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Well 96-2.2 <br />Water Quality and Field Parameten <br />• <br />C <br /> <br />G-16 <br />Mountain Coal West Elk Mlne <br />Monitodn Location We1196.2-2 Baseline 2004 Water Year <br />Descri lion Uni1S Minimum Maximum Mean 5/8/2004 6!312004 9/28/2004 <br />Field Parameters <br />Water Level De lh feel 718.11 71219 719.85 <br />Electrical COndUCtivity µmhOS/Cm 3300 4200 3700 5000 4820 4770 <br />H SU 9.2 10 9.6 6.29 8.29 8.14 <br />Tem erature °C 13.6 16.4 14.7 58.3 82.5 59.0 <br />Comment <br />Laborato Parameters <br />Name of Certified Lab ACZ <br />Lab Reference # La6o18-02 <br />Sam le Dale 9/28/2004 <br />Lab Test Date 9/28-10/15 <br />Sam led B <br />Alkalinity (Total CaCO~) mgA 7810 2520 2052 <br />Aluminum, dissolved m A <br />Ammonia m I 0.58 0.58 0.5fi <br />Anions me A <br />Arsenic, dissolved m /I 0 0.001 0 <br />Arsenic, total m A <br />Bicarbonate m fl 1070 2450 1538 <br />Boron, dissolved m /l <br />Cadmium, dissolved m A o 0 0 <br />Calcium, dissolved m ll fi.s t.a 1.1 <br />Carbonate m fl 72 800 520 <br />Cation -Anion Balance % -2 0.1 -0.7 <br />Cations me A 37.8 49.3 a3.a <br />Chloride m A 28 48 40 <br />COnductivl µmh03/Cm 3460 4340 3730 4110 <br />Co er, tlissoNetl m tl <br />Hardness m A 2 e 4 <br />H roxide m /I o 0 0 <br />Iron, dissolved m fl 0 0.06 0.03 0.72 <br />Iron, total m /I 5.38 27.1 12.39 2.17 <br />Lead, dissolved m A 0 0 0 <br />Ma nesiUm, tl15501vetl m /I 0 1.1 0.33 <br />Man anese, dissolvetl m ll 0 0.025 0.008 <br />Man anese, total m !I 0.098 0.32 0.208 <br />Mercu ,dissolved m 11 0 0.0061 0.001 <br />Mol bdenum, tlissolvetl m /I <br />Nitrate/Nitrite as N m A <br />Nitro en, ammonia m /I 0.93 1.26 1.09 <br />H SU 8.5 9.8 9 8.4 <br />Phos ate !I 0.1 0.1 0.1 <br />Phos horns Ortho , dissolved m A 0 0.033 0.007 <br />Potassium, dissolved m A 8.1 6.3 8.2 <br />Selenium, dissolved m /I o 0 0 <br />Selenium, total m R <br />Sodium A65o lion Ratio SAR talc. 173 265 214 <br />Sodium, dissolved m /I 838 1110 914 <br />Sulfate m /I o 20 7 <br />TDS Ratio talc. <br />TDS Calc. m /I <br />TDS m /I 1270 2830 2094 2910 <br />TSS m 11 14 44 29 <br />Zinc, dissolved m 11 0 0.02 0 <br /> <br />ACZ Labs, Steamboat S rin s, Colorado <br />Ne alive values denote readin s below lab tletection levels <br />NA - not a livable NM -not measured NR -not re oried <br /> <br />West Elk Mine <br />2004 Annual Hytlrology Report HydroGeo, Inc. <br />