EPA Air · violations by county and year
High-priority air violations in Mercer County, New Jersey, 2025
- 12Violations
A high-priority violation is the most serious class of Clean Air Act non-compliance an agency records against a source; a federally reportable violation is the next step down in severity. Each row below is one violation recorded against a source in Mercer County, New Jersey during 2025. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Mercer County facility page.
Mercer County, New Jersey, 2025
- Inspections 12
High-priority air violations in Mercer County, other years
High-priority air violations recorded in Mercer County, New Jersey, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-10-09 | TRUSTEES OF PRINCETON UNIVERSITY — high-priority violation on file | Earliest FRV determination | State |
| 2025-10-06 | SHRIJI POLYMERS LLC — high-priority violation on file | Earliest FRV determination | State |
| 2025-10-02 | NRG HEADQUARTERS DG — high-priority violation on file | Earliest FRV determination | State |
| 2025-10-02 | NRG HEADQUARTERS DG — high-priority violation on file | Earliest FRV determination | State |
| 2025-09-03 | RIDER UNIVERSITY | Earliest FRV determination | State |
| 2025-09-03 | RIDER UNIVERSITY | Earliest FRV determination | State |
| 2025-07-10 | TRAP ROCK INDUSTRIES PENNINGTON PLNT | Earliest FRV determination | State |
| 2025-04-15 | NJDHS TRENTON PSYCHIATRIC HOSPITAL | Earliest FRV determination | State |
| 2025-04-14 | CUSTOM ESSENCE LLC | Earliest FRV determination | State |
| 2025-04-02 | EDUCATIONAL TESTING SERVICE | Earliest FRV determination | State |
| 2025-03-14 | NJDHS TRENTON PSYCHIATRIC HOSPITAL | Earliest FRV determination | State |
| 2025-03-03 | RALPH CLAYTON & SONS INC | Earliest FRV determination | State |
Dates as filed by the agency that recorded the violation. Figures from EPA’s ICIS-AIR download.