A90/100
La Canada Flintridge Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 10,070 residents · California
What's In La Canada Flintridge's Tap Water?
38
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1994.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
VALLEY WATER CO.
Population Served
10,070
Water Source
Purchased Surface Water
System ID
CA1910166
Frequently Asked Questions About La Canada Flintridge Water
Is La Canada Flintridge tap water safe to drink?
La Canada Flintridge, California tap water receives a grade of A (90/100), which is considered excellent. Out of 38 contaminants tested, none exceed EPA maximum contaminant levels (MCLs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in La Canada Flintridge's water?
38 contaminants were tested in La Canada Flintridge's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does La Canada Flintridge have any water quality violations?
Yes, La Canada Flintridge has 2 EPA violation(s) on record, with the most recent in 1994. Violation types include MCL. 2 of these are health-based violations, which are the most serious category.
Do I need a water filter in La Canada Flintridge?
La Canada Flintridge water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. All contaminants are within health goals.
Where does La Canada Flintridge's tap water come from?
La Canada Flintridge's drinking water is sourced from purchased surface water and supplied by VALLEY WATER CO.. The system serves approximately 10,070 people. Surface water sources include rivers, lakes, and reservoirs.
How often is La Canada Flintridge's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. La Canada Flintridge's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does La Canada Flintridge's water compare to other cities in California?
La Canada Flintridge's water quality score of 90/100 earns a grade of A, which is considered excellent. This places La Canada Flintridge among the better-performing water systems in California. Visit our California state page to see how all cities in the state compare.
What should I do if I'm concerned about La Canada Flintridge's water quality?
If you have concerns about La Canada Flintridge's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (VALLEY WATER CO.) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.