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Box Canyon <br />Surface Water Quality and Field Parameters <br /> <br /> <br /> <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 6l4/2005 9/20/2005 <br />Field Parameters' <br />Flow m D D D <br />Electrical Conductivi umhos/cm aa0 1020 Sts <br />H SU 7.9 8.9 8.3 <br />Tem erature C C 2 1ss 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 Tolal CaCO3 m /I 401 4a7 a26.75 <br />Aluminum, dissolved m /I <br />Aluminum, total m /I 0 0.07 0.025 <br />Anions me /I 10.3 12.1 11.1 <br />Arsenic, dissolved m /I 0 0 0 <br />Arsenic, total m /I 0 0.006 0.0012 <br />Bicarbonate m /I 398 447 425 <br />Boron, dissolved m /I <br />Cadmium, [oia! m /! 0 0.003 0.00075 <br />Calcium, dissolved m /I 40.2 67.9 57.sa75 <br />Carbonate m /I o 12 t.e75 <br />Cation -Anion Balance % -4 3.6 0.02 <br />Cations me /I 9.5 12.23 11.146 <br />Chloride m /I 2 6 4.875 <br />Conductivit umhos/cm asa 968 szta <br />Co er, dissolved m /I <br />Hardness m ll 195 283 255 <br />H droxide m /I 0 0 0 <br />Iron, dissolved m /I o 0.02 0.012 <br />Iron, total m /1 0.02 0.44 0.16 <br />Lead, dissolved m /I <br />Lead, total m /I <br />Ma nesium dissolved m /I 23 28 27 <br />Man anese, dissolved m /I <br />Man anese, total m /I o 0.009 0.002 <br />Mercu ,total m /I <br />Mol bdenum, dissolved m /I <br />Nitrate as N ,dissolved m /I 0.13 0.48 0.29625 <br />Nitrate/Nitrite as N m /I 0.13 0.48 0.30 <br />Nitrite as N ,dissolved m /I <br />H lab SU a a.2 E.7 <br />Phos hate m /I 0 o.o3 O.oos <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 0.007 0.002 0.002 <br />Selenium, total m /l 0 0.003 0.001 <br />Sodium Abso lion Ratio SAR talc. 3.43 4.2fi 3.91 <br />Sodium, dissolved m /I 127 154 tat <br />Sulfate m /I ioo 140 118 <br />TDS Ratio talc. <br />TDS Calc. m /I <br />TDS m /I 540 620 586 <br />TSS m ll 0 3a 19 <br />Zinc, dissolved mg/I o 0.07 O.ooz <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 />C-17 2005 Annual Hydrology Report HydroGeo, Inc. <br />