Clean Air Act stationary source · ICIS-AIR WI0000005503990050
FLINT HILLS RESOURCES PINE BEND LLC - WAUPUN FACILITY, Waupun, WI: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Synthetic minor sourceEmissions classification
- No Violation IdentifiedCurrent violation status, as filed
- 4Compliance evaluations since January 1, 2017
- 0High-priority violations since January 1, 2017
- 0Formal enforcement actions since January 1, 2017
FLINT HILLS RESOURCES PINE BEND LLC - WAUPUN FACILITY, at N4240 HWY 26, Waupun in Fond du Lac County, Wisconsin, 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”. 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 | FLINT HILLS RESOURCES PINE BEND LLC - WAUPUN FACILITY |
|---|---|
| ICIS-AIR ID | WI0000005503990050 |
| EPA facility registry ID | 110006143315 |
| Operating status | Operating |
| Emissions classification | Synthetic minor source |
| Current violation status (ICIS-AIR high-priority violation field) | No Violation Identified |
| Address | N4240 HWY 26, Waupun, WI 53963 |
| County | Fond du Lac County |
| In a nonattainment county | No (EPA Green Book) |
| Industry (NAICS) | Merchant wholesalers, nondurable goods (NAICS 4247) |
| 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 FLINT HILLS RESOURCES PINE BEND LLC - WAUPUN FACILITY 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
- 4Evaluations since January 1, 2017
- 2Full compliance evaluations
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| February 27, 2025 | FCE On-Site | State | Federally-Enforceable State Operating Permit - Non Title V |
| February 12, 2025 | PCE Off-Site | State | Federally-Enforceable State Operating Permit - Non Title V |
| January 24, 2025 | PCE Off-Site | State | Federally-Enforceable State Operating Permit - Non Title V |
| September 1, 2020 | FCE On-Site | State | Federally-Enforceable State Operating Permit - Non Title V |
Violations
- 2Violation 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 |
|---|---|---|---|
| January 22, 2025 | Earliest FRV determination | State | Federally-Enforceable State Operating Permit - Non Title V |
| February 10, 2022 | Earliest FRV determination | State | Federally-Enforceable State Operating Permit - Non Title V |
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
| Date | What EPA recorded | Agency |
|---|---|---|
| March 10, 2025 | Warning Letter | State |
Stack tests
- 5Stack tests since January 1, 2017
- 0Recorded as failed
| Date | What EPA recorded | Agency |
|---|---|---|
| August 21, 2025 | Pass | State |
| April 8, 2025 | Pass | State |
| November 9, 2021 | Pass | State |
| January 18, 2018 | Pass | State |
| November 8, 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 110006143315 there.
Nearby on the register
- Air-emissions sources in Fond du Lac County
- Every source record in Fond du Lac County, A to Z
- Air-emissions sources in Wisconsin
- Every source record in Wisconsin, A to Z
Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.