A94/100
CALIFORNIA WATER SERVICE CO. - DIXON — Water Quality Report 2026
Serving 10,623 people · California
Water Source
Groundwater
County
—
System ID
CA4810002
Violations
2
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1993.
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 CALIFORNIA WATER SERVICE CO. - DIXON
Is CALIFORNIA WATER SERVICE CO. - DIXON water safe to drink?
CALIFORNIA WATER SERVICE CO. - DIXON water receives a grade of A (94/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has CALIFORNIA WATER SERVICE CO. - DIXON detected?
31 contaminants were tested in CALIFORNIA WATER SERVICE CO. - DIXON's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does CALIFORNIA WATER SERVICE CO. - DIXON have any EPA violations?
Yes, CALIFORNIA WATER SERVICE CO. - DIXON has 2 EPA violation(s) on record, with the most recent in 1993. Violation types include MR, MCL. 1 are health-based violations.
How many people does CALIFORNIA WATER SERVICE CO. - DIXON serve?
CALIFORNIA WATER SERVICE CO. - DIXON serves approximately 10,623 people, California.
What type of water does CALIFORNIA WATER SERVICE CO. - DIXON provide?
CALIFORNIA WATER SERVICE CO. - DIXON sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA4810002.
How does CALIFORNIA WATER SERVICE CO. - DIXON compare to other utilities in California?
CALIFORNIA WATER SERVICE CO. - DIXON scores 94/100 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.