Laramie County, WY
The federal environmental record for Laramie County (population 100,984): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
1
Superfund NPL sites
15
federal cleanup sites
0
PFAS-detecting water systems
9
TRI facilities
30
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| F.E. Warren Air Force Base | Cheyenne | on the NPL | 02/21/1990 |
Drinking water: PFAS testing
No public water system serving Laramie 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)
9 facilities in Laramie filed TRI reports for 2024, totalling 6.5M lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| DYNO NOBEL INC-CHEYENNE PLANT | CHEYENNE | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia | 6.5M lb |
| CHEYENNE RENEWABLE DIESEL CO LLC | CHEYENNE | Xylene (mixed isomers), Toluene | 891 lb |
| KNIFE RIVER CHEYENNE | CHEYENNE | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Polycyclic aromatic compounds | 120 lb |
| VOESTALPINE RAILWAY SYSTEMS NORTRAK INC. | CHEYENNE | Manganese | 12 lb |
| U.S. DOD USAF WYOMING ANG | CHEYENNE | Naphthalene | 3 lb |
| ERGON ASPHALT & EMULSIONS INC. - CHEYENNE | CHEYENNE | - | 0 lb |
| BRENNTAG PACIFIC INC. | CHEYENNE | - | 0 lb |
| CRAFCO INC. - CHEYENNE | CHEYENNE | - | 0 lb |
| US DOD USAF FE WARREN AFB (PART) | FE WARREN AFB | Lead | 0 lb |
Underground fuel tanks
EPA's UST Finder records 385 tank facilities in Laramie: 231 tanks in service and 828 closed. 125 fuel releases are on record, of which 30 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Laramie 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 Laramie, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- BLM-LONDONERRY MINE/MAXVILLE TAILINGSPHILIPSBURG
- BLM-LONDONERRY MINE/MAXVILLE TAILINGSPHILIPSBURG
- CHEYENNE PCE PLUMECHEYENNE
- F.E. WARREN AIR FORCE BASECHEYENNE
- FT. F.E. WARREN TARGET AND MANEUVER RANGECHEYENNE
- HIGH PLAINS GRASSLAND RESEARCH STATIONCHEYENNE
- TATOOINE INDUSTRIESBURNS
- U S AIR FORCE WYOMING AIR NATIONAL GUARDCHEYENNE
- WARREN F.E. AFB ATLAS "D" MISSILE SITE # 1CHEYENNE
- WARREN F.E. AFB ATLAS "D" MISSILE SITE # 2CHEYENNE
- WARREN F.E. AFB ATLAS "D" MISSILE SITE # 3HILLSDALE
- WARREN F.E. AFB ATLAS "D" MISSILE SITE # 4GRANITE CANON
- WARREN F.E. AFB ATLAS "E" MISSILE SITE # 6MERIDEN
- WARREN F.E. AFB ATLAS "E" MISSILE SITE # 7PINE BLUFFS
- WYOMING ARMY NG MRS PGMCHEYENNE