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Clean Air Act stationary source · ICIS-AIR KY0000002110100029

CENTURY ALUMINUM SEBREE LLC, Robards, KY: Clean Air Act compliance record, inspections, violations, penalties

CENTURY ALUMINUM SEBREE LLC, at 9404 KY 2096, Robards in Henderson County, Kentucky, 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 “No Violation Identified”. Henderson 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 filedCENTURY ALUMINUM SEBREE LLC
ICIS-AIR IDKY0000002110100029
EPA facility registry ID110038162118
Operating statusOperating
Emissions classificationMajor source
Current violation status (ICIS-AIR high-priority violation field)No Violation Identified
Address9404 KY 2096, Robards, KY 42452
CountyHenderson County
In a nonattainment countyYes (EPA Green Book)
Industry (NAICS)Primary metal manufacturing (NAICS 3313)
SIC code3334
EPA region04

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 CENTURY ALUMINUM SEBREE LLC 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
May 21, 2025FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
September 15, 2022FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
September 14, 2022FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
September 15, 2021FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
February 27, 2018FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits
February 27, 2017FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits

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
August 7, 2025Earliest FRV determinationStateTitle V Permits

Enforcement and penalties

0 formal enforcement actions since January 1, 2017, 0 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.

Informal enforcement

DateWhat EPA recordedAgency
August 7, 2025Notice of ViolationState
October 31, 2023Notice of ViolationState
October 30, 2023Notice of ViolationState
October 24, 2023Notice of ViolationState
June 13, 2023Notice of ViolationState

Stack tests

The newest 50 of 71.

DateWhat EPA recordedAgency
April 23, 2026PassState
April 20, 2026PassState
March 11, 2026PassState
January 13, 2026PassState
October 20, 2025PassState
October 13, 2025PassState
April 23, 2025PassState
April 23, 2025PassState
March 25, 2025PassState
March 11, 2025PassState
October 22, 2024PendingState
October 14, 2024PendingState
October 8, 2024PassState
May 21, 2024PassState
April 23, 2024PassState
March 12, 2024PassState
January 9, 2024PassState
December 11, 2023PassState
October 17, 2023PassState
August 1, 2023FailState
May 25, 2023PassState
May 23, 2023FailState
April 18, 2023PassState
March 7, 2023PassState
January 13, 2023PassState
December 12, 2022FailState
October 11, 2022PassState
September 13, 2022PassState
May 25, 2022PassState
May 24, 2022PassState
April 26, 2022PassState
April 22, 2022PassState
April 19, 2022PassState
March 8, 2022PassState
December 7, 2021PassState
October 5, 2021PassState
May 5, 2021PassState
May 4, 2021PassState
May 3, 2021PassState
April 19, 2021PassState
April 19, 2021PassState
April 19, 2021PassState
January 5, 2021PassState
December 1, 2020PassState
November 3, 2020PassState
July 13, 2020FailState
July 9, 2020FailState
July 9, 2020PassState
July 7, 2020PassState
June 29, 2020PassState

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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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 110038162118 there.

Nearby on the register

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