![UNITED STATES STEEL CORPORATION STEELWORKS EDGAR THOMSON PLANT MONONGAHELA RIVER BRADDOCK ALLEGHENY COUNTY PENNSYLVANIA USA Stock Photo - Alamy UNITED STATES STEEL CORPORATION STEELWORKS EDGAR THOMSON PLANT MONONGAHELA RIVER BRADDOCK ALLEGHENY COUNTY PENNSYLVANIA USA Stock Photo - Alamy](https://c8.alamy.com/comp/P2JJDY/united-states-steel-corporation-steelworks-edgar-thomson-plant-monongahela-river-braddock-allegheny-county-pennsylvania-usa-P2JJDY.jpg)
UNITED STATES STEEL CORPORATION STEELWORKS EDGAR THOMSON PLANT MONONGAHELA RIVER BRADDOCK ALLEGHENY COUNTY PENNSYLVANIA USA Stock Photo - Alamy
![U.S. Steel agrees to $1.5 M fine for air pollution violations at Edgar Thomson steel plant - The Allegheny Front U.S. Steel agrees to $1.5 M fine for air pollution violations at Edgar Thomson steel plant - The Allegheny Front](https://i0.wp.com/www.alleghenyfront.org/wp-content/uploads/2017/06/edgar_thompson_us_steel_braddock.jpg?fit=1200%2C800&ssl=1)
U.S. Steel agrees to $1.5 M fine for air pollution violations at Edgar Thomson steel plant - The Allegheny Front
![U.S. Steel ends proposed shale gas well project at Edgar Thomson steel mill | Pittsburgh Post-Gazette U.S. Steel ends proposed shale gas well project at Edgar Thomson steel mill | Pittsburgh Post-Gazette](https://9b16f79ca967fd0708d1-2713572fef44aa49ec323e813b06d2d9.ssl.cf2.rackcdn.com/1140x_a10-7_cTC/20200307MMSFeatureCROPPED-1619194601.jpg)
U.S. Steel ends proposed shale gas well project at Edgar Thomson steel mill | Pittsburgh Post-Gazette
![Part of the U.S. Steel Edgar Thomson Works is shown in Braddock, Pa. U.S. Steel will invest more than $1 billion on state-of-the-art facilities in western Pennsylvania, including at the Edgar Thompson Part of the U.S. Steel Edgar Thomson Works is shown in Braddock, Pa. U.S. Steel will invest more than $1 billion on state-of-the-art facilities in western Pennsylvania, including at the Edgar Thompson](https://c8.alamy.com/comp/2MK1Y8E/part-of-the-us-steel-edgar-thomson-works-is-shown-in-braddock-pa-us-steel-will-invest-more-than-1-billion-on-state-of-the-art-facilities-in-western-pennsylvania-including-at-the-edgar-thompson-plant-that-it-says-will-improve-its-steelmaking-efficiency-and-reduce-emissions-at-its-mon-valley-works-operations-the-company-said-thursday-ap-photogene-j-puskar-2MK1Y8E.jpg)
Part of the U.S. Steel Edgar Thomson Works is shown in Braddock, Pa. U.S. Steel will invest more than $1 billion on state-of-the-art facilities in western Pennsylvania, including at the Edgar Thompson
![Braddock residents, environmental activists push back on pollution from Edgar Thomson Works | 90.5 WESA Braddock residents, environmental activists push back on pollution from Edgar Thomson Works | 90.5 WESA](https://npr.brightspotcdn.com/e1/cc/2502aff04088a50a13bd0a1831a4/breathe-project-gasp-rally-edgar-thomson-works-us-steel.jpg)
Braddock residents, environmental activists push back on pollution from Edgar Thomson Works | 90.5 WESA
![After Sighting Black Smoke And Flames, Environmental Groups Ask Authorities To Address Air Pollution In Braddock | 90.5 WESA After Sighting Black Smoke And Flames, Environmental Groups Ask Authorities To Address Air Pollution In Braddock | 90.5 WESA](https://npr.brightspotcdn.com/dims4/default/88cf3d9/2147483647/strip/true/crop/512x288+0+27/resize/1200x675!/quality/90/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%2Flegacy%2Fsites%2Fwesa%2Ffiles%2F201803%2Fsteel_tariffs_edgard_thomson_works_braddock_industrial.jpg)
After Sighting Black Smoke And Flames, Environmental Groups Ask Authorities To Address Air Pollution In Braddock | 90.5 WESA
![In the Mon Valley — where U.S. Steel has canceled major investment — many left wondering what went wrong | Pittsburgh Post-Gazette In the Mon Valley — where U.S. Steel has canceled major investment — many left wondering what went wrong | Pittsburgh Post-Gazette](https://9b16f79ca967fd0708d1-2713572fef44aa49ec323e813b06d2d9.ssl.cf2.rackcdn.com/600x_a4-3_cTC/20210430pdETWorks01-1620130996.jpg)