Johnson City
Is Johnson City tap water safe to drink?
Mostly yes — Johnson City scores 97/100. This report aggregates EPA drinking water data across 1 local system in Johnson City. We found 33 total violations (24 unresolved).
Real-Time Environment
Live: 11:00 AM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Johnson City.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Johnson City?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Filtration technologies matched to Johnson City contaminant records.
Baby Formula Safety
Guidance on preparing infant formula using municipal tap water in Johnson City.
Homebuyer's Perspective
Municipal water quality in Johnson City directly influences pipe corrosion rates and home filtration needs. The high safety score (97/100) 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 Johnson City
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Johnson City.
Frequently Asked Questions
Is Johnson City tap water safe to drink?
Mostly yes — Johnson City scores 97/100.
How many water systems serve Johnson City?
Johnson City is served by 1 public water system in our latest EPA-backed dataset.
How can I check water quality for my exact address in Johnson City?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Johnson City.
What is the water quality score for Johnson City?
The water quality score for Johnson City is 97 out of 100, based on EPA contaminant data, violation history, and testing results across the 1 system serving the city.
What are the top contaminants in Johnson City?
The top contaminants detected in Johnson City include Lead (90th percentile). View detailed information on our contaminants page.
Johnson City Water Quality Summary
Johnson City, TN receives a water quality score of 97/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.
Johnson City'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.
Johnson City's score of 97 is 14 points above the Tennessee state average of 83, and above the nationwide average of roughly 78/100 across all U.S. states.
For households and prospective homebuyers moving to this mid-size city in Tennessee, the tap water provides exceptional regulatory reliability. Serving the Johnson City community through a single water system, the local infrastructure delivers high-quality drinking water that performs exceptionally well within the Southeast's mix of urban centers and rural Appalachian foothills. This reliable, top-tier performance means residents can confidently use their household tap for clean water every day.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Tennessee water quality rankings report →
Key Contaminants
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Water Systems Serving Johnson City (1)
Check Your Specific Address
Water quality can vary by neighborhood in Johnson City.
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