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Upper North Fork (USGS) <br />Surface Water Quality and Field Parameters <br />• <br />• <br />• <br />Mountain Coal West Elk Mine <br />B <br />eline . <br />2 .Water <br />007 Yea r <br />Monitoring Location N. Fork Upper USGS as <br /> <br /> Units Minimum Maximum Mean 4/26/2007 5/24/2007 Q 4 8/22/2007 Q 4 10/16/2007 Q ° <br />Descri tion <br />Field Parameters <br />90 <br />2 <br />3.50 <br />2.35 2.04 <br />Flow staff gauge . <br />163 <br />137 <br />201 189 <br />Electrical Conductivity umhos/cm <br /> <br />80 <br />7 <br /> <br />32 <br />8 <br /> <br />7 <br />80 <br />.22 <br />8.22 <br /> SU . . . <br />H <br />° °C 9.3 7.5 15.4 4.3 <br />C <br />Temperature <br />° °F 48.7 45.5 59.7 39.7 <br />F <br />Tem erature <br />Comment Retest <br />Laboratory Parameters 3 <br />ACZ <br />ACZ <br />ACZ <br />Name of Certified Lab L62832-02 L64626-03 L65714-02 <br />Lab Reference # <br />5/2472007 <br />8/22/2007 <br />10/16/2007 <br />Sample Date <br />5/25-6/12 <br />8/24-9/13 <br />10/17-11/7 <br />Lab Test Date <br />Sam led B 48 102 78 <br />Alkalini Total CaC03 m /i <br />3 <br />B <br />-0.03 j <br />-0.03 <br />U <br />Aluminum dissolved m /I 9 <br />0 2.0 1.6 <br />Anions me /I . <br />Arsenic dissolved m /I <br />m /I <br />0.001 <br />0.001 <br />0.001 <br />-0.0005 <br />U <br />0.0006 <br />-0.0005 <br />U <br />Arsenic total m /l 40.9 167 81.3 46 97 76 <br />Bicarbonate 01 <br />-0 U 0.01 B o.01 B <br />Boron dissolved m /I . <br />005 <br />0 <br />U <br />0.005 <br />U <br />0.005 <br />U <br />Cadmium dissolved m /I . <br />15 <br />2 <br />26.8 <br />21.6 <br />Calcium dissolved m q/1 . <br />-2 U 5 B 2 B <br />Carbonate m /I 0 <br />10 2.4 5.9 <br />Cation - Anion Balance % . <br />1 <br />1 <br />2.1 <br />1.8 <br />Cations me /1 10 3 . <br />1 U 1 B 2 B <br />Chloride m /l -0 <br />01 U -0.01 U -0.01 U <br />Chromium total m /I <br />76 <br />241 69 <br />1 . <br />106 <br />204 <br />165 <br />Conductivity umhos/cm <br />m /I 0.01 0.01 01 <br />0.01 0.01 U -0.01 U -0.01 U <br />Copper, dissolved 005 <br />-0 U -0.005 U H -04005 U <br />Cyanide, total m 11 <br />m /I <br />40 <br />107 <br />70 . <br />48 <br />86 <br />69 <br />Hardness 2 U 2 U 2 U <br />Hydroxide m 11 <br />m /l <br />0.38 <br />0.09 <br />0.04 <br />B <br />-0.02 <br />U <br />0.03 <br />B <br />Iron dissolved <br />m /I <br />26.3 <br />1.6 <br />1.09 <br />0.88 <br />0.31 <br />Iron total /I 0.02 0.01 0.0001 B -0.0001 U -0.0001 U <br />Lead dissolved m <br />Lead total m /I <br />2 <br />4 <br />3 <br />2 <br />9 <br />2.5 <br />4.5 <br />3.6 <br />Ma nesium dissolved m /I . <br />009 <br />0 . <br />006 <br />0 -0.005 U 0.005 U 0.005 U <br />Manganese, dissolved m /l . <br />19 <br />0 . <br />04 <br />0 0.022 B 0.033 0.014 B <br />Manganese, total mg/1 . . 0002 <br />-0 U -0.0002 U -0.0002 U <br />Mercury. total m /I . <br />01 <br />-0 U -0.01 U -0.01 U <br />Molybdenum, dissolved m /I . <br />0 <br />01 <br />U <br />.01 <br />-0 <br />U <br />0.01 <br />U <br />Nickel dissolved m q/1 . <br />05 <br />0 B 0.02 U 0.07 B <br />Nitrate as N dissolved m /I 19 <br />0 0 <br />06 . <br />0.06 B -0.02 U H 0.07 B <br />Nitrate/Nitrite as N m /I . . 01 <br />0 B 0.01 U H -O.o1 U <br />Nitrite as N dissolved m /l 8 <br />7 4 <br />1 <br />8 H 8.4 H 8.4 H <br />H (lab). SU 6.7 9 . . <br />06 <br />0 B 0.58 0.06 B <br />Phosphate m /I <br />m <br />/1 1.61 0'12 . <br />0.02 B 019 H 002 B <br />Phosphorus Ortho dissolved q 0.5 a 1.1 B o.9 B <br />Potassium dissolved m /i <br />Selenium dissolved m /I <br />0001 <br />0 <br />B 0.0003 B <br />0.0001 <br />B <br />Selenium total m li . <br />00005 <br />-0 <br />U -0.00005 U <br />-0.00005 U <br />, total <br />Silver. m /I <br />talc 0.2 1.62 0.5 . <br />0.27 0.40 0.51 <br />Sodium Absorption Ratio SAR . 5 <br />7 4 <br />6 4.3 8.5 9.7 <br />Sodium, dissolved m /I . <br />. <br />3.4 <br />10 -10 U -10 U -1o U <br />Sulfate m /I 7 0 50 <br />1 1.15 0.93 <br />TDS Ratio m 11 . <br />50 <br />105 <br />86 <br />TDS Calc. talc. <br />m /I <br />30 650 109 <br />70 <br />120 <br />80 <br />TDS <br />636 55 <br />TSS mg/ l _0.01 U 0.01 U -0.01 U <br />Zinc, dissolved <br />Baseline and VJY 2000 data adapted from WWE (2001). <br />2 ACZ Laboratory, Steamboat Springs, CO <br />3 Negative values denote readings below lab detection levels <br />4 ACZ Lab Qualifiers: U - Analyte was analyzed for but not detected at the indicated MDL <br />H - Holding time exceeded; pH is a f ield test with an immediate hold time. <br />B - Analyte conc detected at a value bet method detection limit (MDL) and practical quantitation limit (PQL). <br />C-1 <br />West Elk Mine <br />2007 Annual Hydrology Report <br />Hydrogeo, Inc.