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Table 4 to Subpart LLL of Part 62—Operating Parameters for Existing Sewage Sludge Incineration Units <sup>1</sup>

Operating Parameters for Existing Sewage Sludge Incineration Units <sup>1</sup>

  1. CFR
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  3. Title 40
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  5. Chapter I
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  7. Part 62
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  9. Subpart LLL
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  11. Subject Group Delegation of Authority
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  13. Appendix Table 4 to Subpart LLL of Part 62
CorpusDaily eCFR
Displayed edition2026-04-27
Last updated2026-04-27

Table 4 to Subpart LLL of Part 62—Operating Parameters for Existing Sewage Sludge Incineration Units 1

For these operating parametersYou must establish these operating limitsAnd monitor using these minimum frequencies
Data measurementData recording 2Data averaging period for compliance
All sewage sludge incineration units
Combustion chamber operating temperature (not required if afterburner temperature is monitored)Minimum combustion chamber operating temperature or afterburner temperatureContinuousEvery 15 minutes12-hour block.
Fugitive emissions from ash handlingSite-specific operating requirementsNot applicableNot applicableNot applicable.
Scrubber
Pressure drop across each wet scrubberMinimum pressure dropContinuousEvery 15 minutes12-hour block.
Scrubber liquid flow rateMinimum flow rateContinuousEvery 15 minutes12-hour block.
Scrubber liquid pHMinimum pHContinuousEvery 15 minutes3-hour block.
Fabric Filter
Alarm time of the bag leak detection system alarmMaximum alarm time of the bag leak detection system alarm (this operating limit is provided in § 60.4850 and is not established on a site-specific basis)
Electrostatic precipitator
Secondary voltage of the electrostatic precipitator collection platesMinimum power input to the electrostatic precipitator collection platesContinuousHourly12-hour block.
Secondary amperage of the electrostatic precipitator collection plates
Effluent water flow rate at the outlet of the electrostatic precipitatorMinimum effluent water flow rate at the outlet of the electrostatic precipitatorHourlyHourly12-hour block.
Activated carbon injection
Mercury sorbent injection rateMinimum mercury sorbent injection rateHourlyHourly12-hour block.
Dioxin/furan sorbent injection rateMinimum dioxin/furan sorbent injection rate.
Carrier gas flow rate or carrier gas pressure dropMinimum carrier gas flow rate or minimum carrier gas pressure dropContinuousEvery 15 minutes12-hour block.
Afterburner
Temperature of the afterburner combustion chamberMinimum temperature of the afterburner combustion chamberContinuousEvery 15 minutes12-hour block.
1 As specified in § 62.15985, you may use a continuous emissions monitoring system or continuous automated sampling system in lieu of establishing certain operating limits.
2 This recording time refers to the minimum frequency that the continuous monitor or other measuring device initially records data. For all data recorded every 15 minutes, you must calculate hourly arithmetic averages. For all parameters, you use hourly averages to calculate the 12-hour or 3-hour block average specified in this table for demonstrating compliance. You maintain records of 1-hour averages.