40 CFR Appendix Table 4 to Subpart BB of Part 63 - Table 4 to Subpart BB of Part 63—Operating Parameters, Operating Limits and Data Monitoring, Recordkeeping and Compliance Frequencies

For the operating parameter applicable to you, as specified in Table 3 . . .	You must establish the following operating limit during your performance test . . .	And you must monitor, record, and demonstrate continuous compliance using these minimum frequencies . . .
		Data measurement	Data recording	Data averaging period for compliance
Absorbers (Wet Scrubbers)
Influent liquid flow	Minimum inlet liquid flow	Continuous	Every 15 minutes	Daily.
Influent liquid flow rate and gas stream flow rate	Minimum influent liquid-to-gas ratio a	Continuous	Every 15 minutes	Daily.
For the operating parameter applicable to you, as specified in Table 3	You must establish the following operating limit	And you must monitor, record, and demonstrate continuous compliance using these minimum frequencies . . .
		Data measurement	Data recording	Data averaging period for compliance.
Pressure drop	Pressure drop range	Continuous	Every 15 minutes	Daily.
Sorbent Injection
Sorbent injection rate	Minimum injection rate	Continuous	Every 15 minutes	Daily.
Sorbent injection carrier gas flow rate	Minimum carrier gas flow rate	Continuous	Every 15 minutes	Daily.
Fabric Filters
Alarm time	Maximum alarm time is not established on a site-specific basis but is specified in § 63.605(f)(9)	Continuous	Each date and time of alarm start and stop	Maximum alarm time specified in § 63.605(f)(9).
Wet Electrostatic Precipitator
Secondary voltage	Secondary voltage range	Continuous	Every 15 minutes	Daily.

[82 FR 45201, Sept. 28, 2017]