Notice2025-20414

Clean Air Act Operating Permit Program; Order on Petitions for Objection to State Operating Permit for U.S. Steel Mon Valley Works, Irvin Plant

Primary source

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Published
November 20, 2025

Issuing agencies

Environmental Protection Agency

Abstract

The Environmental Protection Agency (EPA) Administrator signed an order dated September 16, 2025, granting in part and denying in part two petitions: one dated November 15, 2024 from United States Steel Corporation; and one dated November 15, 2024, from the Environmental Integrity Project, PennFuture, and Clean Air Council. The petitions requested that the EPA object to a Clean Air Act (CAA) title V operating permit issued by the Allegheny County Health Department to U.S. Steel Mon Valley Works Irvin Plant for its secondary steel processing facility located in West Mifflin, Allegheny County, Pennsylvania.

Full Text

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<title>Federal Register, Volume 90 Issue 222 (Thursday, November 20, 2025)</title>
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[Federal Register Volume 90, Number 222 (Thursday, November 20, 2025)]
[Notices]
[Page 52380]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-20414]


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ENVIRONMENTAL PROTECTION AGENCY

[FRL-13012-01-R3]


Clean Air Act Operating Permit Program; Order on Petitions for 
Objection to State Operating Permit for U.S. Steel Mon Valley Works, 
Irvin Plant

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of final order on petition.

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SUMMARY: The Environmental Protection Agency (EPA) Administrator signed 
an order dated September 16, 2025, granting in part and denying in part 
two petitions: one dated November 15, 2024 from United States Steel 
Corporation; and one dated November 15, 2024, from the Environmental 
Integrity Project, PennFuture, and Clean Air Council. The petitions 
requested that the EPA object to a Clean Air Act (CAA) title V 
operating permit issued by the Allegheny County Health Department to 
U.S. Steel Mon Valley Works Irvin Plant for its secondary steel 
processing facility located in West Mifflin, Allegheny County, 
Pennsylvania.

FOR FURTHER INFORMATION CONTACT: Gwendolyn Supplee, EPA Region 3, (215) 
814-2763, <a href="/cdn-cgi/l/email-protection#83f0f6f3f3efe6e6ade4f4e6ede7eceffaedc3e6f3e2ade4ecf5"><span class="__cf_email__" data-cfemail="b9caccc9c9d5dcdc97decedcd7ddd6d5c0d7f9dcc9d897ded6cf">[email&#160;protected]</span></a>. The final order and petition are 
available electronically at: <a href="https://www.epa.gov/title-v-operating-permits/title-v-petition-database">https://www.epa.gov/title-v-operating-permits/title-v-petition-database</a>.

SUPPLEMENTARY INFORMATION: The EPA received petitions from the United 
States Steel Corporation dated November 15, 2024, and from 
Environmental Integrity Project, PennFuture, and Clean Air Council 
dated November 15, 2024, requesting that the EPA object to the issuance 
of operating permit no. 0050-OP24, issued by Allegheny County Health 
Department to U.S. Steel Mon Valley Works Irvin Plant in West Mifflin, 
Allegheny County, Pennsylvania. On September 16, 2025, the EPA 
Administrator issued an order granting in part and denying in part the 
petitions. The order itself explains the basis for the EPA's decision.
    Sections 307(b) and 505(b)(2) of the CAA provide that a petitioner 
may request judicial review of those portions of an order that deny 
issues in a petition. Any petition for review shall be filed in the 
United States Court of Appeals for the appropriate circuit no later 
than January 20, 2026.

Michael Dunn,
Acting Director, Air & Radiation Division, Region III.
[FR Doc. 2025-20414 Filed 11-19-25; 8:45 am]
BILLING CODE 6560-50-P


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Indexed from Federal Register on November 20, 2025.

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