U.S. Steel has permanently shut down Battery 15 and applied for tighter limits on pollution linked to asthma 

PITTSBURGH (June 4, 2024) – U.S. Steel has permanently shut down coke Battery 15, one of the oldest and most-polluting parts of the Clairton Coke Works, and has formally applied to the Allegheny County Health Department to remove the battery from its Clean Air Act permits. The closure of Battery 15, which had previously been temporarily idled, will permanently ratchet down emissions of harmful emissions such as sulfur compounds (linked to asthma and respiratory problems), benzene (linked to cancer), and fine particulates (linked to cardiovascular and other health problems). At the time of its closure, Battery 15 contained more than 10% of the remaining coke ovens at Clairton Works. The closure was confirmed in a filing with the Allegheny County Health Department on May 30, 2024. 

That filing also includes an application by U.S. Steel to tighten the limit on emissions of hydrogen sulfide (a respiratory irritant), reducing the allowable limit nearly 30% from 35 to 25 grains per cubic foot of gas facility-wide.

Both of these changes were required under the terms of the historic settlement of federal Clean Air Act litigation by PennEnvironment, the Clean Air Council and Allegheny County. The lawsuit was filed in response to thousands of violations of air pollution limits after the massive fire at U.S. Steel’s Clairton Coke Works on Christmas Eve, 2018.

Zachary Barber, the Clean Air Advocate with PennEnvironment, issued the following statement:

“Pittsburghers can breathe a little easier with the news that Allegheny County’s most-toxic polluter, the Clairton Coke Works, has permanently reduced its emissions of harmful air pollutants. Tightening pollution limits for hydrogen sulfide gas and requiring the permanent closure of one of the dirtiest parts of the Clairton Coke Works will pay public health dividends to local residents for years to come.”

Alex Bomstein, the Executive Director of Clean Air Council, issued the following statement:

“When we sued U.S. Steel, our number one priority was protecting the health of residents in the Mon Valley. The closure of Battery 15 was one of the most important steps toward that goal that we achieved in our historic legal victory over U.S. Steel.  While nothing can undo the damage caused by U.S. Steel’s previous emissions, these reductions will reduce future harm and move the region toward the cleaner, more wholesome air it deserves.” 

Environmental Protection Agency sides with Environmental Integrity Project, PennFuture, Clean Air Council and objects to U.S Steel Edgar Thomson’s Title V permit as it was not in compliance with the Clean Air Act

PITTSBURGH, PA, Feb. 12, 2024 – In another step to help protect Mon Valley residents from harmful air pollutants, the Environmental Protection Agency (EPA) has again sided with environmental groups by issuing an order objecting to an air quality permit issued by the Allegheny County Health Department (ACHD) to U.S. Steel on the basis that it was not in compliance with the Clean Air Act. This time, the EPA objected to the permit issued to U.S. Steel’s Edgar Thomson facility by ACHD in August 2023.

In September 2023, environmental groups submitted a petition to EPA requesting it object to the Title V air quality permit issued to U.S. Steel Edgar Thomson by ACHD. In the petition, environmental groups argued that the Title V permit did not include monitoring and testing requirements sufficient to assure compliance with multiple air quality emissions limitations for multiple emissions sources, and improperly eliminated certain emissions limitations.

On February 7, 2024, EPA issued an order granting all of the petitioners’ claims and objecting to the Edgar Thomson Title V permit on those grounds. In its order, EPA requires ACHD to revise the permit and/or permit record in accordance with its decision. 

This marks the second occasion in recent months that environmental groups have successfully petitioned EPA to object to deficient Title V permits issued by ACHD to U.S. Steel facilities in the Mon Valley. In October, EPA issued a similar order granting the majority of petitioners’ claims relating to insufficient monitoring and testing requirements and objecting to the U.S. Steel Clairton Coke Works’ Title V permit issued by ACHD.  

The U.S. Steel Edgar Thomson Plant is an iron and steel making facility with a history of noncompliance with air pollution regulations and a major source of air pollution in Allegheny County.  Pollutants of concern emitted by the facility include particulate matter, sulfur dioxide, carbon monoxide, nitrogen oxides, volatile organic compounds, and hazardous air pollutants, among others.    

“We are thrilled EPA ordered the Health Department to make all 10 changes we requested so that this massive polluter no longer has a permit full of loopholes,” said Lisa Hallowell, Senior Attorney with the Environmental Integrity Project. “The permit now must be revised to require monitoring to assure compliance with permit limits, which will benefit public health and the environment throughout the Mon Valley.” 

“Ensuring that industry polluters comply with permit limits is necessary to protect Allegheny County residents from harmful air pollution,” said Angela Kilbert, Senior Attorney for PennFuture.  “EPA’s order directs ACHD to ensure that this Title V permit has air quality monitoring and testing requirements sufficient to assure U.S. Steel Edgar Thomson operates in compliance with its emissions limits.” 

“Mon Valley residents shouldn’t have to put up with some of the worst air in the country,” said Alex Bomstein, Clean Air Council Legal Director. “Through air quality monitoring and testing requirements, EPA’s orders will help to ensure that the facility operates within the law, which is key to protecting residents from harmful pollution.”