EPA Air · stack tests by state, industry and year
Utilities (NAICS 2211): stack tests in Indiana, 2025
- 128Stack 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 Indiana 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 Indiana, other years
Other industries in Indiana, 2025
- Primary metal manufacturing (NAICS 3315) 250
- Chemical manufacturing (NAICS 3251) 181
- Petroleum and coal products manufacturing (NAICS 3241) 170
- Primary metal manufacturing (NAICS 3313) 107
- Primary metal manufacturing (NAICS 3311) 90
- Mining and quarrying (NAICS 2123) 85
- Food manufacturing (NAICS 3112) 68
- Waste management and remediation (NAICS 5622) 56
- Nonmetallic mineral product manufacturing (NAICS 3279) 45
- Utilities (NAICS 2213) 41
- Primary metal manufacturing (NAICS 3314) 39
- Pipeline transportation (NAICS 4862) 37
- Transportation equipment manufacturing (NAICS 3361) 33
- Electrical equipment and appliance manufacturing (NAICS 3359) 31
- Food manufacturing (NAICS 3111) 28
- Transportation equipment manufacturing (NAICS 3363) 24
- Nonmetallic mineral product manufacturing (NAICS 3274) 17
- Chemical manufacturing (NAICS 3253) 17
- Warehousing and storage (NAICS 4931) 17
- Fabricated metal product manufacturing (NAICS 3323) 14
- Merchant wholesalers, durable goods (NAICS 4239) 14
- Merchant wholesalers, nondurable goods (NAICS 4247) 13
- Primary metal manufacturing (NAICS 3312) 13
- Chemical manufacturing (NAICS 3252) 13
- Educational services (NAICS 6113) 11
- Nonmetallic mineral product manufacturing (NAICS 3273) 11
- Chemical manufacturing (NAICS 3254) 8
- Fabricated metal product manufacturing (NAICS 3328) 6
- Nonmetallic mineral product manufacturing (NAICS 3271) 5
- Fabricated metal product manufacturing (NAICS 3326) 5
- National security and international affairs (NAICS 9281) 5
- Transportation equipment manufacturing (NAICS 3362) 5
- Miscellaneous manufacturing (NAICS 3391) 4
- Nonmetallic mineral product manufacturing (NAICS 3272) 4
- Printing and related support (NAICS 3231) 3
- Fabricated metal product manufacturing (NAICS 3321) 3
- Chemical manufacturing (NAICS 3256) 3
- Plastics and rubber products manufacturing (NAICS 3262) 3
Air-emissions stack tests recorded in Indiana, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-12-22 | INDIANA MICHIGAN POWER COMPANY DBA AEP ROCKPORT PLANT | ROCKPORT, Spencer, IN | Pass | State |
| 2025-12-22 | INDIANA MICHIGAN POWER COMPANY DBA AEP ROCKPORT PLANT | ROCKPORT, Spencer, IN | Pass | State |
| 2025-12-12 | INDIANA MUNICIPAL POWER AGENCY-WHITEWATER VALLEY GENERATING | RICHMOND, Wayne, IN | Pass | State |
| 2025-12-12 | INDIANA MUNICIPAL POWER AGENCY-WHITEWATER VALLEY GENERATING | RICHMOND, Wayne, IN | Pass | State |
| 2025-11-25 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2025-11-25 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2025-11-25 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2025-11-25 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2025-11-25 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2025-11-25 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2025-11-25 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2025-11-24 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-11-24 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-11-12 | NORTHERN INDIANA PUBLIC SERVICE COMPANY LLC MICHIGAN CITY GE — high-priority violation on file | MICHIGAN CITY, LaPorte, IN | Pass | State |
| 2025-11-12 | NORTHERN INDIANA PUBLIC SERVICE COMPANY LLC MICHIGAN CITY GE — high-priority violation on file | MICHIGAN CITY, LaPorte, IN | Pass | State |
| 2025-11-07 | NORTHERN INDIANA PUBLIC SERVICE COMPANY LLC MICHIGAN CITY GE — high-priority violation on file | MICHIGAN CITY, LaPorte, IN | Pass | State |
| 2025-11-07 | NORTHERN INDIANA PUBLIC SERVICE COMPANY LLC MICHIGAN CITY GE — high-priority violation on file | MICHIGAN CITY, LaPorte, IN | Pass | State |
| 2025-11-07 | NORTHERN INDIANA PUBLIC SERVICE COMPANY LLC MICHIGAN CITY GE — high-priority violation on file | MICHIGAN CITY, LaPorte, IN | Pass | State |
