Non-Compliance
RCRA
YNP FORMER MAMMOTH HYDRO PLANT
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $0 in total penalties since records began.
- Address
-
MAMMOTH HYDRO PLANT
YELLOWSTONE NATIONAL PARK, WY 82190
View on map ↗ - County
- PARK County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221111
- Inspections
- 1 · last Aug 13, 2025
- Total Penalties
- $0
- Registry ID
- 110072091931
Compliance Status (Last 12 Quarters)
Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.
3
Hazardous Waste (RCRA)
Qtrs Non-Compliant
Qtrs Non-Compliant
Compliance Violations
Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.
| Program | Type | Violation Date | Return to Compliance | Status |
|---|---|---|---|---|
| rcra | ID and Listing of HW: General | Aug 13, 2025 | — | Open |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Aug 13, 2025 | — | Open |
Other facilities in PARK County, WY
ABSAROKA LODGE
WAPITI, WY
CLARK LANDFILL
(UNKNOWN CITY), WY
MEETEETSE TREATED WATER TRANSMISSION PIPELINE PROJECT
(UNKNOWN CITY), WY
PARK COUNTY SCHOOL DISTRICT 6
CODY, WY
CREEKSIDE LODGE
, WY
Y TEX CORP
CODY, WY
· Manufacturing