A84/100
LOMA LINDA, CITY OF — Water Quality Report 2026
Serving 25,129 people · California
Water Source
Groundwater
County
—
System ID
CA3610013
Violations
4
Contaminant Test Results
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: September 1, 2022 – September 30, 2022Rule: Revised Total Coliform RuleEnforcement: Resolving — corrective action underway
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 LOMA LINDA, CITY OF
Is LOMA LINDA, CITY OF water safe to drink?
LOMA LINDA, CITY OF water receives a grade of A (84/100), which is considered excellent. Out of 66 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has LOMA LINDA, CITY OF detected?
66 contaminants were tested in LOMA LINDA, CITY OF's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does LOMA LINDA, CITY OF have any EPA violations?
Yes, LOMA LINDA, CITY OF has 4 EPA violation(s) on record, with the most recent in 2022. Violation types include MR, MCL. 3 are health-based violations.
How many people does LOMA LINDA, CITY OF serve?
LOMA LINDA, CITY OF serves approximately 25,129 people, California. The system provides water to 1 community: Loma Linda.
What type of water does LOMA LINDA, CITY OF provide?
LOMA LINDA, CITY OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is CA3610013.
How does LOMA LINDA, CITY OF compare to other utilities in California?
LOMA LINDA, CITY OF scores 84/100 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.