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i~ TAB 22 AIR QUALITY CONTROL PLAN Air Quality Control Plan Air emission modeling (see Appendix 22-1A) indicate the Hayden Gulch Loadout will be a minor source of particulate emissions, both total suspended particulates (TSP) and particulate matter with an aerodynamic diameter of less than 10 microns (PMIO). PMio emissions are predicted to be greater than 15 tons per year, consequently air quality modeling was used to demonstrate compliance with the National Air 4uality Standards (NAAQS) of 150 Ng/m' (29-hour average) and 50 Ng/m3 (annual average) for PMio. TSP no longer is regulated via ambient air quality standards. The following discussion outlines the measures Hayden Gulch Terminal, Inc. will utilize to control the air pollutant emissions at the loadout facility. The control measures will be conducted throughout the life of the facility in accordance with the terms and conditions set forth in the Air Emission Permit (see Appendix 22-18) issued by the Air Pollution Control Division (APCD) of the Colorado Department of Public Health and Environment (CDPHE). Coal will be delivered to the Loadout facility via railcar, stored and loaded into haul trucks for market delivery to an off-site customer. All air emission sources at the Loadout facility will be fugitive, and no processing of coal (e.g., crushing) will occur. Coal will arrive at the Loadout facility in bottom dump railcars, which will reduce coal drop height. The railcar unloading hopper will be enclosed in a metal fabricated building, and a barrier such as AirCurtain'*, or equivalent, installed at each end of the building. The use of bottom dump railcars and an enclosed unloading structure will minimize emissions during the unloading process. All transfer points (hopper and conveying units) will be controlled with the FOGJetTM system, or equivalent. This system atomizes water droplets which bind with coal dust particles, causing them to precipitate rather then become MR-13 1 Revised 09/05