A93/100
UPLAND, CITY OF — Water Quality Report 2026
Serving 78,376 people · California
Water Source
Surface Water
County
—
System ID
CA3610050
Violations
3
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2019.
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 UPLAND, CITY OF
Is UPLAND, CITY OF water safe to drink?
UPLAND, CITY OF water receives a grade of A (93/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has UPLAND, CITY OF detected?
69 contaminants were tested in UPLAND, CITY OF's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does UPLAND, CITY OF have any EPA violations?
Yes, UPLAND, CITY OF has 3 EPA violation(s) on record, with the most recent in 2019. Violation types include MR, MCL. 1 are health-based violations.
How many people does UPLAND, CITY OF serve?
UPLAND, CITY OF serves approximately 78,376 people, California. The system provides water to 1 community: Upland.
What type of water does UPLAND, CITY OF provide?
UPLAND, CITY OF 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 CA3610050.
How does UPLAND, CITY OF compare to other utilities in California?
UPLAND, CITY OF scores 93/100 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.