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Poison Gulch <br />Surtace Water Guality end Field Pareme[ere <br />,I 11 <br />u <br />1I 1, <br />u <br />U <br />Mountain Coal West Elk Mine <br />Monitodn Location Poison Gulch Baseline 2005 Water year <br />Desch lion Units Minimum MerJmum Maan 552005 6Ifi2005 ]/52005 8/42005 9162005 1022005 <br />FIeM Paremetere' <br />Flow m 97 12.5 Wet D D D <br />Elecldcel Contluctivily µmhos/cm 271 400 d79 <br />H SU ].O8 6.56 659 <br />Tem ereture °C °C <br />Tem ereture °F °F 5t 6 54.9 55.2 <br />Comment <br />Laboreto Paremetere <br />Name of Certi0etl Lab ACZ ACZ <br />Lab Referenw # L51003-06 L51488-06 <br />Sam le Date 552005 852005 <br />Lab Test Date SH 2.521 65-7/5 <br />Sam led B <br />Alkalinity (Total CaCO~) mg/I 119 152 136 119 152 <br />Aluminum, tlissolvetl m A -0.03 -0.03 -0.03 -0.03 -0.03 <br />Anions me B 2.4 3.0 2.7 2.4 30 <br />Arsenio, Oissolvetl m 0 <br />Arsenic, total m A -0.0005 0000] 00001 -0.0005 0.000] <br />Bicaro00ate m A 11B 152 136 119 152 <br />80rOr1, dissolved /I 0.02 003 003 002 003 <br />Cadmium, tlissolvetl m /I -0005 -0.005 -0.005 -0.005 -0.005 <br />Callum, tlissolvetl m A 22.0 35.5 2BB 220 35.5 <br />Camonate m 0 -2 -2 -2 -2 -2 <br />Cation-Anion Balance % -2.1 7.7 2.B -2.1 7.7 <br />CBtidna me 2.3 3.5 2.9 2.3 3.5 <br />CDlodde m A 1 1 1 1 1 <br />Chromium m /I <br />ConduCllvlty µmhoslcm 240 295 268 2d0 295 <br />Co r, tlissolvetl m A -0.01 -001 -0.01 -001 -0.01 <br />C anitle, IOWI m <br />Hardness m 0 78 124 101 78 12d <br />H tlroxitle m 0 -2 -2 -2 -2 -2 <br />Iron, OissoNed m d 00) 0.11 0.09 00] 0.11 <br />Iron, total m d 041 063 0.42 O.d3 061 <br />Lead, tlissolvetl m /I -0.04 -0.04 -0.04 -0.Da -0.04 <br />LeaQ total m 0 <br />Ma nesium tlissolvetl m P 5.6 86 7.1 5.6 fifi <br />Man an85e, tlissolvetl m fl -0.005 -0.005 -0.005 -0.005 -0.005 <br />Man anese, total m B -0.005 0010 0.003 -0005 0.010 <br />Memu ,total m d -0.0002 -0.0002 -0.0002 -0.OW2 -0.0002 <br />Mo enum, tlissolvetl m A -0.01 -0.Ot -0.01 -001 -0.O1 <br />Nickel tlissoNed m 0 <br />Nitrate as N tlissolvetl m 11 <br />Nitrete/Nitnte as N m fl -0.02 0.06 <br />Nitrate as N tlissolvetl m d <br />H SU 7.8 8.1 B.0 7.8 B.1 <br />Phos hate m /I 0.21 0.21 0.21 0.21 0.21 <br />Ph05 horns OMO ,tlissolvetl m /I 0.07 0.07 0.07 0.07 0.07 <br />Polasslum dissolved m 4 2.9 2.9 2.9 2.9 2.9 <br />Selenium, tlissolvetl m ll <br />Selenium, total m 6 -0.001 -0.001 -0.001 -0.001 -0.001 <br />Silver, total m n <br />So0ium Abso lion Ratio SAR talc. 0.82 0.92 0.87 0.92 09z <br />SOtlIUm, dissolved m 0 t6.fi 23.3 20.0 16.6 23.3 <br />Suttate m n -w -1n no -10 -1n <br />TDS Ratio celc. 1.04 108 1.06 108 104 <br />TDS Calc. m 120 163 142 120 163 <br />TDS m d 130 170 150 130 1]0 <br />TSS m B -5 26 12 S 28 <br />Zinc, tlissolvetl m B -0.01 -0.01 -0.01 -0.01 -001 <br /> <br />ACZ-ACZ LaDOretones, Inc., Steamboat S nn 5, CO <br />Ne alive values denote reatlin s below lab detection levels <br />NM -Not Measuretl <br /> <br />C-27 <br />West Elk Mine <br />2005 Annual Hytlrology Report <br />HytlroGeo, Inc. <br />