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Spring JA <br />Water Gualiry and Pleld Parameters <br />• <br />• <br />C~ <br />Mountain Coal West Elk Mine <br />Monitoring Location S rin J-4 Baseline 2005 Water Ye ar <br />Descd lion Units Minimum Ma>amum Mean 5/1/2005 6/5/2005 10/2/2005 <br />Field Parameters <br />flow m 8.3 6.2 D.69 <br />Electfical COndUCtiVity µmhos/cm 340 460 392 604 699 641 <br />H SU 7.5 8.2 7.8 6.97 7.34 7.99 <br />Tem erature °C °C 6.7 14.2 8 <br />Tem relate °F °P 49.5 54.8 56.8 <br />Comment <br />Laborato Parameters <br />Name of Certified Lab ACZ <br />Lab Reference # L51525-oa <br />Sam le Date 6/5/2005 <br />Lab Test Date 6/8-6120 <br />Sam led B <br />Alkalinity (Total CaCOt) mgA 109 262 195 <br />Aluminum dissolved m 8 0.05 0.02 <br />Aluminum total m A 0.03 6.32 0.9 <br />Anions me A 4.5 4.7 4.6 <br />Arsenic tlissolved m A 0.001 0 <br />Arsenic total m fi <br />Bicarbonate m A 169 262 195 <br />Boron, dissolved m 8 <br />Cadmium dissolved m /I <br />Calcium total m A o.ooa D.oD1 <br />Calcium, tlissolved m A 34.2 54.4 43 <br />Carbonate m A <br />Cation -Anion Belance % 1.1 3.2 2.3 <br />Cations me 4.6 4.91 4.8 <br />Chionde m 3 1.9 <br />Conductivity µmh05/Cm 412 429 423 530 <br />Co er dissolved m /I o.01 0 <br />Hard0e65 m 4 125 191 156 <br />H droxide m /I <br />Iron tlissolved m o.as 0.02 O.o1 <br />Iron, total m A 0.03 6.75 0.62 0.76 <br />Lead dissolvetl m <br />Ma nesium, dissolved m A ss 13.4 tta <br />Man anese dissolved m A <br />Man anese total m fl 0.066 0.009 <br />Mercu total m A <br />Mal bdenum tlissolved m A <br />Nitrate as N m fi 0.02 0.37 0.14 <br />Nitrate/Nitrite as N m /l 0.05 0.37 0.13 <br />Nitrite as N m 8 0.03 D,003 <br />H SU 7.1 8.1 7.5 8.3 <br />Phos hate m <br />Phos horns Ortho ,dissolved m fl 0.025 0.005 <br />Potassium, d1a60Ned m fi 1.3 1.3 t.3 <br />Selenium dissolved m A <br />Selenium total m fl 0.002 0 <br />Selenium, total recoverable m A 0.001 0 <br />Sodium Absor lion Ratio SAR talc. 1.06 1.6 1.3 <br />SodlUm dissolved m 6 29.6 51.5 36.7 <br />Sulfate m 30 fi0 45 <br />TDS Ratio talc. <br />TDS Calc. m <br />TDS m 230 300 254 330 <br />TSS m 26 fi -5 <br />Zinc, dissolved m 0.01 0 <br />Zinc, total mg/l <br /> <br />ACZ Laborato , Steamboat S rin s, Colorado <br />Ne alive values denote readin s below lab detection levels <br />NA - not a livable NM -not measured NR -not re orted <br /> <br />E-28 <br />West Elk Mine <br />2005 Annual Hytlrology Repoli <br />HydroGeo, Inc <br />