2017-11-01_GENERAL DOCUMENTS - C1980007

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The Division has further determined that at a level of 90,909,000alg lons per year of diesel and 165,300 gallons per year of gasoline usage uncontrolled emissions from these emission points would equal two tons per year each. At this level an APEN would then be required. The source has not increased throughput such that they approach the extremely high limits (underlined above) which would nullify this Exemption Letter. Therefore, the source is in compliance and this point shall remain APEN Exempt. Permit Number 09GU1382 — Underground coal mining and processing equipment, as described in Attachment A of the permit. The Initial Approval version of this permit was issued on June 18, 2010. This initial approval permit combined previous individual equipment permits and included Initial Approval requirements for the proposed coal prep plant. The source completed all Initial Approval requirements (i.e. Conditions 1 through 3) prior to the 2012 inspection. The Final Approval authorization letter for this permit was issued on 3/11/2016 (not in effect at the time of the 2015 inspection). Within one hundred and eighty days (l 80) after commencement of operation, compliance with the conditions contained on this permit shall be demonstrated to the Division. It is the permittee's responsibility to self certify compliance with the conditions. Failure to demonstrate compliance within 180 days may result in revocation of the permit. (Information on how to certify compliance was mailed with the permit.) The source submitted all required self -certification documents on 12/14/2010, within 180 days after commencement of operation of equipment which had been installed up to that point. Further self - certification documents were later submitted on 8/29/2011 following the installation of the prep plant crusher. The source followed all requirements of self -certification appropriately and is in compliance with this condition. 2. This permit shall expire if the owner or operator of the source for which this permit was issued: (i) does not commence construction/modification or operation of this source within 18 months after either the date of issuance of this initial approval permit or the date on which such construction or activity was scheduled to commence as set forth in the permit application associated with this permit; (ii) discontinues construction for a period of eighteen months or more; or (iii) does not complete construction within a reasonable time of the estimated completion date (See General Condition No. 6., Item 1.). Upon a showing of good cause by the permittee, the Division may grant extensions of the permit. (Reference: Regulation No. 3, Part B, Section III.F.4.) The source constructed the prep plant and began operation within the time periods required following the issuance of this permit. According to the submitted `Notice of Startup', the prep plant began operation on 9/24/2010. Source is in compliance. Within one hundred and eighty days (180) after commencement of operation, the applicant shall submit to the Division for approval an operating and maintenance plan for all control equipment and control practices, and a proposed record keeping format that will outline how the applicant will maintain compliance on an ongoing basis with the requirements of condition no.7 listed below. The operating and maintenance plan shall commence at startup. (Reference: Regulation No. 3, Part B, Section III.G.7.) The Division received and approved the source's updated O&M plan on 8/25/2011 and 10/14/2011 respectively. The original O&M Plan was received within 180 days after permit issuance 2015 Inspection t31 0510015-INSP-2015 Page 9 of 37