A91/100
CITY OF ANAHEIM — Water Quality Report 2026
Serving 348,593 people · California
Water Source
Surface Water
County
—
System ID
CA3010001
Violations
3
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 622.00 µg/L | — | Above Goal |
1,4-dioxane | 0.639 µg/L | — | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Other Violation
When: October 1, 2022 – November 11, 2022Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Other Violation
When: October 1, 2021 – November 5, 2021Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
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 ANAHEIM
Is CITY OF ANAHEIM water safe to drink?
CITY OF ANAHEIM water receives a grade of A (91/100), 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 ANAHEIM detected?
76 contaminants were tested in CITY OF ANAHEIM's water. Notable contaminants include chlorate, 1,4-dioxane. No contaminants exceed EPA legal limits. 2 exceed EPA health goals (MCLGs).
Does CITY OF ANAHEIM have any EPA violations?
Yes, CITY OF ANAHEIM has 3 EPA violation(s) on record, with the most recent in 2022. Violation types include Other.
How many people does CITY OF ANAHEIM serve?
CITY OF ANAHEIM serves approximately 348,593 people, California. The system provides water to 1 community: Anaheim.
What type of water does CITY OF ANAHEIM provide?
CITY OF ANAHEIM sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is CA3010001.
How does CITY OF ANAHEIM compare to other utilities in California?
CITY OF ANAHEIM scores 91/100 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.