EPA Air · stack tests by county and year
Air-emissions stack tests in Will County, Illinois, 2025
- 13Stack 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 Will County, Illinois 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 Will County facility page.
Will County, Illinois, 2025
Air-emissions stack tests in Will County, other years
Air-emissions stack tests recorded in Will County, Illinois, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-17 | NORTHERN BORDER PIPELINE CO | Pass | State |
| 2025-08-26 | CITGO PETROLEUM CORP — high-priority violation on file | Pass | State |
| 2025-08-26 | CITGO PETROLEUM CORP — high-priority violation on file | Pass | State |
| 2025-05-08 | CITGO PETROLEUM CORP — high-priority violation on file | Pass | State |
| 2025-02-27 | JACKSON ENERGY CENTER | Pending | State |
| 2025-02-27 | JACKSON ENERGY CENTER | Pass | State |
| 2025-02-25 | GUARDIAN PIPELINE CO | Pass | State |
| 2025-02-25 | GUARDIAN PIPELINE CO | Pass | State |
| 2025-02-25 | GUARDIAN PIPELINE CO | Pass | State |
| 2025-01-21 | EXXON MOBIL OIL CORP — high-priority violation on file | Pending | State |
| 2025-01-21 | EXXON MOBIL OIL CORP — high-priority violation on file | Pending | State |
| 2025-01-21 | EXXON MOBIL OIL CORP — high-priority violation on file | Pass | State |
| 2025-01-21 | EXXON MOBIL OIL CORP — high-priority violation on file | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.