| 2025-11-07 | NORTHERN INDIANA PUBLIC SERVICE COMPANY LLC MICHIGAN CITY GE — high-priority violation on file | MICHIGAN CITY, LaPorte, IN | Pass | State |
| 2025-10-28 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-10-28 | WASTE NO ENERGY LLC | MONTICELLO, White, IN | Pass | State |
| 2025-10-28 | WASTE NO ENERGY LLC | MONTICELLO, White, IN | Pass | State |
| 2025-10-28 | WASTE NO ENERGY LLC | MONTICELLO, White, IN | Pass | State |
| 2025-10-23 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-10-15 | DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION | OWENSVILLE, Gibson, IN | Pass | State |
| 2025-09-30 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2025-09-30 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2025-09-30 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2025-09-30 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2025-09-29 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2025-09-29 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2025-09-29 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2025-09-29 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2025-09-24 | INDIANA MICHIGAN POWER COMPANY DBA AEP ROCKPORT PLANT | ROCKPORT, Spencer, IN | Pass | State |
| 2025-09-24 | INDIANA MICHIGAN POWER COMPANY DBA AEP ROCKPORT PLANT | ROCKPORT, Spencer, IN | Pass | State |
| 2025-09-24 | INDIANA MICHIGAN POWER COMPANY DBA AEP ROCKPORT PLANT | ROCKPORT, Spencer, IN | Pass | State |
| 2025-09-23 | INDIANA MICHIGAN POWER COMPANY DBA AEP ROCKPORT PLANT | ROCKPORT, Spencer, IN | Pass | State |
| 2025-09-23 | INDIANA MICHIGAN POWER COMPANY DBA AEP ROCKPORT PLANT | ROCKPORT, Spencer, IN | Pass | State |
| 2025-09-23 | INDIANA MICHIGAN POWER COMPANY DBA AEP ROCKPORT PLANT | ROCKPORT, Spencer, IN | Pass | State |
| 2025-08-29 | SIGECO - FB CULLEY GENERATING STATION | NEWBURGH, Warrick, IN | Pass | State |
| 2025-08-27 | SIGECO - FB CULLEY GENERATING STATION | NEWBURGH, Warrick, IN | Pass | State |
| 2025-08-20 | AES INDIANA PETERSBURG GENERATING STATION — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2025-08-20 | AES INDIANA PETERSBURG GENERATING STATION — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2025-08-14 | AES INDIANA PETERSBURG GENERATING STATION — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2025-08-14 | AES INDIANA PETERSBURG GENERATING STATION — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2025-08-14 | INDIANA MUNICIPAL POWER AGENCY-WHITEWATER VALLEY GENERATING | RICHMOND, Wayne, IN | Pass | State |
| 2025-08-14 | INDIANA MUNICIPAL POWER AGENCY-WHITEWATER VALLEY GENERATING | RICHMOND, Wayne, IN | Pass | State |
| 2025-08-11 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2025-08-05 | DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION | OWENSVILLE, Gibson, IN | Pass | State |
| 2025-08-04 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Fail | State |
| 2025-08-04 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2025-08-04 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Fail | State |
| 2025-07-24 | DUKE ENERGY INDIANA LLC CAYUGA GENERATING STATION — high-priority violation on file | CAYUGA, Vermillion, IN | Pass | State |
| 2025-07-24 | DUKE ENERGY INDIANA LLC CAYUGA GENERATING STATION — high-priority violation on file | CAYUGA, Vermillion, IN | Pass | State |
| 2025-07-24 | DUKE ENERGY INDIANA LLC CAYUGA GENERATING STATION — high-priority violation on file | CAYUGA, Vermillion, IN | Pass | State |
| 2025-07-24 | DUKE ENERGY INDIANA LLC CAYUGA GENERATING STATION — high-priority violation on file | CAYUGA, Vermillion, IN | Pass | State |
| 2025-07-23 | DUKE ENERGY INDIANA LLC CAYUGA GENERATING STATION — high-priority violation on file | CAYUGA, Vermillion, IN | Pass | State |
| 2025-07-23 | DUKE ENERGY INDIANA LLC CAYUGA GENERATING STATION — high-priority violation on file | CAYUGA, Vermillion, IN | Pass | State |
| 2025-07-23 | DUKE ENERGY INDIANA LLC CAYUGA GENERATING STATION — high-priority violation on file | CAYUGA, Vermillion, IN | Pass | State |
