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Page 8 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 -4] <br />DETAILS OF EQUIPMENT/ ACTIVITIES COVERED UNDER THIS FACILITY-WIDE PERMIT <br /> DESCRIPTION <br />AIRS MAKE, MODEL, SM, DESIGN RATE, CAPACITY, DIMENSIONS, REMARKS <br />ID OPERATION RATE,CONSUMPTION,THROUGHPUT, PRODUCTION, SPECIFIC PROVISIONS <br /> EMISSION CONTROLS <br />127 ROCK DUST TRANSFER: CLOSED SYSTEM. <br /> THIS OPERATION PNEUMATICALLY TRANSFER ROCK OUST TO THE BM. <br /> QUAMITY OF ROCK DUST TRANSFERRED: 10,000 TONS PER YEAR <br />124 COAL LOADING: <br /> LOADMG OF COAL RJTO RAILCARS USBVG FRONT END LOADERS. FUGITIVE DUST CONTROL PLAN <br /> QUANTITY OF COAL LOADED: 500,000 TONS PER YEAR. <br />126 TRANSFER POINTS IN COAL WASIIING PLANT: <br /> NUMBER OF TRANSFER PORJTS: 2 <br /> QUANTIrY OF COAL TRANSFERRED: 1,700,000 TONS PER YEAR. <br /> OVERALL CONTROL EFFICIENCY <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED BY ENCLOSMG FOR TSP AND PM~o IS A MRJIMUM <br /> THE TRANSFER POBVTS. OF 90.0 %. <br />I27 SCREENING IN COAL WASHING PLANT: <br /> ONE (1) MAKE, MODEL, AND SM: NOT AVAILABLE, VIBRATBJG SCREEN, <br /> MEASURBJG 8' WIDE X 16' LONG, DESIGN-RATED AT 700 TONS PER <br /> HOUR. <br /> QUANTITY OF COAL SCREENED: 1,700,000 TONS PER YEAR. OVERALL COMROL EFFICIENCY <br /> FOR TSP AND PM,o IS A MNIMUM <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED BY ENCLOSURES OF 90.0 %. <br /> AND WATER SPRAYS. <br />128 CRUSHING IN COAL WASHING PLANT: <br /> ONE (I) JEFFREY, MODE4 AND SM: NOT AVAILABLE, FLEX TOOTH COAL <br /> CRUSHER DESIGN-RATED AT 400 TONS PER HOUR. <br /> QUANTTTY OF COAL CRUSHED: 740,000 TONS PER YEAR. <br /> OVERALL CONTROL EFFICIENCY <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED BY ENCLOSURES FOR TSP AND PM,o IS A MINIMUM <br /> AND WATER SPRAYS. OF 90.0%. <br />Il I TRANSFER POINT AT RECLAMATION - I: <br /> TRANSFER POIM' FROM BATCH W EIGH PILE TO RECLAIM BELT. <br /> QUANTITY OF COAL TRANSFERRED: 10,000,000 TONS PER YEAR. OVERALL CONTROL EFFICIENCY <br /> FOR TSP AND PM,o IS A MNIMUM <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED B\' ENCLOSURES. OF 90.0 %. <br />ATTACHMENT A CONTINUED ..... <br />107/0009/999 <br />