Velarion Records

Clean Air Act stationary source · ICIS-AIR WI0000005503100062

SUPERIOR REFINING COMPANY LLC, Superior, WI: Clean Air Act compliance record, inspections, violations, penalties

SUPERIOR REFINING COMPANY LLC, at 2407 STINSON AVE, Superior in Douglas County, Wisconsin, 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-State”. 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 filedSUPERIOR REFINING COMPANY LLC
ICIS-AIR IDWI0000005503100062
EPA facility registry ID110000422962
Operating statusOperating
Emissions classificationMajor source
Current violation status (ICIS-AIR high-priority violation field)Unaddressed-State
Address2407 STINSON AVE, Superior, WI 548804486
CountyDouglas County
In a nonattainment countyNo (EPA Green Book)
Industry (NAICS)Petroleum and coal products manufacturing (NAICS 3241)
EPA region05

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 SUPERIOR REFINING COMPANY 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

The newest 50 of 73.

DateWhat EPA recordedAgencyPrograms
September 2, 2026PCE Off-SiteStateTitle V Permits
August 5, 2026PCE Off-SiteStateTitle V Permits
August 5, 2026PCE Off-SiteStateTitle V Permits
August 5, 2026PCE Off-SiteStateTitle V Permits
July 27, 2026PCE Off-SiteStateTitle V Permits
July 13, 2026PCE On-SiteStateTitle V Permits
June 8, 2026PCE Off-SiteStateTitle V Permits
April 28, 2026PCE Off-SiteStateTitle V Permits
April 17, 2026PCE Off-SiteStateTitle V Permits
April 13, 2026PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; Title V Permits
February 2, 2026PCE Off-SiteStateTitle V Permits
February 2, 2026PCE Off-SiteStateTitle V Permits
February 2, 2026PCE Off-SiteStateTitle V Permits
January 28, 2026PCE Off-SiteStateTitle V Permits
December 4, 2025PCE Off-SiteStateTitle V Permits
November 3, 2025PCE Off-SiteStateTitle V Permits
October 30, 2025PCE Off-SiteStateTitle V Permits
October 10, 2025PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; Title V Permits
September 29, 2025FCE On-SiteStateTitle V Permits
September 22, 2025PCE Off-SiteStateTitle V Permits
August 18, 2025PCE Off-SiteStateTitle V Permits
August 11, 2025PCE Off-SiteStateTitle V Permits
August 11, 2025PCE Off-SiteStateTitle V Permits
August 11, 2025PCE Off-SiteStateTitle V Permits
August 4, 2025PCE Off-SiteStateTitle V Permits
July 31, 2025PCE Off-SiteStateTitle V Permits
July 31, 2025PCE Off-SiteStateTitle V Permits
July 16, 2025PCE Off-SiteStateTitle V Permits
May 22, 2025PCE Off-SiteStateTitle V Permits
May 1, 2025PCE Off-SiteStateTitle V Permits
May 1, 2025PCE Off-SiteStateTitle V Permits
March 6, 2025PCE Off-SiteStateTitle V Permits
February 4, 2025PCE Off-SiteStateTitle V Permits
February 4, 2025PCE Off-SiteStateTitle V Permits
January 29, 2025PCE Off-SiteStateTitle V Permits
January 15, 2025PCE Off-SiteStateTitle V Permits
November 19, 2024PCE Off-SiteStateTitle V Permits
November 4, 2024PCE Off-SiteStateTitle V Permits
November 4, 2024PCE Off-SiteStateTitle V Permits
November 4, 2024PCE Off-SiteStateTitle V Permits
November 4, 2024PCE Off-SiteStateTitle V Permits
November 4, 2024PCE Off-SiteStateTitle V Permits
November 4, 2024PCE Off-SiteStateTitle V Permits
November 4, 2024PCE On-SiteStateTitle V Permits
November 4, 2024PCE Off-SiteStateTitle V Permits
November 4, 2024PCE Off-SiteStateTitle V Permits
November 4, 2024PCE Off-SiteStateTitle V Permits
October 23, 2024PCE Off-SiteStateTitle V Permits
September 20, 2023FCE Off-SiteStateTitle V Permits
September 18, 2023PCE Off-SiteStateTitle 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.

The newest 50 of 75.

