Hazardous waste · inspections by year
Chemical manufacturing inspected in Wisconsin in 2026
- 14Handlers inspected
- 15Inspections on record
- 20Handlers inspected in 2025
- 2ndAmong Wisconsin counties that year
Wisconsin has 14 hazardous waste handlers with at least one inspection on record during 2026, across 15 separate inspections. That compares with 20 in 2025. It is the 2nd largest of the 9 Wisconsin counties with three or more handlers inspected that year. Each row below carries the date the inspection was recorded, the agency that recorded it and the kind of inspection it was.
Other years
Inspections recorded in 2026
| Date | Handler | Where | Kind | Recorded by |
|---|---|---|---|---|
| 2026-09-10 | ERCO WORLDWIDE (USA) INC - PORT EDWARDS PLT | Nekoosa | FINANCIAL RECORD REVIEW | S |
| 2026-07-02 | HYDRITE CHEMICAL CO | Cottage Grove | FINANCIAL RECORD REVIEW | S |
| 2026-06-30 | STERLING WISCONSIN LLC | Germantown | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-06-04 | HALLMAN/ LINDSAY PAINT | Sun Prairie | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-05-27 | RUST-OLEUM DBA MULTICOLOR SPECIALTIES INC | Waupun | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-05-27 | COLUMBUS CHEMICAL INDUSTRIES INC | Columbus | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-05-26 | KINGCHEM LABORATORIES INC. | Saint Francis | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-05-20 | MATERION ADVANCED CHEMICALS INC | Milwaukee | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-05-06 | MAXPAX LLC | Walworth | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-04-22 | KDC/ONE NORTHERN LABS | Manitowoc | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-03-25 | AMRIZE BUILDING ENVELOPE LLC | Waukesha | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-03-02 | HYDRITE CHEMICAL CO | Cottage Grove | FINANCIAL RECORD REVIEW | S |
| 2026-02-18 | PPG INDUSTRIES | Oak Creek | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-02-04 | KITPACKERS & RESINLAB | Germantown | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-01-15 | SIEGFRIED GRAFTON INC. | Grafton | COMPLIANCE EVALUATION INSPECTION | S |
Figures from EPA’s RCRAInfo download.