Columbia
Is Columbia tap water safe to drink?
Mostly yes — Columbia scores 88/100. This report aggregates EPA drinking water data across 5 local systems in Columbia. We found 622 total violations (41 unresolved).
Real-Time Environment
Live: 11:00 AM☀️ 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?
Evaluation of municipal compliance and household filtration options in Columbia.
Baby Formula Safety
EPA compliance thresholds and pediatric water precautions for Columbia.
Homebuyer's Perspective
Water system history in Columbia informs property maintenance and private filtration requirements. The high safety score (88/100) 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 88/100.
How many water systems serve Columbia?
Columbia is served by 5 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 88 out of 100, based on EPA contaminant data, violation history, and testing results across the 5 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, SC receives a water quality score of 88/100 (Grade B) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 5 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 88 is 1 point below the South Carolina state average of 89, and above the nationwide average of roughly 78/100 across all U.S. states.
In the Southeast coastal plain, Columbia's water systems evaluate the distinct environmental demands of serving a large city surrounded by agricultural land and growing urban centers. The resulting municipal water quality falls into a moderate tier, indicating that while the supply meets baseline requirements, there are areas where the systems have room to improve. For residents and prospective homebuyers in South Carolina, this middle-ground status suggests that staying informed about regular water quality updates is a practical step.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our South Carolina water quality rankings report →
Key Contaminants
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Water Systems Serving Columbia (5)
Columbia City Of (Sc4010001)
CBgwc Glenn Village Ii (Sc3250058)
ABgwc I-20 (Sc3250012)
BBgwc Oakland Plantation (Sc4350006)
ALieber Correctional Institute (1870050)
ACheck Your Specific Address
Water quality can vary by neighborhood in Columbia.
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Quick compare in South Carolina
Compare Columbia water quality: View all states · Contaminant library · How we score water quality