40 CFR Part 60, Table 3 — Operating Parameters To Be Monitored and Minimum Measurement and Recording Frequencies
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
| Operating parameters to be monitored | Minimum frequency | Control system |
|---|---|---|
| Data measurement | Data recording | Dry scrubber followed by fabric filter | Wet scrubber | Dry scrubber followed by fabric filter and wet scrubber |
| Maximum operating parameters: | | | | | |
| Maximum charge rate | Continuous | 1 × hour | ✔ | ✔ | ✔ |
| Maximum fabric filter inlet temperature | Continuous | 1 × minute | ✔ | | ✔ |
| Maximum flue gas temperature | Continuous | 1 × minute | ✔ | ✔ | |
| Minimum operating parameters: | | | | | |
| Minimum secondary chamber temperature | Continuous | 1 × minute | ✔ | ✔ | ✔ |
| Minimum dioxin/furan sorbent flow rate | Hourly | 1 × hour | ✔ | | ✔ |
| Minimum HCI sorbent flow rate | Hourly | 1 × hour | ✔ | | ✔ |
| Minimum mercury (Hg) sorbent flow rate | Hourly | 1 × hour | ✔ | | ✔ |
| Minimum pressure drop across the wet scrubber or minimum horsepower or amperage to wet scrubber | Continuous | 1 × minute | | ✔ | ✔ |
| Minimum scrubber liquor flow rate | Continuous | 1 × minute | | ✔ | ✔ |
| Minimum scrubber liquor pH | Continuous | 1 × minute | | ✔ | ✔ |