WaterQ
Oklahoma State Report All States
Official Status: March 2026

Is Ada tap water safe to drink?

✓ Generally Safe
B

Mostly yes — Ada scores 86/100.

Safety Score
86
out of 100

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Ada

Oklahoma

View Oklahoma state report Data updated: Mar 2026

Is Ada tap water safe to drink?

Mostly yes — Ada scores 86/100. This report aggregates EPA drinking water data across 3 local systems in Ada. We found 113 total violations (41 unresolved).

Real-Time Environment

Live: 11:00 AM
0mm Precipitation

☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Ada.

Water Quality Impact

✅ Minimal Impact Localized weather conditions may influence test result variability.

🛡️ Home Water Treatment Needs

Should you invest in filtration or softening for your home in Ada?

Requirement Status
Optional
🟢
💡

Expert Advice

Your water quality is excellent. Standard filtration is optional but can further enhance taste.

Buying a Filter?

Filter requirements and certified reduction benchmarks for Ada tap water.

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Baby Formula Safety

Infant formula preparation risks, nitrate levels, and lead pipe guidance in Ada.

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Homebuyer's Perspective

Evaluating water infrastructure in Ada protects plumbing and helps estimate water heater longevity. The high safety score (86/100) suggests lower risk for plumbing corrosion and appliance scaling.

Property Impact: Positive / Stable

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 Ada

113
Violations (5yr)
41
Unresolved
1
Contaminants Tracked
0
Exceeding EPA Limit

Based on EPA SDWIS violation records and contaminant test results for all water systems serving Ada.

Frequently Asked Questions

Is Ada tap water safe to drink?

Mostly yes — Ada scores 86/100.

How many water systems serve Ada?

Ada is served by 3 public water systems in our latest EPA-backed dataset.

How can I check water quality for my exact address in Ada?

Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Ada.

What is the water quality score for Ada?

The water quality score for Ada is 86 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 Ada?

The top contaminants detected in Ada include Lead (90th percentile). View detailed information on our contaminants page.

Water Quality Score
86/100
Grade
B
Water Systems
3
Population
31,713

Ada Water Quality Summary

Ada, OK receives a water quality score of 86/100 (Grade B) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 3 public water systems serving the area.

Ada'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.

Ada's score of 86 is 48 points above the Oklahoma state average of 38, 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 Oklahoma water quality rankings report →

Key Contaminants

Lead (90th percentile)
0.00226 / 0.015 mg/L
0 mg/L MCL: 0.015 mg/L

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Water Systems Serving Ada (3)

Related

Compare Ada water quality: View all states · Contaminant library · How we score water quality