Clean Air Act stationary source · ICIS-AIR UT0000004900300002
NUCOR STEEL, Plymouth, UT: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Major sourceEmissions classification
- No Violation IdentifiedCurrent violation status, as filed
- 10Compliance evaluations since January 1, 2017
- 0High-priority violations since January 1, 2017
- 0Formal enforcement actions since January 1, 2017
NUCOR STEEL, at THREE MILES WEST OF PLYMOUTH, Plymouth in Box Elder County, Utah, 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”. Box Elder 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 filed | NUCOR STEEL |
|---|---|
| ICIS-AIR ID | UT0000004900300002 |
| EPA facility registry ID | 110020079537 |
| Operating status | Operating |
| Emissions classification | Major source |
| Current violation status (ICIS-AIR high-priority violation field) | No Violation Identified |
| Address | THREE MILES WEST OF PLYMOUTH, Plymouth, UT 84330 |
| County | Box Elder County |
| In a nonattainment county | Yes (EPA Green Book) |
| Industry (NAICS) | Primary metal manufacturing (NAICS 3311) |
| SIC code | 3312 |
| EPA region | 08 |
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 NUCOR STEEL 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
- 10Evaluations since January 1, 2017
- 10Full compliance evaluations
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| April 23, 2026 | FCE On-Site | State | Title V Permits |
| May 22, 2025 | FCE On-Site | State | Title V Permits |
| April 18, 2024 | FCE On-Site | State | Title V Permits |
| April 27, 2023 | FCE On-Site | State | Title V Permits |
| June 16, 2022 | FCE On-Site | State | Title V Permits |
| February 11, 2021 | FCE On-Site | State | Title V Permits |
| December 3, 2019 | FCE On-Site | State | Title V Permits |
| May 29, 2019 | FCE On-Site | State | Title V Permits |
| February 27, 2018 | FCE On-Site | State | Title V Permits |
| February 14, 2017 | FCE On-Site | State | Title V Permits |
Violations
- 0Violation determinations since January 1, 2017
- 0Of 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.
EPA’s violation history file holds no violation for ICIS-AIR UT0000004900300002 since January 1, 2017.
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
EPA’s informal action file holds no notice or warning for ICIS-AIR UT0000004900300002 since January 1, 2017.
Stack tests
- 27Stack tests since January 1, 2017
- 0Recorded as failed
| Date | What EPA recorded | Agency |
|---|---|---|
| September 11, 2025 | Pass | State |
| September 5, 2025 | Pass | State |
| September 4, 2025 | Pass | State |
| September 26, 2024 | Pass | State |
| August 9, 2024 | Pass | State |
| August 5, 2024 | Pass | State |
| August 4, 2023 | Pass | State |
| August 1, 2023 | Pass | State |
| August 1, 2023 | Pass | State |
| November 3, 2022 | Pass | State |
| August 24, 2022 | Pass | State |
| August 22, 2022 | Pass | State |
| September 3, 2021 | Pass | State |
| September 1, 2021 | Pass | State |
| August 31, 2021 | Pass | State |
| August 10, 2020 | Pass | State |
| August 10, 2020 | Pass | State |
| August 26, 2019 | Pass | State |
| August 25, 2019 | Pass | State |
| August 22, 2019 | Pass | State |
| September 8, 2018 | Pass | State |
| September 6, 2018 | Pass | State |
| September 6, 2018 | Pass | State |
| August 22, 2017 | Pass | State |
| August 21, 2017 | Pass | State |
| August 18, 2017 | Pass | State |
| August 15, 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 110020079537 there.
Nearby on the register
- Air-emissions sources in Box Elder County
- Every source record in Box Elder County, A to Z
- Air-emissions sources in Utah
- Every source record in Utah, A to Z
Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.