A95/100
Grand Marais — Water Quality Report 2026
Serving 1,344 people · Minnesota
Water Source
Surface Water
County
—
System ID
MN1160001
Violations
5
Contaminant Test Results
EPA Violation History
2
Violations (last 5yr)
2
Unresolved
0
Health-Related
TIER 3Unresolved
Missed required monitoring deadline
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: September 1, 2023 – September 30, 2023Rule: Surface Water Treatment RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved
Missed required monitoring deadline
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: August 1, 2023 – August 31, 2023Rule: Surface Water Treatment RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
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 Grand Marais
Is Grand Marais water safe to drink?
Grand Marais water receives a grade of A (95/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has Grand Marais detected?
1 contaminants were tested in Grand Marais's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does Grand Marais have any EPA violations?
Yes, Grand Marais has 5 EPA violation(s) on record, with the most recent in 2023. Violation types include MR.
How many people does Grand Marais serve?
Grand Marais serves approximately 1,344 people, Minnesota.
What type of water does Grand Marais provide?
Grand Marais 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 MN1160001.
How does Grand Marais compare to other utilities in Minnesota?
Grand Marais scores 95/100 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.