Velarion Records
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Clean Air Act stationary source · ICIS-AIR PAACH0004200300032

USS/CLAIRTON WORKS, Clairton, PA: Clean Air Act compliance record, inspections, violations, penalties

USS/CLAIRTON WORKS, at 400 STATE ST, Clairton in Allegheny County, Pennsylvania, is an operating major source of air pollution on EPA’s ICIS-AIR register. EPA’s file records its current violation status (ICIS-AIR’s high-priority violation field) as “Unaddressed-Local”. Allegheny County is on EPA’s Green Book list of areas that do not meet a national air quality standard. The status and classification are as EPA’s facility file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the source’s current standing, quarter by quarter.

Identity

Facility as filedUSS/CLAIRTON WORKS
ICIS-AIR IDPAACH0004200300032
EPA facility registry ID110042043384
Operating statusOperating
Emissions classificationMajor source
Current violation status (ICIS-AIR high-priority violation field)Unaddressed-Local
Address400 STATE ST, Clairton, PA 150251855
CountyAllegheny County
In a nonattainment countyYes (EPA Green Book)
Industry (NAICS)Primary metal manufacturing (NAICS 3311)
SIC code3312
EPA region03
Local air agencyAllegheny County Health Department

Cited to the EPA ICIS-AIR facility file (ECHO download).

Programs and pollutants

Velarion’s copy of EPA’s ICIS-AIR download does not include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs USS/CLAIRTON WORKS is under or the pollutants it is permitted for. The programs each evaluation and violation below was recorded under are shown with it. EPA’s free Detailed Facility Report lists both.

Compliance evaluations

DateWhat EPA recordedAgencyPrograms
July 3, 2025FCE On-SiteLocalMACT Standards (40 CFR Part 63); National Emission Standards for Hazardous Air Pollutants (40 CFR Part 61); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
June 3, 2025PCE On-SiteLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
August 13, 2024PCE On-SiteU.S. EPAMACT Standards (40 CFR Part 63); National Emission Standards for Hazardous Air Pollutants (40 CFR Part 61); New Source Performance Standards
February 22, 2024PCE Off-SiteLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
December 15, 2023PCE Off-SiteLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
December 5, 2023PCE Off-SiteLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
October 19, 2023PCE Off-SiteLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
June 15, 2023FCE On-SiteLocalMACT Standards (40 CFR Part 63); National Emission Standards for Hazardous Air Pollutants (40 CFR Part 61); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
March 22, 2023PCE On-SiteU.S. EPAMACT Standards (40 CFR Part 63); Title V Permits
March 15, 2022PCE Off-SiteLocalMACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
January 5, 2022PCE Off-SiteLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
August 4, 2021PCE On-SiteLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
June 10, 2021FCE On-SiteStateMACT Standards (40 CFR Part 63); National Emission Standards for Hazardous Air Pollutants (40 CFR Part 61); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
June 4, 2021PCE Off-SiteLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
May 27, 2020PCE Off-SiteLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
June 11, 2019FCE On-SiteLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
July 20, 2017FCE On-SiteLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Violations

A high-priority violation (HPV) is the most serious class of Clean Air Act non-compliance an agency records; a federally reportable violation (FRV) is the next step down. Each row is one determination as EPA’s violation history files it.

DateWhat EPA recordedAgencyPrograms
December 18, 2024HPV day-zero determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
October 23, 2024Earliest FRV determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
February 22, 2024HPV day-zero determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
February 7, 2024HPV day-zero determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
November 30, 2023HPV day-zero determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
September 22, 2023Earliest FRV determinationLocalMACT Standards (40 CFR Part 63); National Emission Standards for Hazardous Air Pollutants (40 CFR Part 61); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
August 18, 2023Earliest FRV determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
August 16, 2023HPV day-zero determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
July 4, 2022Earliest FRV determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
March 15, 2022HPV day-zero determinationLocalMACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
March 3, 2022HPV day-zero determinationLocalTitle V Permits
November 25, 2021Earliest FRV determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
August 4, 2021Earliest FRV determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
June 4, 2021Earliest FRV determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
April 1, 2021Earliest FRV determinationLocalTitle V Permits
August 25, 2020HPV day-zero determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
May 19, 2020Earliest FRV determinationLocalMACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
March 12, 2020HPV day-zero determinationLocalTitle V Permits
February 4, 2020HPV day-zero determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
January 14, 2020Earliest FRV determinationLocalMACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
June 17, 2019Earliest FRV determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
May 1, 2019Earliest FRV determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
May 1, 2019Earliest FRV determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
April 30, 2019Earliest FRV determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
March 6, 2019HPV day-zero determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
February 28, 2019HPV day-zero determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
February 4, 2019HPV day-zero determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
January 10, 2019Earliest FRV determinationLocalTitle V Permits
September 30, 2018Earliest FRV determinationLocalMACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
August 1, 2018Earliest FRV determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
June 30, 2018Earliest FRV determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
June 28, 2018Earliest FRV determinationLocalMACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
May 7, 2018Earliest FRV determinationLocalMACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
February 27, 2018HPV day-zero determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
February 1, 2018Earliest FRV determinationLocalMACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
January 8, 2018HPV day-zero determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
November 8, 2017Earliest FRV determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
October 31, 2017Earliest FRV determinationLocalTitle V Permits
October 30, 2017Earliest FRV determinationLocalMACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
August 1, 2017Earliest FRV determinationLocalMACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
July 5, 2017Earliest FRV determinationLocalMACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
June 12, 2017Earliest FRV determinationLocalMACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
May 1, 2017Earliest FRV determinationLocalState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
January 25, 2017Earliest FRV determinationLocalMACT Standards (40 CFR Part 63); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits

Enforcement and penalties

40 formal enforcement actions since January 1, 2017, 37 of them with a penalty filed above zero. Each penalty is shown as EPA’s formal action file states it; “Not stated” means the file gives no figure, and $0 is a disclosed zero.

