Clean Air Act stationary source · ICIS-AIR IN0000001812900005
MPLX TERMINALS LLC - MT VERNON TERMINAL, Mount Vernon, IN: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Major sourceEmissions classification
- No Violation IdentifiedCurrent violation status, as filed
- 5Compliance evaluations since January 1, 2017
- 0High-priority violations since January 1, 2017
- 1Formal enforcement actions since January 1, 2017
MPLX TERMINALS LLC - MT VERNON TERMINAL, at 129 S BARTER ST, Mount Vernon in Posey 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 “No Violation Identified”. 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 | MPLX TERMINALS LLC - MT VERNON TERMINAL |
|---|---|
| ICIS-AIR ID | IN0000001812900005 |
| EPA facility registry ID | 110064142850 |
| Operating status | Operating |
| Emissions classification | Major source |
| Current violation status (ICIS-AIR high-priority violation field) | No Violation Identified |
| Address | 129 S BARTER ST, Mount Vernon, IN 47620-1729 |
| County | Posey County |
| In a nonattainment county | No (EPA Green Book) |
| Industry (NAICS) | Merchant wholesalers, nondurable goods (NAICS 4247) |
| SIC code | 5171 |
| 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 MPLX TERMINALS LLC - MT VERNON TERMINAL 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
- 5Evaluations since January 1, 2017
- 5Full compliance evaluations
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| February 17, 2026 | FCE On-Site | State | Title V Permits |
| June 18, 2024 | FCE On-Site | State | Title V Permits |
| November 4, 2021 | FCE On-Site | State | Title V Permits |
| November 19, 2019 | FCE On-Site | State | Title V Permits |
| March 1, 2018 | FCE On-Site | State | Title V Permits |
Violations
- 3Violation 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 5, 2023 | Earliest FRV determination | State | Title V Permits |
| July 1, 2019 | Earliest FRV determination | State | Title V Permits |
| January 30, 2018 | Earliest FRV determination | State | Title V Permits |
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 |
|---|---|---|---|
| December 5, 2025 | Administrative Order | State | $3,500 |
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| August 20, 2025 | Notice of Violation | State |
Stack tests
- 2Stack tests since January 1, 2017
- 0Recorded as failed
| Date | What EPA recorded | Agency |
|---|---|---|
| September 13, 2022 | Pass | State |
| November 14, 2018 | 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 110064142850 there.
Nearby on the register
- Air-emissions sources in Posey County
- Every source record in Posey 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.