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Hernandez, Alysha <br />From: Kaldenbach, Tom <br />Sent: Friday, August 19, 2011 10:29 AM <br />To: Hernandez, Alysha <br />Subject: FW: 4Q2010 West Elk SOD Micrioseismic Report <br />Attachments: SOD Seismic Report_Q4_2010.pdf <br />Alysha, <br />Please insert this email and its attachments in Laserfiche under: <br />C1980007 <br />Report <br />Seismic Monitoring Report Q4 2010 <br />Thanks, <br />Tom <br />From: Welt, Kathy [mailto:KWelt @archcoal.corn <br />Sent: Wednesday, June 01, 2011 1:29 PM <br />To: Kaldenbach, Tom <br />Subject: FW: 4Q2010 West Elk SOD Micrioseismic Report <br />See the 4 Q 2010 seismic report for your files. <br />Cathy 'Weft, <br />Environmental Engineer III <br />Mountain Coal Company, LLC <br />West Elk Mine <br />P.O. Box 591 <br />Somerset, CO 81434 <br />Phone (970) 929 -2238 <br />Cell (970) 433 -1022 <br />Fax (970) 929 -5050 <br />From: Koontz, Wendell <br />Sent: Monday, March 21, 20116:50 AM <br />To: Welt, Kathy <br />Subject: 4Q2010 West Elk SOD Micrioseismic Report <br />Kathy <br />Attached is the 4Q10 SOD report. Nothing unusual for the West Elk data. Both Oxbow and BRL report much more MIS <br />and three possibly natural tectonic events. <br />Let me know if you have any questions. <br />W <br />Wendell Koontz <br />