Clean Air Act stationary source · ICIS-AIR IN0000001814100029
UNIFRAX I LLC, New Carlisle, IN: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Synthetic minor sourceEmissions classification
- No Violation IdentifiedCurrent violation status, as filed
- 2Compliance evaluations since January 1, 2017
- 0High-priority violations since January 1, 2017
- 1Formal enforcement actions since January 1, 2017
UNIFRAX I LLC, at 54401 SMILAX RD, New Carlisle in St. Joseph County, Indiana, is an operating synthetic minor 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”. St. Joseph 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 | UNIFRAX I LLC |
|---|---|
| ICIS-AIR ID | IN0000001814100029 |
| EPA facility registry ID | 110001306257 |
| Operating status | Operating |
| Emissions classification | Synthetic minor source |
| Current violation status (ICIS-AIR high-priority violation field) | No Violation Identified |
| Address | 54401 SMILAX RD, New Carlisle, IN 46552-9751 |
| County | St. Joseph County |
| In a nonattainment county | Yes (EPA Green Book) |
| Industry (NAICS) | Nonmetallic mineral product manufacturing (NAICS 3279) |
| SIC code | 3299 |
| 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 UNIFRAX I 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
- 2Evaluations since January 1, 2017
- 2Full compliance evaluations
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| July 19, 2023 | FCE On-Site | State | Federally-Enforceable State Operating Permit - Non Title V |
| August 16, 2018 | FCE On-Site | State | Federally-Enforceable State Operating Permit - Non Title V |
Violations
- 6Violation 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.
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| April 21, 2025 | Earliest FRV determination | State | Federally-Enforceable State Operating Permit - Non Title V |
| August 1, 2024 | Earliest FRV determination | State | Federally-Enforceable State Operating Permit - Non Title V |
| February 1, 2024 | Earliest FRV determination | State | Federally-Enforceable State Operating Permit - Non Title V |
| July 19, 2023 | Earliest FRV determination | State | Federally-Enforceable State Operating Permit - Non Title V |
| June 1, 2022 | Earliest FRV determination | State | Federally-Enforceable State Operating Permit - Non Title V |
| August 16, 2018 | Earliest FRV determination | State | Federally-Enforceable State Operating Permit - Non Title V |
Enforcement and penalties
1 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.
| Date | What EPA recorded | Agency | Penalty, as filed |
|---|---|---|---|
| June 26, 2026 | Administrative Order | State | $9,000 |
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| June 5, 2026 | Notice of Violation | State |
Stack tests
- 10Stack tests since January 1, 2017
- 0Recorded as failed
| Date | What EPA recorded | Agency |
|---|---|---|
| May 14, 2025 | Pass | State |
| May 14, 2025 | Pass | State |
| May 14, 2025 | Pass | State |
| May 14, 2025 | Pass | State |
| May 10, 2023 | Pass | State |
| May 10, 2023 | Pass | State |
| May 10, 2023 | Pass | State |
| July 7, 2020 | Pass | State |
| July 7, 2020 | Pass | State |
| July 7, 2020 | 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 110001306257 there.
Nearby on the register
- Air-emissions sources in St. Joseph County
- Every source record in St. Joseph 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.