EPA Air · by county
Air-emissions sources in Lehigh County, Pennsylvania
- 149Facilities
Every stationary source in Lehigh County, Pennsylvania 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 Lehigh County
Each of the 149 operating major, synthetic minor and minor sources in Lehigh County, Pennsylvania has a record page: every source in Lehigh County, A to Z.
By emissions classification in Lehigh 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 Lehigh 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 96
- 2025 inspections 144
- 2024 inspections 107
- 2023 inspections 120
- 2022 inspections 130
- 2021 inspections 83
- 2020 inspections 110
- 2019 inspections 146
- 2018 inspections 190
- 2017 inspections 168
Violations in Lehigh 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.
- 2025 violations 6
- 2024 violations 5
- 2023 violations 8
- 2022 violations 8
- 2021 violations 5
- 2020 violations 4
- 2019 violations 18
- 2018 violations 11
- 2017 violations 8
Stack tests in Lehigh County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2025 stack tests 3
- 2023 stack tests 5
- 2022 stack tests 3
- 2021 stack tests 8
- 2020 stack tests 8
- 2019 stack tests 6
- 2018 stack tests 10
- 2017 stack tests 6
Inspections in Lehigh County, year by year · Violations in Lehigh County, year by year · Stack tests in Lehigh County, year by year
Other counties in Pennsylvania
Every county in the state with at least three sources on file.
- Fulton County 12
- Greene County 131
- Huntingdon County 21
- Indiana County 103
- Jefferson County 64
- Juniata County 15
- Lackawanna County 118
- Lancaster County 251
- Lawrence County 85
- Lebanon County 94
- Luzerne County 217
- Lycoming County 168
- McKean County 70
- Mercer County 108
- Mifflin County 21
- Monroe County 45
- Montgomery County 474
- Montour County 17
- Northampton County 154
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 Lehigh county, PA. It lists 149 facilities in Lehigh county, of which 8 are major sources.