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Aa- COLORADO <br />Air Pollution Control Division <br />Department of Public Health & Environmen <br />20. This permit is issued in reliance upon the accuracy and completeness of information supplied <br />by the applicant and is conditioned upon conduct of the activity, or construction, installation <br />and operation of the source, in accordance with this information and with representations <br />made by the applicant or applicant's agents. It is valid only for the equipment and operations <br />or activity(ies) specifically identified in this permit. If subsequent operations or testing at the <br />source indicate the information supplied to obtain this permit and relied upon in the creation <br />and issuance of this permit is inaccurate, the source must submit an application to modify the <br />permit to address the inaccuracy(ies). (Reference: Regulation Number 3, Part B III.E.) <br />By: <br />By: <br />Jonathan Brickey R K Hancock 111, P.E. <br />Permit Engineer Construction Permits Unit Supervisor <br />Permit History <br />Issuance <br />Date <br />Description <br />Issuance #8 - <br />Issued to Colowyo Coal Company, L. P. to make changes to <br />Final Approval <br />This <br />the explosives use blasting schedule and to make minor <br />Modification 7 <br />issuance <br />adjustments to the emission factors, production limit values <br />and emission limits. <br />Issued to Colowyo Coal Company, L. P. combines the <br />Issuance #7 - <br />permits 95MF1040 and 06RB1317. Permit 0611131317 is <br />Final Approval <br />January 17, <br />cancelled. Modification based on dust mitigation plan, <br />Modification 6 <br />2017 <br />reduction in blasting materials use. Increase in daily <br />explosives use limit from 76 tons per day to 350 tons per <br />day. Issue as Final Approval under 95MF1040. <br />95MF1040: <br />Administrative revisions to modify Condition 7 to conform <br />Issuance #6 - <br />to Attachment F demonstrating the gradual reduction in <br />Final Approval <br />extraction of coal to mine "End of Life". All emissions will <br />Modification <br />June 6, <br />also be gradually reduced until mining in the Moffat County, <br />0611131317: <br />2007 <br />ColoWyo Pit and all subsequent restoration, reclamation <br />Issuance #1 - <br />and revegetation has been completed. Coal processing <br />Initial Approval <br />emissions shall continue to be limited by this permit. <br />Overburden removal by 50 ton trucks deleted. <br />Issuance #5 - <br />September <br />Administrative revision to modify Condition 7 to provide for <br />Final Approval <br />20 2001 <br />average daily emissions to be calculated from the monthly <br />Modification <br />, <br />extraction amounts. <br />For emissions sources under AIRS ID: 023, use of atomizing <br />Issuance #4 <br />November <br />spray muzzles is not required under freezing conditions. <br />Final Approval <br />23, 1998 <br />Emission control for transfer from conveyor to stacking tube <br />and Modification <br />(Referenced in Attachment E) stands corrected to <br />baghouse. <br />Issuance #3 <br />(Not Issued) <br />Increasing speed limit for "In pit" haulage to 45 mph and <br />Modification <br />adding a reference to 190 and 240 Ton haulage trucks. <br />Issuance #2 - <br />March 09, <br />Pertained to use of enclosure for control of emissions from <br />Initial Approval <br />1998 <br />coal preparation -primary crusher house (AIRS ID: 022) <br />Modification <br />during November- April months. (Freezing conditions) <br />Issuance #1 <br />February 5, 1 <br />Pertained to cancellation of all previous permits. <br />COLORADO <br />&A Air Pollution Control Division <br />Page 10 of 22 <br />