Big Horn County, WY
The federal environmental record for Big Horn County (population 12,018): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
3
federal cleanup sites
0
PFAS-detecting water systems
3
TRI facilities
15
open tank releases
Drinking water: PFAS testing
No public water system serving Big Horn reported a PFAS detection in the UCMR5 national testing round. Systems serving under 3,300 people were only sampled in part, so absence from this table is not proof of absence in the water.
Facilities reporting toxic releases (2024)
3 facilities in Big Horn filed TRI reports for 2024, totalling 27k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| WESTERN SUGAR COOPERATIVE LOVELL FACTORY | LOVELL | Ammonia | 27k lb |
| GEORGIA-PACIFIC GYPSUM LLC - LOVELL PLANT | LOVELL | Lead compounds | 13 lb |
| CETCO | LOVELL | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 121 tank facilities in Big Horn: 52 tanks in service and 306 closed. 63 fuel releases are on record, of which 15 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Big Horn as Zone 1, the highest predicted indoor radon levels (over 4 pCi/L average). Radon and air quality are covered in depth on lung.com.
The record for one specific address
County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.
Get the report - $39All federal cleanup sites on file
The wider Superfund enterprise inventory (SEMS) for Big Horn, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- BASIN SCHOOL CHEMICALSBASIN
- BLM-SOUTH BIGHORN COUNTY LANDFILLGREYBULL
- COWBOY TIMBER TREATINGMANDERSON