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Well GP-4 <br />Water Quality and Field Parameters <br />• <br />~J <br />• <br />Mountain Coal West Elk Mine <br />Monitoring Location Well GP4 Baseline 200a Water year <br />Descri lion Units Minimum Maximum Mean 412512004 5/2712004 91512004 <br />Field Parameters <br />Water Level De th feet D D D <br />Electrical Conductivity µmhos/cm <br />H SU <br />Tem ersturs °C <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 />Alkalinity (Total CaCO~) mg/I <br />Aluminum, dissolved m /I <br />Anions me /I <br />Arsenic, total m /l <br />Bicarbonate m /I <br />Boron, dissolved m /I <br />Cadmium, dissolved m /I <br />Calcium, dissolved m /I <br />Carbonate m /I <br />Cation -Anion Balance m /I <br />Cations me ll <br />Chloride m /I <br />Conductivity µmhas/cm <br />Co er, dissolved m /I <br />Hardness m /I <br />H droxide m /I <br />Iron, dissolved m /I <br />Iron, total m /I <br />Lead, dissolved m /I <br />Ma nesium, dissolved m /I <br />Man anese, dissolved m /I <br />Man anese, total m /I <br />Mercu ,total m /I <br />Mol bdenum, dissolved m /I <br />Nitrate/Nitrite as N m /I <br />H SU <br />Phos hate m /I <br />Phos horns Ortho ,dissolved m A <br />Potassium, dissolved m ll <br />Selenium, total m /I <br />Sodium Abso tion Ratio SAR talc. <br />Sodium, dissolved m /l <br />Sulfate m /I <br />TDS Ratio talc. <br />TDS Calc. m ll <br />TDS m /I <br />TSS m /I <br />Zinc, dissolved mg/I <br /> <br />ACZ Labs, Steamboat S rin s, Colorado <br />Ne alive values denote readin s below lab detection levels <br />NA - not a livable NM -not measured NR -not re orted <br /> <br />West Elk Mlne <br />G-2 2004 Annual Hydrology Report HydroGeo, Inc. <br />