EPA Air · stack tests by state, industry and year
Primary metal manufacturing (NAICS 3311): stack tests in Indiana, 2025
- 90Stack 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 3311. A facility filing more than one industry code is counted under the first one on its record.
Primary metal manufacturing (NAICS 3311) 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
- Utilities (NAICS 2211) 128
- Primary metal manufacturing (NAICS 3313) 107
- 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 |
|---|---|---|---|---|
| 2025-12-04 | US STEEL CORPORATION GARY WORKS — high-priority violation on file | GARY, Lake, IN | Pass | State |
| 2025-11-26 | VOSS CLARK DBA PGP CORP | JEFFERSONVILLE, Clark, IN | Pass | State |
| 2025-11-26 | VOSS CLARK DBA PGP CORP | JEFFERSONVILLE, Clark, IN | Pass | State |
| 2025-11-26 | VOSS CLARK DBA PGP CORP | JEFFERSONVILLE, Clark, IN | Pass | State |
| 2025-11-26 | VOSS CLARK DBA PGP CORP | JEFFERSONVILLE, Clark, IN | Pass | State |
| 2025-11-26 | VOSS CLARK DBA PGP CORP | JEFFERSONVILLE, Clark, IN | Pass | State |
| 2025-11-21 | STEEL DYNAMICS, INC. STRUCTURAL & RAIL DIVISION — high-priority violation on file | COLUMBIA CITY, Whitley, IN | Fail | State |
| 2025-11-18 | CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file | BURNS HARBOR, Porter, IN | Pass | State |
| 2025-10-23 | NUCOR STEEL — high-priority violation on file | CRAWFORDSVILLE, Montgomery, IN | Pass | State |
| 2025-09-25 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-25 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-25 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-25 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-25 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-19 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-19 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-19 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-19 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-19 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-19 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-19 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2025-09-13 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2025-09-13 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2025-09-13 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2025-09-13 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2025-09-13 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2025-09-13 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2025-09-13 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2025-09-11 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2025-09-11 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2025-09-11 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2025-09-11 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Fail | State |
| 2025-09-11 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Pass | State |
| 2025-09-11 | NLMK INDIANA — high-priority violation on file | PORTAGE, Porter, IN | Fail | State |
| 2025-08-28 | CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2025-08-28 | CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2025-08-28 | CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file | EAST CHICAGO, Lake, IN | Fail | State |
| 2025-08-06 | NUCOR STEEL — high-priority violation on file | CRAWFORDSVILLE, Montgomery, IN | Pass | State |
| 2025-08-05 | CLEVELAND CLIFFS NEW CARLISLE LLC — high-priority violation on file | NEW CARLISLE, St. Joseph, IN | Pass | State |
| 2025-07-31 | STEEL DYNAMICS, INC. STRUCTURAL & RAIL DIVISION — high-priority violation on file | COLUMBIA CITY, Whitley, IN | Pass | State |
| 2025-07-31 | STEEL DYNAMICS, INC. STRUCTURAL & RAIL DIVISION — high-priority violation on file | COLUMBIA CITY, Whitley, IN | Pass | State |
| 2025-07-31 | STEEL DYNAMICS, INC. STRUCTURAL & RAIL DIVISION — high-priority violation on file | COLUMBIA CITY, Whitley, IN | Pass | State |
| 2025-07-23 | INDIANA HARBOR COKE COMPANY LP CONTRACTOR OF CLEVELAND-CLIFF — high-priority violation on file | EAST CHICAGO, Lake, IN | Fail | State |
| 2025-07-23 | INDIANA HARBOR COKE COMPANY LP CONTRACTOR OF CLEVELAND-CLIFF — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2025-07-16 | CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file | BURNS HARBOR, Porter, IN | Pass | State |
