Clean Air Act stationary source · ICIS-AIR IL000155010AAJ
MARQUIS ENERGY LLC, Hennepin, IL: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Major sourceEmissions classification
- No Violation IdentifiedCurrent violation status, as filed
- 14Compliance evaluations since January 1, 2017
- 0High-priority violations since January 1, 2017
- 7Formal enforcement actions since January 1, 2017
MARQUIS ENERGY LLC, at 11953 PRAIRIE INDUSTRIAL PKWY, Hennepin in Putnam County, Illinois, 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 | MARQUIS ENERGY LLC |
|---|---|
| ICIS-AIR ID | IL000155010AAJ |
| EPA facility registry ID | 110071219957 |
| Operating status | Operating |
| Emissions classification | Major source |
| Current violation status (ICIS-AIR high-priority violation field) | No Violation Identified |
| Address | 11953 PRAIRIE INDUSTRIAL PKWY, Hennepin, IL 61327-5160 |
| County | Putnam County |
| In a nonattainment county | No (EPA Green Book) |
| Industry (NAICS) | Chemical manufacturing (NAICS 3251) |
| SIC code | 2869 |
| 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 MARQUIS ENERGY 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
- 14Evaluations since January 1, 2017
- 3Full compliance evaluations
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| September 5, 2025 | PCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| August 28, 2024 | FCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| July 10, 2024 | PCE On-Site | U.S. EPA | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| April 18, 2024 | PCE On-Site | U.S. EPA | New Source Performance Standards |
| August 23, 2023 | PCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| August 31, 2022 | PCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| July 27, 2022 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| August 25, 2021 | FCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| August 19, 2021 | PCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| February 6, 2020 | PCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| February 6, 2020 | PCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| February 6, 2020 | PCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| February 20, 2019 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| April 12, 2018 | FCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
Violations
- 7Violation 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 |
|---|---|---|---|
| November 20, 2023 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| August 23, 2023 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| May 17, 2021 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| July 2, 2020 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| December 30, 2019 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| April 11, 2019 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| November 5, 2017 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
Enforcement and penalties
7 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.
| Date | What EPA recorded | Agency | Penalty, as filed |
|---|---|---|---|
| July 8, 2024 | Administrative Order | State | $0 |
| May 6, 2024 | Administrative Order | State | $0 |
| September 28, 2021 | Administrative Order | State | $0 |
| October 1, 2020 | Administrative Order | State | $0 |
| April 2, 2020 | Administrative Order | State | $0 |
| October 1, 2019 | Administrative Order | State | $0 |
| January 8, 2018 | Administrative Order | State | $0 |
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| October 10, 2025 | Notice of Violation | U.S. EPA |
| February 15, 2024 | Notice of Violation | State |
| November 20, 2023 | Notice of Violation | State |
| August 30, 2022 | Notice of Violation | State |
| January 3, 2022 | Notice of Violation | State |
| June 8, 2021 | Notice of Violation | State |
| July 8, 2020 | Notice of Violation | State |
| January 22, 2020 | Notice of Violation | State |
| May 22, 2019 | Notice of Violation | State |
| November 16, 2017 | Notice of Violation | State |
Stack tests
- 5Stack tests since January 1, 2017
- 0Recorded as failed
| Date | What EPA recorded | Agency |
|---|---|---|
| January 5, 2022 | Pass | State |
| December 7, 2021 | Pass | State |
| August 15, 2019 | Pass | State |
| June 26, 2019 | Pass | State |
| January 31, 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 110071219957 there.
Nearby on the register
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- Every source record in Putnam County, A to Z
- Air-emissions sources in Illinois
- Every source record in Illinois, A to Z
Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.