Charleston
Is Charleston tap water safe to drink?
Mostly yes — Charleston scores 98/100. This report aggregates EPA drinking water data across 2 local systems in Charleston. We found 0 total violations (0 unresolved).
Real-Time Environment
Live: 03:30 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Charleston.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Charleston?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Filter or no filter for Charleston water? Here's what the data says.
Baby Formula Safety
What new parents in Charleston should know about tap water safety.
Homebuyer's Perspective
Water quality is easy to overlook when evaluating a move to Charleston, but it can affect plumbing longevity and appliance lifespan. The high safety score (98/100) suggests lower risk for plumbing corrosion and appliance scaling.
Health & Family Safety
Residents should monitor Turbidity levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.
View Health Risk Glossary →Compliance Record for Charleston
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Charleston.
Frequently Asked Questions
Is Charleston tap water safe to drink?
Mostly yes — Charleston scores 98/100.
How many water systems serve Charleston?
Charleston is served by 2 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Charleston?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Charleston.
What is the water quality score for Charleston?
The water quality score for Charleston is 98 out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.
What are the top contaminants in Charleston?
The top contaminants detected in Charleston include Turbidity, Uranium, Gross Alpha Particle Activity. View detailed information on our contaminants page.
Charleston Water Quality Summary
Charleston, SC receives a water quality score of 98/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.
Charleston'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.
Charleston's score of 98 is 9 points above the South Carolina state average of 89, and above the nationwide average of roughly 78/100 across all U.S. states.
For prospective homebuyers and current residents of this large South Carolina city, the municipal drinking water stands out for its exemplary safety and quality. A single centralized water system manages the supply for the entire community, successfully mitigating the regional runoff challenges of the Southeast coastal plain, which features agricultural lands alongside growing urban centers. This robust infrastructure ensures that households throughout Charleston receive tap water that consistently conforms to exceptionally rigorous standards.
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 Charleston (2)
Check Your Specific Address
Water quality can vary by neighborhood in Charleston.
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Compare Charleston water quality: View all states · Contaminant library · How we score water quality