WaterQ
Virginia State Report All States
Official Status: March 2026

Is Herndon tap water safe to drink?

✓ Generally Safe
A

Mostly yes — Herndon scores 97/100.

Safety Score
97
out of 100

Still not sure if you need a filter in Herndon?

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Herndon

Virginia

View Virginia state report Verified: Apr 2026

Is Herndon tap water safe to drink?

Mostly yes — Herndon scores 97/100. This report aggregates EPA drinking water data across 0 local systems in Herndon. We found 0 total violations (0 unresolved).

Real-Time Environment

Live: 02:45 PM
0mm Precipitation

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

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 Herndon?

Requirement Status
Optional
🟢
💡

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 Herndon? See our analysis.

Baby Formula Safety

Is Herndon tap water safe for infants? Critical safety guide.

Homebuyer's Perspective

For those looking to relocate to Herndon, water quality is a key factor in long-term property maintenance. The high safety score (97/100) suggests lower risk for plumbing corrosion and appliance scaling.

Property Impact: Positive / Stable

Health & Family Safety

Current records show no major contaminant spikes, making Herndon a preferred choice for health-conscious families.

View Health Risk Glossary →

Score Breakdown for Herndon

EPA Compliance & Violations 85/100
Contaminant Safety Margin 97%

*Scores are calculated using weighted EPA monitoring data from the past 5 years.

Frequently Asked Questions

Is Herndon tap water safe to drink?

Mostly yes — Herndon scores 97/100.

How many water systems serve Herndon?

Herndon is served by 0 public water systems in our latest EPA-backed dataset.

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

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

What is the water quality score for Herndon?

The water quality score for Herndon is N/A out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.

What are the top contaminants in Herndon?

Current contaminant data for Herndon is being updated. Check back soon or search your specific address for the latest results.

Water Quality Score
97/100
Grade
A
Water Systems
2
Population
1.1M

Herndon Water Quality Summary

Herndon, VA receives a water quality score of 97/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 2 public water systems serving the area.

Herndon'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.

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

Water Systems Serving Herndon (0)

Water system data coming soon for Herndon.

Related

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