EPA Air · stack tests by state, industry and year
Primary metal manufacturing (NAICS 3311): stack tests in Ohio, 2025
- 34Stack 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 Ohio 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 Ohio, other years
Other industries in Ohio, 2025
- Oil and gas extraction (NAICS 2111) 821
- Nonmetallic mineral product manufacturing (NAICS 3279) 164
- Pipeline transportation (NAICS 4862) 163
- Mining support (NAICS 2131) 148
- Utilities (NAICS 2211) 100
- Waste management and remediation (NAICS 5622) 99
- Petroleum and coal products manufacturing (NAICS 3241) 95
- Electrical equipment and appliance manufacturing (NAICS 3359) 85
- Utilities (NAICS 2212) 80
- Chemical manufacturing (NAICS 3251) 58
- Food manufacturing (NAICS 3119) 26
- Nonmetallic mineral product manufacturing (NAICS 3271) 25
- Primary metal manufacturing (NAICS 3315) 23
- Utilities (NAICS 2213) 20
- Nonmetallic mineral product manufacturing (NAICS 3272) 19
- Primary metal manufacturing (NAICS 3313) 19
- Nonmetallic mineral product manufacturing (NAICS 3273) 15
- Chemical manufacturing (NAICS 3255) 15
- Crop production (NAICS 1114) 15
- Professional, scientific and technical services (NAICS 5413) 12
- Primary metal manufacturing (NAICS 3314) 12
- Printing and related support (NAICS 3231) 12
- Fabricated metal product manufacturing (NAICS 3328) 11
- Educational services (NAICS 6113) 11
- Chemical manufacturing (NAICS 3252) 11
- Heavy and civil engineering construction (NAICS 2371) 9
- Mining and quarrying (NAICS 2123) 9
- Paper manufacturing (NAICS 3222) 8
- Hospitals (NAICS 6221) 7
- Furniture and related product manufacturing (NAICS 3371) 6
- Food manufacturing (NAICS 3118) 6
- Transportation equipment manufacturing (NAICS 3363) 5
- Merchant wholesalers, nondurable goods (NAICS 4247) 5
- Transportation equipment manufacturing (NAICS 3361) 5
- Plastics and rubber products manufacturing (NAICS 3261) 4
- Repair and maintenance (NAICS 8113) 4
- Fabricated metal product manufacturing (NAICS 3321) 4
- Waste management and remediation (NAICS 5629) 4
- Chemical manufacturing (NAICS 3253) 3
- Professional, scientific and technical services (NAICS 5417) 3
- Food manufacturing (NAICS 3111) 3
- Paper manufacturing (NAICS 3221) 3
- Computer and electronic product manufacturing (NAICS 3344) 3
- Food manufacturing (NAICS 3115) 3
- Food manufacturing (NAICS 3116) 3
- Machinery manufacturing (NAICS 3339) 3
- Plastics and rubber products manufacturing (NAICS 3262) 3
Air-emissions stack tests recorded in Ohio, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-12-05 | CLEVELAND-CLIFFS STEEL CORPORATION — high-priority violation on file | MIDDLETOWN, Butler, OH | Pass | State |
| 2025-11-21 | CLEVELAND-CLIFFS STEEL CORPORATION — high-priority violation on file | MIDDLETOWN, Butler, OH | Pass | State |
| 2025-07-03 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-07-03 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-07-03 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-07-03 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-07-03 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-07-03 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-07-03 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-07-03 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-07-03 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-07-03 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-07-03 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-07-03 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-07-03 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-07-03 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-07-03 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-07-03 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-07-02 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-07-02 | NUCOR STEEL MARION, INC. | MARION, Marion, OH | Pass | State |
| 2025-06-11 | ERAMET MARIETTA, INC. — high-priority violation on file | MARIETTA, Washington, OH | Pass | State |
| 2025-06-11 | ERAMET MARIETTA, INC. — high-priority violation on file | MARIETTA, Washington, OH | Pass | State |
| 2025-06-11 | ERAMET MARIETTA, INC. — high-priority violation on file | MARIETTA, Washington, OH | Pass | State |
| 2025-06-11 | ERAMET MARIETTA, INC. — high-priority violation on file | MARIETTA, Washington, OH | Pass | State |
| 2025-06-06 | FERROGLOBE USA METALLURGICAL, INC. | WATERFORD, Washington, OH | Pass | State |
| 2025-06-06 | FERROGLOBE USA METALLURGICAL, INC. | WATERFORD, Washington, OH | Pass | State |
| 2025-06-06 | FERROGLOBE USA METALLURGICAL, INC. | WATERFORD, Washington, OH | Pass | State |
| 2025-06-06 | FERROGLOBE USA METALLURGICAL, INC. | WATERFORD, Washington, OH | Pass | State |
| 2025-03-20 | IRONUNITS LLC | TOLEDO, Lucas, OH | Pass | State |
| 2025-03-20 | IRONUNITS LLC | TOLEDO, Lucas, OH | Pass | State |
| 2025-03-19 | IRONUNITS LLC | TOLEDO, Lucas, OH | Pass | State |
| 2025-03-19 | IRONUNITS LLC | TOLEDO, Lucas, OH | Pass | State |
| 2025-03-18 | IRONUNITS LLC | TOLEDO, Lucas, OH | Pass | State |
| 2025-02-12 | ERAMET MARIETTA, INC. — high-priority violation on file | MARIETTA, Washington, OH | 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.