A93/100
Forest Lake — Water Quality Report 2026
Serving 11,800 people · Minnesota
Water Source
Groundwater
County
—
System ID
MN1820005
Violations
4
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2020.
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 Forest Lake
Is Forest Lake water safe to drink?
Forest Lake water receives a grade of A (93/100), which is considered excellent. Out of 51 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has Forest Lake detected?
51 contaminants were tested in Forest Lake's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does Forest Lake have any EPA violations?
Yes, Forest Lake has 4 EPA violation(s) on record, with the most recent in 2020. Violation types include MR.
How many people does Forest Lake serve?
Forest Lake serves approximately 11,800 people, Minnesota.
What type of water does Forest Lake provide?
Forest Lake sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MN1820005.
How does Forest Lake compare to other utilities in Minnesota?
Forest Lake scores 93/100 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.