CheckPFAS

LIBERTY UTILITIES - LYNWOOD

High Risk
PWSID: CA1910161 California Groundwater

2 PFAS compound(s) exceed EPA Maximum Contaminant Levels

This utility has until 2029 to install treatment under the EPA's April 2024 PFAS rule. In the meantime, a point-of-use filter certified NSF/ANSI 58 for PFOA/PFOS provides reliable interim protection.

4
PFAS Detected
2
Above EPA Limits
2
ZIPs Served
Groundwater
Water Source

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
lithium
88600.00pptNo federal limitUnregulated

ZIP Codes Served by This Utility

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About this data
Source
EPA UCMR 5 — January 2026 release
Sampling period
January 2023 – December 2025
Water system ID (PWSID)
CA1910161
Detection threshold (MRL)
~1.5–2 ppt — "Not detected" means below this floor