EPA Air · by county
Air-emissions sources in Washington County, Pennsylvania
- 223Facilities
Every stationary source in Washington 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.
By emissions classification in Washington 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 Washington 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 105
- 2025 — inspections 122
- 2024 — inspections 171
- 2023 — inspections 134
- 2022 — inspections 217
- 2021 — inspections 218
- 2020 — inspections 176
- 2019 — inspections 112
- 2018 — inspections 122
- 2017 — inspections 162
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| ACCUTREX PROD INC/CANONSBURG | Minor source | No |
| AIR LIQUIDE AMER CORP/DONORA | Minor source | No |
| AIRPORT L&R STATION PIGGING | Minor source | No |
| ALL CLAD METALCRAFTERS/CANONSBURG PLT | Minor source | No |
| ALLEGHENY LUDLUM LLC/HOUSTON FITCH WORKS | Minor source | No |
| ALLEGHENY MILLWORK/LAWRENCE PLT | Synthetic minor source | No |
| AMETEK/NORTH STRABANE PLT | Minor source | No |
| ARDEN LDFL/CHARTIERS TWP | Major source | No |
| AT IND LLC/MONONGAHELA PLT | Minor source | No |
| BELL BOY CLEANERS/WASHINGTON | Minor source | No |
| BELL BOY CLNR/WASHINGTON | Minor source | No |
| BERGEN POWER PIPE SU/DONORA PLT | Minor source | No |
| BLOOM ENG CO INC/CHARLEROI | Minor source | No |
| BOLSAN CO INC/EIGHTY FOUR | Minor source | No |
| BOORD BENCHEK & ASSOC INC - OSTOP/SCHNEIDER BORROW SITE | Minor source | No |
| CHECKERS ONE HOUR CLEANERS/WASHINGTON | Minor source | No |
| CHECKERS ONE HOUR CLENAERS | Minor source | No |
| CIZMEK DRY CLNR/BENTLEYVILLE | Minor source | No |
| CNX GAS CO LLC/MOR 42 WELLPAD | Synthetic minor source | No |
| CNX GAS CO LLC/MOR 44 WELLPAD | Synthetic minor source | No |
| CNX GAS CO LLC/NV-110 WELL SITE | Synthetic minor source | No |
| CNX GAS CO LLC/NV-62 WELLPAD | Synthetic minor source | No |
| CNX GAS CO LLC/WFN-12 WELL PAD | Synthetic minor source | No |
| CNX MIDSTREAM OPR CO LLC/MOR-44 COMP STA | Synthetic minor source | No |
| CNX MIDSTREAM OPR CO LLC/NV-57 COMP STA | Synthetic minor source | No |
| COLUMBIA GAS TRANS CORP/DONEGAL COMP STA | Minor source | No |
| COLUMBIA GAS TRANS LLC/REDD FARM COMP STA | Minor source | No |
| COMFORT CLEANERS | Minor source | No |
| COWDEN STATION | Minor source | No |
| CUSTOM NUCLEAR FABRICATION/CANONSBURG PLT | Minor source | No |
| DIVERSIFIED PROD LLC/CALIFORNIA COMP STA | Synthetic minor source | No |
| DIVERSIFIED PROD LLC/NINEVEH 58 WELL PAD | Synthetic minor source | Yes |
| DIVERSIFIED PROD LLC/NV 34 WELLPAD | Synthetic minor source | Yes |
| DIVERSIFIED PROD LLC/NV 60 WELLPAD | Synthetic minor source | No |
| DONORA DOCK LLC/DONORA TERMINAL | Synthetic minor source | No |
| DONORA SERVICE CENTER | Minor source | No |
| DYNAMET INC/ARDEN FAC | Minor source | No |
| DYNO NOBEL INC/DONORA | Minor source | No |
| EASTERN GATHERING & PROC, INC./CHARLEROI PROPANE STA | Minor source | No |
| EIGHTY FOUR CONTAINER/ N STRABANE | Minor source | No |
| ENSINGER INC/WASHINGTON | Minor source | No |
| ENV COMMODITIES CORP/3 NORTH OLD POWER BOREHOLE | Minor source | No |
| ENV COMMODITIES CORP/G4-3 | Minor source | No |
| ENV COMMODITIES CORP/G5-1 G5-2 & G5-3 | Minor source | No |
| EQM GATHERING OPCO LLC/AMITY INTERCONNECT STA | Minor source | No |
| EQM GATHERING OPCO LLC/BLUE MOON COMP STA | Synthetic minor source | No |
| EQM GATHERING OPCO LLC/KRYPTONITE COMP STA | Synthetic minor source | No |
| EQM GATHERING OPCO LLC/MAKO COMP STA | Synthetic minor source | No |
| EQM GATHERING OPCO LLC/MCINTOSH COMP STA | Minor source | No |
| EQM GATHERING OPCO LLC/PISCES COMP STA | Synthetic minor source | No |
