A100/100
SAN BERNARDINO CITY — Water Quality Report 2026
Serving 214,665 people · California
Water Source
Groundwater
County
—
System ID
CA3610039
Violations
0
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
This system has a clean compliance history.
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 SAN BERNARDINO CITY
Is SAN BERNARDINO CITY water safe to drink?
SAN BERNARDINO CITY water receives a grade of A (100/100), which is considered excellent. Out of 73 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has SAN BERNARDINO CITY detected?
73 contaminants were tested in SAN BERNARDINO CITY's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does SAN BERNARDINO CITY have any EPA violations?
No, SAN BERNARDINO CITY has zero EPA violations on record. This indicates consistent compliance with federal drinking water standards.
How many people does SAN BERNARDINO CITY serve?
SAN BERNARDINO CITY serves approximately 214,665 people, California. The system provides water to 1 community: San Bernardin0.
What type of water does SAN BERNARDINO CITY provide?
SAN BERNARDINO CITY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA3610039.
How does SAN BERNARDINO CITY compare to other utilities in California?
SAN BERNARDINO CITY scores 100/100 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.