Clean Air Act stationary source · ICIS-AIR IN0000001815700001
ARCONIC US LLC, Lafayette, IN: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Major sourceEmissions classification
- Unaddressed-StateCurrent violation status, as filed
- 7Compliance evaluations since January 1, 2017
- 3High-priority violations since January 1, 2017
- 2Formal enforcement actions since January 1, 2017
ARCONIC US LLC, at 3131 E MAIN ST, Lafayette in Tippecanoe County, Indiana, 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 filed | ARCONIC US LLC |
|---|---|
| ICIS-AIR ID | IN0000001815700001 |
| EPA facility registry ID | 110000404198 |
| Operating status | Operating |
| Emissions classification | Major source |
| Current violation status (ICIS-AIR high-priority violation field) | Unaddressed-State |
| Address | 3131 E MAIN ST, Lafayette, IN 47905-2272 |
| County | Tippecanoe County |
| In a nonattainment county | No (EPA Green Book) |
| Industry (NAICS) | Primary metal manufacturing (NAICS 3313) |
| SIC code | 3341 |
| EPA region | 05 |
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 ARCONIC US 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
- 7Evaluations since January 1, 2017
- 5Full compliance evaluations
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| August 11, 2025 | FCE On-Site | State | Title V Permits |
| August 24, 2023 | FCE On-Site | State | Title V Permits |
| April 27, 2022 | PCE On-Site | U.S. EPA | Hazardous Air Pollutants |
| August 4, 2021 | FCE On-Site | State | Title V Permits |
| September 19, 2019 | FCE On-Site | State | Title V Permits |
| November 8, 2017 | PCE On-Site | U.S. EPA | National Emission Standards for Hazardous Air Pollutants (40 CFR Part 61); Operating Permits |
| September 29, 2017 | FCE On-Site | State | Title V Permits |
Violations
- 6Violation determinations since January 1, 2017
- 3Of them high-priority
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.
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| March 11, 2024 | HPV day-zero determination | State | Title V Permits |
| December 12, 2023 | Earliest FRV determination | State | Title V Permits |
| November 22, 2023 | HPV day-zero determination | State | Title V Permits |
| August 24, 2023 | Earliest FRV determination | State | Title V Permits |
| June 4, 2020 | Earliest FRV determination | State | Title V Permits |
| September 12, 2019 | HPV day-zero determination | State | Title V Permits |
Enforcement and penalties
2 formal enforcement actions since January 1, 2017, 2 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.
| Date | What EPA recorded | Agency | Penalty, as filed |
|---|---|---|---|
| July 20, 2022 | Administrative Order | State | $3,600 |
| April 9, 2019 | Administrative Order | State | $28,750 |
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| September 19, 2025 | Notice of Violation | State |
| May 31, 2022 | Notice of Violation | State |
Stack tests
- 10Stack tests since January 1, 2017
- 0Recorded as failed
| Date | What EPA recorded | Agency |
|---|---|---|
| October 12, 2022 | Pass | State |
| October 12, 2022 | Pass | State |
| October 18, 2017 | Pass | State |
| October 18, 2017 | Pass | State |
| October 18, 2017 | Pass | State |
| October 18, 2017 | Pass | State |
| September 25, 2017 | Pass | State |
| September 25, 2017 | Pass | State |
| September 25, 2017 | Pass | State |
| February 28, 2017 | Pass | State |
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 110000404198 there.
Nearby on the register
- Air-emissions sources in Tippecanoe County
- Every source record in Tippecanoe County, A to Z
- Air-emissions sources in Indiana
- Every source record in Indiana, A to Z
Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.