Hazardous waste · violations by year
Hazardous waste violations in Wyoming in 2025
- 27Handlers cited
- 34Violations on record
- 8Handlers cited in 2024
- 1stAmong Wyoming counties that year
Wyoming has 27 hazardous waste handlers with at least one violation on record during 2025, across 34 separate violations. That compares with 8 in 2024. Each row below carries the date the violation was recorded, the agency that recorded it and the kind of violation it was.
Other years
Violations recorded in 2025
| Date | Handler | Where | Kind | Recorded by |
|---|---|---|---|---|
| 2025-09-30 | WYOMING REFINING COMPANY | Newcastle | Standards Applicable to Generators of HW: General | S |
| 2025-09-30 | UNION PACIFIC RAILROAD - CHEYENNE RAILROAD FACILITY | Cheyenne | Standards for Used Oil: Generators | S |
| 2025-09-26 | WYOMING ARMY NATIONAL GUARD-WYARNG- CAMP GUERNSEY, GUERNSEY, WYOMING | Guernsey | Standards for Used Oil: Generators | S |
| 2025-09-26 | WYOMING ARMY NATIONAL GUARD-WYARNG- CAMP GUERNSEY, GUERNSEY, WYOMING | Guernsey | Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators | S |
| 2025-09-25 | DYNO NOBEL INC.-CHEYENNE PLANT | Cheyenne | Standards Applicable to Generators of HW: General | S |
| 2025-09-25 | AURUM STANDARDS GROUP | Laramie | Standards Applicable to Generators of HW: Alternative Standards for Episodic Generators | S |
| 2025-09-25 | PLENTY UNLIMITED | Laramie | Standards Applicable to Generators of HW: General | S |
| 2025-09-24 | TRI STATE OIL RECLAIMERS - CHEYENNE | Cheyenne | Violation of a permit condition or requirement | S |
| 2025-09-16 | CASPER BALER/TRANSFER FACILITY | Casper | Standards for Universal Waste Management: Standards for Small Quantity Handlers | S |
| 2025-09-15 | AVIAT AIRCRAFT, INC | Afton | Standards Applicable to Generators of HW: General | S |
| 2025-09-12 | CHAMPIONX, LLC-PLANT 0108 | Evansville | Standards for Universal Waste Management: Standards for Large Quantity Handlers | S |
| 2025-09-11 | SECOND WIND PERFORMANCE | Casper | ID and Listing of HW: General | S |
| 2025-08-14 | WYOMING DIESEL SERVICE | Rawlins | Standards for Used Oil: Generators | S |
| 2025-08-13 | YELLOWSTONE NAT'L PK SRV (CANYON VILLAGE) | Yellowstone Nat'L Park | Standards for Universal Waste Management: Standards for Small Quantity Handlers | S |
| 2025-08-13 | YELLOWSTONE NATIONAL PARK - MAMMOTH BONE YARD | Yellowstone National Park | ID and Listing of HW: General | S |
| 2025-08-13 | YELLOWSTONE NATIONAL PARK - MAMMOTH BONE YARD | Yellowstone National Park | Standards Applicable to Generators of HW: General | S |
| 2025-08-13 | YELLOWSTONE NATIONAL PARK - MAMMOTH BONE YARD | Yellowstone National Park | Standards for Universal Waste Management: Standards for Small Quantity Handlers | S |
| 2025-08-13 | YELLOWSTONE NATIONAL PARK SERVICE MAMMOTH PAINT SHOP | Yellowstone National Park | Standards Applicable to Generators of HW: General | S |
| 2025-08-13 | YNP MAMMOTH SUPPLY CENTER | Yellowstone National Park | Standards for Universal Waste Management: Standards for Small Quantity Handlers | S |
| 2025-08-13 | YNP MAMMOTH ELECTRICAL SHOP | Yellowstone National Park | ID and Listing of HW: General | S |
| 2025-07-22 | ROAD TESTED PARTS, LLC DBA MR. R'S AUTO SALVAGE | Buffalo | Standards for Used Oil: Generators | S |
| 2025-07-16 | EXCAL CORP | Mills | ID and Listing of HW: General | S |
| 2025-07-16 | EXCAL CORP | Mills | Standards for Used Oil: Generators | S |
| 2025-07-16 | EXCAL CORP | Mills | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | S |
| 2025-07-09 | TUBOSCOPE INC.-TUBOSCOPE ROD/TUBING PLANT | Casper | Standards for Universal Waste Management: Standards for Small Quantity Handlers | S |
| 2025-06-26 | XANTERRA SERVICES BRIDGE BAY MARINA SHOP | Lake Station | Standards for Used Oil: Generators | S |
| 2025-06-25 | YELLOWSTONE NATIONAL PARK DELAWARE NORTH SERVICE STATION | Yellowstone National Park | Standards for Used Oil: Generators | S |
| 2025-06-17 | L&H INDUSTRIAL INC. | Sheridan | Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators | S |
| 2025-05-21 | FEDERAL EXPRESS - ZCAS | Casper | Standards for Universal Waste Management: Standards for Small Quantity Handlers | S |
| 2025-05-14 | DEFENSE TECHNOLOGY CORP | Casper | Standards for Universal Waste Management: Standards for Small Quantity Handlers | S |
| 2025-04-02 | FEDEX FREIGHT, INC. CSR | Casper | Standards Applicable to Generators of HW: Manifest Requirements Applicable to Small and Large Quantity Generators | S |
| 2025-04-02 | FEDEX FREIGHT, INC. CSR | Casper | Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators | S |
| 2025-04-02 | XPO LOGISTICS FREIGHT, INC.-UWY | Cheyenne | Standards Applicable to Generators of HW: Manifest Requirements Applicable to Small and Large Quantity Generators | S |
| 2025-04-02 | XPO LOGISTICS FREIGHT, INC.-UWY | Cheyenne | Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators | S |
Figures from EPA’s RCRAInfo download.