ZIP Code 45638
High RiskPFAS above EPA limits detected
2 compounds exceed EPA Maximum Contaminant Levels in water serving this ZIP code. Standard pitcher filters like Brita do not remove PFAS. See filter recommendations below.
10
PFAS Detected
2
Above EPA Limits
3
Water Systems
170%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 138% of limit
Detected: 5.50 ppt
IRONTON PWS
OH4400711 High RiskWater Type
Surface Water
PFAS Detected
4
Above MCL
1
State
Ohio
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 5.50ppt | 138% of limit
| 4 ppt | ⚠ Exceeds MCL |
HFPO-DA GenX (Hexafluoropropylene oxide dimer acid) | 6.70ppt | 67% of limit
| 10 ppt | Below limit |
PFPeA Perfluoropentanoic acid | 6.50ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 3.10ppt | No federal limit | — | Unregulated |
HECLA WATER ASSOCIATION-PLANT PWS
OH4401612 High RiskWater Type
Surface Water
PFAS Detected
5
Above MCL
1
State
Ohio
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 6.80ppt | 170% of limit
| 4 ppt | ⚠ Exceeds MCL |
HFPO-DA GenX (Hexafluoropropylene oxide dimer acid) | 5.50ppt | 55% of limit
| 10 ppt | Below limit |
PFBA Perfluorobutanoic acid | 5.30ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 3.10ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 3.10ppt | No federal limit | — | Unregulated |
SCIOTO WATER, INC.-SUGAR CAMP
OH7300903 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Ohio
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFHxS Perfluorohexane sulfonic acid | 4.20ppt | 42% of limit
| 10 ppt | Below limit |
Note: ZIP code 45638 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.