EPA Air · stack tests by state, industry and year
Hospitals (NAICS 6221): stack tests in Illinois, 2025
- 19Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2025 at a Illinois source whose primary industry code is NAICS 6221. A facility filing more than one industry code is counted under the first one on its record.
Hospitals (NAICS 6221) in Illinois, other years
Other industries in Illinois, 2025
- Utilities (NAICS 2211) 65
- Mining and quarrying (NAICS 2121) 30
- Pipeline transportation (NAICS 4862) 24
- Primary metal manufacturing (NAICS 3315) 22
- Plastics and rubber products manufacturing (NAICS 3261) 9
- Mining and quarrying (NAICS 2123) 9
- Petroleum and coal products manufacturing (NAICS 3241) 9
- Waste management and remediation (NAICS 5622) 8
- Nonmetallic mineral product manufacturing (NAICS 3273) 8
- Paper manufacturing (NAICS 3222) 7
- Miscellaneous manufacturing (NAICS 3399) 7
- Utilities (NAICS 2212) 7
- Merchant wholesalers, nondurable goods (NAICS 4247) 5
- Executive and legislative government (NAICS 9211) 5
- Chemical manufacturing (NAICS 3251) 4
- Food manufacturing (NAICS 3112) 3
- Amusement, gambling and recreation (NAICS 7132) 3
- Chemical manufacturing (NAICS 3259) 3
Air-emissions stack tests recorded in Illinois, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-11-25 | HINSDALE HOSPITAL | HINSDALE, DuPage, IL | Pass | State |
| 2025-11-25 | HINSDALE HOSPITAL | HINSDALE, DuPage, IL | Pass | State |
| 2025-11-25 | HINSDALE HOSPITAL | HINSDALE, DuPage, IL | Pass | State |
| 2025-11-25 | HINSDALE HOSPITAL | HINSDALE, DuPage, IL | Pass | State |
| 2025-11-25 | RIVERSIDE HOSPITAL | KANKAKEE, Kankakee, IL | Pass | State |
| 2025-11-25 | RIVERSIDE HOSPITAL | KANKAKEE, Kankakee, IL | Pass | State |
| 2025-11-25 | RIVERSIDE HOSPITAL | KANKAKEE, Kankakee, IL | Pass | State |
| 2025-10-09 | LAKE FOREST HOSPITAL | LAKE FOREST, Lake, IL | Pass | State |
| 2025-10-09 | LAKE FOREST HOSPITAL | LAKE FOREST, Lake, IL | Pass | State |
| 2025-10-09 | LAKE FOREST HOSPITAL | LAKE FOREST, Lake, IL | Pass | State |
| 2025-10-09 | LAKE FOREST HOSPITAL | LAKE FOREST, Lake, IL | Pass | State |
| 2025-06-20 | CHRIST HOSPITAL & MEDICAL CENTER | OAK LAWN, Cook, IL | Fail | State |
| 2025-06-20 | CHRIST HOSPITAL & MEDICAL CENTER | OAK LAWN, Cook, IL | Fail | State |
| 2025-03-25 | ADVOCATE SHERMAN HOSPITAL | ELGIN, Kane, IL | Pass | State |
| 2025-03-25 | ADVOCATE SHERMAN HOSPITAL | ELGIN, Kane, IL | Pass | State |
| 2025-03-24 | ADVOCATE ILLINOIS MASONIC MEDICAL CENTER | CHICAGO, Cook, IL | Pass | State |
| 2025-03-24 | ADVOCATE ILLINOIS MASONIC MEDICAL CENTER | CHICAGO, Cook, IL | Pass | State |
| 2025-01-30 | NORTHWEST COMMUNITY HOSPITAL | ARLINGTON HEIGHTS, Cook, IL | Pass | State |
| 2025-01-30 | NORTHWEST COMMUNITY HOSPITAL | ARLINGTON HEIGHTS, Cook, IL | Pass | State |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.