B70/100
Lonsdale — Water Quality Report 2026
Serving 3,913 people · Minnesota
Water Source
Groundwater
County
—
System ID
MN1660006
Violations
11
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.40 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 2008.
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 Lonsdale
Is Lonsdale water safe to drink?
Lonsdale water receives a grade of B (70/100), which is considered good. Out of 32 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has Lonsdale detected?
32 contaminants were tested in Lonsdale's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does Lonsdale have any EPA violations?
Yes, Lonsdale has 11 EPA violation(s) on record, with the most recent in 2008. Violation types include MCL, MR. 2 are health-based violations.
How many people does Lonsdale serve?
Lonsdale serves approximately 3,913 people, Minnesota.
What type of water does Lonsdale provide?
Lonsdale sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MN1660006.
How does Lonsdale compare to other utilities in Minnesota?
Lonsdale scores 70/100 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.