EPA Air · stack tests by state, industry and year
Petroleum and coal products manufacturing (NAICS 3241): stack tests in Delaware, 2026
- 3Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2026 at a Delaware source whose primary industry code is NAICS 3241. A facility filing more than one industry code is counted under the first one on its record.
Petroleum and coal products manufacturing (NAICS 3241) in Delaware, other years
Other industries in Delaware, 2026
- Utilities (NAICS 2211) 55
- Professional, scientific and technical services (NAICS 5417) 9
- Chemical manufacturing (NAICS 3251) 6
Air-emissions stack tests recorded in Delaware, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-07-23 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pending | State |
| 2026-07-22 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pending | State |
| 2026-07-21 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pending | State |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.