A82/100
CITY OF DIXON — Water Quality Report 2026
Serving 12,540 people · California
Water Source
Groundwater
County
—
System ID
CA4810009
Violations
2
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 310.00 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2002.
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 DIXON
Is CITY OF DIXON water safe to drink?
CITY OF DIXON water receives a grade of A (82/100), which is considered excellent. Out of 32 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has CITY OF DIXON detected?
32 contaminants were tested in CITY OF DIXON's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does CITY OF DIXON have any EPA violations?
Yes, CITY OF DIXON has 2 EPA violation(s) on record, with the most recent in 2002. Violation types include MCL. 2 are health-based violations.
How many people does CITY OF DIXON serve?
CITY OF DIXON serves approximately 12,540 people, California.
What type of water does CITY OF DIXON provide?
CITY OF DIXON sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA4810009.
How does CITY OF DIXON compare to other utilities in California?
CITY OF DIXON 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.