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Well 96-2-2 <br />Water Quality and Field Parameters <br />C J <br />• <br />C~ <br />Mountain Coal West Elk Mine <br />Monitoring Location Well 96-2-2 Baseline 2003 Water Year <br />Descri ti0n Units Minimum Maximum Mean 4/14/2003 6/6/2003 9/28/2003 <br />Field Parameters <br />Water Level De th feet 713.06 717.02 716.52 <br />Electrical Conductlvi umhos/Cm 3300 4200 3700 4510 4610 4380 <br />H SU 9.2 10 9.6 8.2 8.18 8.3 <br />Tem erature oC 13.8 16.4 14.7 60.7 59.9 63 <br />Comment <br />Laborato Parameters <br />Name of Certified Lab ACZ <br />Lab Reference # L43143-04 <br />Sam le Date 9/28/2003 <br />Lab Test Date 9/30-10/21 <br />Sam led B <br />Alkalini Total CaCO3 m /I 1610 2520 2052 2590 <br />Aluminum, dissolved m /I <br />Ammonia m /l 0.56 0.56 0.56 <br />Anions me /I 52.6 <br />Arsenic, dissolved m /I o 0.001 0 -0.0005 <br />Arsenic, total m /I <br />BlCarbonate m /I 1070 2450 1536 2550 <br />Boron, dissolved m /I <br />Cadmium, dissolved m /I o 0 0 -0.01 <br />Calcium, dissolved m /I 0.8 1.4 1.1 2.1 <br />Carbonate m /I 72 800 520 46 <br />Cation -Anion Balance % -2 0.1 -0.7 6.2 <br />Cations me /I 37.8 49.3 43.4 59.5 <br />Chloride m /I 28 48 40 24 <br />COnductivi Umhos/cm 3460 4340 3730 3670 <br />Co er, dissolved m /I <br />Hardness m /I 2 8 4 12 <br />H droxide m /I 0 0 0 -2 <br />Iron, dissolved m /I 0 0.06 0.03 0.33 <br />Iron, total m !I 5.36 21.1 12.39 t.45 <br />Lead, dissolved m /I 0 0 0 -0.06 <br />Ma nesium, dissolved m A 0 1.1 0.33 1.7 <br />Man anese, dissolved m /I 0 0.025 0.006 0.02 <br />Man anese, total m /I 0.098 0.32 0.206 0.02 <br />Mercu ,dissolved m /I 0 0.0061 0.001 -0.0002 <br />Mol bdenum, dissolved m /I <br />Nitrate/Nitrite as N m /I 2.67 <br />Nlfro en, ammonia m / 0.93 1.26 1.09 1.22 <br />H SU 8.5 9.6 9 6.4 <br />Phos hate m /I 0.1 0.1 0.1 0.3a <br />Phos horns Ortho ,dissolved m /I 0 0.033 0.007 0.11 <br />Potassium, dissolved m 8 6.1 6.3 6.2 7 <br />Selenium, dissolved m /I 0 0 0 -0.001 <br />Selenium, total m /1 <br />Sodium Absor lion Ratio SAR talc. 173 265 214 169 <br />Sodium, dissolved m /I 836 1110 914 1340 <br />Sulfate m !I 0 20 7 -10 <br />TDS Ratio talc. <br />TDS Calc. m /I <br />TDS m /I 1270 2830 2094 2860 <br />TSS m /I 14 44 29 <br />Zinc, dissolved m /I 0 0.02 0 0.07 <br /> <br />ACZ -ACZ Labs, Steamboat S rin s, Colorado <br />' Standard is for reference ur oses onl <br />NA - not a livable NM -not measured NR -not re orted <br /> <br />West Elk Mine <br />G-14 2003 Annual Hydrology Report HydroGeo, Inc- <br />