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quality of the coal pile leachate. Following is a summary of the data. <br />Table N-7 <br />QUALITY COAL PILE TCLP LEACHATE DATA: <br />Coal Mine Waste Leachate (mg/1) <br />Arsenic (mg/1) <br /><0.025 <br />Copper (mg/1) <br /><0.024 <br />Iron (mg/1) <br />3.1 <br />Lead (mg/1) <br /><0.05 <br />Manganese (mg/1) <br />1.1 <br />Mercury (mg/1) <br /><0.0001 <br />Selenium (mg/1) <br /><0.050 <br />Data has been gathered quarterly for the surface waters of East Salt Creek as <br />part of the Annual Hydrologic Report required by the DRMS, over the last several years, <br />both above McClane Creek, and below. The monitoring point above McClane Creek is <br />SW -1, and the monitoring point below McClane Creek is SW -8. The data evaluated for <br />SW -1 and SW -8 is an average of the values recorded during all four quarters over a five <br />year period and the summary is shown below. As previously noted, East Salt Creek at <br />points SW -1 and SW -8 has only been dry two quarters in the last five years. <br />Table N-8 <br />The arsenic concentration in the coal pile leachate is below detectable levels. Due <br />to the undetectable level of arsenic in the coal pile leachate, and insignificant flow, it should <br />Appendix N - PR -02 - 12 - 10/10 <br />SW -1 <br />Data Summary (mg/I <br />2005 <br />2005 <br />2006 <br />2007 1 <br />2008 <br />2009 <br />AVERAGE AVERAGE <br />AVERAGE <br />AVERAGE <br />AVERAGE <br />AVERAGE <br />AVERAGE <br />Arsenic <br />0.082 <br />0.188 <br />0.120 <br />0.128 <br />0.002 <br />Copper <br />0.016 <br />0.013 <br />0.010 <br />1.988 <br />0.905 <br />Iron <br />0.310 <br />0.240 <br />0.538 <br />0.065 <br />0.050 <br />Lead <br />0.000 <br />0.048 <br />0.025 <br />0.040 <br />0.001 <br />Manganese <br />0.097 <br />0.137 <br />1 0.072 <br />0.236 1 <br />1 0.119 <br />Mercury <br />No Data <br />No Data <br />No Data <br />No Data <br />No Data <br />Selenium 1 <br />0.089 <br />0.505 <br />0.270 <br />0.042 <br />0.000 <br />The arsenic concentration in the coal pile leachate is below detectable levels. Due <br />to the undetectable level of arsenic in the coal pile leachate, and insignificant flow, it should <br />Appendix N - PR -02 - 12 - 10/10 <br />SW -8 Data Summary (mg/1) <br />2005 <br />2006 2007 <br />2008 <br />2009 <br />AVERAGE <br />AVERAGE AVERAGE <br />AVERAGE <br />AVERAGE <br />Arsenic <br />0.092 <br />0.147 0.096 <br />0.480 <br />0.055 <br />Copper <br />0.000 <br />0.018 0.005 <br />2.133 <br />0.783 <br />Iron <br />0.278 <br />0.750 0.786 <br />0.055 <br />0.040 <br />Lead <br />0.000 <br />0.045 0.031 <br />0.030 <br />0.001 <br />Manganese <br />0.095 <br />0.145 1 1 0.068 F1 <br />0.187 1 <br />1 0.045 <br />Mercury <br />No Data <br />No Data I I No Data <br />No Data <br />No Data <br />Selenium <br />1 0.098 <br />1 0.479 1 1 0.143 <br />0.041 <br />0.000 <br />The arsenic concentration in the coal pile leachate is below detectable levels. Due <br />to the undetectable level of arsenic in the coal pile leachate, and insignificant flow, it should <br />Appendix N - PR -02 - 12 - 10/10 <br />