A98/100
Dayton — Water Quality Report 2026
Serving 4,930 people · Minnesota
Water Source
Groundwater
County
—
System ID
MN1270073
Violations
2
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2014.
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 Dayton
Is Dayton water safe to drink?
Dayton water receives a grade of A (98/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has Dayton detected?
1 contaminants were tested in Dayton's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does Dayton have any EPA violations?
Yes, Dayton has 2 EPA violation(s) on record, with the most recent in 2014. Violation types include MR.
How many people does Dayton serve?
Dayton serves approximately 4,930 people, Minnesota.
What type of water does Dayton provide?
Dayton sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MN1270073.
How does Dayton compare to other utilities in Minnesota?
Dayton scores 98/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Minnesota state page for a full comparison of water systems.