WaterQ
Virginia State Report All States
Official Status: March 2026

Is Dulles tap water safe to drink?

✓ Generally Safe
A

Mostly yes — Dulles scores 92/100.

Safety Score
92
out of 100

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Dulles

Virginia

View Virginia state report Data updated: Mar 2026

Is Dulles tap water safe to drink?

Mostly yes — Dulles scores 92/100. This report aggregates EPA drinking water data across 1 local system in Dulles. We found 34 total violations (30 unresolved).

Real-Time Environment

Live: 11:45 AM
0mm Precipitation

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

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 Dulles?

Requirement Status
Optional
🟢
💡

Expert Advice

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

Buying a Filter?

Evaluation of municipal compliance and household filtration options in Dulles.

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Baby Formula Safety

EPA compliance thresholds and pediatric water precautions for Dulles.

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Homebuyer's Perspective

Water system history in Dulles informs property maintenance and private filtration requirements. The high safety score (92/100) 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 Dulles

34
Violations (5yr)
30
Unresolved
1
Contaminants Tracked
0
Exceeding EPA Limit

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

Frequently Asked Questions

Is Dulles tap water safe to drink?

Mostly yes — Dulles scores 92/100.

How many water systems serve Dulles?

Dulles is served by 1 public water system in our latest EPA-backed dataset.

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

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

What is the water quality score for Dulles?

The water quality score for Dulles is 92 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 Dulles?

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

Water Quality Score
92/100
Grade
A
Water Systems
1
Population
76,500

Dulles Water Quality Summary

Dulles, VA receives a water quality score of 92/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.

Dulles'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.

Dulles's score of 92 is 7 points above the Virginia state average of 85, and above the nationwide average of roughly 78/100 across all U.S. states.

Dulles, a mid-size Virginia city, sits in a Mid-Atlantic landscape characterized by the coastal plain, Appalachian foothills, and dense DC-suburb growth. Serving this entire community is a single water system, making it relatively straightforward for residents to trace the source of their tap water. Prospective homebuyers will find reassurance in the city's exceptionally high water quality rating, which suggests that municipal infrastructure is successfully keeping pace with rapid regional development. For local households, this translates to regulatory assurance regarding daily water usage in an otherwise fast-changing suburban environment.

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

Key Contaminants

Lead (90th percentile)
0.002 / 0.015 mg/L
0 mg/L MCL: 0.015 mg/L

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Water Systems Serving Dulles (1)

Related

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