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Upper Sylvester Gulch <br />Surface Water Quality and Field Parameters <br />• <br /> <br />0 <br />Mountain Coal West Elk Mine <br />seline' 2007 Water Year <br />B <br />a <br />U. Sylvester Gulch Flume <br />monitoring Location <br />Units Minimum Maximum Mean 4/25/2007 5130/2007 8!2412007 <br />Description <br />Field Parameters <br />staff ua a/cfs <br />26 <br />0 <br />0.64 <br />0.45 <br />0.303 cfs <br />D <br />D <br />Flow . <br />Electrical Conductivity umhos/cm 300 380 340 326 <br />H SU 8.1 8.3 8.2 8.25 <br />Temperature °C °C 8.4 9.5 9.0 18.3 <br />Temperature °F OF 47.1 49.1 48.2 64.9 <br /> Site under <br /> const. <br />Comment <br />Laboratory Parameters 3 <br />Name of Certified Lab <br />Lab Reference # <br />Sample Date <br />Lab Test Date <br />Sam led B <br />Alkalinit (Total CaC03 <br />m /l <br />2121 <br /> <br />212 <br />212 <br /> <br /> <br />dissolved <br />Aluminum <br /> <br />m /I . <br />03 <br />0.03 <br /> <br />0.03 <br />.03 <br />0.03 <br />, <br />Anions me /I 5.1 5.1 5.1 <br />Arsenic, dissolved m /I <br />total <br />Arsenic m /I <br />, <br />Bicarbonate m /I 204 204 204 <br />dissolved <br />Boron m /l <br />, <br />dissolved <br />Cadmium m /I 0.003 0.003 0.003 <br />, <br />dissolved <br />Calcium m /I 35.1 35.1 35.1 <br />, <br />Carbonate m q/1 6 8 8 <br />Cation - Anion Balance % -4.1 -4.1 -4.1 <br />Cations me /l 4.7 4.7 4.7 <br />Chloride m /l 2 2 2 <br />Conductivit umhos/cm 462 462 462 <br />dissolved <br />Copper M CI/[ 0.01 0.01 0.01 <br />, <br />Hardness m /I 124 124 124 <br />Hydroxide m /I 2 2 2 <br />dissolved <br />Iron m /I 0.01 0.01 0.01 <br />, <br />total <br />Iron m /I 0.07 0.07 0.07 <br />, <br />Lead, dissolved m q/1 0.04 0.04 0.04 <br />Lead, total m /I <br />m /I <br />8.8 <br />8.8 <br />8.8 <br />Magnesium, dissolved m /I 0.005 0.005 0.005 <br />Manganese, dissolved m /I 005 0.005 0.005 <br />Man anese, total m /I 0.0002 0.0002 <br />Mercury, total m /I 0.01 0.01 <br />Mol bdenum, dissolved <br />Nitrate a N), dissolved m /I <br />Nitrate/Nit trite as N m /I <br />Nitrite as N), dissolved m /I P <br />H l <br />b SU <br />a <br />h <br />t m q/1 0.03 0.03 <br />Phosp <br />a <br />e <br />Phos horuS Ortho , dissolved m /l 0.005 0.005 <br />Potassium, dissolved 1.4 1.4 <br />dissolved <br />Selenium m /I <br />, <br />total <br />Selenium m /I 0.04 0.04 0.04 <br />, <br />Sodium Absorption Ratio SAR calc. 2.03 2.03 2.03 <br />dissolved <br />Sodium m /l 51.4 51.4 51.4 <br />, <br />f m /I 4 0 40 40 <br />Sul <br />ate <br />i calc. <br />o <br />TDS Rat <br />l <br />C m /I <br />c. <br />a <br />TDS <br />m /I 250 260 255 <br />TDS <br />m q/1 s 20 14 <br />TSS <br />Zinc, dissolved m /I 0.01 0.01 0.01 <br />'Baseline and WY 2000 data adapted from WWE (2001). <br />2 ACZ Laboratory, Steamboat Springs, CO <br />3 Negative values denote readings below lab detection levels <br />Welst Elk Mine <br />C-3 2007 Annual Hydrology Report HydroGeo, Inc