2008-03-13_REPORT - C1981019 (3)

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Calowyo Coal Comp®y Exhibit 2A Aaaaal Reclamation aad Nydrubgy Report Water Quality Data 1982-2005 COLOWYO MINE LGSC Lower Good Spring Creek ~~) Listing of Stream Lab Data TD N03 N02 N03+N02 NH3 Total Biprb SW Ambig. SNAmbig. SNAmbig. SNAmbig. SNAmbig. SNAmbig. SNAmbig, SNAmbig. SW Ambig SW Ambig No datum => Blank Flow Rate Field pH Field Temp Field Conduct Lab pH Lab Conduct S -180 TSS as N as N as N as N P as CaC03 Sulfate . As . Ca Fe Pb Mg Mn Hg Se Na Zn cfs S.U. deg C umholcm S.U. umho/an mgll mgA mgll mgA mgll mgD mgD mgA mg/l myl mgA mgA mgA mgD mgD mgA mgA mgD mgD Statistics Mean 4.14 8.07 9.37 1673.04 11.01 1703.38 1339.89 63.32 1.31 0.03 2.36 0.12 0.06 407.32 654.68 0.00 140.82 0.60 0.05 145.92 0.13 0.00 0.01 72.65 0.02 Sld. Dev. 5.32 0.41 5.97 368.28 0.23 317.35 358.16 258.93 0.80 0.04 2.21 0.22 0.07 81.33 160.75 0.00 25.63 0.63 0.05 29.73 0.06 0.00 0.00 25.76 0.03 Ccef. Var. Range 46.94 4.7 25.6 2160 2.4 2659 3420 3698 4 0.09 8.19 2.25 0.495 573 710 0.0177 198 4.24 0.199 225.3 0.315 0.0009 0.0295 144.3 0.195 Max 47 9.3 25 2900 8.5 2820 4050 3700 4.1 0.1 8.29 2.26 0.5 603 945 O.DiB 208 4.27 0.2 226 0.32 0.001 0.03 164 0.2 Min 0.06 4.6 -0.6 740 6.1 161 630 2 O.t 0.01 0.1 0.01 0.005 30 235 0.0003 10 0.03 O.OD1 0.7 0.005 0.0001 0.0005 19.7 0.005 Mazat 4!27!1998 11118fl991 7!261 1982 10!311996 8119/ 1991 111911993 1118/2000 4130/1985 11128!1989 5812001 12126/1985 12/14N969 18/1999 1012412002 121411989 48/1982 12/2811989 4/2711998 5N7l2001 1 2/4!1989 4811982 2/1612004 1 0/4119119 1 018H998 1 01212000 Min at 1116N999 7!6/2002 12/181 1996 4/512002 5/14/ 1991 612311992 5/2311995 9130/1994 BNO/2004 1111/2004 8117/1992 BNOf2004 9!1111997 511411992 512011997 1111/2004 3/1311984 21111988 1 11512001 5/20/1997 7!31!2000 611/1993 9/2012001 4/1712000 6!2811985 # Of Sample: 280 224 270 224 305 289 135 301 49 45 100 104 105 115 115 115 163 122 115 164 113 115 115 117 115 Fl Fi ld Fi ld Fi ld L b L b TDS N03 N02 N03+N02 NH3 Total Bicarb Ambig. SW Ambig. SW Ambig. SNAmbig. SWAmbig. SWAmbig. SNAmbig. SNAmbig. SNAmbig. SNAmbig. SW Station Name Sample Date ow Rate e pH e Temp e Conduct a pH a Conduct -180 TSS as N as N as N as N P as CaC03 Sulfale As Ca Fe Pb Mg Mn Hg Se Na Zn cfs S.U. deg C umha/cm S.U. umho/cm mgD mgA mgD mgA mgll mgA mgA mgA mgll mgA mgA mgA mgD mgA mgD mgA mgA mgD mgD LGSC 8!1611988 2.15 7.6 1720 18 LGSC 9119/1988 1.91 8.2 11 1880 7.7 1810 14 LGSC 1011211988 1.91 7.5 9 1670 8 