Figure: 30 TAC §113.2174(e)

Table 5. Carbon Monoxide Emission Limits for Existing Small Municipal Waste Combustion Units
Municipal Waste Combustion Unit	Carbon Monoxide Limits^a	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

^aAll emission limits (except for opacity) are measured at 7 percent oxygen. Compliance is determined by continuous emission monitoring systems.

^bBlock averages, arithmetic mean. See §113.2100 of this title for definitions.

^c24-hour block average, geometric mean.