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Page 10 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 [ CONTIN[JATfON - 6] <br />DETAILS OF EQUIPMENT /ACTIVITIES COVERED UNDER THIS FACILITY-WIDE PERMIT <br /> DESCRIPTION <br />NRS MNO?, MODEL, SM, DESIGN RATE, CAPACITY, DIMENSIONS, REMARKS <br />ID OPERATION RATE, CONSUMPTION, THROUGHPUT, PRODUCTION, SPECIFIC PROVISIONS <br /> EMISSION CONTROLS <br />143 SCREENING IN TRIPLE SCREEN PLANT: <br /> THREE (3) MAKE, MODEL, NJD SMs: NOT AVNLABLE, VIBRATMG <br /> SCREENS, EACH MEASURING 34' X 46 ",DESIGN RATES: RATE <br /> LIMITED BY FRONT END LOADER FEEDING. <br /> QUANTITY OF COAL SCREENED: SCREEN I: 500,000 TONS PER YENi, OVERALL CONTROL EFFICIENCY <br /> SCREEN 2: 415,000 TONS PER YEAR; SCREEN 3: 300,000 TONS PER FOR TSP NJD PM~o IS A MRJIMUM <br /> YEN2. OF 70.0 %. <br /> EMISSIONS OF PNLTICLILATE MATTER CONTROLLED BY PNiTIAL <br /> ENCLOSURES. <br />l44 LOAD-IN AND LOAD-0UT AT TRIPLE SCREEN PLANT: <br /> NUMBER OF TRNJSFER POINTS: 2 <br /> QUANTITY OF COAL HANDLED: 500,000 TONS PER YENi. <br /> OVERALL CONTROL EFFICIENCY <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED BY PARTW. FOR TSP AND PM~° IS A MMIMUM <br /> ENCLOSURES. OF 70.0%. <br />145 WASTE ROCK TRANSFERS: <br /> WASTE ROCK IS TRANSFERRED FROM BELT TO GROUND. <br /> QUNJTrI'Y OF WASTE ROCK HANDLED: 1,000,000 TONS PER YEAR. <br /> OVERALL COMROL EFFICIENCY <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED WITH SURFACE FOR TSP AND PMio IS A MMMMUM <br /> MOISTURE. OF 50.0 %. <br />146 WASTE ROCK STOCKPILE: <br /> EMISSIONS FROM STORAGE PILE. FUGITIVE DUST CONTROL PLAN <br /> AREA OF STOCKPILE: 0.2 ACRE. <br /> OVERALL COMROL EFFICIENCY <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED BY SURFACE FOR TSP AND PM~o IS A MMIMUM <br /> MOISTURE. OF 50.0 <br />149 LOADING AND UNLOADING OF LOW QUALITY COAL: <br /> FRONT END LOADERS ARE USED. FUGITIVE DUST CONTROL PLAN <br /> QUANTFFY OF CON. HANDLED: 500,000 TONS PER YEAR <br />152 \VASTE ROCK STOCKPILES: <br /> FUGITIVE DUST COMROL PLAN <br /> TOTAL AREA OF STOCKPILES: )S ACRES. <br /> OVERALL CONTROL EFFICIENCY <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED BY SURFACE FOR TSP AND PM~o IS A MOVIMUM <br /> MOISTURE. OF 50.0 %. <br />I53 ACTIVITIES ON \VASTE ROCK STOCKPILES: FUGITIVE DUST CONTROL PLAN <br /> TOTAL OPERATION RATE: 8,000 HOURS PER YEAR. OVERALL CONTROL EFFICIENCY <br /> FOR TSP ANp PM~° IS A MMIMUM <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED BY SURFACE OF 50.0 °/. <br /> A101STURE <br />ATTACHMENT A CONTINUED ..... <br />107/0009/999 <br />