ne alive values denote readin s below lab detection levels <br />NM -Not Measured <br /> <br />West Elk Mine <br />2005 Annual Hydrology Report HydroGeo, Inc. <br />