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e-CFR data is current as of November 30, 2020

Title 40Chapter ISubchapter CPart 60Subpart BBBB → Appendix


Title 40: Protection of Environment
PART 60—STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES (CONTINUED)
Subpart BBBB—Emission Guidelines and Compliance Times for Small Municipal Waste Combustion Units Constructed on or Before August 30, 1999


Table 4 to Subpart BBBB of Part 60—Model Rule—Class II Emission Limits for Existing Small Municipal Waste Combustion Unita

For the following pollutants You must meet the following emission following determine limitsb Using the following averaging times And determine compliance by the following methods
1. Organics:
Dioxins/Furans (total mass basis)125 nanorgrams per dry standard cubic meter3-run average (minimum run duration is 4 hours)Stack test.
2. Metals:
Cadmium0.10 milligrams per dry standard cubic meter3-run average (run duration specified in test method)Stack test.
Lead1.6 milligrams per dry standard cubic meter3-run average (run duration specified in test method)Stack test.
Mercury0.080 milligrams per dry standard cubic meter3-run average (run duration specified in test method)Stack test.
  85 percent reduction of potential mercury emissions
Opacity10 percentThirty 6-minute averageStack test.
Particulate Matter70 milligrams per dry standard cubic meter3-run average (run duration specified in test method)Stack test.
3. Acid Gases:
Hydrogen Chloride250 parts per million by volume -or-3-run average (minimum run duration is 1 hour)Stack test.
  50 percent reduction of potential hydrogen chloride emissions
Sulfur Dioxide77 parts per million by dry volume -or-
50 percent reduction of potential sulfur dioxides emissions
24-hour daily block geometric average concentration -or- percent reductionContinuous emission monitoring system.
4. Other:
Fugitive AshVisible emissions for no more than 5 percent of hourly observation periodThree 1-hour observation periodsVisible emission test.

aClass II units mean all small municipal combustion units subject to this subpart that are located at municipal waste combustion plants with aggregate plant combustion capacity less than or equal to 250 tons per day of municipal solid waste. See §60.1940 for definitions.

bAll emission limits (except for opacity) are measured at 7 percent oxygen.

cNo monitoring, testing, recordkeeping or reporting is required to demonstrate compliance with the nitrogen oxides limit for Class II units.

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