EPA Air · violations by county and year
High-priority air violations in Middlesex County, Massachusetts, 2025
- 18Violations
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 tier below it. Each row below is one violation recorded against a source in Middlesex County, Massachusetts 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 Middlesex County facility page.
Middlesex County, Massachusetts, 2025
- Inspections 190
- Stack tests 13
High-priority air violations in Middlesex County, other years
High-priority air violations recorded in Middlesex County, Massachusetts, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-11-24 | REPLIMUNE INC — high-priority violation on file | Earliest FRV determination | State |
| 2025-11-24 | ABCAM INC — high-priority violation on file | Earliest FRV determination | State |
| 2025-10-30 | CAMBRIDGE BRANDS INC — high-priority violation on file | Earliest FRV determination | State |
| 2025-10-30 | HOLLINGSWORTH & VOSE | Earliest FRV determination | State |
| 2025-10-27 | GREATER BOSTON GASTROENTEROLOGY — high-priority violation on file | Earliest FRV determination | State |
| 2025-08-11 | WHITEHEAD INSTITUTE FOR BIOMEDICAL RESEARCH — high-priority violation on file | Earliest FRV determination | State |
| 2025-08-11 | ACTON METAL PROCESSING CORP — high-priority violation on file | Earliest FRV determination | State |
| 2025-08-04 | DENTSPLY IMPLANTS | Earliest FRV determination | State |
| 2025-07-25 | DESKTOP METAL — high-priority violation on file | Earliest FRV determination | State |
| 2025-07-25 | JG MACLELLAN CONCRETE CO | Earliest FRV determination | State |
| 2025-07-09 | MC ASSEMBLY | Earliest FRV determination | State |
| 2025-07-09 | FASTCAP SYSTEMS CORP DBA NANORAMIC LABS | Earliest FRV determination | State |
| 2025-05-12 | ADVANCED SURFACE TECHNOLOGY — high-priority violation on file | Earliest FRV determination | State |
| 2025-05-12 | SANCTUARY MEDICINALS INC — high-priority violation on file | Earliest FRV determination | State |
| 2025-04-29 | PROLERIZED NE COMPANY — high-priority violation on file | Earliest FRV determination | State |
| 2025-04-23 | PHOENIX TAILINGS | Earliest FRV determination | State |
| 2025-02-07 | MARLBOROUGH FOUNDRY | Earliest FRV determination | State |
| 2025-01-23 | SCHLUMBERGER TECHNOLOGY CORPORATION | Earliest FRV determination | State |
Dates as filed by the agency that recorded the violation. Figures from EPA’s ICIS-AIR download.