EPA Air · stack tests by county and year
Air-emissions stack tests in Lake County, Illinois, 2025
- 12Stack 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 Lake 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 Lake County facility page.
Lake County, Illinois, 2025
Air-emissions stack tests in Lake County, other years
Air-emissions stack tests recorded in Lake County, Illinois, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-02 | NORTH SHORE GAS CO | Pass | State |
| 2025-12-02 | NORTH SHORE GAS CO | Pass | State |
| 2025-12-02 | NORTH SHORE GAS CO | Pass | State |
| 2025-12-02 | NORTH SHORE GAS CO | Pass | State |
| 2025-12-02 | NORTH SHORE GAS CO | Pass | State |
| 2025-10-09 | LAKE FOREST HOSPITAL | Pass | State |
| 2025-10-09 | LAKE FOREST HOSPITAL | Pass | State |
| 2025-10-09 | LAKE FOREST HOSPITAL | Pass | State |
| 2025-10-09 | LAKE FOREST HOSPITAL | Pass | State |
| 2025-07-24 | NAVAL STATION GREAT LAKES | Pass | State |
| 2025-04-24 | ABBVIE INC | Pass | State |
| 2025-02-25 | ABBVIE INC | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.