A83/100
Long Prairie — Water Quality Report 2026
Serving 3,744 people · Minnesota
Water Source
Groundwater
County
—
System ID
MN1770007
Violations
5
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.46 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2003.
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 Long Prairie
Is Long Prairie water safe to drink?
Long Prairie water receives a grade of A (83/100), which is considered excellent. Out of 32 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has Long Prairie detected?
32 contaminants were tested in Long Prairie's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does Long Prairie have any EPA violations?
Yes, Long Prairie has 5 EPA violation(s) on record, with the most recent in 2003. Violation types include MCL, MR. 1 are health-based violations.
How many people does Long Prairie serve?
Long Prairie serves approximately 3,744 people, Minnesota.
What type of water does Long Prairie provide?
Long Prairie sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MN1770007.
How does Long Prairie compare to other utilities in Minnesota?
Long Prairie scores 83/100 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.