2012-03-09_REPORT - C1981019 ‎(8)‎

• Permit No: C1981019
• IBM Index Class Name: Report
• Doc Date: 3/9/2012
• Doc Name: 2011 Annual Hydrology & Reclamation Report ‎(2 of 4)‎
• From: Colowyo Coal Company
• To: DRMS
• Annual Report Year: 2011
• Permit Index Doc Type: Hydrology Report
• Email Name: RDZ
• Email Name: DIH
• Media Type: D
• Archive: No

Colowyo Coal Company 2011 Annual Reclamation and Hydrology Report
COLOWYO MINE
LGSC
Listing of Stream Lab Data Flow Field Field Field Lab Lab TDS NO3 NO2 NO3 +NO2 NH3 Total Bicarb
No datum => Blank Rate pH Temp Conduct pH Conduct -180 TSS as N as N as N as N P as HCO3 Sulfate As Ca Fe Pb Mg Mn Hg Se Na Zn
cfs S U deg C umho /cm S U umho /cm mg/I mg/I mg/I mg/I mg/I mg/I mg/I mg/I mgA mg/I mg/I mg/I mg/I mg/I mg/I mg/I mg/I mg/I mg/I
Statistics
Mean 4 07 8 13 9 29 1605 22 8 05 1698 00 1336 68 60 92 1 44 0 05 2 30 0 12 0 07 426 16 65 50 0 00 140 17 0 65 0 05 144 27 0 13 0 00 0 01 72 85 0 03
Std. Dev. 5 22 0 72 5 89 356 15 0 24 309 98 338 42 248 18 0 77 0 08 2 08 0 21 006 96 72 166 45 0 00 24 76 0 92 0 06 29 43 006 0 00 0 00 25 04 0 03
Coef. Var.
Range 46 94 13 2 25 6 2160 2 5 2659 3420 3698 4 0 59 8 19 2 25 0 495 741 9 710 0 0177 198 8 81 0 199 225 3 0 385 0 0009 0 0295 144 3 0 195
Max 47 17 8 25 2900 8 6 2820 4050 3700 4 1 0 6 8 29 2 26 0 5 747 945 0 018 208 8 84 0 2 226 0 39 0 001 0 03 164 0 2
Min 006 4 6 -0 6 740 6 1 161 630 2 0 1 0 01 0 1 0 01 0 005 5 1 235 0 0003 10 0 03 0 001 0 7 0 005 0 0001 0 0005 19 7 0 005
Max at 4/27/1998 11/18/1997 7/26/1982 10/3/1996 8/19/1991 1/19/1993 11/8/2000 4/30/1985 12/28/1989 5/7/2001 12/26/1985 12/14/1989 1/7/1999 2/23/2010 12/4/1989 4/7/1982 12/28/1989 8/13/2008 11/2/2009 12/4/1989 8/13/2008 2/16/2004 10/4/1989 10/8/1998 10/2/2000
Min at 12/6/1999 7/8/2002 12/18/1996 4/5/2002 5/14/1991 6/23/1992 5/23/1995 9/30/1994 8/10/2004 11/1/2004 8/17/1992 11/2/2009 9/11/1997 5/14/1992 5/20/1997 8/14/2007 3/13/1984 2/1/1988 11/5/2001 5/20/1997 7/31/2000 6/1/1993 9/20/2001 4/17/2000 6/28/1985
#OfSamples 313 257 303 257 337 321 155 332 68 58 119 146 117 135 135 127 195 142 127 196 133 127 134 137 127
LGSC
Exhibit 2A
Water Quality Data
1982 -2010
Lower Good Spring Creek
(LGSC)
Station Date
LGSC 10/13/1999 2 92 8 6 8 1342 8 1 1920 1620 10 2 08 0 05 0 12 494 684 0 005 88 7 0 31 0 02 163 0 02 0 001 0 009 129 0 01
LGSC 11/11/1999 2 92 8 1 1 5 1091 7 9 1880 5
LGSC 12/6/1999 006 8 06 1 2 1158 7 8 1850 16
LGSC 1/7/2000 2 39 8 12 1 2 1084 7 7 1820 5
LGSC 2/7/2000 2 39 8 14 2 1 1106 7 8 1780 1500 6 1 18 0 05 0 05 440 636 0 005 104 0 19 0 02 142 0 02 0 001 0 011 90 3 0 01
LGSC 3/7/2000 3 2 8 23 4 8 1157 7 7 1730 6
LGSC 4/17/2000 5 03 8 21 10 1138 7 8 1550 1210 33 2 04 0 05 0 12 373 531 0 005 99 4 0 76 0 02 126 0 02 0 001 0 008 19 7 0 01
LGSC 6/5/2000 2 65 8 15 19 3 1491 7 8 1570 96
LGSC 7/3/2000 2 2 8 22 14 4 1862 7 6 1700 86
LGSC 7/31 /2000 1 26 8 17 17 8 1927 7 8 1730 1420 32 1 81 0 05 0 05 446 622 0 005 123 0 67 0 005 153 0 005 0 0002 0 018 98 9 0 2
