Derry
Is Derry tap water safe to drink?
Mostly yes — Derry scores 100/100. This report aggregates EPA drinking water data across 0 local systems in Derry. We found 0 total violations (0 unresolved).
Real-Time Environment
Live: 07:45 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Derry.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Derry?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Should you buy a water purifier in Derry? See our analysis.
Baby Formula Safety
Is Derry tap water safe for infants? Critical safety guide.
Homebuyer's Perspective
For those looking to relocate to Derry, water quality is a key factor in long-term property maintenance. The high safety score (100/100) suggests lower risk for plumbing corrosion and appliance scaling.
Health & Family Safety
Current records show no major contaminant spikes, making Derry a preferred choice for health-conscious families.
View Health Risk Glossary →Score Breakdown for Derry
*Scores are calculated using weighted EPA monitoring data from the past 5 years.
Frequently Asked Questions
Is Derry tap water safe to drink?
Mostly yes — Derry scores 100/100.
How many water systems serve Derry?
Derry is served by 0 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Derry?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Derry.
What is the water quality score for Derry?
The water quality score for Derry 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 Derry?
Current contaminant data for Derry is being updated. Check back soon or search your specific address for the latest results.
Derry Water Quality Summary
Derry, NH receives a water quality score of 100/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.
Derry'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 Derry (0)
Water system data coming soon for Derry.
Check Your Specific Address
Water quality can vary by neighborhood in Derry.
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Quick compare in New Hampshire
Compare Derry water quality: View all states · Contaminant library · How we score water quality