EPA Air · by county
Air-emissions sources in Warren County, Pennsylvania
- 46Facilities
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Every stationary source in Warren 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 Warren County
Each of the 46 operating major, synthetic minor and minor sources in Warren County, Pennsylvania has a record page: every source in Warren County, A to Z.
By emissions classification in Warren 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 Warren 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 23
- 2025 inspections 24
- 2024 inspections 34
- 2023 inspections 41
- 2022 inspections 35
- 2021 inspections 54
- 2020 inspections 27
- 2019 inspections 63
- 2018 inspections 65
- 2017 inspections 55
Violations in Warren 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.
- 2023 violations 8
- 2022 violations 8
- 2021 violations 9
- 2020 violations 6
- 2019 violations 12
- 2018 violations 8
- 2017 violations 12
Stack tests in Warren County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2025 stack tests 5
- 2024 stack tests 3
- 2023 stack tests 8
- 2022 stack tests 6
- 2021 stack tests 8
- 2019 stack tests 3
- 2018 stack tests 5
- 2017 stack tests 3
Inspections in Warren County, year by year · Violations in Warren County, year by year · Stack tests in Warren County, year by year
Other counties in Pennsylvania
Every county in the state with at least three sources on file.
- Northumberland County 107
- Perry County 22
- Philadelphia County 461
- Pike County 13
- Potter County 35
- Schuylkill County 99
- Snyder County 47
- Somerset County 63
- Sullivan County 12
- Susquehanna County 206
- Tioga County 75
- Undetermined County 91
- Union County 38
- Venango County 45
- Washington County 223
- Wayne County 27
- Westmoreland County 158
- Wyoming County 47
- York County 199
Warren County carries 46 of the 8,754 air-emissions sources this register holds in Pennsylvania, which places it 49th of 68 in that cohort.
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 Warren county, PA. It lists 46 facilities in Warren county, and 4 of them are major sources.