Clean Air Act stationary source · ICIS-AIR PA000283747
MERSEN USA/ST MARYS, Saint Marys, PA: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Major sourceEmissions classification
- No Violation IdentifiedCurrent violation status, as filed
- 70Compliance evaluations since January 1, 2017
- 1High-priority violations since January 1, 2017
- 8Formal enforcement actions since January 1, 2017
MERSEN USA/ST MARYS, at 1032 TROUT RUN RD, Saint Marys in Elk County, Pennsylvania, 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 | MERSEN USA/ST MARYS |
|---|---|
| ICIS-AIR ID | PA000283747 |
| EPA facility registry ID | 110000330473 |
| Operating status | Operating |
| Emissions classification | Major source |
| Current violation status (ICIS-AIR high-priority violation field) | No Violation Identified |
| Address | 1032 TROUT RUN RD, Saint Marys, PA 15857-1439 |
| County | Elk County |
| In a nonattainment county | No (EPA Green Book) |
| Industry (NAICS) | Electrical equipment and appliance manufacturing (NAICS 3359) |
| SIC code | 3624 |
| EPA region | 03 |
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 MERSEN USA/ST MARYS 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
- 70Evaluations since January 1, 2017
- 7Full compliance evaluations
The newest 50 of 70.
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| November 4, 2026 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| September 23, 2026 | PCE On-Site Monitoring/Sampling | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| July 20, 2026 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| June 9, 2026 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| May 21, 2026 | FCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| April 23, 2026 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| January 28, 2026 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| October 27, 2025 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| August 4, 2025 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| April 29, 2025 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| March 24, 2025 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| February 4, 2025 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| October 28, 2024 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| July 16, 2024 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| May 13, 2024 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| April 26, 2024 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| February 9, 2024 | FCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| January 5, 2024 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| January 5, 2024 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| September 12, 2023 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| May 31, 2023 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| March 13, 2023 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| January 26, 2023 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| October 31, 2022 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| September 1, 2022 | FCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| August 30, 2022 | PCE On-Site Monitoring/Sampling | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| July 28, 2022 | PCE On-Site Monitoring/Sampling | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| July 18, 2022 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| June 16, 2022 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| June 16, 2022 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| April 5, 2022 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| February 23, 2022 | PCE On-Site Monitoring/Sampling | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| October 18, 2021 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| July 16, 2021 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| May 5, 2021 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| April 28, 2021 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| January 19, 2021 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| October 28, 2020 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| October 14, 2020 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| October 9, 2020 | FCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| July 22, 2020 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| April 6, 2020 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| March 11, 2020 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| January 22, 2020 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| November 27, 2019 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| November 27, 2019 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| September 4, 2019 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| September 4, 2019 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| May 2, 2019 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| March 11, 2019 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
Violations
- 15Violation determinations since January 1, 2017
- 1Of 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 |
|---|---|---|---|
| January 5, 2024 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| January 26, 2023 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| October 31, 2022 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| August 17, 2022 | HPV day-zero determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits |
| June 16, 2022 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| June 16, 2022 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| October 18, 2021 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| July 16, 2021 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| July 22, 2020 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| January 22, 2020 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| November 27, 2019 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| November 1, 2018 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| July 23, 2018 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| April 19, 2017 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| March 1, 2017 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
Enforcement and penalties
8 formal enforcement actions since January 1, 2017, 8 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 |
|---|---|---|---|
| August 8, 2023 | Administrative Order | State | $319 |
| April 12, 2023 | Administrative Order | State | $34,772 |
| May 11, 2022 | Administrative Order | State | $4,865 |
| May 14, 2020 | Administrative Order | State | $2,552 |
| March 29, 2019 | Administrative Order | State | $5,051 |
| July 24, 2017 | Administrative Order | State | $231 |
| April 13, 2017 | Administrative Order | State | $2,387 |
| January 3, 2017 | Administrative Order | State | $27,082 |
Informal enforcement
EPA’s informal action file holds no notice or warning for ICIS-AIR PA000283747 since January 1, 2017.
Stack tests
- 8Stack tests since January 1, 2017
- 0Recorded as failed
| Date | What EPA recorded | Agency |
|---|---|---|
| October 1, 2025 | Pass | State |
| September 30, 2025 | Pass | State |
| August 7, 2025 | Pass | State |
| July 20, 2023 | Pass | State |
| February 25, 2022 | Pass | State |
| August 19, 2020 | Pass | State |
| August 23, 2019 | Pass | State |
| July 24, 2019 | 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 110000330473 there.
Nearby on the register
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- Every source record in Elk County, A to Z
- Air-emissions sources in Pennsylvania
- Every source record in Pennsylvania, A to Z
Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.