40 CFR Table 3 to Subpart Cb of Part 60: Table 3 to Subpart Cb of Part 60—Municipal Waste Combustor Operating Guidelines

Municipal waste combustor technology Carbon monoxide emissions levels (parts per million by volume) a Averaging time (hrs) b

Mass burn waterwall 100 4

Mass burn refractory 100 4

Mass burn rotary refractory 100 24

Mass burn rotary waterwall 250 24

Modular starved air 50 4

Modular excess air 50 4

Refuse-derived fuel stoker 200 24

Fluidized bed, mixed fuel (wood/refuse-derived fuel) 200 c 24

Bubbling fluidized bed combustor 100 4

Circulating fluidized bed combustor 100 4

Pulverized coal/refuse-derived fuel mixed fuel-fired combustor 150 4

Spreader stoker coal/refuse-derived fuel mixed fuel-fired combustor 200 24

Semi-suspension refuse-derived fuel-fired combustor/wet refuse-derived fuel process conversion 250 c 24

Spreader stoker fixed floor refuse-derived fuel-fired combustor/100 percent coal capable 250 c 24

a Measured at the combustor outlet in conjunction with a measurement of oxygen concentration, corrected to 7 percent oxygen, dry basis. Calculated as an arithmetic average.

b Averaging times are 4-hour or 24-hour block averages.

c 24-hour block average, geometric mean.