ZIP Code 92860
High RiskPFAS above EPA limits detected
3 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.
9
PFAS Detected
3
Above EPA Limits
2
Water Systems
785%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 785% of limit
Detected: 31.40 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 343% of limit
Detected: 13.70 ppt
PFHxS Exceeds EPA limit
0 ppt MCL: 10 ppt 138% of limit
Detected: 13.80 ppt
NORCO, CITY OF
CA3310025 High RiskWater Type
Groundwater
PFAS Detected
8
Above MCL
3
State
California
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 31.40ppt | 785% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 13.70ppt | 343% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 13.80ppt | 138% of limit
| 10 ppt | ⚠ Exceeds MCL |
lithium | 35900.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 17.90ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 12.20ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 11.90ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 7.30ppt | No federal limit | — | Unregulated |
CALIFORNIA REHABILITATION CENTER - NORCO
CA3310800 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
California
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFHxS Perfluorohexane sulfonic acid | 3.50ppt | 35% of limit
| 10 ppt | Below limit |
Note: ZIP code 92860 is served by 2 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.