e-CFR Navigation Aids


Simple Search

Advanced Search

 — Boolean

 — Proximity


Search History

Search Tips


Latest Updates

User Info


Agency List

Incorporation By Reference

eCFR logo

Related Resources

Electronic Code of Federal Regulations

We invite you to try out our new beta eCFR site at https://ecfr.federalregister.gov. We have made big changes to make the eCFR easier to use. Be sure to leave feedback using the Feedback button on the bottom right of each page!

e-CFR data is current as of January 15, 2021

Title 40Chapter ISubchapter CPart 60Subpart MMMM → Appendix

Title 40: Protection of Environment
Subpart MMMM—Emission Guidelines and Compliance Times for Existing Sewage Sludge Incineration Units

Table 4 to Subpart MMMM of Part 60—Model Rule—Operating Parameters for Existing Sewage Sludge Incineration Unitsa

For these operating parametersYou must establish these operating limitsAnd monitor using these minimum frequencies
Data measurementData recordingbData averaging
period for
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 applicableNo applicableNot applicable.
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.
Temperature of the afterburner combustion chamberMinimum temperature of the afterburner combustion chamberContinuousEvery 15 minutes12-hour block.

aAs specified in §60.5190, you may use a continuous emissions monitoring system or continuous automated sampling system in lieu of establishing certain operating limits.

bThis 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.

Need assistance?