Chino Hills
Is Chino Hills tap water safe to drink?
Use extra caution — Chino Hills scores 40/100. This report aggregates EPA drinking water data across 1 local system in Chino Hills. We found 43 total violations (31 unresolved).
Real-Time Environment
Live: 07:30 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Chino Hills.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Chino Hills?
Expert Advice
Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.
Buying a Filter?
Should you buy a water purifier in Chino Hills? See our analysis.
Baby Formula Safety
Is Chino Hills tap water safe for infants? Critical safety guide.
Homebuyer's Perspective
For those looking to relocate to Chino Hills, water quality is a key factor in long-term property maintenance. With a score of 40/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.
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 Chino Hills
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Chino Hills.
Frequently Asked Questions
Is Chino Hills tap water safe to drink?
Use extra caution — Chino Hills scores 40/100.
How many water systems serve Chino Hills?
Chino Hills is served by 1 public water system in our latest EPA-backed dataset.
How can I check water quality for my exact address in Chino Hills?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Chino Hills.
What is the water quality score for Chino Hills?
The water quality score for Chino Hills is 40 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 Chino Hills?
The top contaminants detected in Chino Hills include Lead (90th percentile). View detailed information on our contaminants page.
Chino Hills Water Quality Summary
Chino Hills, CA receives a water quality score of 40/100 (Grade F) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.
Chino Hills's water quality score is below the national average, indicating a history of EPA violations or elevated contaminant levels. Residents are encouraged to check their specific water system report and consider additional filtration.
Chino Hills's score of 40 is 49 points below the California state average of 89, and below the nationwide average of roughly 78/100 across all U.S. states.
As a mid-size city in California, Chino Hills relies on a single water system that currently registers a failing mark. The community's position on the West Coast means its local supply is subject to regional influences, including proximity to large urban centers, Central Valley agriculture, and varied geology. For residents and prospective homebuyers, this poor environmental performance highlights the need to stay informed about local tap water safety.
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
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Water Systems Serving Chino Hills (1)
Check Your Specific Address
Water quality can vary by neighborhood in Chino Hills.
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