A100/100
COMMERCE-CITY, WATER DEPT. — Water Quality Report 2026
Serving 4,205 people · California
Water Source
Purchased Surface Water
County
—
System ID
CA1910050
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 COMMERCE-CITY, WATER DEPT.
Is COMMERCE-CITY, WATER DEPT. water safe to drink?
COMMERCE-CITY, WATER DEPT. water receives a grade of A (100/100), which is considered excellent. Out of 51 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has COMMERCE-CITY, WATER DEPT. detected?
51 contaminants were tested in COMMERCE-CITY, WATER DEPT.'s water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does COMMERCE-CITY, WATER DEPT. have any EPA violations?
No, COMMERCE-CITY, WATER DEPT. has zero EPA violations on record. This indicates consistent compliance with federal drinking water standards.
How many people does COMMERCE-CITY, WATER DEPT. serve?
COMMERCE-CITY, WATER DEPT. serves approximately 4,205 people, California. The system provides water to 1 community: Montebello.
What type of water does COMMERCE-CITY, WATER DEPT. provide?
COMMERCE-CITY, WATER DEPT. sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is CA1910050.
How does COMMERCE-CITY, WATER DEPT. compare to other utilities in California?
COMMERCE-CITY, WATER DEPT. 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.