ZIP Code 93611
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
1
Water System
1025%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 1025% of limit
Detected: 41.00 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 450% of limit
Detected: 18.00 ppt
CITY OF CLOVIS
CA1010003 High RiskWater Type
Groundwater
PFAS Detected
10
Above MCL
2
State
California
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 41.00ppt | 1025% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 18.00ppt | 450% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 8.80ppt | 88% of limit
| 10 ppt | Below limit |
PFNA Perfluorononanoic acid | 6.90ppt | 69% of limit
| 10 ppt | Below limit |
PFPeA Perfluoropentanoic acid | 8.40ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 8.00ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 7.90ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 6.10ppt | No federal limit | — | Unregulated |
Show 2 more compounds detected at low levels
| PFHpAPerfluoroheptanoic acid | 5.70 ppt | No federal limit |
| PFDAPerfluorodecanoic acid | 3.10 ppt | No federal limit |
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.