CheckPFAS

ZIP Code 90280

High Risk
High Risk PFAS Risk Level

PFAS above EPA limits detected

5 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.

17
PFAS Detected
5
Above EPA Limits
4
Water Systems
650%
Highest % of MCL

Compounds Exceeding EPA Limits

PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 375% of limit
Detected: 15.00 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 195% of limit
Detected: 7.80 ppt

GSWC - BELL, BELL GARDENS

CA1910011 High Risk
Water Type
Groundwater
PFAS Detected
6
Above MCL
1
State
California
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
15.00ppt
375% of limit
4 ppt⚠ Exceeds MCL
PFHxS
Perfluorohexane sulfonic acid
3.60ppt
36% of limit
10 pptBelow limit
PFBA
Perfluorobutanoic acid
11.00pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
7.30pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
6.60pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
4.10pptNo federal limitUnregulated

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

SOUTH GATE-CITY, WATER DEPT.

CA1910152 High Risk
Water Type
Groundwater
PFAS Detected
6
Above MCL
2
State
California
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
26.00ppt
650% of limit
4 ppt⚠ Exceeds MCL
PFOA
Perfluorooctanoic acid
10.00ppt
250% of limit
4 ppt⚠ Exceeds MCL
PFHxS
Perfluorohexane sulfonic acid
6.00ppt
60% of limit
10 pptBelow limit
PFPeA
Perfluoropentanoic acid
6.30pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
6.10pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
3.90pptNo federal limitUnregulated

GSWC - HOLLYDALE

CA1910195 Low Level
Water Type
Groundwater
PFAS Detected
1
Above MCL
0
State
California
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFBA
Perfluorobutanoic acid
5.50pptNo federal limitUnregulated
Note: ZIP code 90280 is served by 4 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 →