F0/100
CITY OF MORGAN HILL — Water Quality Report 2026
Serving 47,374 people · California
Water Source
Groundwater
County
—
System ID
CA4310006
Violations
72
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1999.
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 MORGAN HILL
Is CITY OF MORGAN HILL water safe to drink?
CITY OF MORGAN HILL water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 72 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has CITY OF MORGAN HILL detected?
73 contaminants were tested in CITY OF MORGAN HILL's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does CITY OF MORGAN HILL have any EPA violations?
Yes, CITY OF MORGAN HILL has 72 EPA violation(s) on record, with the most recent in 1999. Violation types include MR, MCL. 70 are health-based violations.
How many people does CITY OF MORGAN HILL serve?
CITY OF MORGAN HILL serves approximately 47,374 people, California. The system provides water to 1 community: Morgan Hill.
What type of water does CITY OF MORGAN HILL provide?
CITY OF MORGAN HILL sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA4310006.
How does CITY OF MORGAN HILL compare to other utilities in California?
CITY OF MORGAN HILL scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our California state page for a full comparison of water systems.