Twin Falls
Is Twin Falls tap water safe to drink?
Mostly yes — Twin Falls scores 80/100. This report aggregates EPA drinking water data across 1 local system in Twin Falls. We found 166 total violations (17 unresolved).
Real-Time Environment
Live: 04:15 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Twin Falls.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Twin Falls?
Expert Advice
Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.
Buying a Filter?
Filter or no filter for Twin Falls water? Here's what the data says.
Baby Formula Safety
What new parents in Twin Falls should know about tap water safety.
Homebuyer's Perspective
Water quality is easy to overlook when evaluating a move to Twin Falls, but it can affect plumbing longevity and appliance lifespan. The high safety score (80/100) 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 Twin Falls
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Twin Falls.
Frequently Asked Questions
Is Twin Falls tap water safe to drink?
Mostly yes — Twin Falls scores 80/100.
How many water systems serve Twin Falls?
Twin Falls is served by 1 public water system in our latest EPA-backed dataset.
How can I check water quality for my exact address in Twin Falls?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Twin Falls.
What is the water quality score for Twin Falls?
The water quality score for Twin Falls is 80 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 Twin Falls?
The top contaminants detected in Twin Falls include Lead (90th percentile). View detailed information on our contaminants page.
Twin Falls Water Quality Summary
Twin Falls, ID receives a water quality score of 80/100 (Grade B) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.
Twin Falls'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.
Twin Falls's score of 80 matches the Idaho state average, and above 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 Idaho water quality rankings report →
Key Contaminants
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Water Systems Serving Twin Falls (1)
Check Your Specific Address
Water quality can vary by neighborhood in Twin Falls.
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Compare Twin Falls water quality: View all states · Contaminant library · How we score water quality