CheckPFAS

ZIP Code 91702

High Risk
High Risk PFAS Risk Level

PFAS 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.

3
PFAS Detected
2
Above EPA Limits
1
Water System
193%
Highest % of MCL

Compounds Exceeding EPA Limits

PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 193% of limit
Detected: 7.70 ppt
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 145% of limit
Detected: 5.80 ppt
Find the right filter for your water
See our tested & reviewed PFAS-certified filters →

AZUSA LIGHT AND WATER

CA1910007 High Risk
Water Type
Groundwater
PFAS Detected
3
Above MCL
2
State
California
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOA
Perfluorooctanoic acid
7.70ppt
193% of limit
4 ppt⚠ Exceeds MCL
PFOS
Perfluorooctane sulfonic acid
5.80ppt
145% of limit
4 ppt⚠ Exceeds MCL
PFHxA
Perfluorohexanoic acid
3.50pptNo 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.

View raw EPA data →