EPA Air · stack tests by county and year
Air-emissions stack tests in Franklin County, Pennsylvania, 2025
- 5Stack 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 Franklin 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 Franklin County facility page.
Franklin County, Pennsylvania, 2025
Air-emissions stack tests in Franklin County, other years
What stands out
- Stack tests in Franklin County, Pennsylvania, rose from 3 in 2024, the previous year on file, to 5 in 2025.
- The county’s file for stack tests holds 10 years of events, from 2017 through 2026.
- Its 5 stack tests rank 38th of the 48 county cells in Pennsylvania for 2025.
- Its 5 stack tests are 0.5% of the 957 the state’s file holds for 2025.
Every line is computed by formula from the state’s stored file; nothing is estimated.
Air-emissions stack tests recorded in Franklin County, Pennsylvania, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-11-13 | EASTERN GAS TRANS & STORAGE/CHAMBERSBURG COMP STA | Pass | State |
| 2025-07-22 | US DEPT OF DEFENSE/LETTERKENNY ARMY DEPOT | Pass | State |
| 2025-05-29 | MARTINS FAMOUS PASTRY SHOPPE/CHAMBERSBURG | Pass | State |
| 2025-05-28 | COLUMBIA GAS TRANS CORP/GREENCASTLE | Pass | State |
| 2025-02-04 | BLUE RIDGE LDFL CO/BLUE RIDGE LDFL | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in Franklin county, PA, in 2025. It lists 5 stack tests recorded in 2025.