ZIP Code 63025
Low Level5
PFAS Detected
0
Above EPA Limits
3
Water Systems
N/A
Highest % of MCL
EUREKA PWS
MO6010258 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Missouri
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 222000.00ppt | No federal limit | — | Unregulated |
MO AMERICAN ST LOUIS ST CHARLES COUNTIES
MO6010716 Low LevelWater Type
Surface Water
PFAS Detected
2
Above MCL
0
State
Missouri
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 86800.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 5.10ppt | No federal limit | — | Unregulated |
JEFFERSON COUNTY PWSD 6
MO6024298 Low LevelWater Type
Groundwater
PFAS Detected
2
Above MCL
0
State
Missouri
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 60000.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 3.90ppt | No federal limit | — | Unregulated |
Note: ZIP code 63025 is served by 3 separate water utilities.
Results above show data for each system independently.
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.