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e-CFR data is current as of November 23, 2020

Title 40Chapter ISubchapter CPart 60Subpart AAAA → Appendix


Title 40: Protection of Environment
PART 60—STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES (CONTINUED)
Subpart AAAA—Standards of Performance for Small Municipal Waste Combustion Units for Which Construction is Commenced After August 30, 1999 or for Which Modification or Reconstruction is Commenced After June 6, 2001


Table 1 to Subpart AAAA of Part 60—Emission Limits for New Small Municipal Waste Combustion Units

For the following pollutants You must meet the
following emission limitsa
Using the following
averaging times
And determine compliance by the following methods
1. Organics
Dioxins/Furans (total mass basis)13 nanograms per dry standard cubic meter3-run average (minimum run duration is 4 hours)Stack test.
2. Metals:
Cadmium0.020 milligrams per dry standard cubic meter3-run average (run duration specified in test method)Stack test.
Lead0.20 milligrams per dry standard cubic meter3-run average (run duration specified in test method)Stack test.
Mercury0.080 milligrams per dry standard cubic meter or 85 percent reduction of potential mercury emissions3-run average (run duration specified in test method)Stack test.
Opacity10 percentThirty 6-minute averagesStack test.
Particulate Matter24 milligrams per dry standard cubic meter3-run average (run duration specified in test method)Stack test.
3. Acid Gases:
Hydrogen Chloride25 parts per million by dry volume or 95 percent reduction of potential hydrogen chloride emissions3-run average (minimum run duration is 1 hour)Stack test
Nitrogen Oxides (Class I units)b150 (180 for 1st year of operation) parts per million by dry volume24-hour daily block arithmetic average concentrationContinuous emission monitoring system.
Nitrogen Oxides (Class II units)c500 parts per million by dry volumeSee footnotedSee footnoted
Sulfur Dioxide30 parts per million by dry volume or 80 percent reduction of potential sulfur dioxide emissions24-hour daily block geometric average concentration or percent reductionContinuous monitoring emission system.
4. Other:
Fugitive AshVisible emissions for no more than 5 percent of hourly observation periodThree 1-hour observation periodsVisible emission test.

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

bClass I units mean small municipal waste combustion units subject to this subpart that are located at municipal waste combustion plants with an aggregate plant combustion capacity more than 250 tons per day of municipal solid waste. See §60.1465 for definitions.

cClass II units mean small municipal waste combustion units subject to this subpart that are located at municipal waste combustion plants with an aggregate plant combustion capacity no more than 250 tons per day of municipal solid waste. See §60.1465 for definitions.

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

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