1750 1508 14 0.12 0.02 406 8DT 0.001 164 0.28 0.02 181 0.11 0.0001 0.009 79 0.01 LGSC 11!3011986 2.65 7.7 1750 14 LGSC 121611986 1.47 7.7 1860 30 LGSC 2122N989 1.6 7.8 1800 1480 10 0.11 0.087 390 761 0.001 158 0.2fi 0.02 173 0.13 O.D001 0.013 67 0.01 LGSC 3/3011989 3.77 7.9 1120 6 LGSC 5/111989 7.7 1640 1294 32 3.65 0.1 0.044 330 663 0.001 145 0.35 O.D2 151 U.09 0.0001 0.009 59 0.01 LGSC 5/26/1989 2.39 8.04 1966 7.8 2000 1626 16 0.16 0.032 378 850 0.001 193 0.51 0.02 202 0.13 0.0001 0.012 0.01 LGSC 7/27N989 1.36 8.18 1893 8.1 1920 1628 40 1.87 0.01 0.114 400 848 0.001 177 0.28 0.14 165 0.11 0.0001 0.007 86 0.01 LGSC 10/4N989 1 8.26 2260 8.3 2040 1804 16 1.44 0.09 0.049 458 897 0.001 118 0.49 0.02 117 0.16 0.0001 0.03 131 0.01 LGSC 1214!1969 8.2 2200 1834 id 2.26 0.03 484 945 0.001 202 0.78 0.02 226 0.21 0.0001 0.007 94 0.01 LGSC 12/28/1989 1.26 8 2150 1738 6 4.1 0.29 0.03 492 906 0.001 208 1.32 0.02 212 0.18 0.0001 0.015 97 0.01 LGSC 2128N990 2.39 8.1 1620 1574 4 4.3 0.15 0.014 418 796 0.001 200 0.36 0.02 210 0.18 0.001 O.D04 79 0.01 LGSC 3/27/1990 3.19 8.3 1450 1454 i6 2.9 0.05 0.023 376 747 0.004 165 0.31 0.02 185 O.D7 0.0001 0.005 76 0.01 LGSC 413011990 2.52 8.2 1920 1616 6 2.4 0.12 0.013 422 833 0.001 166 0.35 0.02 167 0.09 0.0001 0.008 79 0.01 LGSC 5130!1990 2.52 7.81 1799 8.1 1870 10 LGSC 6/2911990 1.15 8.15 2140 7.9 1970 12 LGSC 7/19!1990 1.8 8.51 2090 8.3 1960 14 LGSC 8l9N990 0.6 8.66 15 2140 8 2040 1790 16 0.35 0.05 0.027 517 891 0.002 181 0.34 0.05 163 0,12 0.0001 0.004 100 D.Ot LGSC 9/5/1990 7.9 1950 8 LGSC 9121/1990 0.6 7.9 2180 8 LGSC 11/9/1990 1.26 8.1 2120 1748 24 1.21 0.09 0.057 442 912 0.003 160 0.84 0.02 168 0.16 0.0001 0.001 90 0.01 LGSC 2/25/1991 2.39 8.4 1810 1678 8 2.61 0.23 0.01 390 844 0.001 i6fi 0.21 0.02 170 0.11 0.0001 0.006 79 0.01 LGSC 312611991 3.06 7.9 2140 18 ~ v$v "116x1991 3 34 7 9 1750 18 LGSC 511711991 4.86 8.1 1760 1386 8 1.22 0.11 0.04 375 691 0.002 145 0.29 0.02 135 0.07 0.0001 0.005 55 0,01 LGSC 6/26/1991 1.26 7.7 1980 12 LGSC 7/23/1991 1.26 7.9 1540 1708 36 10 0 35 0 03 035 0 430 910 0 001 165 0.17 0.02 152 0.12 0.0001 0.001 93 0.2 LGSC 8119/1991 0.88 12 8.5 1750 . . . . LGSC 9130/1991 0.8 11 7.7 2320 2 LGSC 1 011 611 99 1 O.fi4 15 8.2 1710 1686 2 0.36 0.09 0.03 516 864 0.001 178 0.04 0.03 166 0.13 0.0001 O.D01 100 0.01 LGSC 1111511991 0.98 7 7.8 2570 6 LGSC 12/1811991 1.26 3 8 2510 2 LGSC 112211992 1.36 2 8.1 2220 10 LGSC 211011992 1.36 6 8.2 1930 1512 14 2.52 0.14 0.048 416 743 0.001 155 0.45 0.02 157 0.18 0.0005 0.003 69 0.01 LGSC