Daly City
Is Daly City tap water safe to drink?
Mostly yes — Daly City scores 90/100. This report aggregates EPA drinking water data across 0 local systems in Daly City. We found 0 total violations (0 unresolved).
Real-Time Environment
Live: 11:15 AM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Daly City.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Daly City?
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 Daly City? See our analysis.
Baby Formula Safety
Is Daly City tap water safe for infants? Critical safety guide.
Homebuyer's Perspective
For those looking to relocate to Daly City, water quality is a key factor in long-term property maintenance. The high safety score (90/100) suggests lower risk for plumbing corrosion and appliance scaling.
Health & Family Safety
Current records show no major contaminant spikes, making Daly City a preferred choice for health-conscious families.
View Health Risk Glossary →Compliance Record for Daly City
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Daly City.
Frequently Asked Questions
Is Daly City tap water safe to drink?
Mostly yes — Daly City scores 90/100.
How many water systems serve Daly City?
Daly City is served by 0 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Daly City?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Daly City.
What is the water quality score for Daly City?
The water quality score for Daly City is 90 out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.
What are the top contaminants in Daly City?
Current contaminant data for Daly City is being updated. Check back soon or search your specific address for the latest results.
Daly City Water Quality Summary
Daly City, CA receives a water quality score of 90/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.
Daly City'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.
Daly City's score of 90 matches the California state average, and above the nationwide average of roughly 78/100 across all U.S. states.
For households and prospective homebuyers in this mid-size California community, Daly City's single water system delivers highly reliable tap water that stands out for its excellent quality. Managing water quality here requires navigating the unique environmental conditions of the West Coast, where local supplies are shaped by surrounding urban centers, Central Valley agriculture, and diverse geological formations. The consistently high marks earned by the local system demonstrate that robust filtration and monitoring are effectively mitigating these regional runoff and mineral challenges. This strong performance offers residents peace of mind, ensuring that clean, compliant water remains a dependable standard for the entire municipality.
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 Daly City (0)
Water system data coming soon for Daly City.
Check Your Specific Address
Water quality can vary by neighborhood in Daly City.
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