Olathe
Is Olathe tap water safe to drink?
Mostly yes — Olathe scores 87/100. This report aggregates EPA drinking water data across 1 local system in Olathe. We found 59 total violations (5 unresolved).
Real-Time Environment
Live: 04:15 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Olathe.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Olathe?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Wondering if Olathe tap water needs filtering? We break it down.
Baby Formula Safety
Mixing baby formula with Olathe tap water? Read this first.
Homebuyer's Perspective
If you're house-hunting in Olathe, water quality belongs on your due-diligence checklist alongside schools and crime data. The high safety score (87/100) 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 Olathe
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Olathe.
Frequently Asked Questions
Is Olathe tap water safe to drink?
Mostly yes — Olathe scores 87/100.
How many water systems serve Olathe?
Olathe is served by 1 public water system in our latest EPA-backed dataset.
How can I check water quality for my exact address in Olathe?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Olathe.
What is the water quality score for Olathe?
The water quality score for Olathe is 87 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 Olathe?
The top contaminants detected in Olathe include Lead (90th percentile). View detailed information on our contaminants page.
Olathe Water Quality Summary
Olathe, KS receives a water quality score of 87/100 (Grade B) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.
Olathe'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.
Olathe's score of 87 is 9 points above the Kansas state average of 78, and above the nationwide average of roughly 78/100 across all U.S. states.
Homebuyers relocating to Olathe will find that this mid-size Kansas city secures its supply through a centralized water system dependent on groundwater from the agricultural Ogallala aquifer region of the Great Plains. The local tap water achieves a solid, above-average standard of quality, offering reassurance to residents who value clean municipal utility performance. While the region's agricultural setting demands consistent monitoring, the city's current rating reflects dependable filtration and treatment practices.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Kansas water quality rankings report →
Key Contaminants
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Water Systems Serving Olathe (1)
Check Your Specific Address
Water quality can vary by neighborhood in Olathe.
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