CheckPFAS

CITY OF OXFORD

High Risk
PWSID: MS0360011 Mississippi Groundwater

3 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.

9
PFAS Detected
3
Above EPA Limits
1
ZIP Served
Groundwater
Water Source

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
72.20ppt
1805% of limit
4 ppt⚠ Exceeds MCL
PFHxS
Perfluorohexane sulfonic acid
13.60ppt
136% of limit
10 ppt⚠ Exceeds MCL
PFOA
Perfluorooctanoic acid
4.40ppt
110% of limit
4 ppt⚠ Exceeds MCL
PFPeA
Perfluoropentanoic acid
24.50pptNo federal limitUnregulated
6:2 FTS
6:2 Fluorotelomer sulfonic acid
22.90pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
15.00pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
10.90pptNo federal limitUnregulated
PFBA
Perfluorobutanoic acid
5.60pptNo federal limitUnregulated
Show 1 more compound detected at low levels
PFHpAPerfluoroheptanoic acid3.40 pptNo federal limit

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)
MS0360011
Detection threshold (MRL)
~1.5–2 ppt — "Not detected" means below this floor