Mountain View
Is Mountain View tap water safe to drink?
Mostly yes — Mountain View scores 100/100. This report aggregates EPA drinking water data across 2 local systems in Mountain View. We found 22 total violations (2 unresolved).
Real-Time Environment
Live: 12:30 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Mountain View.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Mountain View?
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 Mountain View.
Baby Formula Safety
EPA compliance thresholds and pediatric water precautions for Mountain View.
Homebuyer's Perspective
Water system history in Mountain View informs property maintenance and private filtration requirements. The high safety score (100/100) suggests lower risk for plumbing corrosion and appliance scaling.
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 Mountain View
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Mountain View.
Frequently Asked Questions
Is Mountain View tap water safe to drink?
Mostly yes — Mountain View scores 100/100.
How many water systems serve Mountain View?
Mountain View is served by 2 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Mountain View?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Mountain View.
What is the water quality score for Mountain View?
The water quality score for Mountain View is 100 out of 100, based on EPA contaminant data, violation history, and testing results across the 2 systems serving the city.
What are the top contaminants in Mountain View?
The top contaminants detected in Mountain View include Lead (90th percentile). View detailed information on our contaminants page.
Mountain View Water Quality Summary
Mountain View, CA receives a water quality score of 100/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 2 public water systems serving the area.
Mountain View'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.
Mountain View's score of 100 is 11 points above the California state average of 89, and above the nationwide average of roughly 78/100 across all U.S. states.
As a mid-size city on the West Coast, Mountain View, California is situated in a region defined by varied geology, large urban centers, and Central Valley agriculture. Despite these complex regional conditions, each of the local water systems delivers water that achieves a perfect score and the highest letter grade. For current residents and prospective homebuyers, this means they can expect exceptionally reliable water quality at their taps, regardless of which system services their home.
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 →
Key Contaminants
Join the Mountain View updates waitlist
We are developing email updates. This form records your interest; automated violation and boil-water advisory emails are not active.
We will use your address to contact you if updates become available. See our Privacy Policy.
Water Systems Serving Mountain View (2)
Check Your Specific Address
Water quality can vary by neighborhood in Mountain View.
Related
Quick compare in California
Compare Mountain View water quality: View all states · Contaminant library · How we score water quality