40 CFR Table 2
Model Rule—Class I Emission Limits for Existing Small Municipal Waste Combustion Units
June 9, 2020
Open Table
| For the following pollutants | You must meet the following emission limitsb | Using the following averaging times | And determine compliance by the following methods |
|---|---|---|---|
| 1. Organics: | |||
| Dioxins/Furans (total mass basis) | 30 nanograms per dry standard cubic meter for municipal waste combustion units that do not employ an electrostatic precipitator-based emission control system -or- | 3-run average (minimum run duration is 4 hours) | Stack test. |
| 60 nanograms per dry standard cubic meter for municipal waste combustion units that employ an electrostatic precipitator-based emission control system | |||
| 2. Metals: | |||
| Cadmium | 0.040 milligrams per dry standard cubic meter | 3-run average (run duration specified in test method) | Stack test. |
| Lead | 0.490 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 averages | Stack test. |
| Particulate Matter | 27 milligrams per dry standard cubic meter | 3-run average (run duration specified in test method) | Stack test. |
| 3. Acid Gases: | |||
| Hydrogen Chloride | 31 parts per million by dry volume 95 percent reduction of potential hydrogen chloride emissions | 3-run average (minimum run duration is 1 hour) | Stack test. |
| Sulfur Dioxide | 31 parts per million by dry volume 75 percent reduction of potential sulfur dioxide emissions | 24-hour daily block geometric average concentration percent reduction | Continuous emission monitoring system. |
| 4. Other: | |||
| Fugitive Ash | Visible emissions for no more than 5 percent of hourly observation period | Three 1-hour observation periods | Visible emission test. |
aClass 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 greater than 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.
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