LGSC 8/21 /2000 0 98 8 28 13 5 2037 7 7 1890 7
LGSC 9/7/2000 1 26 8 02 16 1 2048 7 6 1880 1600 11 0 35
LGSC 10/2/2000 1 58 8 6 10 3 2089 8 1790 1630 5 1 05 0 05 0 07 478 678 0 005 138 0 25 0 02 153 0 02 0 001 0 012 107 0 2
LGSC 11/8/2000 1 15 8 29 0 5 1182 7 7 1920 4050 8 0 05
LGSC 12/4/2000 1 91 8 28 1 7 1173 7 5 1860 5
LGSC 1/2/2001 1 8 8 32 1 4 1127 7 6 1750 5
LGSC 2/5/2001 8 4 1620 1500 20 2 31 0 05 2 33 0 3 0 06 456 730 0 005 152 0 28 0 2 152 0 168 0 001 0 008 81 6 0 05
LGSC 3/5/2001 0 98 8 29 1 8 1015 8 1 1630 20 136 138
LGSC 4/16/2001 4 07 8 11 4 2 1078 7 8 1640 20 146 138
LGSC 5/7/2001 1 69 8 3 8 8 1080 8 1 1450 1100 20 1 3 0 05 1 3 0 3 0 05 388 520 0 005 136 0 21 0 2 120 0 046 0 001 0 007 50 3 0 05
LGSC 6/15/2001 2 92 8 19 8 7 1254 8 2 1370 20 137 140
LGSC 7/5/2001 0 95 8 17 15 2 1884 8 1750 20 139 152
LGSC 8/6/2001 1 26 8 03 14 4 1663 8 1 1740 1680 164 0 52 0 01 0 52 0 12 0 2 474 720 0 001 146 0 35 0 04 161 0 168 0 0002 0 004 91 0 01
LGSC 9/20/2001 0 25 8 16 11 2 1545 7 8 1950 1530 6 2 74 0 01 2 74 0 05 0 04 462 720 0 001 140 0 45 0 04 155 0 101 0 0002 0 001 92 6 0 01
LGSC 10/1/2001 2 15 8 04 8 5 1420 8 1 2000 5 132 152
LGSC 10/17/2001 036 8 14 5 4 1418 7 3 1140 6 151 159
LGSC 11/5/2001 0 42 8 18 4 2 1303 8 1600 1510 5 1 51 0 01 1 51 0 15 0 02 395 720 0 001 144 0 51 0 001 143 0 127 0 0002 0 007 93 4 0 01
LGSC 12/5/2001 0 48 8 04 1 9 1402 7 9 1950 5 152 159
LGSC 1/2/2002 52 723 02 1017 78 1950 8 146 147
LGSC 2/11 /2002 0 26 7 75 1 2 1021 7 9 1860 1520 2 18 0 01 2 18 0 05 0 04 416 710 0 001 158 0 15 0 04 163 0 113 0 0002 0 009 95 6 0 01
LGSC 3/14/2002 0 3 7 91 1 7 768 7 6 1580 32 108 111
LGSC 4/5/2002 2 27 806 6 3 740 7 9 1740 1380 6 1 07 0 01 1 07 0 05 0 02 343 680 0 001 148 0 25 0 04 144 0 09 0 0002 0 007 71 8 0 01
LGSC 5/8/2002 1 26 7 91 7 2 1351 7 9 1970 1120 18 0 47 0 01 0 47 0 05 0 02 386 760 0 001 143 0 36 0 04 157 0 134 0 0002 0 005 111 0 01
LGSC 6/28/2002 7 02 17 7 1737 8 1 2020 10 154 176
LGSC 7/8/2002 4 6 16 9 2060 8 1 2060 6 139 169
LGSC 8/2/2002 806 15 2 2177 7 9 2190 10 148 175
LGSC 10/3/2002 4 07 7 94 8 3 2430 7 7 2450 6 150 200
LGSC 10/24/2002 306 8 13 6 2 2275 7 5 2320 1790 6 0 62 0 01 0 62 0 34 0 02 532 850 0 001 148 0 45 0 04 167 0 133 0 0002 0 003 122 0 01
LGSC 12/13/2002 4 07 7 95 1 1 1210 7 7 2140 165 192
LGSC 1/23/2003 4 07 8 1 6 2070 7 8 2070 5 140 148
LGSC 2/12/2003 5 03 8 0 7 2070 8 2050 1680 5 1 07 0 01 1 07 0 2 0 03 514 750 0 001 148 0 03 0 04 162 0 173 0 0002 0 005 104 0 01
LGSC 3/10/2003 4 38 8 1 3 1 1780 8 1730 14 138 146
LGSC 4/1/2003 3 77 8 2 6 2 1860 8 1 1840 6 128 132
LGSC 5/28/2003 3 77 8 1 13 8 1740 8 1750 1360 8 1 02 0 04 106 0 2 0 05 437 590 0 0009 152 0 27 0 04 150 0 103 0 0002 0 007 68 7 0 01
LGSC 6/2/2003 3 77 8 1 12 4 1680 8 1 1700 12 163 143
LGSC 7/1/2003 3 77 8 1 13 9 1910 8 3 1930 5 157 172
LGSC 8/7/2003 0 42 7 9 13 8 2320 7 9 2270 1770 6 0 83 0 01 0 83 0 2 0 05 602 820 0 00133 154 0 25 0 04 164 0 131 0 0002 0 001 164 0 01