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Upper Sylvester Gulch <br />Surface Water Quality and Field Parameters <br /> <br />• <br /> <br />C-3 <br />Mountain Coal Wesl Elk Mine <br />Monitorin Location U. Sylvester Gulch Flume Baseline 2005 Water Year <br />DesCri lion Units Minimum Maximum Mean 513/2005 6/4/2005 9/20/2005 <br />Fieltl Parameters <br />Flow stall Ua a 0.26 0.64 0.45 D No flow D <br />Elegrical Conducfivi umhos/cm 300 380 340 <br />H SU 8.1 8.3 6.2 <br />Tem eraWre (°C) °C 84 9.5 9 <br />Tem erature °F °F <br />Comment <br />Laborato Parameters' <br />Name of Certified Lab <br />Lab Reference # <br />Sam le Date <br />Lab Test Date <br />Sam led B <br />Alkalini Total CaCO3 m /I 212 212 212 <br />Aluminum, dissolved m A 0.03 0.03 0.03 <br />Anions me A 5.1 5.1 5.1 <br />Arsenic, dissolved m ll <br />Arsenic, total m A <br />Bicarbonate m fi 204 zoa zoa <br />Boron, dissolved m /I <br />Cadmium, dissolved m fi 0.003 0.003 0.003 <br />Calcium, dis501ved m /I 35.1 35.1 35.1 <br />Carbonate m l 8 8 8 <br />Cation -Anion Balance % -4.1 -a.1 -4.1 <br />Cations me I a.7 4.7 a.7 <br />Chloride m fi 2 2 2 <br />Conducfivi umhos/cm 462 462 462 <br />Co er, dissolved m /I 0.01 0.01 0.01 <br />Hardness m /I 120 124 124 <br />H droxide ~ m /I 2 2 2 <br />Iron, dissolved m /1 ~ 0.01 0.01 0.01 <br />Iron, total m /l 0.07 0.07 0.07 <br />Lead, dissolved m /I 0.04 0.04 0.04 <br />Lead, total m ll <br />Ma nesium, dissolved m R 8.a 8.8 s.a <br />Man anese, dissolved m A 0.005 0.005 0.005 <br />Man anese, total m A 0.005 0.005 0.005 <br />Mercu ,total m /I 0.0002 0.0002 0.0002 <br />Mol denum, dissolved m /l 0.01 0.01 o.ot <br />Nitrate as N ,dissolved m /l <br />Nitrate/Nitrite as N m !I <br />Nitrite as N ,dissolved m fi <br />H ab SU <br />Phos hate m A 0.03 0.03 0.03 <br />Phos horns Ortho ,dissolved m h 0.005 0.005 0.005 <br />Potassium, tlissolved m /l 1.4 1.4 1.4 <br />Selenium, dissolved m 0 <br />Selenium, total m /I 0.04 0.04 0.04 <br />Sodium Absor lion Ratio SAR talc. 2.03 2.03 2.03 <br />Sodium, diSSOlvetl m /I 51.4 51.4 51.4 <br />Sulfate m /l 4o ao ao <br />TDS Ratio talc. <br />TDS Calc. m fi <br />TDS m /I 250 260 255 <br />TSS m fi 8 20 to <br />Zinc, tlissolved mg/l 0.01 0.01 0.01 <br />'Baseline, WY 2000, and WY 2001 data atla led from WWE. <br />ACZ -ACZ Laboratories, Inc., Steamboat S rin s, CO <br />Ne alive values denote reatlin s below lab detection levels <br />NM -Not Measured <br />Welst Elk Mfne <br />2005 Annual Hydrology Report HydroGeo, Inc. <br />