Velarion Records

EPA Air · stack tests by county and year

Air-emissions stack tests in Warren County, Pennsylvania, 2024

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Warren County, Pennsylvania during 2024. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Warren County facility page.

Warren County, Pennsylvania, 2024

Air-emissions stack tests in Warren County, other years

Air-emissions stack tests recorded in Warren County, Pennsylvania, 2024

DateFacilityKindAgency
2024-12-04UNITED REFINING CO/WARREN PLTPassState
2024-08-16UNITED REFINING CO/WARREN PLTPassState
2024-04-15NATL FUEL GAS SUPPLY CORP/ROYSTONE COMP STAPassState

Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.

What this page shows

The page covers Clean Air Act facilities in the EPA air register with stack tests in Warren county, PA, in 2024. Stack tests recorded in 2024: 3.