Is There PFOS in Stamford, CT Water? (ZIP 06914)
By Alexander Snyder, Founder & Water Quality Data LeadLast reviewed July 2026
Yes. PFOS has been detected in the public water serving Stamford, CT (ZIP 06914) in 10% of samples — above the EPA limit in 8% of samples.
In Stamford (06914), PFOS was detected in 10% of 77 samples across 4 water systems, most recently in 2025.
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 PFOS?
PFOS (perfluorooctane sulfonic acid) is a synthetic fluorinated compound used historically in firefighting foams, stain repellents, and industrial coatings. It persists indefinitely in the environment, earning PFAS chemicals the name "forever chemicals." The EPA maximum contaminant level is 4 parts per trillion. PFOS accumulates in the body and is linked to cancer, thyroid disease, and immune suppression.
Who is most at risk in Stamford?
PFOS 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 PFOS from your water
Install a reverse osmosis system certified to NSF/ANSI Standard 58, which removes over 90% of PFOS from drinking water at the point of use.
Use a granular activated carbon (GAC) filter or carbon block filter rated for PFAS removal; look for NSF/ANSI Standard 53 certification specifically listing PFOS.
Consider a whole-house ion exchange resin system designed for PFAS if contamination levels are elevated, as these resins have high adsorption capacity for sulfonated compounds.
Test your water through a laboratory offering EPA Method 533 or 537.1 analysis to confirm PFOS levels before and after treatment to verify filter performance.
See what PFOS means for your household
Get a free report personalized to the people in your home — infants, pregnancy, children, elderly, and pets.
Check 06914 Water NowHow Stamford compares
Across Connecticut, PFOS is detected in 73 of the communities we track, and is above a limit or standard in 73. In Stamford (06914), it was found in 10% of samples, above the EPA limit in 8% of samples.
PFOS in nearby Connecticut towns:
Other contaminants of concern in Stamford (06914)
Frequently Asked Questions
Is there PFOS in Stamford 06914 tap water?▾
What level of PFOS is safe?▾
Do I need a water filter for PFOS in Stamford?▾
Is PFOS in Stamford water dangerous for babies?▾
About this report
PFOS detection data for Stamford, CT (06914) is compiled from public records filed with the U.S. Environmental Protection Agency (EPA SDWIS), the U.S. Geological Survey (USGS NWIS), the Environmental Working Group (EWG) Tap Water Database, and the Connecticut Department of Public Health (CT DPH). Reviewed by CheckYourTap, a service of Valiant Energy Solutions, a Connecticut company established in 1930.
By Alexander Snyder, Founder & Water Quality Data Lead.
This report is general information, not medical advice or a substitute for certified laboratory testing. Talk to your pediatrician or physician about specific health concerns.
Last updated July 2026.
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