Hyannis
Is Hyannis tap water safe to drink?
Mostly yes — Hyannis scores 84/100. This report aggregates EPA drinking water data across 1 local system in Hyannis. We found 87 total violations (12 unresolved).
Real-Time Environment
Live: 02:30 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Hyannis.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Hyannis?
Expert Advice
Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.
Buying a Filter?
Filtration technologies matched to Hyannis contaminant records.
Baby Formula Safety
Guidance on preparing infant formula using municipal tap water in Hyannis.
Homebuyer's Perspective
Municipal water quality in Hyannis directly influences pipe corrosion rates and home filtration needs. The high safety score (84/100) suggests lower risk for plumbing corrosion and appliance scaling.
Health & Family Safety
Residents should monitor Lead (90th percentile) levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.
View Health Risk Glossary →Compliance Record for Hyannis
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Hyannis.
Frequently Asked Questions
Is Hyannis tap water safe to drink?
Mostly yes — Hyannis scores 84/100.
How many water systems serve Hyannis?
Hyannis is served by 1 public water system in our latest EPA-backed dataset.
How can I check water quality for my exact address in Hyannis?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Hyannis.
What is the water quality score for Hyannis?
The water quality score for Hyannis is 84 out of 100, based on EPA contaminant data, violation history, and testing results across the 1 system serving the city.
What are the top contaminants in Hyannis?
The top contaminants detected in Hyannis include Lead (90th percentile). View detailed information on our contaminants page.
Hyannis Water Quality Summary
Hyannis, MA 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.
Hyannis'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.
Hyannis's score of 84 is 10 points above the Massachusetts state average of 74, and above the nationwide average of roughly 78/100 across all U.S. states.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Massachusetts water quality rankings report →
Key Contaminants
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Water Systems Serving Hyannis (1)
Check Your Specific Address
Water quality can vary by neighborhood in Hyannis.
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