Is There Lead in Old Lyme, CT Water? (ZIP 06371)
Yes. Lead has been detected in the public water serving Old Lyme, CT (ZIP 06371) in 92% of samples — above the EPA limit in 5% of samples.
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 Lead?
Lead is a toxic heavy metal that leaches into drinking water from corroded pipes, solder, and plumbing fixtures, particularly in homes built before 1986. The EPA action level is 15 parts per billion, but no amount of lead in water is considered safe. Chronic exposure causes developmental delays in children and kidney damage in adults.
Who is most at risk in Old Lyme?
Lead matters most for infants, young children, pregnancy — harms developing brains — there is no safe level for children, and it crosses the placenta. The safe level for these groups is stricter than for a healthy adult.
How to remove Lead from your water
Install a point-of-use filter certified to NSF/ANSI Standard 53 for lead reduction, such as a reverse osmosis system or activated carbon block filter.
Run cold water for 30 seconds to 2 minutes before drinking or cooking, especially after water has sat in pipes for several hours, to flush lead-laden water from the service line.
Replace lead service lines and any brass fixtures or lead solder connections in your home plumbing, and test your water annually through a state-certified laboratory.
Never use hot tap water for drinking, cooking, or preparing baby formula, as hot water dissolves lead from plumbing more readily than cold water.
See what Lead means for your household
Get a free report personalized to the people in your home — infants, pregnancy, children, elderly, and pets.
Check 06371 Water NowHow Old Lyme compares
Across Connecticut, Lead is detected in 265 of the communities we track, and is above a limit or standard in 197. In Old Lyme (06371), it was found in 92% of samples, above the EPA limit in 5% of samples.
Lead in nearby Connecticut towns:
Other contaminants of concern in Old Lyme (06371)
Last updated July 2026.