EPA Air · stack tests by county and year
Air-emissions stack tests in Will County, Illinois, 2026
- 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 Will County, Illinois 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 Will County facility page.
Will County, Illinois, 2026
Air-emissions stack tests in Will County, other years
Air-emissions stack tests recorded in Will County, Illinois, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-06-23 | VECTOR PIPELINE | Pass | State |
| 2026-06-11 | CITGO PETROLEUM CORP — high-priority violation on file | Pending | State |
| 2026-06-11 | CITGO PETROLEUM CORP — high-priority violation on file | Pending | State |
| 2026-06-10 | CITGO PETROLEUM CORP — high-priority violation on file | Pending | State |
| 2026-06-09 | CITGO PETROLEUM CORP — high-priority violation on file | Pending | State |
| 2026-04-01 | ANR PIPELINE CO | Pass | State |
| 2026-03-30 | CITGO PETROLEUM CORP — high-priority violation on file | Pass | State |
| 2026-03-30 | EXXONMOBIL OIL CORP | Pass | State |
| 2026-03-05 | EXXON MOBIL OIL CORP — high-priority violation on file | Pass | State |
| 2026-01-13 | GUARDIAN PIPELINE CO | 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 Will county, IL, for 2026. It lists 10 stack tests recorded in 2026.