WaterQ
California State Report All States
Official Status: March 2026

Is Vallejo tap water safe to drink?

✓ Generally Safe
A

Mostly yes — Vallejo scores 99/100.

Safety Score
99
out of 100

Still not sure if you need a filter in Vallejo?

Read Decision Guide →

Vallejo

California

View California state report Data updated: Mar 2026

Is Vallejo tap water safe to drink?

Mostly yes — Vallejo scores 99/100. This report aggregates EPA drinking water data across 0 local systems in Vallejo. We found 0 total violations (0 unresolved).

Real-Time Environment

Live: 02:30 AM
0mm Precipitation

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

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 Vallejo?

Requirement Status
Optional
🟢
💡

Expert Advice

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

Buying a Filter?

Wondering if Vallejo tap water needs filtering? We break it down.

Baby Formula Safety

Mixing baby formula with Vallejo tap water? Read this first.

Homebuyer's Perspective

If you're house-hunting in Vallejo, water quality belongs on your due-diligence checklist alongside schools and crime data. The high safety score (99/100) suggests lower risk for plumbing corrosion and appliance scaling.

Property Impact: Positive / Stable

Health & Family Safety

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

View Health Risk Glossary →

Compliance Record for Vallejo

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

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

Frequently Asked Questions

Is Vallejo tap water safe to drink?

Mostly yes — Vallejo scores 99/100.

How many water systems serve Vallejo?

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

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

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

What is the water quality score for Vallejo?

The water quality score for Vallejo is 99 out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.

What are the top contaminants in Vallejo?

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

Water Quality Score
99/100
Grade
A
Water Systems
2
Population
124,220

Vallejo Water Quality Summary

Vallejo, CA receives a water quality score of 99/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 2 public water systems serving the area.

Vallejo'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.

Vallejo's score of 99 is 9 points above the California state average of 90, and above the nationwide average of roughly 78/100 across all U.S. states.

For families and homebuyers looking at this mid-size California city, the local tap water stands out as a highly reliable resource, receiving top-tier ratings across the board. Vallejo's two water systems successfully buffer residents from the typical runoff and contaminant risks associated with the West Coast's varied geology, large urban centers, and Central Valley agricultural operations. This consistent level of protective management means households can count on clean water directly from their taps for everyday use.

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

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Water Systems Serving Vallejo (0)

Water system data coming soon for Vallejo.

Related

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