StacksVerified U.S. regulatory reference

40 CFR Part 60, Table 2

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗

As stated in § 60.2916, you must comply with the following:

For these operating parametersYou must establish these operating limitsAnd monitoring using these minimum frequencies
Data measurementData recordingAveraging time
1. Charge rateMaximum charge ratePeriodic | For batch units, each batch. For continuous or intermittent units, every hour | Daily for batch units or units complying with § 60.2932(d). 3-hour rolling for continuous and intermittent units.a
2. Combustion temperatureMinimum combustion chamber operating temperatureContinuous | Every 15 minutes | 3-hour rolling.a
3. Pressure drop across the wet scrubber or amperage to wet scrubberMinimum pressure drop or amperageContinuous | Every 15 minutes | 3-hour rolling.a
4. Wet scrubber liquor flow rateMinimum flow rate at inlet to the scrubberContinuous | Every 15 minutes | 3-hour rolling.a
5. Wet scrubber liquor pHMinimum pH at scrubber outletContinuous | Every 15 minutes | 3-hour rolling.a
6. Dry scrubber sorbent injectionMinimum injection rate of each sorbentContinuous | Every 15 minutes | 3-hour rolling.a
7. Electrostatic precipitator secondary electric powerMinimum secondary electric power, calculated from the secondary voltage and secondary currentContinuous | Every 15 minutes | 3-hour rolling.a
8. Bag leak detection system alarm timeAlarm time <5 percent of the operating time during a 6-month periodContinuous | Each date and time of alarm start and stop | Calculate alarm time as specified in § 60.2916(f).
9. Waste profileThe amount of each waste category burned as a percentage of total waste burned on a mass basisPeriodic | For batch units, each batch. For continuous or intermittent units, every hour | Calendar quarter.

a Calculated each hour as the average of the previous 3 operating hours.

[90 FR 27953, June 30, 2025]