DateWhat EPA recordedAgencyPenalty, as filed
May 3, 2024Administrative OrderLocal$7,700
February 26, 2024Administrative OrderLocal$1,991,000
January 29, 2024Administrative OrderLocal$0
December 29, 2023Administrative OrderLocal$2,202,825
October 19, 2023Administrative OrderLocal$2,860
March 24, 2022Administrative OrderLocal$4,570,500
March 7, 2022Administrative OrderLocal$1,842,530
December 15, 2021Administrative OrderLocal$5,500
August 27, 2021Administrative OrderLocal$5,500
February 19, 2021Administrative OrderLocal$4,165
January 25, 2021Administrative OrderLocal$8,800
May 28, 2020Administrative OrderLocal$36,140
February 21, 2020Administrative OrderLocal$13,200
January 4, 2020Administrative OrderLocal$0
December 20, 2019Administrative OrderLocal$10,560
June 27, 2019Administrative OrderLocal$273,250
June 17, 2019Administrative OrderLocal$0
May 10, 2019Administrative OrderLocal$337,670
May 10, 2019Administrative OrderLocal$5,750
May 1, 2019Administrative OrderLocal$49,700
April 30, 2019Administrative OrderLocal$40,000
March 29, 2019Administrative OrderLocal$707,568
March 25, 2019Administrative OrderLocal$1,980
February 1, 2019Administrative OrderLocal$1,600
February 1, 2019Administrative OrderLocal$44,700
October 31, 2018Administrative OrderLocal$69,300
October 31, 2018Administrative OrderLocal$613,716
August 1, 2018Administrative OrderLocal$60,600
June 28, 2018Administrative OrderLocal$1,091,950
May 7, 2018Administrative OrderLocal$392,100
May 1, 2018Administrative OrderLocal$45,400
February 27, 2018Administrative OrderLocal$5,500
February 1, 2018Administrative OrderLocal$90,000
October 31, 2017Administrative OrderLocal$93,900
October 30, 2017Administrative OrderLocal$199,300
August 1, 2017Administrative OrderLocal$52,300
July 5, 2017Administrative OrderLocal$122,775
June 12, 2017Administrative OrderLocal$227,875
May 1, 2017Administrative OrderLocal$34,000
January 25, 2017Administrative OrderLocal$253,425

Informal enforcement

DateWhat EPA recordedAgency
December 6, 2021Notice of ViolationLocal
April 1, 2021Notice of ViolationLocal

Stack tests

The newest 50 of 114.

DateWhat EPA recordedAgency
June 19, 2026PassLocal
May 14, 2026PassLocal
May 7, 2026PassLocal
February 20, 2026PassLocal
February 18, 2026PassLocal
September 4, 2025PassLocal
August 20, 2025PassLocal
June 26, 2025PassLocal
June 11, 2025PassLocal
June 5, 2025PassLocal
October 31, 2024FailLocal
September 19, 2024PassLocal
September 12, 2024PassLocal
August 6, 2024FailLocal
August 5, 2024FailLocal
July 26, 2024FailLocal
July 24, 2024FailLocal
July 12, 2024PassLocal
July 11, 2024PassLocal
June 4, 2024PassLocal
May 22, 2024PassLocal
May 16, 2024PassLocal
March 14, 2024PassLocal
March 13, 2024PassLocal
March 12, 2024PassLocal
March 7, 2024PassLocal
March 5, 2024PassLocal
October 18, 2023PassLocal
September 22, 2023FailLocal
September 15, 2023PassLocal
August 22, 2023PassLocal
July 20, 2023PassLocal
June 22, 2023PassLocal
June 20, 2023FailLocal
October 14, 2022PassLocal
September 28, 2022PassLocal
September 22, 2022PassLocal
August 17, 2022PassLocal
August 16, 2022PassLocal
August 12, 2022PassLocal
August 3, 2022PassLocal
August 2, 2022PassLocal
June 14, 2022PassLocal
June 8, 2022PassLocal
June 3, 2022PassLocal
March 24, 2022PassLocal
March 23, 2022PassLocal
March 22, 2022PassLocal
March 18, 2022PassLocal
March 16, 2022PassLocal

Cited to the EPA ICIS-AIR evaluation, violation, stack test and enforcement files (ECHO download), events dated January 1, 2017 or later as loaded; up to 50 rows of each shown, newest first.

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How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every source on ECHO: its compliance status quarter by quarter, its evaluations, and its violations, enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter EPA facility registry ID 110042043384 there.

Nearby on the register

Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.