Clean Air Act stationary source · ICIS-AIR WI0000005507300026
IMPERIAL INDUSTRIES, INC., Wausau, 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
IMPERIAL INDUSTRIES, INC., at P.O. BOX 1685, Wausau in Marathon 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”. Marathon 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 | IMPERIAL INDUSTRIES, INC. |
|---|---|
| ICIS-AIR ID | WI0000005507300026 |
| EPA facility registry ID | 110000768081 |
| Operating status | Operating |
| Emissions classification | Synthetic minor source |
| Current violation status (ICIS-AIR high-priority violation field) | No Violation Identified |
| Address | P.O. BOX 1685, Wausau, WI 544021685 |
| County | Marathon County |
| In a nonattainment county | Yes (EPA Green Book) |
| Industry (NAICS) | Fabricated metal product manufacturing (NAICS 3324) |
| SIC code | 3443 |
| 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 yet include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs IMPERIAL INDUSTRIES, INC. 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 |
|---|---|---|---|
| March 12, 2026 | PCE Off-Site | State | Federally-Enforceable State Operating Permit - Non Title V |
| July 15, 2025 | PCE Off-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| April 3, 2023 | FCE On-Site | State | Federally-Enforceable State Operating Permit - Non Title V |
| November 28, 2017 | FCE On-Site | State | Federally-Enforceable State Operating Permit - Non Title V |
Violations
- 1Violation 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 |
|---|---|---|---|
| July 15, 2025 | Earliest FRV determination | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
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 |
|---|---|---|
| July 15, 2025 | Warning Letter | State |
Stack tests
- 0Stack tests since January 1, 2017
- 0Recorded as failed
EPA’s stack test file holds no test at ICIS-AIR WI0000005507300026 since January 1, 2017.
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.
Watch this source
One source, $99/month. A source: the register entry for a plant, refinery, kiln, generating station, or other fixed installation the agency tracks under the Clean Air Act. Choose “One source” and enter this source’s ICIS-AIR ID, WI0000005507300026.
Start the watch
- One source — $99/month
- One county — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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 110000768081 there.
Nearby on the register
- Air-emissions sources in Marathon County
- Every source record in Marathon 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.