EPA Air · stack tests by county and year
Air-emissions stack tests in Dauphin County, Pennsylvania, 2025
- 10Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Dauphin County, Pennsylvania 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 Dauphin County facility page.
Dauphin County, Pennsylvania, 2025
Air-emissions stack tests in Dauphin County, other years
Air-emissions stack tests recorded in Dauphin County, Pennsylvania, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-17 | LANCASTER CNTY SWMA/SUSQ RESOURCE MGMT COMPLEX — high-priority violation on file | Pending | State |
| 2025-12-17 | DERRY TWP MUNI AUTH/CLEARWATER RD | Pass | State |
| 2025-11-12 | LANCASTER CNTY SWMA/SUSQ RESOURCE MGMT COMPLEX — high-priority violation on file | Pass | State |
| 2025-08-19 | HERSHEY CO/WWTP | Pass | State |
| 2025-07-18 | PA STATE UNIV/MILTON S HERSHEY MED CTR | Pass | State |
| 2025-07-08 | TEXAS EASTERN TRANS LP/GRANTVILLE | Pass | State |
| 2025-05-28 | LANCASTER CNTY SWMA/SUSQ RESOURCE MGMT COMPLEX — high-priority violation on file | Fail | State |
| 2025-03-23 | CLEVELAND CLIFFS STEELTON LLC/STEELTON | Pass | State |
| 2025-02-12 | ENERGY CTR HBG LLC/ENERGY CTR PAXTON LLC | Pass | State |
| 2025-01-29 | TEXAS EASTERN TRANS LP/GRANTVILLE | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.