Norman
Is Norman tap water safe to drink?
Mostly yes — Norman scores 92/100. This report aggregates EPA drinking water data across 3 local systems in Norman. We found 335 total violations (15 unresolved).
Real-Time Environment
Live: 04:15 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Norman.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Norman?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Should you buy a water purifier in Norman? See our analysis.
Baby Formula Safety
Is Norman tap water safe for infants? Critical safety guide.
Homebuyer's Perspective
For those looking to relocate to Norman, water quality is a key factor in long-term property maintenance. The high safety score (92/100) 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 Norman
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Norman.
Frequently Asked Questions
Is Norman tap water safe to drink?
Mostly yes — Norman scores 92/100.
How many water systems serve Norman?
Norman is served by 3 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Norman?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Norman.
What is the water quality score for Norman?
The water quality score for Norman is 92 out of 100, based on EPA contaminant data, violation history, and testing results across the 3 systems serving the city.
What are the top contaminants in Norman?
The top contaminants detected in Norman include Lead (90th percentile). View detailed information on our contaminants page.
Norman Water Quality Summary
Norman, OK receives a water quality score of 92/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 3 public water systems serving the area.
Norman'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.
Norman's score of 92 is 54 points above the Oklahoma state average of 38, and above the nationwide average of roughly 78/100 across all U.S. states.
For residents and home seekers looking at Norman, Oklahoma, the local drinking water is served by three distinct water systems that consistently deliver excellent quality, indicating strong management despite regional environmental challenges. Located in the South-central plains, this mid-size city faces potential runoff and groundwater concerns typical of areas shaped by agricultural activities and a legacy of oil and gas production. Fortunately, local infrastructure successfully mitigates these regional risks, offering peace of mind to families and prospective buyers who prioritize reliable, highly-rated tap water.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Oklahoma water quality rankings report →
Key Contaminants
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Water Systems Serving Norman (3)
Check Your Specific Address
Water quality can vary by neighborhood in Norman.
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Compare Norman water quality: View all states · Contaminant library · How we score water quality