Hazardous waste · inspections by year
Large quantity generators inspected in Yellowstone County, Montana in 2026
- 5Handlers inspected
- 11Inspections on record
- 6Handlers inspected in 2025
- 13thAmong Montana counties that year
Yellowstone County, Montana has 5 hazardous waste handlers with at least one inspection on record during 2026, across 11 separate inspections. That compares with 6 in 2025. It is the 13th largest of the 19 Montana 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
Comparable counties in Montana, 2026
- Cascade County 8
- Custer County 3
- Dawson County 7
- Flathead County 10
- Gallatin County 15
- Lewis And Clark County 10
- Missoula County 13
- Park County 3
- Ravalli County 5
- Silver Bow County 5
Inspections recorded in 2026
| Date | Handler | Where | Kind | Recorded by |
|---|---|---|---|---|
| 2026-06-25 | PAR MONTANA LLC | Billings | FINANCIAL RECORD REVIEW | S |
| 2026-06-09 | JUPITER SULPHUR LLC - BILLINGS | Billings | NON-FINANCIAL RECORD REVIEW | S |
| 2026-05-06 | CHS INC LAUREL REFINERY | Laurel | NON-FINANCIAL RECORD REVIEW | S |
| 2026-04-09 | PHILLIPS 66 COMPANY BILLINGS REFINERY | Billings | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-04-01 | PHILLIPS 66 COMPANY BILLINGS REFINERY | Billings | FINANCIAL RECORD REVIEW | S |
| 2026-03-16 | CHS INC LAUREL REFINERY | Laurel | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-03-16 | CHS INC LAUREL REFINERY | Laurel | CORRECTIVE ACTION COMPLIANCE EVALUATION | S |
| 2026-03-12 | BRENNTAG PACIFIC - BILLINGS | Billings | NON-FINANCIAL RECORD REVIEW | S |
| 2026-03-04 | PHILLIPS 66 COMPANY BILLINGS REFINERY | Billings | NON-FINANCIAL RECORD REVIEW | S |
| 2026-03-04 | PAR MONTANA LLC | Billings | NON-FINANCIAL RECORD REVIEW | S |
| 2026-01-28 | JUPITER SULPHUR LLC - BILLINGS | Billings | NON-FINANCIAL RECORD REVIEW | S |
Figures from EPA’s RCRAInfo download.