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Well GP-7 <br />Water Quality and Field Parameters <br />• <br />CJ <br /> <br />G•4 <br />Mountain Coal West Elk Mine <br />Monitodn Location Well GP-7 Basallne 20 04 Watar Year <br />DeSCri lion Units Minimum Maximum Mean 5/4/2004 5/27/2006 9/5/2004 <br />Field Paremetare <br />Water Level De th feet 50.75 50.81 55.9 <br />Electracal Conductivity µmh05/cm 1443 1553 1399 <br />H SU 8.72 6.69 6.83 <br />Tem reture °C 57.8 54.8 60.9 <br />Comment <br />Laboreto Paremetere <br />Name of Certified Lab <br />Lab Reference # <br />Sam le Date <br />Lab Test Date <br />Sam led B <br />Alkalinity (Total CaCO~) mgA <br />Aluminum, dissolved m A <br />Ammonia m A <br />Anions me <br />Arsenic, dissolved m <br />Arsenic, total m <br />Bicarbonate m <br />Boron, dissolved m <br />Cadmium, dissolved m <br />Calcium, dissolved m <br />Carbonate m <br />Cation -Anion Balance <br />Cations me <br />Chloride m A <br />Conductivity µmhos/cm <br />Co er, dissolved m A <br />Hardness m A <br />H droxide m A <br />Iron, dissolved m <br />Iron, total m <br />Lead, total m <br />Ma nesium, dissolved m <br />Man anese, dissolved m A <br />Man anese, total m A <br />Mercu ,total m A <br />Mol enum, dissolved m A <br />Nitrate/Nitrate as N m A <br />Nit an, ammonia m A <br />H SU <br />Phos hate m A <br />Phos horns Ortho ,dissolved m A <br />Potassium, dissolved m <br />Selenium, dissolved m A <br />Selenium, total m A <br />Sodium Abso flora Ratio SAR talc. <br />Sodium, dissolved m A <br />Sulfate m A <br />TDS Ratio talc. <br />TDS Calc. m A <br />TDS m A <br />TSS m A <br />Zinc, dissolved mgA <br /> <br />ACZ Labs, Steamboat S ran s, Colorado <br />N alive values denote readin s below lab detection levels <br />NA - not a livable NM -not measured NR -not re rted <br /> <br />West Elk Mine <br />2004 Annual Hydrology Repoli F/ydroGeo, Ine. <br />