DateWhat EPA recordedAgencyPrograms
June 12, 2026Earliest FRV determinationStateTitle V Permits
June 12, 2026Earliest FRV determinationStateTitle V Permits
June 12, 2026Earliest FRV determinationStatePrevention of Significant Deterioration of Air Quality
June 9, 2026Earliest FRV determinationStateTitle V Permits
May 28, 2026Earliest FRV determinationStateNew Source Performance Standards
May 18, 2026Earliest FRV determinationStateTitle V Permits
May 15, 2026Earliest FRV determinationStatePrevention of Significant Deterioration of Air Quality
May 15, 2026Earliest FRV determinationStateNew Source Performance Standards; Prevention of Significant Deterioration of Air Quality; Title V Permits
April 23, 2026Earliest FRV determinationStateMACT Standards (40 CFR Part 63)
March 3, 2026Earliest FRV determinationStateMACT Standards (40 CFR Part 63)
February 3, 2026Earliest FRV determinationStateNew Source Performance Standards
February 3, 2026Earliest FRV determinationStateNew Source Performance Standards
February 3, 2026Earliest FRV determinationStatePrevention of Significant Deterioration of Air Quality
February 3, 2026Earliest FRV determinationStatePrevention of Significant Deterioration of Air Quality
February 3, 2026Earliest FRV determinationStateTitle V Permits
November 6, 2025Earliest FRV determinationStatePrevention of Significant Deterioration of Air Quality
October 24, 2025Earliest FRV determinationStateNew Source Performance Standards
October 24, 2025Earliest FRV determinationStateMACT Standards (40 CFR Part 63); New Source Performance Standards; Prevention of Significant Deterioration of Air Quality; Title V Permits
August 29, 2025Earliest FRV determinationStateTitle V Permits
August 29, 2025Earliest FRV determinationStatePrevention of Significant Deterioration of Air Quality
August 20, 2025Earliest FRV determinationStatePrevention of Significant Deterioration of Air Quality
August 20, 2025Earliest FRV determinationStatePrevention of Significant Deterioration of Air Quality
August 20, 2025Earliest FRV determinationStatePrevention of Significant Deterioration of Air Quality
August 20, 2025Earliest FRV determinationStateTitle V Permits
August 20, 2025Earliest FRV determinationStateNew Source Performance Standards
August 20, 2025Earliest FRV determinationStatePrevention of Significant Deterioration of Air Quality
August 20, 2025Earliest FRV determinationStatePrevention of Significant Deterioration of Air Quality
June 30, 2025Earliest FRV determinationStateTitle V Permits
June 16, 2025Earliest FRV determinationStateTitle V Permits
May 26, 2025Earliest FRV determinationStateTitle V Permits
May 21, 2025Earliest FRV determinationStateNew Source Performance Standards
May 19, 2025Earliest FRV determinationStateTitle V Permits
May 5, 2025Earliest FRV determinationStateTitle V Permits
May 5, 2025Earliest FRV determinationStateNew Source Performance Standards
April 30, 2025Earliest FRV determinationStateTitle V Permits
March 13, 2025HPV day-zero determinationStateNew Source Performance Standards
March 3, 2025Earliest FRV determinationStateTitle V Permits
December 16, 2024Earliest FRV determinationStateMACT Standards (40 CFR Part 63)
November 27, 2024Earliest FRV determinationStatePrevention of Significant Deterioration of Air Quality
November 6, 2024Earliest FRV determinationStateTitle V Permits
November 1, 2024HPV day-zero determinationStatePrevention of Significant Deterioration of Air Quality
November 1, 2024HPV day-zero determinationStateNew Source Performance Standards
November 1, 2024HPV day-zero determinationStatePrevention of Significant Deterioration of Air Quality
November 1, 2024HPV day-zero determinationStatePrevention of Significant Deterioration of Air Quality
November 1, 2024HPV day-zero determinationStatePrevention of Significant Deterioration of Air Quality
November 1, 2024HPV day-zero determinationStateNew Source Performance Standards
November 1, 2024HPV day-zero determinationStateNew Source Performance Standards
November 1, 2024HPV day-zero determinationStatePrevention of Significant Deterioration of Air Quality
November 1, 2024HPV day-zero determinationStateNew Source Performance Standards
November 1, 2024HPV day-zero determinationStateNew Source Performance Standards

Enforcement and penalties

2 formal enforcement actions since January 1, 2017, 1 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 17, 2019Civil Judicial ActionU.S. EPA$0
April 5, 2019CAA 113D1 Action For PenaltyU.S. EPA$25,000

Informal enforcement

DateWhat EPA recordedAgency
August 5, 2026Notice of ViolationState
May 19, 2026Notice of ViolationState
October 20, 2025Notice of ViolationState
August 20, 2025Notice of ViolationState
January 13, 2025Notice of ViolationState
August 28, 2023Warning LetterState
June 29, 2022Notice of ViolationU.S. EPA

Stack tests

DateWhat EPA recordedAgency
April 9, 2026PassState
April 9, 2026PassState
April 8, 2026PassState
April 7, 2026PassState
February 5, 2026PassState
February 4, 2026PassState
February 4, 2026PassState
February 3, 2026PassState
October 7, 2025PassState
October 7, 2025PassState
July 9, 2025PassState
July 9, 2025PassState
July 8, 2025PassState
April 17, 2025PassState
April 16, 2025PassState
April 15, 2025PassState
January 29, 2025PassState
January 29, 2025PassState
January 28, 2025PassState
September 18, 2024PassState
September 17, 2024PassState
May 29, 2024PassState
May 22, 2024PassState
May 21, 2024PassState
February 13, 2024PassState
February 7, 2024FailState
January 23, 2024PassState
November 28, 2023PassState
November 2, 2023PassState
October 10, 2023PassState
September 6, 2023PassState
August 28, 2023PassState
August 22, 2023PassState
July 11, 2023PassState
June 28, 2023PassState
June 27, 2023PassState
August 23, 2022PassState
October 26, 2021PassState
March 27, 2018PassState
March 27, 2018PassState
February 26, 2018PassState
February 26, 2018PassState
July 20, 2017PassState
July 18, 2017PassState
April 11, 2017PassState
March 1, 2017PassState
February 28, 2017PassState

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 110000422962 there.

Nearby on the register

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

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