| 2025-07-23 | DUKE ENERGY INDIANA LLC CAYUGA GENERATING STATION — high-priority violation on file | CAYUGA, Vermillion, IN | Pass | State |
| 2025-07-22 | BLACKFOOT POWER GENERATING STATION | WINSLOW, Pike, IN | Pass | State |
| 2025-07-22 | BLACKFOOT POWER GENERATING STATION | WINSLOW, Pike, IN | Pass | State |
| 2025-07-22 | BLACKFOOT POWER GENERATING STATION | WINSLOW, Pike, IN | Pass | State |
| 2025-07-18 | MONTPELIER GENERATING STATION LLC — high-priority violation on file | PONETO, Wells, IN | Pass | State |
| 2025-07-18 | MONTPELIER GENERATING STATION LLC — high-priority violation on file | PONETO, Wells, IN | Pass | State |
| 2025-07-17 | SIGECO - FB CULLEY GENERATING STATION | NEWBURGH, Warrick, IN | Pass | State |
| 2025-07-15 | DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION | OWENSVILLE, Gibson, IN | Pass | State |
| 2025-07-10 | DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION | OWENSVILLE, Gibson, IN | Pass | State |
| 2025-06-20 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2025-05-30 | SIGECO - FB CULLEY GENERATING STATION | NEWBURGH, Warrick, IN | Pass | State |
| 2025-04-23 | HALLADOR POWER COMPANY LLC MEROM GENERATING STATION — high-priority violation on file | SULLIVAN, Sullivan, IN | Pass | State |
| 2025-04-23 | HALLADOR POWER COMPANY LLC MEROM GENERATING STATION — high-priority violation on file | SULLIVAN, Sullivan, IN | Pass | State |
| 2025-04-23 | HALLADOR POWER COMPANY LLC MEROM GENERATING STATION — high-priority violation on file | SULLIVAN, Sullivan, IN | Pass | State |
| 2025-04-22 | HALLADOR POWER COMPANY LLC MEROM GENERATING STATION — high-priority violation on file | SULLIVAN, Sullivan, IN | Pass | State |
| 2025-04-22 | HALLADOR POWER COMPANY LLC MEROM GENERATING STATION — high-priority violation on file | SULLIVAN, Sullivan, IN | Pass | State |
| 2025-04-22 | HALLADOR POWER COMPANY LLC MEROM GENERATING STATION — high-priority violation on file | SULLIVAN, Sullivan, IN | Pass | State |
| 2025-03-26 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2025-03-26 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2025-03-26 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2025-03-25 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2025-03-25 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2025-03-25 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2025-03-25 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2025-03-25 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2025-03-25 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2025-03-18 | ZIMMERMAN ENERGY LLC — high-priority violation on file | ARGOS, Marshall, IN | Pass | State |
| 2025-03-18 | ZIMMERMAN ENERGY LLC — high-priority violation on file | ARGOS, Marshall, IN | Pass | State |
| 2025-03-18 | ZIMMERMAN ENERGY LLC — high-priority violation on file | ARGOS, Marshall, IN | Pass | State |
| 2025-03-07 | INDIANA MUNICIPAL POWER AGENCY-WHITEWATER VALLEY GENERATING | RICHMOND, Wayne, IN | Pass | State |
| 2025-03-07 | INDIANA MUNICIPAL POWER AGENCY-WHITEWATER VALLEY GENERATING | RICHMOND, Wayne, IN | Pass | State |
| 2025-03-05 | INDIANA MUNICIPAL POWER AGENCY RICHMOND STATION | CENTERVILLE, Wayne, IN | Pass | State |
| 2025-03-05 | INDIANA MUNICIPAL POWER AGENCY RICHMOND STATION | CENTERVILLE, Wayne, IN | Pass | State |
| 2025-02-20 | INDIANA MUNICIPAL POWER AGENCY RICHMOND STATION | CENTERVILLE, Wayne, IN | Pass | State |
| 2025-02-20 | INDIANA MUNICIPAL POWER AGENCY RICHMOND STATION | CENTERVILLE, Wayne, IN | Pass | State |
| 2025-02-13 | DUKE ENERGY INDIANA LLC - GIBSON GENERATING STATION | OWENSVILLE, Gibson, IN | Pass | State |
| 2025-02-07 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-07 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-07 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-07 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2025-02-07 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
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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.