| EQM GATHERING OPCO LLC/REDD DEHY STATION | Synthetic minor source | No |
| EQM GATHERING OPCO LLC/STEELHEAD COMP STA | Synthetic minor source | No |
| EQM GATHERING OPCO LLC/TWILIGHT COMP STA | Minor source | No |
| EQT MIDSTREAM COMPANY LLC/DEEMSTON WICKS COMP STA | Synthetic minor source | No |
| EQT PROD CO / TRINIDAD SCORPION WELLPAD | Minor source | No |
| EQT PROD CO/EALY WELLPAD | Synthetic minor source | No |
| EQT PROD CO/HARBISON WELLPAD | Synthetic minor source | No |
| EQT PROD CO/JT FARM WELLPAD | Synthetic minor source | No |
| EQT PROD CO/KUHN WELLPAD | Synthetic minor source | No |
| EQT PROD CO/MOJO COMPRESSOR UNIT | Synthetic minor source | No |
| EQT PROD CO/STOUT WELLPAD | Synthetic minor source | No |
| EQUITRANS LP/GINGER HILL SITE | Minor source | No |
| EQUITRANS LP/HARTSON | Minor source | No |
| ETC NORTHEAST PIPELINE/REVOLUTION CRYO PLT | Minor source | No |
| EXPAND ENERGY SUSAN SCOFIELD PAD | Minor source | No |
| EXPAND OPERATING LLC/BERNARD MCCULLEY WELLPAD | Synthetic minor source | No |
| EXPAND OPERATING LLC/JOHN MCMURRAY WELLPAD | Synthetic minor source | No |
| FERRO COLOR & GLASS CORP/WASHINGTON | Minor source | No |
| FLEXSYS AMER LTD PAR/MONONGAHELA | Major source | Yes |
| GENERAL ALLOYS INC/CANTON TWP | Minor source | No |
| GEORGE AUGUSTINE PAD | Minor source | No |
| GOLDEN EAGLE CONST CO/EIGHTY FOUR PLT | Synthetic minor source | No |
| HYDRO RECOVERY LP WASHINGTON | Minor source | No |
| IMPERIAL CLEANERS | Minor source | No |
| IMPERIAL CLEANERS & TAILORS/WASHINGTON | Minor source | No |
| IRON OAK TERM LOGISTICS LLC/SAND TRANSFER | Minor source | No |
| JESSOP STEEL LLC/WASHINGTON PLT | Major source | No |
| K PETROLEUM INC/HACKETT COMP STA | Synthetic minor source | Yes |
| K&P ASPHALT / LANGELOTH PLANT | Minor source | No |
| KAYS CLEANERS/DONORA | Minor source | No |
| KRIEBEL MINERALS/WEAVER CENTERVILLE STA | Minor source | No |
| LANGELOTH METALLURGICAL CO/LANGELOTH METALLURGICAL PLT | Major source | Yes |
| LOAN ASSET ISSUER LLC/WEST FINLEY 1 WELL PAD | Synthetic minor source | No |
| LOAN ASSET ISSUER LLC/WEST FINLEY 10 WELL PAD | Synthetic minor source | No |
| LOAN ASSET ISSUER LLC/WEST FINLEY 4 WELL PAD | Synthetic minor source | No |
| LOAN ASSET ISSUER LLC/WEST FINLEY 5 WELL PAD | Synthetic minor source | No |
| LOAN ASSET ISSUER LLC/WEST FINLEY 6 WELL PAD | Synthetic minor source | No |
| MARKWEST LIBERTY M&R/TUPTA DAY COMP STA | Synthetic minor source | No |
| MARKWEST LIBERTY MID & RES / HOSKINS BOOSTER COMP STA | Minor source | No |
| MARKWEST LIBERTY MIDST & RES/IMPERIAL CIBUS RANCH COMP STA | Synthetic minor source | No |
| MARKWEST LIBERTY MIDST & RESOURCES/THREE BROTHERS COMP STA | Synthetic minor source | No |
| MARKWEST LIBERTY MIDSTREAM & RESOURCES LLC/JOE CAIN L/R SITE | Minor source | No |
| MARKWEST LIBERTY MIDSTREAM & RESOURCES LLC/POST RD L/R SITE | Minor source | No |
| MARKWEST LIBERTY MIDSTREAM & RESOURCES LLC/SMITH T L/R SITE | Minor source | No |
| MARKWEST LIBERTY MIDSTREAM & RESOURCES LLC/WILHELM L/R SITE | Minor source | No |
| MARKWEST LIBERTY MIDSTREAM & RESOURCES/FULTON BOOSTER STA | Synthetic minor source | Yes |
| MARKWEST LIBERTY MIDSTREAM & RESOURCES/GODWIN COMP STA | Synthetic minor source | No |
| MARKWEST LIBERTY MIDSTREAM & RESOURCES/HARMON CREEK GAS PLT | Minor source | Yes |
| MARKWEST LIBERTY MIDSTREAM & RESOURCES/HOUSTON GAS PLT | Synthetic minor source | No |
| MARKWEST LIBERTY MIDSTREAM & RESOURCES/HUNTINGTON FARMS L/R | Minor source | No |
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County as filed on the facility record. Figures from EPA’s ICIS-AIR download.