CheckPFAS

AQUARION WATER CO OF CT-TLWC WOODRICH

High Risk
PWSID: CT1666011 Connecticut 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.

6
PFAS Detected
2
Above EPA Limits
1
ZIP Served
Groundwater
Water Source

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOA
Perfluorooctanoic acid
6.30ppt
158% of limit
4 ppt⚠ Exceeds MCL
PFOS
Perfluorooctane sulfonic acid
6.20ppt
155% of limit
4 ppt⚠ Exceeds MCL
lithium
22200.00pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
4.50pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
4.10pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
3.10pptNo 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)
CT1666011
Detection threshold (MRL)
~1.5–2 ppt — "Not detected" means below this floor