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5, <br />Page 2 Colorado Department of Public Health and Environment <br />Construction Permit Air Pollution Control Division <br />TWENTYMII.E COAL COMPANY <br />Permit No. 93R01204 <br />Initial Approval -Modification-5 <br />5. At all tunes, including periods of start-up, shutdown, and malfunction, the facility and control equipment shall, to the <br />extent practicable, be maintained and operated in a manner consistent with good av pollution prevention and control <br />practices for minimizing emissions. Determination of whether or not acceptable operating and maintenance procedures <br />are being used will be based on informazion available to the Division, which may include, but is not limited to, monitoring <br />results, opacity observations, review of operating and maintenance procedures, and inspection of the source. <br />6. Construction /Modification of the sources listed under AIRS POINT Ids: 158, 159, and I63, must commence within 18 <br />months of initial approval permit issuance or within l8 months of the start-up date stated in the application. if <br />commencement does not occur within the stated time the permit will expire on April 30, 1998. <br />(See General Condition No. 6., Item 1 on the reverse side of the fast page of this permit.) <br />7. The activities az tl»s facility shall be limited to maximum production /consumption /processing /operation /handling rates <br />as listed on Attachment A. Short term limits (per day) shall be annual limits divided by 143. Records of the actual rates, <br />and emissions of criteria and nontriteria reportable !hazardous a'v pollutants shall be maintained by the applicant and <br />made available to the Division for inspection upon request. Such records shall, at the minimum, contain the details given <br />in Attachment C. <br />8. FjnlsslOnS of air pollutants shall not exceed the following limitations (as calculated in the Division's preliminary analysis): <br />Particulate Matter :..................... 159.0 tore per year and 2,224 pounds per day <br />Particulate Matter < 10 µm (PM,~:......... 85.0 tons per year and 1, 189 pounds per day <br />Note 1: In addition, the above activities also emit the following fugitive dust, and these have been entered into the <br />Division's emission inventory system: <br />Particulate Matter -Fugitive: 319.0 toss per year and 4,448 pounds per day <br />Particulate Matter < LO µm (PM,~: 83.0 toss per year and 1,161 pounds per day <br />Note 2: The above emissions are based on emission factors and control efficiencies given in Attachment D. <br />Note 3: The permittee shall identify emissions of noncriteria reportable /hazardous a'u pollutants. If emissions of such <br />pollutants exceed the notification thresholds, Arr Pollutant Emission Notices shall be submitted within one (1) <br />month of the issuance of this permit <br />9. Compliance with annual limits shall be determined on a rolling twelve (12) month total. By the fiftcentlt day of each <br />month a new twelve month total shall be calculated using the previous twelve calendaz months' data. "Ilte permit holder <br />shall calculate monthly emissions and keep a compliance record on site for Division review. <br />10. Prior to final approval being issued, the applicant shall submit to the Division for approval a revised facility-wide <br />compliance plan and record keeping Cormat that will outline how the applicant will maintain on-going compliance with <br />the requirements of this permit. This includes the wntrol efficiencies specified in Attachment A. <br />l 1. The AIRS Point [d numbers (for examples, "AIRS lD: 103," shall be marked on the subject equipment for ease of <br />identification. <br />107/0009/999 <br />