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Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 60, Subpt. BBBB, Tbl. 4 Table 4 to Subpart BBBB of Part 60—Model Rule—Class II Emission Limits for Existing Small Municipal Waste Combustion Unit  a]

Current as of January 02, 2025 | Updated by Findlaw Staff

 a

 Class 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.

For the following pollutants

You must meet the following emission following determine limits b

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 meter

3-run average (minimum run duration is 4 hours)

Stack test.

2. Metals:

Cadmium

0.10 milligrams per dry standard cubic meter

3-run average (run duration specified in test method)

Stack test.

Lead

1.6 milligrams per dry standard cubic meter

3-run average (run duration specified in test method)

Stack test.

Mercury

0.080 milligrams per dry standard cubic meter

3-run average (run duration specified in test method)

Stack test.

85 percent reduction of potential mercury emissions

Opacity

10 percent

Thirty 6-minute average

Stack test.

Particulate Matter

70 milligrams per dry standard cubic meter

3-run average (run duration specified in test method)

Stack test.

3. Acid Gases:

Hydrogen Chloride

250 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 Dioxide

77 parts per million by dry volume -or-

24-hour daily block geometric average concentration -or- percent reduction

Continuous emission monitoring system.

50 percent reduction of potential sulfur dioxides emissions

4. Other:

Fugitive Ash

Visible emissions for no more than 5 percent of hourly observation period

Three 1-hour observation periods

Visible emission test.

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

c No monitoring, testing, recordkeeping or reporting is required to demonstrate compliance with the nitrogen oxides limit for Class II units.

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Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 60, Subpt. BBBB, Tbl. 4 Table 4 to Subpart BBBB of Part 60—Model Rule—Class II Emission Limits for Existing Small Municipal Waste Combustion Unit  a] - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-pt-40-60-subpt-bbbb-tbl-4/

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