CheckPFAS

CHEROKEE MD

High Risk
PWSID: CO0121125 Colorado 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
5
ZIPs Served
Groundwater
Water Source

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOA
Perfluorooctanoic acid
6.10ppt
153% of limit
4 ppt⚠ Exceeds MCL
lithium
25700.00pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
19.80pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
17.60pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
7.60pptNo 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)
CO0121125
Detection threshold (MRL)
~1.5–2 ppt — "Not detected" means below this floor