B79/100
CALEXICO, CITY OF — Water Quality Report 2026
Serving 40,357 people · California
Water Source
Purchased Surface Water
County
—
System ID
CA1310002
Violations
5
Contaminant Test Results
EPA Violation History
2
Violations (last 5yr)
2
Unresolved
1
Health-Related
TIER 3Unresolved
Reporting violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
TIER 2Unresolved
Treatment technique violation
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 CALEXICO, CITY OF
Is CALEXICO, CITY OF water safe to drink?
CALEXICO, CITY OF water receives a grade of B (79/100), which is considered good. Out of 69 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has CALEXICO, CITY OF detected?
69 contaminants were tested in CALEXICO, CITY OF's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does CALEXICO, CITY OF have any EPA violations?
Yes, CALEXICO, CITY OF has 5 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, MCL. 4 are health-based violations.
How many people does CALEXICO, CITY OF serve?
CALEXICO, CITY OF serves approximately 40,357 people, California. The system provides water to 1 community: Calexico.
What type of water does CALEXICO, CITY OF provide?
CALEXICO, CITY OF 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 CA1310002.
How does CALEXICO, CITY OF compare to other utilities in California?
CALEXICO, CITY OF scores 79/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our California state page for a full comparison of water systems.