EPA Air · by county
Air-emissions sources in Onslow County, North Carolina
- 26Facilities
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Every stationary source in Onslow County, North Carolina that holds a Clean Air Act permit or is otherwise tracked by an air agency — planned, under construction, operating, seasonal or temporarily closed. Sources EPA records as permanently closed are not listed.
Every source’s record in Onslow County
Each of the 26 operating major, synthetic minor and minor sources in Onslow County, North Carolina has a record page: every source in Onslow County, A to Z.
By emissions classification in Onslow County
A source’s classification is the size band its potential emissions put it in: a major source is large enough to need a Title V operating permit, a synthetic minor has accepted limits to stay below that line, and a minor source sits below it outright.
Inspections in Onslow County, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
- 2026 inspections 44
- 2025 inspections 53
- 2024 inspections 54
- 2023 inspections 43
- 2022 inspections 49
- 2021 inspections 48
- 2020 inspections 52
- 2019 inspections 30
- 2018 inspections 19
- 2017 inspections 31
Violations in Onslow County, by year
A high-priority violation is the most serious class of Clean Air Act non-compliance an agency records against a source; a federally reportable violation is the next step down in severity.
Stack tests in Onslow County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
Inspections in Onslow County, year by year · Violations in Onslow County, year by year · Stack tests in Onslow County, year by year
Other counties in North Carolina
Every county in the state with at least three sources on file.
- Madison County 4
- Martin County 10
- McDowell County 19
- Mecklenburg County 103
- Mitchell County 14
- Montgomery County 30
- Moore County 17
- Nash County 30
- New Hanover County 54
- Northampton County 11
- Orange County 15
- Pasquotank County 11
- Pender County 9
- Perquimans County 4
- Person County 13
- Pitt County 51
- Polk County 6
- Randolph County 65
- Richmond County 27
Facilities
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register for Onslow county, NC. It lists 26 facilities in Onslow county and 2 major sources.