Yellowstone County, MT
The federal environmental record for Yellowstone County (population 170,843): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
2
Superfund NPL sites
5
federal cleanup sites
0
PFAS-detecting water systems
13
TRI facilities
151
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Billings PCE | Billings | on the NPL | 09/09/2021 |
| Lockwood Solvent Ground Water Plume | Billings | on the NPL | 12/01/2000 |
Drinking water: PFAS testing
No public water system serving Yellowstone 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)
13 facilities in Yellowstone filed TRI reports for 2024, totalling 808k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| CHS INC. LAUREL REFINERY | LAUREL | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia | 298k lb |
| PAR MONTANA BILLINGS REFINERY | BILLINGS | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Ethylene glycol | 184k lb |
| JUPITER SULPHUR LLC | BILLINGS | Ammonia, Hydrogen sulfide | 146k lb |
| PHILLIPS 66 CO BILLINGS REFINERY | BILLINGS | Xylene (mixed isomers), Toluene | 86k lb |
| WESTERN SUGAR COOPERATIVE.130130 | BILLINGS | Barium And Barium Compounds, Ammonia | 77k lb |
| MONTANA SULPHUR & CHEMICAL CO | BILLINGS | Hydrogen sulfide, Carbon disulfide | 18k lb |
| JTL GROUP BILLINGS (DBA - KNIFE RIVER BILLINGS) | BILLINGS | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Polycyclic aromatic compounds | 420 lb |
| KNIFE RIVER BILLINGS EAST SITE | BILLINGS | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Polycyclic aromatic compounds | 69 lb |
| WESTERN EMULSIONS INC BILLINGS PLANT | BILLINGS | Polycyclic aromatic compounds | 0 lb |
| BRENNTAG PACIFIC INC MOSSMAIN LN | BILLINGS | - | 0 lb |
| CITYSERVICEVALCON LLC BILLINGS BULK FACILITY | BILLINGS | Polycyclic aromatic compounds | 0 lb |
| QUIKRETE - MONTANA PLANT | BILLINGS | Lead | 0 lb |
| FORTERRA CONCRETE PRODUCTS - BILLINGS | BILLINGS | Lead | 0 lb |
Underground fuel tanks
EPA's UST Finder records 540 tank facilities in Yellowstone: 361 tanks in service and 1,261 closed. 472 fuel releases are on record, of which 151 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Yellowstone as Zone 2, moderate predicted indoor radon (2 to 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 Yellowstone, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- BILLINGS PCEBILLINGS
- BURLINGTON NORTHERN FUELING SITE-LAURELLAUREL
- LOCKWOOD SOLVENT GROUND WATER PLUMEBILLINGS
- ROUNDUP ROAD BURIED DRUMSSHEPHERD
- ROYSTON US ARMY RESERVE CENTERBILLINGS