Is There Gross Alpha in Stamford, CT Water? (ZIP 06914)
By Alexander Snyder, Founder & Water Quality Data LeadLast reviewed July 2026
Yes. Gross Alpha has been detected in the public water serving Stamford, CT (ZIP 06914) in every sample tested — a contaminant with no established safe level, so any detection matters.
In Stamford (06914), Gross Alpha was detected in 100% of 2 samples across 2 water systems, most recently in 2006.
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 Gross Alpha?
Gross alpha activity is a screening measurement for alpha-emitting radioactive particles in water, including radium-226, radon, and uranium. It indicates the total level of alpha radiation rather than a single contaminant. The EPA maximum contaminant level is 15 picocuries per liter, excluding radon and uranium. Elevated gross alpha levels are associated with increased cancer risk, particularly bone and lung cancer.
Who is most at risk in Stamford?
Gross Alpha matters most for infants, pregnancy — a radioactive contaminant with no safe level — developing tissues in infants and during pregnancy are more sensitive to radiation. The safe level for these groups is stricter than for a healthy adult.
How to remove Gross Alpha from your water
Install a point-of-use reverse osmosis system certified to NSF/ANSI Standard 58 for radium and uranium reduction, as these are the most common contributors to elevated gross alpha readings.
Use a cation exchange water softener to reduce radium, which is often the primary source of gross alpha activity in groundwater from sedimentary aquifers.
If uranium is the primary contributor, an anion exchange resin system is more targeted, since dissolved uranium typically carries a negative charge in groundwater.
Request a full radiological analysis from a certified laboratory to identify which specific radionuclides are contributing to the gross alpha reading.
See what Gross Alpha 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, Gross Alpha is detected in 128 of the communities we track. In Stamford (06914), it was found in every sample tested.
Gross Alpha in nearby Connecticut towns:
Other contaminants of concern in Stamford (06914)
Frequently Asked Questions
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About this report
Gross Alpha 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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