Columbia
Is Columbia tap water safe to drink?
Mostly yes — Columbia scores 91/100. This report aggregates EPA drinking water data across 4 local systems in Columbia. We found 142 total violations (22 unresolved).
Real-Time Environment
Live: 05:00 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Columbia.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Columbia?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Wondering if Columbia tap water needs filtering? We break it down.
Baby Formula Safety
Mixing baby formula with Columbia tap water? Read this first.
Homebuyer's Perspective
If you're house-hunting in Columbia, water quality belongs on your due-diligence checklist alongside schools and crime data. The high safety score (91/100) 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 Columbia
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Columbia.
Frequently Asked Questions
Is Columbia tap water safe to drink?
Mostly yes — Columbia scores 91/100.
How many water systems serve Columbia?
Columbia is served by 4 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Columbia?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Columbia.
What is the water quality score for Columbia?
The water quality score for Columbia is 91 out of 100, based on EPA contaminant data, violation history, and testing results across the 4 systems serving the city.
What are the top contaminants in Columbia?
The top contaminants detected in Columbia include Lead (90th percentile). View detailed information on our contaminants page.
Columbia Water Quality Summary
Columbia, MO receives a water quality score of 91/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 4 public water systems serving the area.
Columbia'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.
Columbia's score of 91 is 13 points above the Missouri state average of 78, and above the nationwide average of roughly 78/100 across all U.S. states.
Nestled within the agricultural plains of the Midwest near the Mississippi and Missouri river confluence, Columbia benefits from exceptional municipal water standards across its several local systems. For prospective homebuyers looking at this mid-size city, the strong regional water performance offers peace of mind regarding daily consumption and household use. This high level of compliance indicates that local water infrastructure successfully navigates the environmental demands of its river-basin geography to deliver clean tap water to residents.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Missouri water quality rankings report →
Key Contaminants
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Water Systems Serving Columbia (4)
Boone County Pwsd 9
BCity Of Columbia Utilities
ABoone County Cons Pwsd 1
AUniversity Of Missouri Columbia
ACheck Your Specific Address
Water quality can vary by neighborhood in Columbia.
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