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Middle Sylvester Gulch <br />Surface Water Quality and Field Parameters <br />• <br />• <br />C7 <br />Mountain Coal West Elk Mine <br />' <br />2007 Water Year <br />Monitoring Location M. Sylvester Gulch Flume Baseline <br /> 8/22/07 <br /> Units Minimum Maximum Mean 4/26/2007 5/24/2007 Q ° 8/22/2007 Q 4 (Duplicate) Q' 10/16/2007 Q <br />Description <br />Field Parameters <br />0 <br />74 <br />0 <br />69 <br />0.64 <br />0.64 <br />0.62 <br />Flow Staff Gauge . <br />1734 . <br />1285 3830 3830 4100 <br />Electrical Conductivity umhos/cm 8 <br />95 8 <br />43 8.68 8.66 8.64 <br />H SU <br />C . <br />16.4 . <br />10.7 14.0 9.9 <br />Temperature C F 61.5 51.3 57.2 57.2 49.8 <br />Temperature F <br /> P Retest <br />Comment <br />Laborato Parmeters <br />ACZ <br />ACZ <br />AC <br />Name of Ceified Lab <br /> L62832-03 L64626-06 L65714-04 <br />Lab Reference # <br />5124/2007 <br />8122/2007 <br />8/22Y2007 <br />10/16/2007 <br />Sample Date <br />5/25-6/12 <br />8/24-9113 <br />8/24-9/13 <br />10/17-1117 <br />Lab Test Date <br />Sam led B 469 1860 1810 1960 <br />Alkalinit Total CaC03 m /I <br />03 <br />0 <br />B <br />-0.06 <br />U <br />-0.06 <br />U <br />0.09 <br />B <br />Aluminum, dissolved m /I . <br />12 <br />6 1 <br />43 42.1 46.3 <br />A <br />i me /I . . <br />n <br />ons <br />Arsenic, dissolved m n <br />- <br />0007 <br />0 <br />B <br />0.004 <br />0.004 <br />0.003 <br />Arsenic, total m /l 448 310 . <br />416 1460 1450 1600 <br />Bicarbonate m /I 0 <br />31 2.19 2.16 2.31 <br />Boron, dissolved m /I . <br />005 <br />-0 U -0.01 U -0.01 U -0.01 U <br />Cadmium, dissolved m /I . <br />28 <br />9 9.8 9.6 12.1 <br />Calcium dissolved m /I . <br />52 397 358 361 <br />Carbonate m /I 4 <br />5 -1.2 -1.4 2.5 <br />Cation - Anion Balance % . <br />13 <br />8 42.1 40.9 48.7 <br />Cations me /I 5 . <br />42 160 160 200 <br />Chloride m /I 3 10 01 <br />-0 U -0.02 U -0.02 U -0.02 U <br />Chromium m /I <br />606 . <br />1140 <br />3860 <br />3760 <br />4040 <br />Conductivity umhos/cm 480 600 01 <br />-0 U -0.02 U -0.02 U -0.02 U <br />Copper, dissolved m /I . <br />005 <br />-0 U -0.005 U,H -0.005 U,H -0.005 U <br />Cyanide, total m /I 194 . <br />159 50 50 50 <br />Hardness m /I 159 234 -2 U -2 u -2 u 2 u <br />Hydroxide m /l 1 <br />0 0 <br />06 0.09 B 0.08 B 0.23 <br />Iran, dissolved m /I 0.4 . <br />2 <br />0 . <br />71 <br />0 1.77 1.68 6.46 <br />Iron, total m /I 0.05 10.5 . . <br />0004 <br />0 B 0.0044 0.0044 0.0048 <br />d <br />l <br />d <br />di m /l . <br />sso <br />ve <br />, <br />Lea <br />Lead, total m /I <br />21 <br />0 <br />6.3 <br />6.3 <br />4.9 <br />Magnesium, dissolved m /I . <br />010 B <br />0 0.02 B 0.01 B 0.04 B <br />Manganese, dissolved m /I 56 <br />0 05 <br />0 . <br />0.025 6 0.05 0.05 B 0.13 <br />Manganese, total m /I . . 0002 U <br />-0 0.0003 B -0.0002 U -000002 U <br />Mercury, total m /l . <br />01 u <br />0 -0.02 U -0.02 U -0.02 U <br />Mot bdenum, dissolved m /I . <br />01 U <br />-0 0.06 - B 0.06 B 0.08 B <br />Nickel, dissoloved m /I . <br />06 B <br />0 0 <br />.15 <br />0.18 <br />0.16 <br />Nitrate as N), dissolved m /I 08 <br />0 02 <br />0 . <br />0.07 B 0.24 H 0.23 H 0.21 <br />Nitrate/Nitrite as N m /I . . 01 B <br />0 0.09 H 0.09 H 0.05 <br />Nitrite as N), dissolved m /I . <br />7 H <br />8 9 <br />2 H 9.1 H 9.1 H <br />H lab SU 7.35 8.70 8.08 . <br />06 B <br />0 . <br />0.24 024 021 <br />Phosphate m /I 875 <br />0 110 <br />0 . <br />0.02 B 0.08 H 0.08 H 0.07 <br />Phos hares Ortho , dissolved m /I . . 3 <br />3 5.4 4.8 5.5 <br />Potassium, dissolved m /I . <br />Selenium, dissolved m /I <br />0006 <br />0 <br />0.0005 <br />B <br />0.0014 <br />0.0003 <br />B <br />Selenium, total m g/1 . <br />00005 U <br />-0 -0.0001 U -0.0001 U -040001 U <br />Silver, total m /I <br />talc 2.29 3.02 2.70 . <br />8.39 57.70 56.30 67.00 <br />Sodium Abso lion Ratio SAR . 240 931 904 1080 <br />Sodium, dissolved m /I 28 <br />2 80 46.1 100 70 70 70 <br />Sulfate m /I . 00 <br />1 0.96 0.98 0.94 <br />TDS Ratio ?1 . <br />737 2460 2380 2690 <br /> <br />TDS Calc. / <br />m /I <br />m /I <br /> <br />3.68 <br /> <br />584 <br /> <br />381 <br /> <br />740 <br /> <br />2350 <br /> <br />2340 <br /> <br />75 <br />0 <br /> <br />H <br />TDS m /I 4.2 5740 419 14 B 36 4 <br />2 <br />U <br />TSS 01 B <br />0 -0.12 U -0.02 U -0.0 <br />Zinc, dissolved m /I . <br />' Baseline and wY 2000 data adapted from W WE (2001). <br />' ACZ Laboratory, Steamboat Springs, CO <br />' Negative values denote readings below lab detection levels <br />ACZ Lab Qualifiers: U - Analyte was analyzed for but not detected at the indicated MDL <br />H - Holding time exceeded; pH is a field test with an immediate hold time. <br />...... -' -- <br />-.:__, _.._...:...c..., r <br />...a rani ? <br />B - Analyte cone aetectec at a vaiua u- ?????? ??? ? ••?-r - - ------ -•- - <br />West Elk Mine <br />C-4 2007 Annual Hydrology Report <br />HydroGeo, Inc.