40 CFR Part 63, Table 4
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
| 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 averagingperiod forcompliance |
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 averagingperiod forcompliance. | ||
| 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]