CheckPFAS

KALAMAZOO

High Risk
PWSID: MI0003520 Michigan Groundwater

1 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.

5
PFAS Detected
1
Above EPA Limits
14
ZIPs Served
Groundwater
Water Source

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
6.70ppt
168% of limit
4 ppt⚠ Exceeds MCL
PFOA
Perfluorooctanoic acid
4.00ppt
100% of limit
4 pptBelow limit
PFHxS
Perfluorohexane sulfonic acid
4.20ppt
42% of limit
10 pptBelow limit
PFBS
Perfluorobutane sulfonic acid
7.60pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
6.10pptNo 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)
MI0003520
Detection threshold (MRL)
~1.5–2 ppt — "Not detected" means below this floor