CheckPFAS

ZIP Code 82633

Low Level
Low Level PFAS Risk Level
2
PFAS Detected
0
Above EPA Limits
1
Water System
N/A
Highest % of MCL

DOUGLAS, CITY OF

WY5600137 Low Level
Water Type
Groundwater
PFAS Detected
2
Above MCL
0
State
Wyoming
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
lithium
30000.00pptNo federal limitUnregulated
PFBA
Perfluorobutanoic acid
10.80pptNo federal limitUnregulated

Data source: EPA Unregulated Contaminant Monitoring Rule, 5th cycle (UCMR 5) — January 2026 release.

UCMR 5 tested ~10,000 public water systems serving more than 25 people between 2023-2025 for 29 PFAS compounds.

Detection values represent the highest single-sample result measured at entry points to the distribution system.

View raw EPA data →