Model Rule—Carbon Monoxide Emission Limits for Existing Small Municipal Waste Combustion Units

For the following municipal waste combustion units You must meet the following carbon monoxide limits a Using the following averaging times b 1. Fluidized bed 100 parts per million by dry volume 4-hour. 2. Fluidized bed, mixed fuel, (wood/refuse-derived fuel) 200 parts per million by dry volume 24-hour c . 3. Mass burn rotary refractory 100 parts per million by dry volume 4-hour. 4. Mass burn rotary waterwall 250 parts per million by dry volume 24-hour. 5. Mass burn waterwall and refractory 100 parts per million by dry volume 4-hour. 6. Mixed fuel-fired, (pulverized coal/refuse-derived fuel) 150 parts per million by dry volume 4-hour. 7. Modular starved-air and excess air 50 parts per million by dry volume 4-hour. 8. Spreader stoker, mixed fuel-fired (coal/refuse-derived fuel) 200 parts per million by dry volume 24-hour daily. 9. Stoker, refuse-derived fuel 200 parts per million by dry volume 24-hour daily. a All emission limits (except for opacity) are measured at 7 percent oxygen. Compliance is determined by continuous emission monitoring systems. b Block averages, arithmetic mean. See § 60.1940 for definitions. c 24-hour block average, geometric mean.