WaterQ
Connecticut State Report All States
Official Status: March 2026

Is Old Lyme tap water safe to drink?

✓ Generally Safe
B

Mostly yes — Old Lyme scores 84/100.

Safety Score
84
out of 100

Still not sure if you need a filter in Old Lyme?

Read Decision Guide →

Old Lyme

Connecticut

View Connecticut state report Verified: Apr 2026

Is Old Lyme tap water safe to drink?

Mostly yes — Old Lyme scores 84/100. This report aggregates EPA drinking water data across 0 local systems in Old Lyme. We found 0 total violations (0 unresolved).

🛡️ Home Water Treatment Needs

Should you invest in filtration or softening for your home in Old Lyme?

Requirement Status
Recommended
🟡
💡

Expert Advice

Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.

Buying a Filter?

Should you buy a water purifier in Old Lyme? See our analysis.

Baby Formula Safety

Is Old Lyme tap water safe for infants? Critical safety guide.

Homebuyer's Perspective

For those looking to relocate to Old Lyme, water quality is a key factor in long-term property maintenance. The high safety score (84/100) suggests lower risk for plumbing corrosion and appliance scaling.

Property Impact: Positive / Stable

Health & Family Safety

Current records show no major contaminant spikes, making Old Lyme a preferred choice for health-conscious families.

View Health Risk Glossary →

Score Breakdown for Old Lyme

EPA Compliance & Violations 85/100
Contaminant Safety Margin 84%

*Scores are calculated using weighted EPA monitoring data from the past 5 years.

Frequently Asked Questions

Is Old Lyme tap water safe to drink?

Mostly yes — Old Lyme scores 84/100.

How many water systems serve Old Lyme?

Old Lyme is served by 0 public water systems in our latest EPA-backed dataset.

How can I check water quality for my exact address in Old Lyme?

Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Old Lyme.

What is the water quality score for Old Lyme?

The water quality score for Old Lyme is N/A out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.

What are the top contaminants in Old Lyme?

Current contaminant data for Old Lyme is being updated. Check back soon or search your specific address for the latest results.

Water Quality Score
84/100
Grade
B
Water Systems
1
Population
1,102

Old Lyme Water Quality Summary

Old Lyme, CT receives a water quality score of 84/100 (Grade B) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.

Old Lyme's water quality is above the national average, with strong compliance records and low contaminant levels. Residents generally receive clean, safe tap water that meets EPA standards.

Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology →

Water Systems Serving Old Lyme (0)

Water system data coming soon for Old Lyme.

Related

Compare Old Lyme water quality: View all states · Contaminant library · How we score water quality