CheckPFAS

ZIP Code 90262

High Risk
High Risk PFAS Risk Level

PFAS above EPA limits detected

4 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.

7
PFAS Detected
4
Above EPA Limits
2
Water Systems
575%
Highest % of MCL

Compounds Exceeding EPA Limits

PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 575% of limit
Detected: 23.00 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 195% of limit
Detected: 7.80 ppt

LYNWOOD-CITY, WATER DEPT.

CA1910079 High Risk
Water Type
Groundwater
PFAS Detected
4
Above MCL
2
State
California
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
23.00ppt
575% of limit
4 ppt⚠ Exceeds MCL
PFOA
Perfluorooctanoic acid
7.80ppt
195% of limit
4 ppt⚠ Exceeds MCL
PFHxS
Perfluorohexane sulfonic acid
6.10ppt
61% of limit
10 pptBelow limit
PFPeA
Perfluoropentanoic acid
3.30pptNo federal limitUnregulated

LIBERTY UTILITIES - LYNWOOD

CA1910161 High Risk
Water Type
Groundwater
PFAS Detected
3
Above MCL
2
State
California
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
17.00ppt
425% of limit
4 ppt⚠ Exceeds MCL
PFOA
Perfluorooctanoic acid
5.00ppt
125% of limit
4 ppt⚠ Exceeds MCL
PFHxS
Perfluorohexane sulfonic acid
4.80ppt
48% of limit
10 pptBelow limit
Note: ZIP code 90262 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.

View raw EPA data →