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Lower Gibble Gulch <br />Surface Water Gtuality and Field Parameters <br />• <br />LJ <br />• <br />Mountain Coal West Elk Mine <br />Monitoring Location L. Gribble Gulch Baseline 2003 Water Year <br />Descri lion Units Minimum Maximum Mean 4/13/2003 6/2/2003 9/23/2003 <br />Field Parameters <br />Flow m D 0.48 D <br />Electrical Conductivi umhos/cm 883 <br />H SU 7.45 <br />Tem erature oC 68.1 <br />Laborato Parameters <br />Name of Certified Lab ACz <br />Lab Reference # L41471-04 <br />Sam le Date 6/2/2003 <br />Lab Test Date 6/4-6/16 <br />Sam led B <br />Alkalinit Total CaCO3 m /I 367 <br />Aluminum, dissolved m /I 0.05 <br />Anions me /I 10.2 <br />Arsenic, dissolved m /I <br />Arsenic, total m /I 0.0008 <br />Bicarbonate m /I 304 477 353 362 <br />Boron, dissolved m /I 0.07 <br />Cadmium, dissolved m /I -0.005 <br />Calcium, dissolved m A 83.6 <br />Carbonate m /I 4 <br />Cation -Anion Balance m /I -2.5 <br />Cations me /I 9.7 <br />Chloride m /I 3 5 4 5 <br />Conductivi umhos/cm 1250 1250 1250 860 <br />Co er, dissolved m /I -0.01 <br />Hardness m /I 308 460 371 375 <br />H droxide m /I -2 <br />Iron, dissolved m /I 0.01 <br />Iron, total m /I 0.89 0.44 3.98 <br />Lead, dissolved m /I 0.0001 <br />Ma nesium, dissolved m /I 32 39.7 35.9 40.4 <br />Man anese, dissolved m /I -0.005 <br />Man anese, total m /I 0.015 0.008 0.05 <br />Mercu ,total m /I -0.0002 <br />Mol bdenum, dissolved m /I -O.Ot <br />Nitrate as N m /I 0.2 <br />Nitrate/Nitrite as N m fl 0.05 0.35 0.75 0.22 <br />Nitrite as N m !I 0.02 <br />H SU 7.2 7.2 7.2 8.5 <br />Phos hate m /I 0.18 <br />Phos horns Ortho ,dissolved m /I 0.006 0.002 0.06 <br />Potassium, dissolved m /I 3.4 <br />Selenium, total m /I 0.001 <br />Sodium Absor tion Ratio SAR talc. 0.86 2.5 1.5 1.13 <br />Sodium, dissolved m /I 80 260 135 49.9 <br />Sulfate m /I 400 780 590 130 <br />TDS Ratio talc. 1.03 <br />TDS Calc. m /I 535 <br />TDS m /I 24 60 42 550 <br />TSS m /I 78 <br />Zinc, dissolved m /I -0.01 <br /> <br />ACZ Labs, Steamboat S rin s, Colorado <br />' Standard is for reference ur ses onl <br />NA - not a livable NM -not measured NR -not re orted <br /> <br />West Elk Mine <br />C-12 2003 Annual Hydrology Report HydroGeo, Inc. <br />