2017-02-03_PERMIT FILE - C1980004 ‎(21)‎

• Permit No: C1980004
• IBM Index Class Name: Permit File
• Doc Date: 2/3/2017
• Section_Exhibit Name: Appendix N Probable Hydrologic Consequences
• Media Type: D
• Archive: No

quality of the coal pile leachate. Following is a summary of the data.
Table N-7
QUALITY COAL PILE TCLP LEACHATE DATA:
Coal Mine Waste Leachate (mg/1)
Arsenic (mg/1)
<0.025
Copper (mg/1)
<0.024
Iron (mg/1)
3.1
Lead (mg/1)
<0.05
Manganese (mg/1)
1.1
Mercury (mg/1)
<0.0001
Selenium (mg/1)
<0.050
Data has been gathered quarterly for the surface waters of East Salt Creek as
part of the Annual Hydrologic Report required by the DRMS, over the last several years,
both above McClane Creek, and below. The monitoring point above McClane Creek is
SW -1, and the monitoring point below McClane Creek is SW -8. The data evaluated for
SW -1 and SW -8 is an average of the values recorded during all four quarters over a five
year period and the summary is shown below. As previously noted, East Salt Creek at
points SWA and SW -8 has only been dry two quarters in the last five years.
Table N-8
The arsenic concentration in the coal pile leachate is below detectable levels. Due
to the undetectable level of arsenic in the coal pile leachate, and insignificant flow, it should
Appendix N - PR -02 -12- 10/10
SW -1 Data Summary (mg/I
2005
2006 2007
2008
2009
AVERAGE
AVERAGE AVERAGE
AVERAGE
AVERAGE
Arsenic
0.082
0.188 0.120
0.128
0.002
Copper
0.016
0.013 0.010
1.988
0.905
Iron
0.310
0.240 0.538
0.065
0.050
Lead
0.000
0.048 0.025
0.040
0.001
Manganese 1
0.097 1
1 0.137 1 0.072 1 1
0.236 1
1 0.119
Mercury
No Data
No Data No Data
No Data
No Data
Selenium
0.089
0.505 0.270
0.042
0.000
The arsenic concentration in the coal pile leachate is below detectable levels. Due
to the undetectable level of arsenic in the coal pile leachate, and insignificant flow, it should
Appendix N - PR -02 -12- 10/10
SW -8 Data Summary (mg/I
2005
2006 2007
2008
2009
AVERAGE
AVERAGE AVERAGE
AVERAGE
AVERAGE
Arsenic
0.092
0.147 0.096
0.480
0.055
Copper
0.000
0.018 0.005
2.133
0.783
Iron
0.278
0.750 0.786
0.055
0.040
Lead
0.000
0.045 0.031
0.030
0.001
Manganese
0.095 1
1 0.145 1 0.068 1 1
0.187 1
1 0.045
Mercury
No Data
No Data No Data
No Data
No Data
Selenium
0.098
0.479 0.143
0.041
0.000
The arsenic concentration in the coal pile leachate is below detectable levels. Due
to the undetectable level of arsenic in the coal pile leachate, and insignificant flow, it should
Appendix N - PR -02 -12- 10/10