EPA Air · stack tests by state, industry and year
Utilities (NAICS 2211): stack tests in Illinois, 2026
- 37Stack 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 2026 at a Illinois source whose primary industry code is NAICS 2211. A facility filing more than one industry code is counted under the first one on its record.
Utilities (NAICS 2211) in Illinois, other years
Other industries in Illinois, 2026
- Mining and quarrying (NAICS 2121) 29
- Mining and quarrying (NAICS 2123) 25
- Food manufacturing (NAICS 3112) 14
- Petroleum and coal products manufacturing (NAICS 3241) 11
- Electrical equipment and appliance manufacturing (NAICS 3359) 10
- Pipeline transportation (NAICS 4862) 8
- Primary metal manufacturing (NAICS 3315) 5
- Waste management and remediation (NAICS 5622) 5
- Nonmetallic mineral product manufacturing (NAICS 3273) 5
- Oil and gas extraction (NAICS 2111) 4
- Hospitals (NAICS 6221) 4
- Utilities (NAICS 2212) 3
Air-emissions stack tests recorded in Illinois, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-07-07 | CITY OF FARMER CITY POWER PLANT | FARMER CITY, De Witt, IL | Pass | State |
| 2026-07-02 | RANTOUL ELECTRIC GENERATING PLANT | RANTOUL, Champaign, IL | Pass | State |
| 2026-07-02 | RANTOUL ELECTRIC GENERATING PLANT | RANTOUL, Champaign, IL | Pass | State |
| 2026-07-01 | RANTOUL ELECTRIC GENERATING PLANT | RANTOUL, Champaign, IL | Pass | State |
| 2026-07-01 | RANTOUL ELECTRIC GENERATING PLANT | RANTOUL, Champaign, IL | Pass | State |
| 2026-06-30 | RANTOUL ELECTRIC GENERATING PLANT | RANTOUL, Champaign, IL | Pass | State |
| 2026-06-30 | RANTOUL ELECTRIC GENERATING PLANT | RANTOUL, Champaign, IL | Pass | State |
| 2026-06-30 | RANTOUL ELECTRIC GENERATING PLANT | RANTOUL, Champaign, IL | Pass | State |
| 2026-06-30 | RANTOUL ELECTRIC GENERATING PLANT | RANTOUL, Champaign, IL | Pass | State |
| 2026-06-25 | MARSHALL MUNICIPAL UTILITIES | MARSHALL, Clark, IL | Pass | State |
| 2026-06-24 | MARSHALL MUNICIPAL UTILITIES | MARSHALL, Clark, IL | Pass | State |
| 2026-06-23 | MARSHALL MUNICIPAL UTILITIES | MARSHALL, Clark, IL | Pass | State |
| 2026-06-19 | DYNEGY MIDWEST GENERATION LLC | BALDWIN, Randolph, IL | Pass | State |
| 2026-06-18 | CITY OF CASEY | CASEY, Clark, IL | Pass | State |
| 2026-06-18 | CITY OF CASEY | CASEY, Clark, IL | Pass | State |
| 2026-06-17 | CITY OF CASEY | CASEY, Clark, IL | Pass | State |
| 2026-06-17 | CITY OF ALTAMONT | ALTAMONT, Effingham, IL | Pass | State |
| 2026-06-16 | CITY OF ALTAMONT | ALTAMONT, Effingham, IL | Pass | State |
| 2026-06-16 | CITY OF ALTAMONT | ALTAMONT, Effingham, IL | Pass | State |
| 2026-06-10 | ILLINOIS MUNICIPAL ELECTRIC AGENCY | FLORA, Clay, IL | Pass | State |
| 2026-06-10 | ILLINOIS MUNICIPAL ELECTRIC AGENCY | FLORA, Clay, IL | Pass | State |
| 2026-06-10 | ILLINOIS MUNICIPAL ELECTRIC AGENCY | FLORA, Clay, IL | Pass | State |
| 2026-06-09 | ILLINOIS MUNICIPAL ELECTRIC AGENCY | FLORA, Clay, IL | Pass | State |
| 2026-06-09 | ILLINOIS MUNICIPAL ELECTRIC AGENCY | FLORA, Clay, IL | Pass | State |
| 2026-06-08 | KINCAID GENERATION LLC | KINCAID, Christian, IL | Pending | State |
| 2026-06-08 | KINCAID GENERATION LLC | KINCAID, Christian, IL | Pending | State |
| 2026-06-08 | KINCAID GENERATION LLC | KINCAID, Christian, IL | Pending | State |
| 2026-05-14 | ILLINOIS POWER GENERATING CO | NEWTON, Jasper, IL | Pass | State |
| 2026-04-24 | WINNETKA ELECTRIC PLANT | WINNETKA, Cook, IL | Pass | State |
| 2026-04-24 | WINNETKA ELECTRIC PLANT | WINNETKA, Cook, IL | Pass | State |
| 2026-04-23 | MIDWEST GENERATION LLC | PEKIN, Tazewell, IL | Pass | State |
| 2026-04-20 | WAUKEGAN ELECTRIC GENERATING STATION | WAUKEGAN, Lake, IL | Pass | State |
| 2026-04-20 | WAUKEGAN ELECTRIC GENERATING STATION | WAUKEGAN, Lake, IL | Pass | State |
| 2026-04-20 | WAUKEGAN ELECTRIC GENERATING STATION | WAUKEGAN, Lake, IL | Pass | State |
| 2026-03-11 | WATERLOO CITY LIGHT PLANT | WATERLOO, Monroe, IL | Pass | State |
| 2026-03-10 | CARMI LIGHT & WATER | CARMI, White, IL | Pass | State |
| 2026-02-10 | SOUTHERN ILLINOIS POWER COOP | MARION, Williamson, 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.