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/1 mg/I mg/I
LGSC
Exhibit 2A
Water Quality Data
1982 -2010
Lower Good Spring Creek
(LGSC)
Statistics
Mean 4 07 8 13 9 29 1605 22 8 05 1698 00 1336 68 60 92 144 0 05 2 30 0 12 0 07 426 16 65 50 0 00 140 17 0 65 0 05 144 27 0 13 000 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 43 006 000 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 0 018 208 884 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
Mm 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
# Of Samples 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
Station Date
LGSC 6/18/1987 5 03 8 20 1690
LGSC 7/20/1987 3 77 7 1 18 1675 7 8 1840 26
LGSC 8/18/1987 3 48 7 4 20 1850 8 3 1710 1470 22 6 75 0 04 0 01 326 875 0 001 134 0 17 0 02 183 0 05 0 0002 0 018 81 0 01
LGSC 9/14/1987 3 48 7 4 12 1875 7 9 1840 6
LGSC 10/21/1987 2 39 7 4 10 1950 7 9 1830 1434 16 6 09 0 02 0 04 359 794 0 001 145 0 23 0 02 170 0 08 0 0002 0 013 90 0 01
LGSC 11/25/1987 4 07 2 7 7 1950 22
LGSC 12/21/1987 4 07 0 7 8 1770 56
LGSC 2/1/1988 1 8 7 8 1590 1398 72 6 34 0 03 0 06 365 731 0 001 149 0 03 0 02 158 0 04 0 0002 0 008 69 0 01
LGSC 3/1/1988 4 38 7 8 1600 36
LGSC 3/31 /1988 536 1420 7 9 1410 1356 28 5 74 0 08 0 04 371 710 0 001 165 0 26 0 02 150 0 09 0 0002 0 004 67 0 01
LGSC 4/20/1988 8 31 7 8 1410 120
LGSC 5/31/1988 9 11 8 1 1240 1054 186 0 03 242 508 0 001 179 0 89 0 02 154 0 14 0 0002 0 009 45 0 01
LGSC 6/27/1988 4 38 7 8 1520 1376 76 0 02 296 700 0 001 116 0 39 0 02 141 0 07 0 0001 0 014 62 0 01
LGSC 7/29/1988 2 65 7 9 1660 56
LGSC 8/16/1988 2 15 7 6 1720 18
LGSC 9/19/1988 1 91 8 2 11 1880 7 7 1810 14
LGSC 10/12/1988 1 91 7 5 9 1670 8 1750 1508 14 0 12 0 02 406 807 0 001 164 0 28 0 02 181 0 11 0 0001 0 009 79 0 01
LGSC 11/30/1988 2 65 7 7 1750 14
LGSC 12/6/1988 1 47 7 7 1860 30
LGSC 2/22/1989 1 8 7 8 1800 1480 10 0 11 0 087 390 761 0 001 158 0 26 0 02 173 0 13 0 0001 0 013 67 0 01
LGSC 3/30/1989 3 77 7 9 1120 6
LGSC 5/1/1989 7 7 1640 1294 32 3 65 0 1 0 044 330 663 0 001 145 0 35 0 02 151 0 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 7/27/1989 136 8 18 1893 8 1 1920 1628 40 1 87 0 01 0 114 400 848 0 001 177 0 28 0 14 185 0 11 0 0001 0 007 88 0 01
LGSC 10/4/1989 1 8 26 2260 8 3 2040 1804 16 144 0 09 0 049 458 897 0 001 118 0 49 0 02 117 0 16 0 0001 0 03 131 0 01
LGSC 12/4/1989 8 2 2200 1834 14 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 2/28/1990 2 39 8 1 1820 1574 4 4 3 0 15 0 014 418 796 0 001 200 0 36 0 02 210 0 18 0 001 0 004 79 0 01
LGSC 3/27/1990 3 19 8 3 1450 1454 16 2 9 0 05 0 023 376 747 0 004 165 0 31 0 02 185 0 07 0 0001 0 005 76 0 01
LGSC 4/30/1990 2 52 8 2 1920 1616 8 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 5/30/1990 2 52 7 81 1799 8 1 1870 10
LGSC 6/29/1990 1 15 8 15 2140 7 9 1970 12
LGSC 7/19/1990 1 8 8 51 2090 8 3 1960 14
LGSC 8/9/1990 0 6 8 66 15 2140 8 2040 1790 16 0 35 0 05 0 027 517 891 0 002 181 034 0 05 163 0 12 0 0001 0 004 100 0 01
LGSC 9/5/1990 7 9 1950 8
LGSC 9/21/1990 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 0 001 166 0 21 0 02 170 0 11 0 0001 0 006 79 0 01
LGSC 3/28/1991 306 7 9 2140 18
LGSC 4/16/1991 334 7 9 1750 18
LGSC 5/17/1991 486 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 36
LGSC 8/19/1991 0 88 12 8 5 1750 1708 10 0 35 0 03 0 035 430 910 0 001 165 0 17 0 02 152 0 12 0 0001 0 001 93 0 2
LGSC 9/30/1991 0 8 11 7 7 2320 2
LGSC 10/16/1991 064 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 0 001 100 0 01
LGSC 11/15/1991 0 98 7 7 8 2570 6