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PeabLkq PeabodySage Creek Mine <br />PO Box 250 <br />36600 Routt County Road 27 <br />Peabody Sage Creek Mining, LLC Hayden, CO. 81639 <br />January 8, 2013 <br />Attn: Doug Ryder <br />Final Approval Coordinator <br />Colorado Department of Public Health & Environment <br />APCD-SS-B1 <br />4300 Cherry Creek Drive South <br />Denver, CO 80246-1530 <br />Re: Self Certification for Air Quality Permit NO. 1OR01175F - Peabody Sage Creek Mine <br />Dear Mr. Ryder: <br />Peabody Sage Creek Mining, LLC, a subsidiary of Peabody Energy, operates the Peabody Sage Creek Mine <br />(PSCM). PSCM is a developing underground coal mine subject to State statues including Colorado's air quality <br />regulations. PSCM is currently permitted for Initial Approval (AI) under Air Quality Control Division (APCD) air <br />quality regulations and herby submits demonstration of compliance for AIR'S points 001 and 006. <br />PSCM has filed Notification of Startup for AIR's points 001, 002, 004 and 006. Coal mining operations were idled <br />at the end of September of 2012 and a Notice to Set Emissions to Zero was submitted for points 002 and 004, <br />prior to the self certification deadline. Points 001 and 006 were left active due to the remaining coal stockpile <br />and continued operation of the mine fan which will remain operational on a limited basis (110 CFM compared to <br />the allowable 400,000 CFM) per Mine Safety and Health Administration regulations <br />Observations for visual emissions were taken on 11/05/2012 for both 001 and 006 as a part of the self <br />certification requirement. PSCM now understands that opacity readings are generally not required for fugitive <br />dust emissions. PSCM has complied with the conditions set forth in the particulate emissions control plan and <br />continues tracking particulate emissions as specified in the IA permit. PSCM also understands that the APCD will <br />not issue a Final Approval permit until all emission sources are self certified. <br />Once you have had a chance to review the attached materials please feel free to contact me if you have any <br />questions or need any other information. <br />Sincerely, <br />Scott Cowman <br />Senior Environmental Specialist <br />Peabody Sage Creek Mining, LLC. <br />