Westerville
Is Westerville tap water safe to drink?
Mostly yes — Westerville scores 96/100. This report aggregates EPA drinking water data across 7 local systems in Westerville. We found 105 total violations (11 unresolved).
Real-Time Environment
Live: 08:00 AM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Westerville.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Westerville?
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 Westerville? See our analysis.
Baby Formula Safety
Is Westerville tap water safe for infants? Critical safety guide.
Homebuyer's Perspective
For those looking to relocate to Westerville, water quality is a key factor in long-term property maintenance. The high safety score (96/100) 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 Westerville
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Westerville.
Frequently Asked Questions
Is Westerville tap water safe to drink?
Mostly yes — Westerville scores 96/100.
How many water systems serve Westerville?
Westerville is served by 7 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Westerville?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Westerville.
What is the water quality score for Westerville?
The water quality score for Westerville is 96 out of 100, based on EPA contaminant data, violation history, and testing results across the 7 systems serving the city.
What are the top contaminants in Westerville?
The top contaminants detected in Westerville include Lead (90th percentile). View detailed information on our contaminants page.
Westerville Water Quality Summary
Westerville, OH receives a water quality score of 96/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 7 public water systems serving the area.
Westerville'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.
Westerville's score of 96 is 12 points above the Ohio state average of 84, 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 Ohio water quality rankings report →
Key Contaminants
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Water Systems Serving Westerville (7)
Aqua Ohio - Preble County
AAqua Ohio - Blacklick
AAqua Ohio - Huber Ridge Pws
AAqua Ohio - Lawrence County
BAqua Ohio - Worthington Hills Pws
AAqua Ohio - Lake Darby
AAqua Ohio - Lake White Pws
ACheck Your Specific Address
Water quality can vary by neighborhood in Westerville.
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Compare Westerville water quality: View all states · Contaminant library · How we score water quality