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.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in Lake county, IL, for 2025. It lists 12 stack tests recorded in 2025.