CheckPFAS

JOHNSON UTIL - ANTHEM AT MERRILL RANCH

High Risk
PWSID: AZ0411136 Arizona 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.

7
PFAS Detected
1
Above EPA Limits
1
ZIP Served
Groundwater
Water Source

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOA
Perfluorooctanoic acid
19.00ppt
475% of limit
4 ppt⚠ Exceeds MCL
lithium
110000.00pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
40.00pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
24.00pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
22.00pptNo federal limitUnregulated
PFBA
Perfluorobutanoic acid
6.70pptNo federal limitUnregulated
PFHpA
Perfluoroheptanoic acid
4.60pptNo 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)
AZ0411136
Detection threshold (MRL)
~1.5–2 ppt — "Not detected" means below this floor