Is There PFPeA in Greenwich, CT Water? (ZIP 06807)
Yes. PFPeA has been detected in the public water serving Greenwich, CT (ZIP 06807) in 29% of samples — a contaminant with no established safe level, so any detection matters.
Federal legal limits and stricter health guidelines are not the same — enter your household below for a report on what this means for the specific people in your home.
What is PFPeA?
PFPeA (perfluoropentanoic acid) is a five-carbon short-chain PFAS compound detected in water supplies near industrial sites and areas impacted by PFAS contamination. It enters water through industrial discharge, landfill leachate, and degradation of longer-chain PFAS. No EPA maximum contaminant level has been set. It is persistent in the environment and associated with potential liver and thyroid effects based on available toxicological data.
Who is most at risk in Greenwich?
PFPeA matters most for infants, pregnancy — 'forever chemicals' linked to developmental and immune effects; can transfer through the placenta and breast milk. The safe level for these groups is stricter than for a healthy adult.
How to remove PFPeA from your water
Install a reverse osmosis system certified to NSF/ANSI Standard 58, which effectively removes short-chain PFAS compounds like PFPeA from drinking water.
Use a high-quality activated carbon filter certified to NSF/ANSI Standard 53; short-chain PFAS are less efficiently captured by carbon, so replace media more frequently.
Consider an ion exchange resin system designed for PFAS removal as a supplement to reverse osmosis or carbon filtration for whole-house treatment.
Test water using EPA Method 533 to confirm PFPeA levels and verify treatment system performance at regular intervals.
See what PFPeA means for your household
Get a free report personalized to the people in your home — infants, pregnancy, children, elderly, and pets.
Check 06807 Water NowHow Greenwich compares
Across Connecticut, PFPeA is detected in 7 of the communities we track. In Greenwich (06807), it was found in 29% of samples.
PFPeA in nearby Connecticut towns:
Other contaminants of concern in Greenwich (06807)
Last updated July 2026.