| 2025-07-16 | CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file | BURNS HARBOR, Porter, IN | Pass | State |
| 2025-07-15 | US STEEL CORPORATION GARY WORKS — high-priority violation on file | GARY, Lake, IN | Fail | State |
| 2025-07-10 | CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file | BURNS HARBOR, Porter, IN | Pass | State |
| 2025-07-10 | CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file | BURNS HARBOR, Porter, IN | Pass | State |
| 2025-06-05 | CLEVELAND-CLIFFS STEEL CORPORATION, ROCKPORT WORKS | ROCKPORT, Spencer, IN | Pass | State |
| 2025-06-03 | CLEVELAND-CLIFFS STEEL CORPORATION, ROCKPORT WORKS | ROCKPORT, Spencer, IN | Pass | State |
| 2025-05-30 | CLEVELAND CLIFFS NEW CARLISLE LLC — high-priority violation on file | NEW CARLISLE, St. Joseph, IN | Pass | State |
| 2025-05-29 | CLEVELAND CLIFFS NEW CARLISLE LLC — high-priority violation on file | NEW CARLISLE, St. Joseph, IN | Pass | State |
| 2025-05-28 | CLEVELAND CLIFFS NEW CARLISLE LLC — high-priority violation on file | NEW CARLISLE, St. Joseph, IN | Pass | State |
| 2025-05-28 | CLEVELAND CLIFFS NEW CARLISLE LLC — high-priority violation on file | NEW CARLISLE, St. Joseph, IN | Pass | State |
| 2025-05-14 | CLEVELAND CLIFFS NEW CARLISLE LLC — high-priority violation on file | NEW CARLISLE, St. Joseph, IN | Pass | State |
| 2025-05-14 | CLEVELAND CLIFFS NEW CARLISLE LLC — high-priority violation on file | NEW CARLISLE, St. Joseph, IN | Pass | State |
| 2025-05-14 | CLEVELAND CLIFFS NEW CARLISLE LLC — high-priority violation on file | NEW CARLISLE, St. Joseph, IN | Pass | State |
| 2025-05-13 | INDIANA HARBOR COKE COMPANY LP CONTRACTOR OF CLEVELAND-CLIFF — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2025-05-13 | INDIANA HARBOR COKE COMPANY LP CONTRACTOR OF CLEVELAND-CLIFF — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2025-05-13 | INDIANA HARBOR COKE COMPANY LP CONTRACTOR OF CLEVELAND-CLIFF — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2025-05-09 | INDIANA HARBOR COKE COMPANY LP CONTRACTOR OF CLEVELAND-CLIFF — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2025-05-08 | INDIANA HARBOR COKE COMPANY LP CONTRACTOR OF CLEVELAND-CLIFF — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2025-05-08 | INDIANA HARBOR COKE COMPANY LP CONTRACTOR OF CLEVELAND-CLIFF — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2025-05-07 | INDIANA HARBOR COKE COMPANY LP CONTRACTOR OF CLEVELAND-CLIFF — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2025-05-07 | INDIANA HARBOR COKE COMPANY LP CONTRACTOR OF CLEVELAND-CLIFF — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2025-05-06 | INDIANA HARBOR COKE COMPANY LP CONTRACTOR OF CLEVELAND-CLIFF — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2025-05-06 | INDIANA HARBOR COKE COMPANY LP CONTRACTOR OF CLEVELAND-CLIFF — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2025-05-01 | NUCOR STEEL — high-priority violation on file | CRAWFORDSVILLE, Montgomery, IN | Fail | State |
| 2025-04-29 | CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file | BURNS HARBOR, Porter, IN | Pass | State |
| 2025-04-24 | STEEL DYNAMICS, INC. STRUCTURAL & RAIL DIVISION — high-priority violation on file | COLUMBIA CITY, Whitley, IN | Pass | State |
| 2025-04-24 | STEEL DYNAMICS, INC. STRUCTURAL & RAIL DIVISION — high-priority violation on file | COLUMBIA CITY, Whitley, IN | Pass | State |
| 2025-04-24 | STEEL DYNAMICS, INC. STRUCTURAL & RAIL DIVISION — high-priority violation on file | COLUMBIA CITY, Whitley, IN | Pass | State |
| 2025-03-25 | NEW CASTLE STAINLESS PLATE LLC | NEW CASTLE, Henry, IN | Pass | State |
| 2025-03-25 | NEW CASTLE STAINLESS PLATE LLC | NEW CASTLE, Henry, IN | Pass | State |
| 2025-03-25 | NEW CASTLE STAINLESS PLATE LLC | NEW CASTLE, Henry, IN | Pass | State |
| 2025-03-25 | NEW CASTLE STAINLESS PLATE LLC | NEW CASTLE, Henry, IN | Pass | State |
| 2025-03-25 | NEW CASTLE STAINLESS PLATE LLC | NEW CASTLE, Henry, IN | Pass | State |
| 2025-03-25 | NEW CASTLE STAINLESS PLATE LLC | NEW CASTLE, Henry, IN | Pass | State |
| 2025-01-27 | CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file | BURNS HARBOR, Porter, IN | Pass | State |
| 2025-01-23 | STEEL DYNAMICS, INC. STRUCTURAL & RAIL DIVISION — high-priority violation on file | COLUMBIA CITY, Whitley, IN | 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.