EPA Air · stack tests by county and year
Air-emissions stack tests in Will County, Illinois, 2023
- 6Stack 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 2023. 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, 2023
Air-emissions stack tests in Will County, other years
Air-emissions stack tests recorded in Will County, Illinois, 2023
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2023-10-12 | STEPAN CO | Pass | State |
| 2023-06-02 | STEPAN CO | Pass | State |
| 2023-05-09 | VALTO, INC. | Pass | State |
| 2023-04-06 | GUARDIAN PIPELINE CO | Pass | State |
| 2023-03-20 | GUARDIAN PIPELINE CO | Pass | State |
| 2023-02-23 | 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.