Code of Federal Regulations > Title 40 > Chapter I > Part 62 > Subpart HHH > Appendix - Table 3 to Subpart HHH of Part 62—Operating Parameters To Be Monitored and Minimum Measurement and Recording Frequencies

Regulations last checked for updates: Oct 02, 2026

Title 40 - Protection of Environment last revised: Sep 29, 2026

Appendix - Table 3 to Subpart HHH of Part 62—Operating Parameters To Be Monitored and Minimum Measurement and Recording Frequencies

Operating parameters to be monitored	Minimum frequency		HMIWI
Operating parameters to be monitored	Data measurement	Data recording	HMIWI with combustion control only	HMIWI with dry scrubber followed by FF	HMIWI with wet scrubber	HMIWI with dry scrubber followed by FF and wet scrubber	HMIWI with SNCR system
Maximum operating parameters:
Maximum charge rate	Once per charge	Once per charge	✓	✓	✓	✓	✓
Maximum FF inlet temperature	Continuous	Once per minute		✓		✓
Maximum flue gas temperature	Continuous	Once per minute			✓	✓
Minimum operating parameters:
Minimum secondary chamber temperature	Continuous	Once per minute	✓	✓	✓	✓	✓
Minimum dioxin/furan sorbent flow rate	Hourly	Once per hour		✓		✓
Minimum HCl sorbent flow rate	Hourly	Once per hour		✓		✓
Minimum mercury (Hg) sorbent flow rate	Hourly	Once per hour		✓		✓
Minimum pressure drop across the wet scrubber or minimum horsepower or amperage to wet scrubber	Continuous	Once per minute			✓	✓
Minimum scrubber liquor flow rate	Continuous	Once per minute			✓	✓
Minimum scrubber liquor pH	Continuous	Once per minute			✓	✓
Minimum reagent flow rate	Hourly	Once per hour					✓

[78 FR 28076, May 13, 2013]

authority: 42 U.S.C. 7401