Columbus
Is Columbus tap water safe to drink?
Generally acceptable, but review local hotspots — score 79/100. This report aggregates EPA drinking water data across 6 local systems in Columbus. We found 664 total violations (52 unresolved).
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Columbus?
Expert Advice
Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.
Buying a Filter?
Wondering if Columbus tap water needs filtering? We break it down.
Baby Formula Safety
Mixing baby formula with Columbus tap water? Read this first.
Homebuyer's Perspective
If you're house-hunting in Columbus, water quality belongs on your due-diligence checklist alongside schools and crime data. With a score of 79/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.
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 Columbus
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Columbus.
Frequently Asked Questions
Is Columbus tap water safe to drink?
Generally acceptable, but review local hotspots — score 79/100.
How many water systems serve Columbus?
Columbus is served by 6 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Columbus?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Columbus.
What is the water quality score for Columbus?
The water quality score for Columbus is 79 out of 100, based on EPA contaminant data, violation history, and testing results across the 6 systems serving the city.
What are the top contaminants in Columbus?
The top contaminants detected in Columbus include Lead (90th percentile). View detailed information on our contaminants page.
Columbus Water Quality Summary
Columbus, OH receives a water quality score of 79/100 (Grade B) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 6 public water systems serving the area.
Columbus's water quality is near the national average. While most systems meet EPA standards, some violations have been recorded. Residents may wish to review their specific water system's report for contaminant details.
Columbus's score of 79 is 5 points below the Ohio state average of 84, and above the nationwide average of roughly 78/100 across all U.S. states.
As a large Ohio city situated within the industrial Rust Belt of the Midwest and near the Great Lakes coastline, Columbus relies on a decentralized network of several municipal water systems. While the city maintains a solid, above-average quality rating, the presence of multiple independent distribution systems means that water quality can vary depending on which system serves a particular home. For prospective homebuyers, this regional profile indicates a generally dependable water supply, though it remains beneficial to verify the specific system servicing any prospective property.
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 Columbus (6)
Mid-Ohio Wsd - Chrisman Avenue Wtp
CMid-Ohio Wsd - Jackson Street Wtp
BMid-Ohio Wsd - Old Springfield Road Wtp
ATimberlake Water System
CSanitary District #4
DColumbus Public Water System
ACheck Your Specific Address
Water quality can vary by neighborhood in Columbus.
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Compare Columbus water quality: View all states · Contaminant library · How we score water quality