EPA Air · by county
Air-emissions sources in Lancaster County, Pennsylvania
- 251Facilities
Every stationary source in Lancaster 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 Lancaster County
Each of the 247 operating major, synthetic minor and minor sources in Lancaster County, Pennsylvania has a record page: every source in Lancaster County, A to Z.
By emissions classification in Lancaster 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 Lancaster 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 155
- 2025 inspections 229
- 2024 inspections 245
- 2023 inspections 250
- 2022 inspections 239
- 2021 inspections 237
- 2020 inspections 224
- 2019 inspections 209
- 2018 inspections 108
- 2017 inspections 144
Violations in Lancaster 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 9
- 2025 violations 16
- 2024 violations 15
- 2023 violations 12
- 2022 violations 20
- 2021 violations 21
- 2020 violations 11
- 2019 violations 23
- 2018 violations 13
- 2017 violations 16
Stack tests in Lancaster County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2026 stack tests 6
- 2025 stack tests 23
- 2024 stack tests 18
- 2023 stack tests 13
- 2022 stack tests 13
- 2021 stack tests 17
- 2020 stack tests 18
- 2019 stack tests 10
- 2018 stack tests 20
- 2017 stack tests 15
Inspections in Lancaster County, year by year · Violations in Lancaster County, year by year · Stack tests in Lancaster County, year by year
Other counties in Pennsylvania
Every county in the state with at least three sources on file.
- Fayette County 73
- Forest County 21
- Franklin County 94
- Fulton County 12
- Greene County 131
- Huntingdon County 21
- Indiana County 103
- Jefferson County 64
- Juniata County 15
- Lackawanna County 118
- Lawrence County 85
- Lebanon County 94
- Lehigh County 149
- Luzerne County 217
- Lycoming County 168
- McKean County 70
- Mercer County 108
- Mifflin County 21
- Monroe County 45
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 Lancaster county, PA. It lists 251 facilities in Lancaster county, of which 20 are major sources.