| Reporting Hourly Data | Compliance Method (# of Units) | Monitoring Method | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Number of reporting units | Number of reporting facilities | Electrical Output | Heat Input | Sorbent Trap | CEMS | CEMS and Sorbent Trap | ||||
| Mercury | Reporting Hourly Data | 507 | 227 | Compliance Method (# of Units) | 154 | 353 | Monitoring Method | 219 | 232 | 56 |