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Lower North Fork <br />Surface Water Ouallty and Field Paremetars <br />• <br />• <br />C~ <br />C-2 <br />Mountain Coal West Elk Mine <br />Monitoring Location N. Fork Lower Baseline 2005 Water Year <br />De6Cf1 fl0n Units Minimum Maximum Mean 5/2/2005 6/5/2005 9/12/2005 <br />Field Parameters <br />Flow cfs <br />Electdc6l Conductivit Umh06/cm 223 139 169 <br />H SU 7.53 7.66 6.96 <br />Tem erature °C °C <br />Tem erature °F °F 44.4 51.7 56.7 <br />Comment <br />Laborato Parameters' <br />Name of Certified Lab ACZ <br /> <br />Lab Reference # L53206-04 <br />Sam le Date s/lvzoo5 <br />Lab Test Date 9na.lon <br />Sam led B SL <br />Alkalini otal CaCO3 m A s3 <br />Aluminum, dissolved m /I 0.04 <br />Anions me /1 1.s <br />Arsenic, dissolved m /I <br />Arsenic, total m /1 -0.0005 <br />Bicarbonate m /I 41 736 76 90 <br />Boron, dissolved m /I 0.02 <br />Cadmium, dissolved m /I -0.005 <br />Calcium, dissolved m /I 25.s <br />Carbonate m ll 3 <br />Cation -Anion Balance °k 5.0 <br />Cations me /I 2.1 <br />Chloride m /I 1.s a 3.e 2 <br />Chromium, total m /I -0.01 <br />Condudivit Umhos/cm 189 <br />Co er, dissolved m A -0.01 <br />C snide, total m A -0.01 <br />Hardness ~ m /I 39.3 109 68.7 82 <br />H tlroxide m /I -2 <br />Iron, dissolved m /I o.1zs 0.065 o.os <br />Iron, total m A o.os 3.e 0.92 2.30 <br />Lead, dissolved m tl 0.0003 <br />Lead, total m /I <br />Ma nesium, dissolvetl m /I a.2 <br />Man anese, dissolved m /I 0.0002 0.05 0.01 0.009 <br />Man anese, total m /I 0.057 <br />Mercu ,total m /I -0.0002 <br />Mol bdenum, dissolved m /I -O.o1 <br />Nickel, dissolved m A -o.ot <br />Nitrate as N ,dissolved m /I -o.oz <br />Nitrate/Nitrite as N m /I -0.02 <br />NiMte as N ,dissolved m /I -0.01 <br />H lab SU 7 8.6 8.1 8.4 <br />Phos hate m 4 0.12 <br />Phos horns Ortho ,dissolved m /I 2.74 0.25 0.04 <br />Potassium, dissolved m /I t.i <br />Selenium, dissolved m /I <br />Selenium, total m /I -0.001 <br />Silver, total m /I -0.00005 <br />Sodium Abso lion Ratio SAR talc. 0.52 <br />Sodium, dissolved m /I 10.6 <br />Sulfate m A 4 25 12 -10 <br />TDS Ratio talc. t.09 <br />TDS Calc. m /I 101 <br />TDS m /I 36 160 101 110 <br />TSS m 4 sA 107 36 56 <br />Zinc, dissolved mg/I -0.01 <br />'Baseline, WY 2000, and WY 2001 data ads led from WWE. <br />ACZ -ACZ Laboratories, Inc., Steamboat S rin s, CO <br />Ne alive values tlenote reatlin s below lab detection levels <br />NM -Not Measured <br /> <br />West Elk Mina <br />2005 Annual Hydrology Report HydroGeo, Inc. <br />