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DwrCreek <br />Sur/aea Wa[er Duality entl Field Pa2metaro <br />/ 1 <br /> <br />• <br />Mountain Coal West Elk Mine <br />Monitodn Location Deer Crwk Baseline 20 05 Water Vear <br />Descri lion Units Minimum Maximum Mean 5132005 SI92005 BI82005 ]ISI20D5 Brd2005 9/82005 tW22005 <br />Fieltl Parameters' <br />Flow m 53 114 11.2 0]2 Dam D D <br />Eledricel Conducfivi hoslcm 53] ]98 845 <br />H SU 8.3 842 8.42 <br />Tem e2lure C °C <br />Tem e2lure °F °F 52.4 521 82.5 <br />Comment <br />Labo2to Pdramela2 <br />Name of Cerlifietl Lab AC2 ACZ AC2 <br />Lab Reterencek L5f00&OS L5148B-05 L52135-05 <br />Sam le Date 5/92005 &E2005 ]152005 <br />Leb Tesl Dale 5112-521 85-]/5 ]114-]29 <br />Sem led B <br />Alkalinity (Total CeCO~) mBd 20] 2]4 283 24] 28] 2]4 <br />Aluminum, tlissolved m -0.03 -0.03 -0.03 -0.03 -0.03 <br />Anions me d 5.8 B3 5.9 S.B 8.2 <br />Ar$¢NQ OissONetl m -0.0005 <br />Manic, IOtal -00005 00009 0.0002 V_0009 -0.0005 <br />BiWmpndte m 216 249 235 210 239 249 <br />Boron, tlissolved m d 0.03 0.03 0.03 0.03 0.03 <br />Cadmium, dissolved A -0.005 -D005 -0.005 -D.005 -OWS -0.005 <br />Celdum, dissolved m A 4].0 84.5 56.5 4]0 04.5 56.1 <br />Carbonate m 25 30 28 30 2B 25 <br />Callon-Anion B0100ce % b.] 4.8 -OB -5.] 46 <br />Cations m¢ 5 5.0 8.8 5.9 5.0 6.6 <br />Chloritle m 3 3 3 3 3 3 <br />Chromium m <br />Conductivity lunhos/cm 46] 54] 51] d8] 54] <br />(:0 af, dI5301Vetl m -9.Dt -o.9t -0.01 -0.01 -0.01 <br />C snide, total m <br />HaNness m 1]B 245 211 1]8 245 <br />H tlroxitle m -2 -2 -2 -2 -2 -2 <br />Iron, tlissolvatl m 0.08 0.11 0.10 0.09 0.11 0.10 <br />Iraq total mil 0.39 292 1.84 2.92 038 <br />LeaQ tlissolved m -0.04 -0.04 -006 -0.04 -0.04 <br />Leatl, islet m <br />Ma nesium, dlSSDlvetl m 14.3 204 18.3 143 204 20.1 <br />Man anese, dissolved m -0.005 0.009 0.000 0009 -0.005 -0005 <br />Man anese, total m A -0005 0.049 0.022 0069 -0.005 <br />Merclt ,total m -0.0002 -0.0002 -00002 -0.0002 -0.0002 -O.ooo2 <br />Ma enum tlissolvatl m -0.01 -001 -0.01 -0.01 -0.01 <br />Nickel, tlissolvatl m <br />Nitrate as N ,tlissolvatl m 0.81 <br />Nitrate/Nitrite asN m 006 2.0] 1.50 20T 1.58 088 <br />Nitrite as N , tlissolvatl m A Om <br />Nitro en, ammonia m A -0.OS <br />H SU B.5 B.6 B.8 6.5 6.8 <br />Phos hate m 0.03 0.12 0.08 0.12 003 0.09 <br />Phos hOm3 OM9,di35olv¢tl m 001 0.04 0.03 0.04 0.01 0.03 <br />POIa$$am, tlISS0lved m 3.2 36 3.4 36 J.2 <br />Selenium, tlissolvatl m -D.o9t <br />Selenium,lolal m -0.001 -0.Wt -3.D01 -0001 -0.001 <br />Silver, total m <br />Sotlium Abso lion Raga SAR talc. t o9 1.21 1.15 1.09 1.21 <br />Sodium, tlissolved 32.8 43.9 39.9 32.B 92.9 43.9 <br />SuHale m 30 50 40 30 40 50 <br />TDS Ratio Cale. 0.92 0.98 0.90 0.98 0.92 <br />TDS Calc. <br />TDS <br />TSS m A <br />m A <br />m A 292 <br />2B0 <br />18 348 <br />330 <br />86 319 <br />310 <br />42 292 <br />2B0 <br />60 348 <br />320 <br />t8 <br />330 <br />Zinc. tlissolved m A -0.01 0.02 0.09 -0.ot -0.01 002 <br /> <br />ACZ -ACZ Laborotodes, Inc., Steamboat S rin s, CO <br />Ne alive values tleirole rea0in s below lab tlateGion levels <br />NM -Not Measured <br /> <br />C-20 <br />West Elk Mina <br />2005 Annual Hytlrology Report <br />HydroGeo, inc. <br />