C49/100
La Habra Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 63,118 residents · California
What's In La Habra's Tap Water?
69
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
1,4-dioxane | 0.590 µg/L | — | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2015.
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
CITY OF LA HABRA
Population Served
63,118
Water Source
Purchased Surface Water
System ID
CA3010018
Frequently Asked Questions About La Habra Water
Is La Habra tap water safe to drink?
La Habra, California tap water receives a grade of C (49/100), which is considered fair. 0 contaminant(s) exceed EPA maximum contaminant levels and 48 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in La Habra's water?
Of the 69 contaminants tested in La Habra's water supply, the most notable include 1,4-dioxane. No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does La Habra have any water quality violations?
Yes, La Habra has 48 EPA violation(s) on record, with the most recent in 2015. Violation types include MR. None of these are classified as health-based violations.
Do I need a water filter in La Habra?
La Habra 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. 1 contaminant(s) exceed these stricter goals.
Where does La Habra's tap water come from?
La Habra's drinking water is sourced from purchased surface water and supplied by CITY OF LA HABRA. The system serves approximately 63,118 people. Surface water sources include rivers, lakes, and reservoirs.
How often is La Habra'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 Habra'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 Habra's water compare to other cities in California?
La Habra's water quality score of 49/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our California state page to see how all cities in the state compare.
What should I do if I'm concerned about La Habra's water quality?
If you have concerns about La Habra'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 (CITY OF LA HABRA) 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.