A89/100
MO AMERICAN ST LOUIS ST CHARLES COUNTIES — Water Quality Report 2026
Serving 1,111,000 people · Missouri
Water Source
Surface Water
County
—
System ID
MO6010716
Violations
3
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2010.
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 MO AMERICAN ST LOUIS ST CHARLES COUNTIES
Is MO AMERICAN ST LOUIS ST CHARLES COUNTIES water safe to drink?
MO AMERICAN ST LOUIS ST CHARLES COUNTIES water receives a grade of A (89/100), which is considered excellent. Out of 76 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has MO AMERICAN ST LOUIS ST CHARLES COUNTIES detected?
76 contaminants were tested in MO AMERICAN ST LOUIS ST CHARLES COUNTIES's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does MO AMERICAN ST LOUIS ST CHARLES COUNTIES have any EPA violations?
Yes, MO AMERICAN ST LOUIS ST CHARLES COUNTIES has 3 EPA violation(s) on record, with the most recent in 2010. Violation types include TT, MR. 2 are health-based violations.
How many people does MO AMERICAN ST LOUIS ST CHARLES COUNTIES serve?
MO AMERICAN ST LOUIS ST CHARLES COUNTIES serves approximately 1,111,000 people, Missouri.
What type of water does MO AMERICAN ST LOUIS ST CHARLES COUNTIES provide?
MO AMERICAN ST LOUIS ST CHARLES COUNTIES 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 MO6010716.
How does MO AMERICAN ST LOUIS ST CHARLES COUNTIES compare to other utilities in Missouri?
MO AMERICAN ST LOUIS ST CHARLES COUNTIES scores 89/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Missouri state page for a full comparison of water systems.