2009-03-27_REPORT - C1981019 ‎(9)‎

• Permit No: C1981019
• IBM Index Class Name: REPORT
• Doc Date: 3/27/2009
• Doc Name: 2008 AHR & ARR Exhibit 2A and Exhibit 2B
• From: Colowyo Coal Company
• To: DRMS
• Annual Report Year: 2008
• Permit Index Doc Type: Hydrology Report
• Email Name: JRS
• Media Type: D
• Archive: No

Colo-1o C-1 Company Exhibit 2A
AnnualRec1madon and HydM1OA7Reporr
Water Quality Data
COLOWYO MINE 1983-2008
Lower Taylor Creek
(LTC)
Listing of Stream Lab Data
Flow Field Field Field Lab Lab TDS N03+NO2 NH3 Bicarb Ambig. Ambig. SNAmbig. SNAmbig. SNAmbig. SNAmbig. SW Ambig. SNAmbig. SNAmbig. SNAmbig. SNAmbig. S1h
No datum => Blank Rate pH Temp Conduct pH Conduct -180 TSS as N as N as CaC03 Sulfate P As Ca Fe Pb Mg Mn Hg Se Na Zn
cfs S.U. deg C umho/cm S.U. umho/cm mgA mgA mgA mgA mgA mgA mgA mg/I mgA mgA mgA mgA mgA mgA mgA mgA mgA
Statistics
Mean 0.59 9.44 777.75 1613.23 800.22 1592.35 1127.76 468.15 0.76 0.06 297.42 322.65 1.90 46.24 47.16 2.56 56.85 58.09 0.19 0.00 46.40 46.42 0.06
Std. Dev. 0.86 0.33 6.50 452.45 0.27 438.92 355.76 2035.66 1.45 0.07 83.38 211.36 24.93 0.00 25.92 18.67 0.05 45.65 1.24 0.00 0.00 36.07 0.14
Coef. Var.
Range 6.3 1.9 25.1 3357.2 1.6 3370 1786 20582 4.94 0.36 400 1109 184.995 0.027 108.2 131.99 0.28 230 7.845 0.0009 0.015 168 0.795
Max 6.3 9.3 25 3580 8.6 3570 1930 20584 4.95 0.38 467 1128 185 0.028 134 132 0.3 238 7.85 0.001 0.016 174 0.8
Min 0 7.4 -0.1 222.8 7 200 144 2 0.01 0.02 67 19 0.005 0.001 25.8 0.01 0.02 8 0.005 0.0001 0.001 6 0.005
Max at 4/29/1986 8/12/ 1983 6118/ 1987 3/611998 21251 1991 3/6/1998 10/5/1989 3/1/1988 6/28/1985 2/5/2001 11/18/1997 10/511989 3131/1988 3/1/1998 2124/1986 2/2811990 2/28/1990 10112/1988 3/1/1988 2/
5/2001 8113/1984 1 0/5/1989 2/28/1990
Min at 12/13/2002 6/28/ 1985 11/11/ 1999 5/19/1997 2/22/ 1989 2/28/1990 2128/1990 3130/1989 217/2000 10/5/1989 3/5/2001 2/28/1990 9/1111997 11611998 2/5/2001 9/1311995 4/17/2000 22811990 7/1/1996 6/
1/1993 10/3/1996 2/28/1990 6/28/1985
# Of Samples 195 190 188 90 264 132 59 133 95 77 56 100 110 112 116 115 109 107 109 110 110 110 55
Station Sample Flow Field Field Field Lab Lab TDS N03+NO2 NH3 Bicarb Ambg. Ambig. SNAmbig. SNAmbig. SNAmbig. SNAmbig. SW Ambig. SN Ambig. SNAmbig. SNAmbig. SNAmbig. Sw
Name Date Rate pH Temp Conduct pH Conduct -180 TSS as N as N as CaC03 Sulfate P As Ca Fe Pb Mg Mn Hg Se Na Zn
cfs S.U. deg C umho/cm S.U. umho/cm mgA mgA mgA mgA mgA mgA mgA mgA mgA mgA mgA mgA mgA mgA mg/I mgA mgA
---------
LTC ------ -
2/712000 ---- -----
0
8.4 --
1.8 ----
1345 ----
7.7
1970
1680 ------
5
0.01
0.05 -------- - -
438 686 0.05 .-
0.005 _..- -
103 --- -
0.11 - -
0.02 ------- -
156 --------
0.02
0.001
0.005
122
0.01
LTC 3/712000 0.44 8.58 3.2 1174 7.8 1840 5
LTC 4/1712000 1.06 8.44 16.1 1790 7.9 2070 1660 5 2.04 0.05 188 692 0.05 0.007 84.6 0.05 0.02 164 0.02 0.001 0.005 38.6 0.01
LTC 6/5/2000 0.59 8.36 20.3 1741 7.9 1790 6
LTC 8/21/2000 0
LTC 215/2001 1.59 8.3 1 222.8 7.4 359 260 20 0.54 0.38 67 60 0.118 0.005 25.8 2.02 0.2 18.3 0.079 0.001 0.005 30.2 0.05
LTC 3/5/2001 0.49 8.45 0 1008 8.2 1800 20 123 136
LTC 1/2/2002 0
LTC 2/11/2002 0
LTC 3/14/2002 0
LTC 6/28/2002 0
LTC 7/812002 0
LTC a/2/2002 0
LTC 10/312002 0
LTC 10/24/2002 0
LTC 12/13/2002 0
LTC 1/23/2003 0
LTC 21122003 0
LTC 3/102003 1.55 8.3 1 705 7.9 703 1040 43.4 34.5
LTC 4/1/2003 0
LTC 5/28/2003 0
LTC 6/22003 0
LTC 7/12003 0
LTC 8/72003 0
LTC 9/22003 0
LTC 10/72003 0
LTC 11/112003 0
LTC 12112003 0
LTC 1/212004 0
LTC 7/162004 0
LTC 3/112004 0
LTC 4/52004 0
LTC 5/4/2004 0
LTC 6/172004 0
LTC 7/192004 0
LTC 6/10/2004 0
LTC