A83/100
Maple Plain — Water Quality Report 2026
Serving 2,174 people · Minnesota
Water Source
Groundwater
County
—
System ID
MN1270021
Violations
2
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 2.30 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2013.
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 Maple Plain
Is Maple Plain water safe to drink?
Maple Plain water receives a grade of A (83/100), which is considered excellent. Out of 2 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has Maple Plain detected?
2 contaminants were tested in Maple Plain's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does Maple Plain have any EPA violations?
Yes, Maple Plain has 2 EPA violation(s) on record, with the most recent in 2013. Violation types include MCL, MR. 1 are health-based violations.
How many people does Maple Plain serve?
Maple Plain serves approximately 2,174 people, Minnesota.
What type of water does Maple Plain provide?
Maple Plain sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MN1270021.
How does Maple Plain compare to other utilities in Minnesota?
Maple Plain 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.