B68/100
OROSI PUBLIC UTILITY DISTRICT — Water Quality Report 2026
Serving 8,300 people · California
Water Source
Groundwater
County
—
System ID
CA5410008
Violations
8
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1998.
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 OROSI PUBLIC UTILITY DISTRICT
Is OROSI PUBLIC UTILITY DISTRICT water safe to drink?
OROSI PUBLIC UTILITY DISTRICT water receives a grade of B (68/100), which is considered good. Out of 31 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has OROSI PUBLIC UTILITY DISTRICT detected?
31 contaminants were tested in OROSI PUBLIC UTILITY DISTRICT's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does OROSI PUBLIC UTILITY DISTRICT have any EPA violations?
Yes, OROSI PUBLIC UTILITY DISTRICT has 8 EPA violation(s) on record, with the most recent in 1998. Violation types include MCL, MR. 6 are health-based violations.
How many people does OROSI PUBLIC UTILITY DISTRICT serve?
OROSI PUBLIC UTILITY DISTRICT serves approximately 8,300 people, California.
What type of water does OROSI PUBLIC UTILITY DISTRICT provide?
OROSI PUBLIC UTILITY DISTRICT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA5410008.
How does OROSI PUBLIC UTILITY DISTRICT compare to other utilities in California?
OROSI PUBLIC UTILITY DISTRICT scores 68/100 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.