EPA Air · by county
Air-emissions sources in Union County, North Carolina
- 57Facilities
1 change to this record in 90 days; alerts $99/month.
Start the watch
- One source — $99/month
- One county — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
Every stationary source in Union 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 Union County
Each of the 57 operating major, synthetic minor and minor sources in Union County, North Carolina has a record page: every source in Union County, A to Z.
By emissions classification in Union 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 Union 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 72
- 2025 inspections 91
- 2024 inspections 97
- 2023 inspections 96
- 2022 inspections 108
- 2021 inspections 110
- 2020 inspections 123
- 2019 inspections 69
- 2018 inspections 40
- 2017 inspections 35
Violations in Union 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 Union County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
Inspections in Union County, year by year · Violations in Union County, year by year · Stack tests in Union County, year by year
Other counties in North Carolina
Every county in the state with at least three sources on file.
- Rowan County 53
- Rutherford County 30
- Sampson County 30
- Scotland County 18
- Stanly County 29
- Stokes County 4
- Surry County 27
- Swain County 5
- Transylvania County 9
- Undetermined County 13
- Vance County 16
- Wake County 116
- Warren County 3
- Washington County 6
- Watauga County 13
- Wayne County 28
- Wilkes County 28
- Wilson County 46
- Yadkin County 9
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 Union county, NC. It lists 57 facilities in Union county, including 3 major sources.