EPA Air · by county
Air-emissions sources in Union County, New Jersey
- 380Facilities
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Every stationary source in Union County, New Jersey 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 376 operating major, synthetic minor and minor sources in Union County, New Jersey 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 21
- 2025 inspections 16
- 2024 inspections 10
- 2023 inspections 34
- 2022 inspections 26
- 2021 inspections 32
- 2020 inspections 29
- 2019 inspections 28
- 2018 inspections 44
- 2017 inspections 44
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.
- 2026 violations 6
- 2025 violations 19
- 2024 violations 21
- 2023 violations 32
- 2022 violations 21
- 2021 violations 17
- 2020 violations 31
- 2019 violations 17
- 2018 violations 6
- 2017 violations 12
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.
- 2023 stack tests 5
- 2022 stack tests 8
- 2021 stack tests 12
- 2020 stack tests 10
- 2019 stack tests 3
- 2018 stack tests 14
- 2017 stack tests 12
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 New Jersey
Every county in the state with at least three sources on file.
- Burlington County 236
- Camden County 482
- Cape May County 81
- Cumberland County 177
- Essex County 605
- Gloucester County 200
- Hudson County 567
- Hunterdon County 84
- Mercer County 185
- Middlesex County 540
- Monmouth County 267
- Morris County 320
- Ocean County 146
- Passaic County 356
- Salem County 78
- Somerset County 179
- Sussex County 91
- Undetermined County 706
- Warren County 88
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, NJ. It lists 380 facilities in Union county and 21 major sources.