A81/100
West Covina Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 7,775 residents · California
What's In West Covina's Tap Water?
34
Contaminants Tested
1
Exceed EPA Limits
0
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOA | 0.006 µg/L | 0.004 µg/L | Over Limit |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1996.
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
VALENCIA HEIGHTS WATER CO.
Population Served
7,775
Water Source
Purchased Surface Water
System ID
CA1910163
Frequently Asked Questions About West Covina Water
Is West Covina tap water safe to drink?
West Covina, California tap water receives a grade of A (81/100), which is considered excellent. Out of 34 contaminants tested, 1 exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in West Covina's water?
Of the 34 contaminants tested in West Covina's water supply, the most notable include PFOA. 1 contaminant(s) exceed EPA legal limits (MCLs). 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does West Covina have any water quality violations?
Yes, West Covina has 3 EPA violation(s) on record, with the most recent in 1996. Violation types include MCL, MR, TT. 2 of these are health-based violations, which are the most serious category.
Do I need a water filter in West Covina?
Based on EPA data, using a water filter in West Covina is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does West Covina's tap water come from?
West Covina's drinking water is sourced from purchased surface water and supplied by VALENCIA HEIGHTS WATER CO.. The system serves approximately 7,775 people. Surface water sources include rivers, lakes, and reservoirs.
How often is West Covina'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. West Covina'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 West Covina's water compare to other cities in California?
West Covina's water quality score of 81/100 earns a grade of A, which is considered excellent. This places West Covina 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 West Covina's water quality?
If you have concerns about West Covina'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 (VALENCIA HEIGHTS 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.