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Well GP-7 <br />Water Quality and Field Parameters <br />• <br /> <br /> <br />Mountain Coal West Elk Mine <br />Monitoring Location Well GP-7 Baseline' 2009 Water Year <br />Description Units Minimum Maximum Mean 5/8/2009 5/24/2009 8/12/2009 <br />Field Parameters <br />Water Level Depth feet 52.7 52.9 55.9 <br />Electrical Conductivity mhos/cm 1608 1588 <br />H SU 7.21 7.03 <br />Temperature °C °C 10.9 10.9 <br /> <br /> <br />Comment Not enough <br />water for <br />sample <br />Laboratory Parameters <br />Name of Certified Lab z <br />Lab Reference # <br />Sample Date <br />Lab Test Date <br />Sampled B <br />Alkalinity (Total CaCO3) mg/I <br />Aluminum, dissolved m /I <br />Ammonia m /I <br />Anions me /I <br />Arsenic, dissolved m /I <br />Arsenic, total m /I <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 % <br />Cations me /I <br />Chloride m /I <br />Conductivity mhos/cm <br />Copper, dissolved m /I <br />Hardness m /I <br />Hydroxide m /I <br />Iron, dissolved m /I <br />Iron, total m /I <br />Lead, total m /I <br />Magnesium, dissolved m /I <br />Manganese, dissolved m /I <br />Manganese, total m /I <br />Mercury, total m /I <br />Molybdenum, dissolved m /I <br />Nitrate/Nitrite as N m /I <br />Nitrogen, ammonia m /I <br />H SU <br />Phosphate m /I <br />Phosphorus Ortho , dissolved m /I <br />Potassium, dissolved m /I <br />Selenium, dissolved m /I <br />Selenium, total m /I <br />Sodium Absorption Ratio SAR calc. <br />Sodium, dissolved m /I <br />Sulfate m /I <br />TDS Ratio calc. <br />TDS Calc. m /I <br />TDS m /I <br />TSS m /I <br />Zinc, dissolved mg/I <br />Baseline and WY 2000 data adapted from W WE (2001). <br />G-4 <br />West Elk Mine <br />2009 Annual Hydrology Report <br />HydroGeo, Inc.