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Colorado Department of Public Health and Environment <br />Air Pollution Control Division <br />Mountain Coal Company, LLC - West Elk Mine Surface Facilities <br />Permit No. 95GU508-2 <br />Final Approval - Modification-3 <br />Permit History__ <br />Date Action Description _ <br />This Issuance FA Modification-3 Increase volume of Refuse coal and waste through reject <br />bin from 300.000 tpy to 1,000,000 tpy Increase PM from <br />64 6 tpy to 64 8 tpy decrease PM 10 frcm 27 7 tpy to 25.8 <br />tpy Re establish short term limits to demonstrate <br />compliance with the National Ambient Air Quality <br />Standards (NAAQS) _ <br />March 1.9, 2007 + FA Modification-2 Final Approval _ <br />August 3, 2005 IA Modification-2 Replacement of two screens with same make and model <br />__ screens. Issued as an Initial Approval <br />April 17, 2003 _ FA Modification-1 Final Approval <br />September 23, 1998 IA Modification-1 Change in name of permittee from Mountain Coal <br />Company - West Elk Mine to Mountain Coal Company, <br />LLC <br />March 10, 1997 IA Initial Aporovai Issued to Mountain Coal Company - <br />West Elk Mine <br />APEN Submittal Log (to be maintained further by the permittee) <br />APEN Submittal Date APEN Expiry Date Renewal APEN to be Remarks <br />submitted by <br />June 4 2009 June 4. 2014 May 5, 2014 , <br />Notes to Permit Holder <br />1) The production or raw material processing limits and emission limits contained in this permit are <br />based on the prod uction/processing rates requested in the permit application These limits may <br />be revised upon request of the permittee providing there is no exceedance of any specific <br />emission control regulation or any ambient air quality standard A revised air pcllutlon emission <br />notice (APEN) and application form must be submitted with a request for a permit revision. <br />2) This source is subject to the Common Provisions Regulation Part II Subpart E Affirmative <br />Defense Provision for Excess Emissions During Malfunctions The perm ttee shall notify the <br />Division of any malfunction condition which causes a violation of any emission limit or limits stated <br />in this permit as soon as possible, but no later than noon of the next working day, followed by <br />written notice to the Division addressing all of the criteria set forth in Part II E 1 of the Common <br />Provisions Regulation. See <br />httpa/www cdphe.state co.us/regulations/airregs/100102agcccommonprovisionsreg pdf <br />3) This source is classified as a <br />Synthetic Minor Source <br />At a: Synthetic Minor Facility <br />AIRS Point ID: 05110015/012 Page 4 of 5