40 CFR Part 62, 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 ↗
| Operatingparametersto bemonitored | Minimum frequency | HMIWI |
|---|---|---|
| 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]