EPA Air · inspections by state, industry and year
Chemical manufacturing (NAICS 3251): inspections in Oklahoma, 2026
- 3Inspections
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source. Each row is one inspection recorded during 2026 at a Oklahoma source whose primary industry code is NAICS 3251. A facility filing more than one industry code is counted under the first one on its record.
Chemical manufacturing (NAICS 3251) in Oklahoma, other years
Other industries in Oklahoma, 2026
- Oil and gas extraction (NAICS 2111) 97
- Mining and quarrying (NAICS 2123) 13
- Utilities (NAICS 2211) 13
- Petroleum and coal products manufacturing (NAICS 3241) 12
- Pipeline transportation (NAICS 4862) 12
- Waste management and remediation (NAICS 5622) 10
- Pipeline transportation (NAICS 4861) 9
- Plastics and rubber products manufacturing (NAICS 3261) 5
- Transportation equipment manufacturing (NAICS 3364) 4
- Pipeline transportation (NAICS 4869) 4
- Primary metal manufacturing (NAICS 3312) 3
- National security and international affairs (NAICS 9281) 3
- Nonmetallic mineral product manufacturing (NAICS 3273) 3
- Nonmetallic mineral product manufacturing (NAICS 3272) 3
Air-emissions inspections recorded in Oklahoma, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-06-10 | NUCERA SOLUTIONS LLC / BARNSDALL MANUFACTURING FACILITY | BARNSDALL, Osage, OK | FCE On-Site | State |
| 2026-04-16 | CONTINENTAL CARBON CO / CARBON BLACK PRODUCTION FACILITY — high-priority violation on file | PONCA CITY, Kay, OK | FCE On-Site | State |
| 2026-02-25 | CONTINENTAL CARBON CO / CARBON BLACK PRODUCTION FACILITY — high-priority violation on file | PONCA CITY, Kay, OK | PCE On-Site Record/Report Review | State |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the inspection. Figures from EPA’s ICIS-AIR download.