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Page 5 Colorado Department of Public Health and Environment <br />Construction Pertnit Air Pollution Control Division <br />TWENTYMII,E COAL COMPANY <br />Permit No. 93R01204 <br />Initial Approval -Modification-5 <br />ATTACHMENT A [CONTINUATION - 1] <br />DETAILS OF EQUIPMENT / ACTIVITIES COVERED f TNDER THIS FACII.iTY-WIDE PERMIT <br />• <br />• <br /> DESCRIPTION <br />AIRS MAKE, MODEL SM, DESIGN RATE, CAPACITY, DB~T1SiON5, ~ REMARKS <br />m OPERATION RATE, CONSUMPTION, THROUGHPUT, PRODUCTION, SPECIFIC PROVISIONS <br /> EMISSION CONTROLS <br />105 TRANSFER FROM RUN-OF-MINE COAL STOCKPILE TO RECLAIM <br /> BELT: <br /> TRANSFER OF COAL <br /> OVERALL CONTROL EFFICIENCY <br /> QUANTnY OF COAL TRANSFERRED: 10,000,000 TONS PER YEAR FOR TSP AND PM~e IS A MINIMUM OF <br /> 70 %. <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED BY PARTIALLY <br /> ENCLOSMG THE TRANSFER POBVT. <br />106 COAL STOCKPILES: <br /> RUN-0F-MME COAL STOCKPR-E No. 1 AT ROM Stack Tube 4.0 ACRES <br /> RUN-0F-MINE COAL STOCKPBE No. 2 AT Belt Out Back 7.0 ACRES FUGTINE DUST CONTROL PLAN <br /> STOKER COAL STOCKPBE No. 3 AT Load Out OS ACRE <br /> COAL STOCKPILE No. 4 AT WASH PLAM 0.2 ACRE <br /> PROCESSED COAL STOCKPII-E No. 3 AT Batchxeigh Loadout:4.0 ACRES <br /> LOW QUAIICY COAL STOCKPILE No. 6, AT Wesh Plan[ 3.0 ACRES <br /> TOTAL AREA OF ALL COAL STOCKPILES: 20.7 ACRES. OVERALL CONTROL EFFICIENCY <br /> FOR TSP AND PM„ IS A MINIMUM OF <br /> DUST CONTROL PLAN. SURFACE MOISTURE. 30 %. <br />107 TRANSFER OF WASTE ROCK FOR CONVEYING: <br /> WASTE ROCK TRANSFER <br /> QUANTITY OF WASTE ROCK TRANSFERRED: 1,000,000 TONS PER YEAR. OVERALL CONTROL EFFICIENCY <br /> FOR TSP AND PM,o 15 A MINIMUM OF <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED BY ENCLOSMG 90.0 %. <br /> THE TRANSFER POMT. <br />108 LOADING AND UNLOADING: <br /> WASTE ROCK LOADMG AT WASTE ROCK BELT, AND UNLOADMG AT <br /> PREPARATION PLANT OR REFUSE PR.E. FUGITIVE DUST COMROL PLAN <br /> LOADMG IS DONE SY FRONT END LOADER <br /> QUANTTIY OF WASTE ROCK HANDLED: 1,000,000 TONS PER YEAR <br />109 HAULAGE ON UNPAVED HAUL ROADS: THIS MCLUDES: <br /> HAUL OF WASTE ROCK <br /> HAULING OF WASTE ROCK BY 100 -TON, SIX -WHEELED TRUCKS. STOKER COAL TO STOCKPILE <br /> STOKER COAL TO RAIL LOADMG <br /> HAULING OF COAL BY 100-TON, SIX-WHEELED TRUCKS. LOW QLTY. COAL TO WASH PLM <br /> WASTE ROCK DIRECT HAUL <br /> TOTAL QUANTITY OF WASTE ROCK AND COA4 TOGETHER HAULED: HAUL Olff WASH PLANT WASTE <br /> 2,300,000 TONS PER YEAR- COAL FROM WASH PLANT TO <br /> STOCKPRE <br /> TOTAL VEHICLE-MBEs-TRAVELLED: 116193 PER YEAR FUGTItVE DUST CONTROL PLAN <br /> OVERAII, CONTROL EFFICIENCY <br /> EMISSIONS OF PARTICULATE MATTER COMROL.LED BY WATERMG FOR TSP AND PM„ IS A MMBv1UM OF <br /> AND CHEMICAL DUST SUPPRESSANTS. 83.0 %. <br />ATTACHMENT A' CONTINUED ...-. <br />107/0009/999 <br />