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Upper Deep Creek Surface Water Quality and Field Parameters L J 1r1 u r, ~J Mountain Coal West Elk Mine Monitorin Location U. Deep Creek Baseline 2003 Water Year Descri lion Units Minimum Maximum Mean 4/13/03 6/4/03 9/27/03 Field Parameters Flow cfs 0.83 0.92 NM Electrical Conductivi umhos/cm 80 310 192 298 141 376 H SU 8.1 8.8 8.5 8.14 7.81 7.94 Tem erature oC 0.2 18.6 10 37.4 43.5 41.5 Comment La6orato Parameters Name of Certified Lab ACZ Lab Reference # L41507-02 Sam le Date 6/4/2003 Lab Test Date 6/5-6/16 Sam led B Alkalini otal CaCO3 m /I 160 103 49 Aluminum, dissolved m /I 0.78 Anions me /I 1.5 2.6 2.05 1.2 Arsenic, total m /I -0.0005 Bicarbonate m /I 53 153 106 49 Boron, dissolved m /I -0.01 Cadmium, dissolved m /I -0.005 Calcium, dissolved m /I 14 44.4 28.7 13 Carbonate m /I 9 1.3 -2 Cation -Anion Balance m /I -3.4 -2 -2.7 0 Cations me If 1.4 2.5 1.95 1.2 Chloride m 4 2 0.23 -1 Conductivi umhos/cm 139 242 190.5 97 Co er, dissolved m /I -0.01 Hardness m /I 47 138 91 42 H droxide m /I -2 Iron, dissolved m /I 0.02 0.04 0 0.4 Iron, total m /I 0.14 9.43 2.63 2.09 Lead, dissolved m /1 0.0002 Ma nesium, dissolved m /I 2.6 6.6 4.62 2.4 Man anese, dissolved m /I 0.007 0.0035 -0.005 Man anese, total m /I 0.005 0.282 0 0.054 Mercu ,total m /I •0.0002 Mol bdenum, dissolved m /I -0.01 Nitrate as N, dissolved m /I 0.13 Nitrate/Nitrite as N m /I 0.05 0.01 0.13 Nitrite as N, dissolved m /I -0.07 H SU 6.9 8.00 7.45 7.5 Phos hate m /I O.t2 0.2 0.16 Phos horns Ortho ,dissolved m /I 0.065 0.013 0.02 Potassium, dissolved m /I 0.7 1.2 0.95 0.6 Selenium, total m /I -0.001 Sodium Absor tion Ratio SAR talc. 0.32 0.77 0.6 0.39 Sodium, dissolved m /I 7.9 20 13.8 5.8 Sulfate m /I 30 10.8 10 TDS Ratio talc. 0.95 TDS Calc. m /I s3 TDS m /I 60 210 133 60 TSS m /I 64 Zinc, dissolved m /I -0.01 ACZ Labs, Steamboat S do s, Colorado ' Standard is for reference ur oses onl NA - not a livable NM -not measured NR -not re rted West Elk Mine C-16 2003 Annual Hydrology Report HydioGeo, Inc.