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Page 11 <br />Construction Permit <br />TWENTYMILE COAL COMPANY <br />Permit No. 93R01204 <br />Initial Approval -Modification-5 <br />Colorado Department of Public Health and Environment <br />Air Pollution Control Division <br />ATTACHMENT A (CONTINUATION - 7] <br />DETAILS OF EOU)PMENT /ACTIVITIES COVERED UNDER THiS FACILITY-WIDE PERMIT <br /> DescRlPnoN <br />AIRS MAKE, MODEL, SM, DESIGN RATE, CAPACnY, DIMENSIONS, REMARKS <br />ID' OPERATION RATE,CONSUMPI'ION,THROUGHPUT, PRODUCTION, SPECIFIC PROVISIONS <br /> EMISSION CONTROLS <br />158 TRANSFER OF COAL AT BATCH WELCH STATIONS: <br /> TO BE CONSTRUCTED <br /> NUMBER OF TRANSFER POINTS: 3. <br /> QUANTnV OF COAL TRANSFERRED: 89,700 TONS PER YEAR OVERALL CONTROL EFFICIENCY <br /> FOR TSP AND PM,° IS A MMIMUM <br /> EMISSIONS OF PARTICULATE MATTER CONTROLLED BY ENCLOSURES. OF 80.0 °/,. <br />159 TRANSFER OF COAL AT CRUSHER HOUSE BATCR WEIGH STATION: <br /> TO BE CONSTRUCTED. <br /> NUMBER OF TRANSFER POINTS: I. <br /> QUANTITY OF COAL. HANDLED: 5, 118 TONS PER YEAR. OVERALL CONTROL EFFICIENCY <br /> FOR TSP AND PM,° IS A MMIMUM <br /> EM]SSIONS OF PARTICULATE MATTER CONTROLLED BY ENCLOSURES. OF 80.0 %. <br />161 LOADING OF WASTE ROCK FOR HAULAGE OFF-SITE: <br /> FRONT END LOADERS ARE USED FOR LOADMG WASTE ROCK MTO FUGITIVE DUST CONTROL PLAN <br /> HAULAGE TRUCKS. <br /> QUANTFTY OF WASTE ROCK HANDLED: 250,000 TONS PER YEAR. OVERALL CONTROL EFFICIENCY <br /> FOR TSP AND PM,° IS A MMIMUM <br /> EMISSIONS OF PARTICULATE MATTER COMROLLED BY SURFACE OF 50.0 %. <br /> MOISTURE. <br />162 VENT SNA FT HEATER: <br /> ONE (1) MAKE, MODEL, AND SM: NOT AVAILABLE, LIQUIFIED TO BE CONSTRUCTED. <br /> PETROLEUM GAS (LPG) FIRED HEATER, DESIGN-RATED AT 2,300,000 BTU EXEMPT FROM NOTIFICATION. <br /> PER HOUR <br /> LPG CONSUMPTION: 80,000 GALLONS PER YEAR <br />163 RECLAMATION OF LOW OUALFFY COAL ONTO MOBILE HOPPER- <br /> CONVEYOR: <br /> A FRONT END LOADERS ARE USED. THE HOPPERLONVEYOR IS ~ TO BE CONSTRUCTED. <br /> MOVED/EXTENDED TO MMIMIZE THE MOVEMENT OF FRONT END <br /> LOADERS. FUGITIVE DUST CONTROL PLAN. <br /> QUANTITY OF COAL RECLAIMED: 3,000,OOOTONS PER YEAR <br />164 FLYASH /CEMENT CONCRETE HANDLING AND MIXING: <br /> NAKE, MODEL, AND SM: NOT AVAILABLE, FLYASWC£MENT CONCRETE CONTROL EFFICIENCY FOR <br /> MIXING PLANT. EMISSIONS CONTROLLED BY BAGHOUSE PM-10: MMIMUM OF 99.0 °/. <br /> HAULMG AND HANDLMG OF MATERL4LS. <br /> THROUGHPUT LIMIT: 31,750 TONS PER YEAR <br />END OF ATTACHMENT A <br />107/0009/999 <br />