B60/100
Lewiston — Water Quality Report 2026
Serving 1,520 people · Minnesota
Water Source
Groundwater
County
—
System ID
MN1850006
Violations
16
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2018.
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 Lewiston
Is Lewiston water safe to drink?
Lewiston water receives a grade of B (60/100), which is considered good. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has Lewiston detected?
1 contaminants were tested in Lewiston's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does Lewiston have any EPA violations?
Yes, Lewiston has 16 EPA violation(s) on record, with the most recent in 2018. Violation types include MCL, MR. 6 are health-based violations.
How many people does Lewiston serve?
Lewiston serves approximately 1,520 people, Minnesota.
What type of water does Lewiston provide?
Lewiston sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MN1850006.
How does Lewiston compare to other utilities in Minnesota?
Lewiston scores 60/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Minnesota state page for a full comparison of water systems.