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Page 5 Colorado Department of Public Health and Environment <br />Construction Permit Air Pollution Control Division <br />TWENTYMILE COAL COMPANY <br />Permit No. 93R01204 <br />Initial Approval -Modification-5 <br />ATTACHMENT A [CONTINUATION - I ] <br />DETAILS OF EQUIPMENT /ACTIVITIES COVF.RF.D UNDER THIS FACILITY-WIDE. PERMIT <br /> DESCRIPTION <br />AIRS MAKE, MODEL, SIN, DESIGN RATE, CAPACRY, DIMENSIONS, REMARKS <br />ID OPERATION RATE, CONSUMPITON, 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 /> QUANTITY OP COAL TRANSFERRED: 10,000,000 TONS PER YEAR FOR TSP AND PM~° IS A MINIMUM OF <br /> 70 %. <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED 8Y PARTIALLY <br /> ENCLOSING THE TRANSFER POMT. <br />106 COAL STOCKPILES: <br /> RUN-0F-MINE COAL STOCKPILE No. I AT ROM Stack Tuhe 4.0 ACRES <br /> RUN-0F-MINE COAL STOCKPILE No. 2 AT Belt Out Back 7.0 ACRES FUGITIVE DUST CONFROL PLAN <br /> STOKER COAL STOCKPILE No. 7 AT Load Out O.S ACRE <br /> COAL STOCKPILE No. 4 AT WASH PLANT 0.2 ACRE <br /> PROCESSED COAL STOCKPILE No. SAT Batchweigh Loadou1:4.0 ACRES <br /> LOW QUALITY COAL STOCKPILE No. 6, AT Wash Pkml S.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. 50 %. <br />107 TRANSFER OF WASTE ROCK FOR CONVEYING: <br /> WASTE ROCK TRANSFER <br /> QUANTTY OF WASTE ROCK TRANSFERRED: 1,000,000 TONS PER YEAR OVERALL CONTROL EFFICIENCY <br /> FOR TSP AND PM„ IS A MINIMUM OF <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED BY ENCLOSING 90.0 °/. <br /> THE TRANSFER POINT. <br />108 LOADING AND UNLOADING: <br /> WASTE ROCK LOADING AT WASTE ROCK BELT, AND UNLOADING AT <br /> PREPARATION PLANT OR REFUSE PILE. FUGCRVE DUST CONTROL PLAN <br /> LOADING IS DONE BY FROM END LOADER. <br /> QUANTnY OF WASTE ROCK HANDLED: 1,000,000 TONS PER YEAR. <br />109 HAULAGE ON UNPAVED HAUL ROADS: THIS INCLUDES: <br /> HAUL OF W ASTE ROCK <br /> HAULING OF WASTE ROCK BY 100-TON, SIX-WHEELED TRUCKS. STOKER COAL TO STOCKPILE <br /> STOKER COAL TO RAIL LOADING <br /> HAULING OF COAL BY 100 -TON, SIX -WHEELED TRUCKS. LOW QLTY. COAL TO WASH PLNT <br /> WASTE ROCK DIRECT HAUL <br /> TOTAL QUANTITY OF WASTE ROCK AND COAL, TOGEINER HAULED: HAUL OUT WASH PLAM WASTE <br /> 2,700,000 TONS PER YEAR. COAL FROM WASH PLANT' TO <br /> STOCKPILE <br /> TOTAL VEHICLE-MILES-TRAVELLED: 116,293 PER YEAR. FUGITIVE DUST CONFROLPLRN <br /> OVERALL CONTROL EFFICIENCY <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED BY WATERING FOR TSP AND PM~° IS A MINIMUM OF <br /> AND CHEMICAL DUST SUPPRESSANTS. 85.0 Y. <br />ATTACHMENT A CONTINUED ..... <br />107/0009/999 <br />