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GCC Energy, LLC <br />Permit No. 09LP0202F <br />Final Approval — Modification 1 <br />Colorado Department of Public Health and Environment <br />Air Pollution Control Division <br />AIRS ID: 067/1103 Page 10 of 11 <br />DESCRIPTION <br />REMARKS <br />AIRS ID <br />MAKE, MODEL, S /N, DESIGN RATING, CAPACITY <br />SPECIFIC PROVISIONS <br />DIMENSIONS, CONSUMPTION, THROUGHPUT <br />Mine ventilation: King II only <br />004 <br />Operation based on.annual use: 8760 Hours /year <br />Emission factor PM: 4.96 Ibs /hour <br />Emission factor PM 10: 2.34 Ibs /hour <br />Emission factor PM2.5: 0.35 Ibs /hour <br />005 <br />Conveyor transfers: King 11 <br />Subject to NSPS, Y <br />Coal processed: 1,300,000 tons per year. <br />Emission factors from AP -42, Chapter 13.2.4, "Drop <br />Equation ". <br />Control efficiencies from Texas Commission on <br />Environmental Quality (TCEQ). <br />Emission factor PM: 7.34e -04 Ibs /ton. <br />Emission factor PM 10: 3.47e -04 Ibs /ton. <br />Emission factor PM2.5: 5.26e -05 Ibs /ton. <br />Conveyor transfer control efficiencies: <br />BC -1 onto Stockpile 1 = 50% (stackout tube); <br />Mined coal reclaim tunnel hoppers to BC -2 = 90 %; <br />Full enclosure <br />BC -2 to Screen 1 = 85 %; <br />Partial enclosure <br />Screen 1 drop to Crusher = 85 %; <br />Partial enclosure <br />BC -3 to BC -6 = 90 %; <br />Full enclosure except for <br />crushed coal transfer <br />Screen to BC -5, BC -5 to Lump Coal Pile = 0 %; <br />Screen to BC -4, BC -4 to Stoker Coal Pile = 0 %; <br />Crushed Coal Reclaim to BC -6; 90% <br />Full enclosures <br />006 <br />Screen: King I <br />Point cancelled <br />007 <br />Crusher and Screen: King I <br />Point cancelled <br />008 <br />Conveyor Transfers: King I <br />Point cancelled <br />009 <br />Coal Loadout: King I <br />Point Cancelled <br />AIRS ID: 067/1103 Page 10 of 11 <br />