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Page 8 <br />Construction Permit <br />TWENTYMILE COAL COMPANY <br />Permit No. 93RO1204 <br />Initial Approval -Modification-5 <br />Colorado Department of Public Health and Environment <br />Air Pollution Control Division <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, PRODUCFION, SPECIFIC PROVISIONS <br /> EMISSION CONTROLS <br />123 ROCK DUST TRANSFER: CLOSED SYSTEM. <br /> THIS OPERATION PNEUMATICALLY TRANSFER ROCK DUST TO THE BM. <br /> QUANTITY OF ROCK DUST TRANSFERRED. 10,000 TONS PER YEAR <br />124 COAL LOADING: <br /> LOADBJG OF COAL MTO RAILCARS USMG FRONT END LOADERS. FUGITIVE DUST CONTROL PLAN <br /> QUANTITY OF COAL LOADED: 500,000 TONS PER YEAR. <br />126 TRANSFER POINTS IN COAL WASHING PLANT: <br /> NUMBER OF TRANSFER POMTS: 2 <br /> QUADITI'rY OF COAL TRANSFERREU~. 1,700,000 TONS PER YEAR. <br /> OVERALL CONTROL EFFICIENCY <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED BY ENCLOSOJG FOR TSP AND PMio IS A MNIMUM <br /> THE TRANSFER POINTS. OF 90.0%. <br />127 SCREENING IN COAL WASHING PLANT: <br /> ONE (I) MAKE, MODEL, AND SM: NOT AVAILABLE, VIBRATQJG SCREEN, <br /> MEASURING B' WIDE X 16' LONG, DESIGN-RATED AT J00 TONS PER <br /> HOUR. <br /> QUANTITY OF COAL SCREENED: 1,700,000 TONS PER YEAR. OVERALL CONTROL EFFICIENCY <br /> FOR TSP AND PM,o IS A MINIMUM <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED BY ENCLOSURES OF 90.0 %. <br /> AND WATER SPRAYS. <br />128 CRUSHING IN COAL WASHING PIANT: <br /> ONE (I) JEFFREY, MODEL, AND SM: NOT AVAILABLE, FLEX TOOTH COAL <br /> CRUSHER DESIGN-RATED AT 400 TONS PER HOUR <br /> QUAN-PITY OF COAL CRUSHED: 340,000 TONS PER YEAR <br /> OVERALL CONTROL EFFICIENCY <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED BY ENCLOSURES FOR TSP AND PM,o IS A MRJIMUM <br /> AND WATER SPRAYS. OF 90.0 %. <br />Ill TRANSFER POINT AT RECLAMATION - 1: <br /> TRANSFER PO[N[' FROM BATCH WEIGH 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 MRJIMUM <br /> EMISSIONS OF PARTICULATE MATFER CONTROLLED BY ENCLOSURES. OF 90.0%. <br />ATTACHMENT A CONTINUED ..... <br />107/0009/999 <br />