Johnstown
Is Johnstown tap water safe to drink?
Generally acceptable, but review local hotspots — score 73/100. This report aggregates EPA drinking water data across 0 local systems in Johnstown. We found 0 total violations (0 unresolved).
Real-Time Environment
Live: 08:45 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Johnstown.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Johnstown?
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 Johnstown tap water needs filtering? We break it down.
Baby Formula Safety
Mixing baby formula with Johnstown tap water? Read this first.
Homebuyer's Perspective
If you're house-hunting in Johnstown, water quality belongs on your due-diligence checklist alongside schools and crime data. With a score of 73/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.
Health & Family Safety
Current records show no major contaminant spikes, making Johnstown a preferred choice for health-conscious families.
View Health Risk Glossary →Compliance Record for Johnstown
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Johnstown.
Frequently Asked Questions
Is Johnstown tap water safe to drink?
Generally acceptable, but review local hotspots — score 73/100.
How many water systems serve Johnstown?
Johnstown is served by 0 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Johnstown?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Johnstown.
What is the water quality score for Johnstown?
The water quality score for Johnstown is 73 out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.
What are the top contaminants in Johnstown?
Current contaminant data for Johnstown is being updated. Check back soon or search your specific address for the latest results.
Johnstown Water Quality Summary
Johnstown, CO receives a water quality score of 73/100 (Grade C) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.
Johnstown'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.
Johnstown's score of 73 is 9 points below the Colorado state average of 82, and below the nationwide average of roughly 78/100 across all U.S. states.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Colorado water quality rankings report →
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Water Systems Serving Johnstown (0)
Water system data coming soon for Johnstown.
Check Your Specific Address
Water quality can vary by neighborhood in Johnstown.
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