A93/100
Fountain Valley Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 56,747 residents · California
What's In Fountain Valley'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 |
|---|---|---|---|
Lead (90th percentile) | 0.006 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2017.
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 FOUNTAIN VALLEY
Population Served
56,747
Water Source
Purchased Surface Water
System ID
CA3010069
Frequently Asked Questions About Fountain Valley Water
Is Fountain Valley tap water safe to drink?
Fountain Valley, California tap water receives a grade of A (93/100), which is considered excellent. Out of 69 contaminants tested, none 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 Fountain Valley's water?
Of the 69 contaminants tested in Fountain Valley's water supply, the most notable include Lead (90th percentile). 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 Fountain Valley have any water quality violations?
Yes, Fountain Valley has 4 EPA violation(s) on record, with the most recent in 2017. Violation types include MR. None of these are classified as health-based violations.
Do I need a water filter in Fountain Valley?
Fountain Valley 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 Fountain Valley's tap water come from?
Fountain Valley's drinking water is sourced from purchased surface water and supplied by CITY OF FOUNTAIN VALLEY. The system serves approximately 56,747 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Fountain Valley'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. Fountain Valley'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 Fountain Valley's water compare to other cities in California?
Fountain Valley's water quality score of 93/100 earns a grade of A, which is considered excellent. This places Fountain Valley 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 Fountain Valley's water quality?
If you have concerns about Fountain Valley'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 FOUNTAIN VALLEY) 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.