WaterQ
Washington State Report All States
Official Status: March 2026

Is Renton tap water safe to drink?

✓ Generally Safe
A

Mostly yes — Renton scores 99/100.

Safety Score
99
out of 100

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Renton

Washington

View Washington state report Data updated: Mar 2026

Is Renton tap water safe to drink?

Mostly yes — Renton scores 99/100. This report aggregates EPA drinking water data across 3 local systems in Renton. We found 322 total violations (9 unresolved).

Real-Time Environment

Live: 11:00 AM
0mm Precipitation

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

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 Renton?

Requirement Status
Optional
🟢
💡

Expert Advice

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

Buying a Filter?

Filtration technologies matched to Renton contaminant records.

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Baby Formula Safety

Guidance on preparing infant formula using municipal tap water in Renton.

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Homebuyer's Perspective

Municipal water quality in Renton directly influences pipe corrosion rates and home filtration needs. The high safety score (99/100) 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 Renton

322
Violations (5yr)
9
Unresolved
1
Contaminants Tracked
0
Exceeding EPA Limit

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

Frequently Asked Questions

Is Renton tap water safe to drink?

Mostly yes — Renton scores 99/100.

How many water systems serve Renton?

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

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

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

What is the water quality score for Renton?

The water quality score for Renton is 99 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 Renton?

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

Water Quality Score
99/100
Grade
A
Water Systems
3
Population
202,363

Renton Water Quality Summary

Renton, WA receives a water quality score of 99/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 3 public water systems serving the area.

Renton'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.

Renton's score of 99 is 5 points above the Washington state average of 94, and above the nationwide average of roughly 78/100 across all U.S. states.

Residents of this mid-size city in Washington benefit from the naturally clean source water characteristic of the Pacific Northwest's forested mountains and Puget Sound coastline. Across the three distinct water systems serving Renton, tap supply monitoring yields near-perfect marks for safety and quality. For prospective homebuyers or families relocating to the area, this exceptional standard of utility performance provides strong assurance about the local infrastructure's reliability.

Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Washington water quality rankings report →

Key Contaminants

Lead (90th percentile)
0.0019 / 0.015 mg/L
0 mg/L MCL: 0.015 mg/L

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Water Systems Serving Renton (3)

Related

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