A99/100
VISTA IRRIGATION DISTRICT — Water Quality Report 2026
Serving 132,430 people · California
Water Source
Surface Water
County
—
System ID
CA3710027
Violations
1
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1988.
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 VISTA IRRIGATION DISTRICT
Is VISTA IRRIGATION DISTRICT water safe to drink?
VISTA IRRIGATION DISTRICT water receives a grade of A (99/100), which is considered excellent. Out of 76 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has VISTA IRRIGATION DISTRICT detected?
76 contaminants were tested in VISTA IRRIGATION DISTRICT's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does VISTA IRRIGATION DISTRICT have any EPA violations?
Yes, VISTA IRRIGATION DISTRICT has 1 EPA violation(s) on record, with the most recent in 1988. Violation types include Other.
How many people does VISTA IRRIGATION DISTRICT serve?
VISTA IRRIGATION DISTRICT serves approximately 132,430 people, California.
What type of water does VISTA IRRIGATION DISTRICT provide?
VISTA IRRIGATION DISTRICT 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 CA3710027.
How does VISTA IRRIGATION DISTRICT compare to other utilities in California?
VISTA IRRIGATION DISTRICT scores 99/100 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.