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17. 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 />4-� <br />By: By: FOR: <br />Jonathan Brickey, P.E. R K Hancock III, P.E. <br />Permit Engineer Construction Permits Unit Supervisor <br />Permit History <br />Action <br />Date <br />Description <br />Consolidated permit issued to replace all the permits issued <br />IA <br />September 27, <br />earlier for various equipment / activities. Some additional <br />1994 <br />equipment / activities also included. Permit issued to Cyprus <br />Yampa Valley Coal Corporation. <br />Closure of stockpile referenced under AIRS ID: 007. Addition of <br />Febr <br />February 6, <br />Febr <br />stockpile -conveyor / transfer point to AIRS ID: 014. Addition of <br />IA Modification -1 <br />1996 <br />inclined grizzly on run -of -mine coal receiving hopper to AIRS <br />ID: 018. Addition of run -of -mine coal sweep sampler / sample <br />preparation / transfer system under AIRS ID: 025. <br />IA Modification -2 <br />May 28, 1996 <br />Increase in throughput at the coal washing plant. <br />October 30, <br />Federally enforceable permit conditions. Public comment <br />IA Modification -3 <br />1996 <br />conducted. Emission sources re -grouped based on similarities <br />of operation / emission factors. <br />Transfer of ownership from Cyprus Yampa Valley Coal <br />lA Modification -4 <br />March 3, 1997 <br />Corporation to Twentymile Coal Company. No changes in <br />operation / process. <br />September 29, <br />Incorporation of AIRS ID: 164. This emission point was <br />IA Modification -5 <br />1997 <br />previously APEN exempt. That exemption (97RO0110) <br />canceled. <br />Discontinuance of activities referenced under AIRS IDs: 142, <br />143, 144, 161, and 164. New activities referenced under AIRS <br />IA Modification -6 <br />August 10 <br />IDs: 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, and 175. <br />1999 <br />Alternative operating scenarios will be used. To establish <br />permit limits, highest of the emission from various activities <br />have been considered. <br />Discontinuance of activities referenced under AIRS IDs: 128, <br />165, 166, 167, 168, 169, and 173. New activities referenced <br />IA Modification -7 <br />April 10, 2001 <br />under AIRS IDs: 176 and 177 are added; throughput limits of <br />several activities have been changed (some increases and some <br />decreases). Emission calculations are based on revised <br />emission factors from AP -42 (911998 and 1011998). <br />March 22, <br />List of the actual equipment installed; throughputs of several <br />FA Modification -8 <br />2004 <br />activities changed; some activities discontinued and some <br />reactivated; processed as a Final Approval. <br />�� <br />I C 0 L 0 R A D 0 <br />Air Pollution Control Division <br />9eoarMn t of Rubbc loath 6 Envirorv*ent <br />Page 8 of 26 <br />