A93/100
CITY OF NEWPORT BEACH — Water Quality Report 2026
Serving 68,572 people · California
Water Source
Purchased Surface Water
County
—
System ID
CA3010023
Violations
1
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 265.00 µg/L | — | Above Goal |
1,4-dioxane | 1.81 µg/L | — | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2004.
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 NEWPORT BEACH
Is CITY OF NEWPORT BEACH water safe to drink?
CITY OF NEWPORT BEACH water receives a grade of A (93/100), 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 NEWPORT BEACH detected?
76 contaminants were tested in CITY OF NEWPORT BEACH's water. Notable contaminants include chlorate, 1,4-dioxane. No contaminants exceed EPA legal limits. 2 exceed EPA health goals (MCLGs).
Does CITY OF NEWPORT BEACH have any EPA violations?
Yes, CITY OF NEWPORT BEACH has 1 EPA violation(s) on record, with the most recent in 2004. Violation types include MR.
How many people does CITY OF NEWPORT BEACH serve?
CITY OF NEWPORT BEACH serves approximately 68,572 people, California. The system provides water to 1 community: Newport Beach.
What type of water does CITY OF NEWPORT BEACH provide?
CITY OF NEWPORT BEACH 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 CA3010023.
How does CITY OF NEWPORT BEACH compare to other utilities in California?
CITY OF NEWPORT BEACH scores 93/100 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.