EPA Air · stack tests by county and year
Air-emissions stack tests in Jefferson County, Pennsylvania, 2026
- 7Stack 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 Jefferson County, Pennsylvania during 2026. 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 Jefferson County facility page.
Jefferson County, Pennsylvania, 2026
Air-emissions stack tests in Jefferson County, other years
Air-emissions stack tests recorded in Jefferson County, Pennsylvania, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-08-31 | COLUMBIA GAS TRANS LLC/IOWA COMP STA | Pass | State |
| 2026-08-26 | EASTERN GAS TRANS & STORAGE/PUNXSUTAWNEY | Pass | State |
| 2026-08-04 | SNYDER BROS INC/HIMES COMP STA | Pass | State |
| 2026-06-25 | O-I GLASS INC/OWENS BROCKWAY GLASS CONTAINER PLT 19 | Pass | State |
| 2026-02-16 | DIVERSIFIED PROD LLC/PINE CREEK COMP STA | Pass | State |
| 2026-02-09 | DIVERSIFIED PROD LLC/BROOKVILLE SOUTH COMP STA | Pass | State |
| 2026-02-09 | XTO ENERGY INC/WINSLOW | 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 Jefferson county, PA, for 2026. Stack tests recorded in 2026: 3.