ZIP Code 95307
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.
8
PFAS Detected
2
Above EPA Limits
1
Water System
600%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 600% of limit
Detected: 24.00 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 300% of limit
Detected: 12.00 ppt
CERES, CITY OF
CA5010028 High RiskWater Type
Groundwater
PFAS Detected
8
Above MCL
2
State
California
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 24.00ppt | 600% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 12.00ppt | 300% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 5.70ppt | 57% of limit
| 10 ppt | Below limit |
lithium | 15700.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 8.40ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 7.40ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 6.60ppt | No federal limit | — | Unregulated |
PFHpA Perfluoroheptanoic acid | 4.70ppt | No federal limit | — | Unregulated |
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.