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SpNng G-16 <br />Water quality and Field Parameters <br />J <br />• <br />• <br />Mountain Coal West Elk Mine <br />Monitoring Location Sprin G-76 Baseline 2005 Water Vear <br />Descri lion Units Minimum Maximum Mean 5/2/2005 6/4/2005 9/20/2005 <br />Field Parameters <br />Flow 4.29 t.6fi 1.0 <br />Electrical Conductivity µmhos/cm 575 717 ss3 <br />H $U 7.42 7.69 7.48 <br />Tem erature °C °C <br />Tem erature °F °F as as.s 49.2 <br />Comment <br />Laborato Parameters <br />Name of Certified Lab ACZ <br />Lab Reference # L51ass-oa <br />Sam le Date sra/zoos <br />Lab Test Date sls-7/1 <br />Sam led B <br />Alkalinity (Total CaC03) mgA <br />Aluminum, dissolved m A <br />Anions me A <br />Arsenic, dissolved m /I <br />Arsenic, total m !I <br />Bicarbonate m /I 241 441 307 <br />Boron, dissolved m /I <br />Cadmium, dissolved m A <br />Calcium, dissolved m A 55.2 ss.s 55.s <br />Carbonate m A <br />Cation -Anion Balance m A <br />Cations me /I <br />Chloride m /I z 12 5 <br />Conductivity µmh05/Cnl 529 1120 691 556 <br />Co er, dissolved m A <br />Hardness m /I 160 453 220 <br />H drozide ~ m P <br />Iron, dissolved m /I 0.08 0.01 -0.01 <br />Iron, total m /I 4.83 0.58 0.17 <br />Lead, dissolved m /I <br />Ma nesium, dissolved m ~ 15.1 15.s 15.3 <br />Man anese, dissolved m /I <br />Man anese, total m /I 0.07 0.01 <br />Mercu ,total m /I <br />Mol bdenum, dissolved m /I <br />Nitrate as N ,dissolved m !1 <br />Nitrate/Nitrite as N m /l 0.07 0.'16 0.1 <br />Nitrite as N dissolved m /I <br />H SU 7.1 6.2 7.7 8.4 <br />Phos hate m /I <br />Phos horns Ortho ,dissolved m /I o.19 o.oa <br />Potassium, dissolved m /I <br />Selenium, total m /I <br />Sodium Abso lion Ratio SAR talc. t.a z t.s <br />Sodium dissolved m /I 5a.1 s4.5 s1.3 <br />Sulfate m /I 18.2 200 51.6 <br />TDS Ratio talc. <br />TDS Calc. m fl <br />TDS m /I 274 700 349 330 <br />TSS m /I 194 z1 s <br />Zinc, dissolved m /I <br /> <br />ACZ Laborato , Steamboat S rin s, Colorado <br />Ne alive 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 />E-10 2005 Annual Hydrology Report HydroGeo, Inc. <br />