Regulations last checked for updates: Oct 18, 2024

Title 40 - Protection of Environment last revised: Oct 16, 2024
Appendix - Table 3 to Subpart NNNa of Part 60—Operating Parameters, Operating Parameter Limits and Data Monitoring, Recordkeeping and Compliance Frequencies
For the
operating
parameter
applicable to
you, as
specified
in table 2
You must
establish
the following
operating
parameter
limit . . .
And you must monitor, record, and demonstrate continuous
compliance using these minimum frequencies . . .
Data measurement Data
recording
Data
averaging
period for compliance
Absorbers
1. Exit temperature of the absorbing liquidMaximum temperatureContinuousEvery 15 minutes3-hour block average.
2. Exit specific gravityExit specific gravity rangeContinuousEvery 15 minutes3-hour block average.
Boilers or process heaters
(with a design heat input capacity <44MW and vent stream is not introduced with or as the primary fuel)
3. Firebox temperatureMinimum firebox temperatureContinuousEvery 15 minutes3-hour block average.
Catalytic incinerators
4. Temperature in gas stream immediately before the catalyst bedMinimum temperatureContinuousEvery 15 minutes3-hour block average.
5. Temperature difference between the catalyst bed inlet and the catalyst bed outletMinimum temperature differenceContinuousEvery 15 minutes3-hour block average.
Carbon adsorbers
6. Total regeneration stream mass flow during carbon bed regeneration cycle(s)Minimum mass flow during carbon bed regeneration cycle(s)Continuously during regenerationEvery 15 minutes during regeneration cycleTotal flow for each regeneration cycle.
7. Total regeneration stream volumetric flow during carbon bed regeneration cycle(s)Minimum volumetric flow during carbon bed regeneration cycle(s)Continuously during regenerationEvery 15 minutes during regeneration cycleTotal flow for each regeneration cycle.
8. Temperature of the carbon bed after regeneration [and within 15 minutes of completing any cooling cycle(s)]Maximum temperature of the carbon bed after regenerationContinuously during regeneration and for 15 minutes after completing any cooling cycle(s)Every 15 minutes during regeneration cycle (including any cooling cycle)Average of regeneration cycle.
9. BreakthroughAs defined in § 60.661aAs required by § 60.663a(a)(6)(iii)(B)Each monitoring eventN/A.
Condensers
10. Exit (product side) temperatureMaximum temperatureContinuousEvery 15 minutes3-hour block average.
Scrubbers for halogenated vent streams
11. pH of scrubber effluentMinimum pHContinuousEvery 15 minutes3-hour block average.
12. Influent liquid flowMinimum inlet liquid flowContinuousEvery 15 minutes3-hour block average.
13. Influent liquid flow rate and gas stream flow rateMinimum influent liquid-to-gas ratioContinuousEvery 15 minutes3-hour block average.
Thermal incinerators
14. Firebox temperatureMinimum firebox temperatureContinuousEvery 15 minutes3-hour block average.
Control devices other than an incinerator, boiler, process heater, or flare; or recovery devices other than an absorber, condenser, or carbon adsorber
15. As specified by the Administrator15. As specified by the Administrator15. As specified by the Administrator15. As specified by the Administrator15. As specified by the Administrator.
authority: 42 U.S.C. 7401
source: 36 FR 24877, Dec. 23, 1971, unless otherwise noted.