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Well 96.27.1 <br />Water Quality and Field Parameters <br />• <br />I <br />• <br />G-17 <br />Mountain Coal West Elk Mine <br />Monitoring Location Well 98-27-t Baseline 2004 Water Vear <br />Desch lion Units Minimum Maximum Mean <br />Field Parameters <br />Water Level De th feet <br />EleClriC81 COndUClivity µmhOS/cm 2400 2800 25'10 <br />H SU 8.2 9.9 8.5 <br />Tem stature °C 18 19.2 17.9 <br />Comment Obstructed ObsWCled Obstructed <br />Laborato Parameter <br />Name of Cenified Lab <br />Lab Reference # <br />Sam le Date <br />Lab Test Date <br />Sam led B <br />Alkalinity (Total CaCO~) mg4 7370 1480 lado <br />Aluminum, dissolved m !I <br />Ammonia m /I 0.1 0.1 0.1 <br />Anions me li 26.6 27.8 27.1 <br />Arsenic, dissolved m /I a 0.001 o <br />Arsenic total m /I <br />BlCafbOnale m fl 1310 1470 1369 <br />Boron, dissolved m A <br />Cadmium, dissolved m a 0 0 d <br />Calcium, dissolved m ll 4.7 7.2 5.7 <br />Carbonate m 11 0 73 31 <br />Cation-Anion Balance % as 4.1 o.e <br />Cations me A 25.s 29.5 27.s <br />Chloride m ll t0 29 14 <br />Conductivity µmhos/Cm 2290 2350 2323 <br />Co er, dissolved m A <br />Hardness m fl 16 24 20 <br />H tlroxitle m A 0 0 0 <br />Iron, dissolved m fl 0 1.32 0.24 <br />Ifon, total m 11 0.91 2.54 1.81 <br />Lead, dissolved m A 0 0 0 <br />Ma nesium, dissolved m a 1 2.1 1.46 <br />Man anese, dissolved m ll 0 0.355 0.062 <br />Man anese. total m ll 0.031 0.059 0.0413 <br />Menu , dissolvetl m ll 0 0 0 <br />Mol bdenum, dissolved m /I <br />Nitrate/Nitrite as N m A o 0.38 0.05 <br />Nitro en, ammonia m A 0.84 1.06 0.95 <br />ry SU 6.9 8.4 7.9 <br />Phos hate m A D 0 0 <br />Phos hONS Ortho ,dissolved m /I 0 0.385 0.071 <br />Potassium, dissolved m /I 3.4 3.8 3.5 <br />Selenium. dissolved m /I o 0 0 <br />Selenium, total m /I <br />Sodlum Abso tion Ratio SAR talc. 58.5 67.3 63.7 <br />Sodium, dissolved m /I 571 s94 sag <br />Sulfate m fl 0 10 3 <br />TDS Ratio talc. <br />TDS Calc. m A <br />TDS /I 1090 1850 1487 <br />TSS m A ss 104 91 <br />Zinc, dissolved mg/I o 0.37 0.08 <br /> <br />ACZ Labs, Steamboat S tin s, Colorado <br />Ne adve values denote readin s below lab detection levels <br />NA - not a licable NM -not measured NR -not re orted <br /> <br />West Elk Mine <br />2004 Annual Hydrology Report HydroGeo, Ire. <br />