A82/100
CITY OF FULLERTON — Water Quality Report 2026
Serving 139,461 people · California
Water Source
Purchased Surface Water
County
—
System ID
CA3010010
Violations
4
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
1,4-dioxane | 0.418 µg/L | — | Above Goal |
Lead (90th percentile) | 0.002 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
Frequently Asked Questions About CITY OF FULLERTON
Is CITY OF FULLERTON water safe to drink?
CITY OF FULLERTON water receives a grade of A (82/100), which is considered excellent. Out of 76 contaminants tested, none exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has CITY OF FULLERTON detected?
76 contaminants were tested in CITY OF FULLERTON's water. Notable contaminants include Lead (90th percentile), 1,4-dioxane. No contaminants exceed EPA legal limits. 2 exceed EPA health goals (MCLGs).
Does CITY OF FULLERTON have any EPA violations?
Yes, CITY OF FULLERTON has 4 EPA violation(s) on record, with the most recent in 2017. Violation types include MCL, MR. 2 are health-based violations.
How many people does CITY OF FULLERTON serve?
CITY OF FULLERTON serves approximately 139,461 people, California. The system provides water to 1 community: Fullerton.
What type of water does CITY OF FULLERTON provide?
CITY OF FULLERTON sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is CA3010010.
How does CITY OF FULLERTON compare to other utilities in California?
CITY OF FULLERTON scores 82/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our California state page for a full comparison of water systems.