Winthrop
Is Winthrop tap water safe to drink?
Mostly yes — Winthrop scores 82/100. This report aggregates EPA drinking water data across 1 local system in Winthrop. We found 26 total violations (12 unresolved).
Real-Time Environment
Live: 05:30 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Winthrop.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Winthrop?
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 Winthrop contaminant records.
Baby Formula Safety
Guidance on preparing infant formula using municipal tap water in Winthrop.
Homebuyer's Perspective
Municipal water quality in Winthrop directly influences pipe corrosion rates and home filtration needs. The high safety score (82/100) 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 Winthrop
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Winthrop.
Frequently Asked Questions
Is Winthrop tap water safe to drink?
Mostly yes — Winthrop scores 82/100.
How many water systems serve Winthrop?
Winthrop is served by 1 public water system in our latest EPA-backed dataset.
How can I check water quality for my exact address in Winthrop?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Winthrop.
What is the water quality score for Winthrop?
The water quality score for Winthrop is 82 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 Winthrop?
The top contaminants detected in Winthrop include Lead (90th percentile). View detailed information on our contaminants page.
Winthrop Water Quality Summary
Winthrop, MA receives a water quality score of 82/100 (Grade B) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.
Winthrop'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.
Winthrop's score of 82 is 8 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 Winthrop (1)
Check Your Specific Address
Water quality can vary by neighborhood in Winthrop.
Related
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