A96/100
Rosemount — Water Quality Report 2026
Serving 26,500 people · Minnesota
Water Source
Groundwater
County
—
System ID
MN1190019
Violations
1
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2022 – August 18, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
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 Rosemount
Is Rosemount water safe to drink?
Rosemount water receives a grade of A (96/100), which is considered excellent. Out of 66 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has Rosemount detected?
66 contaminants were tested in Rosemount's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does Rosemount have any EPA violations?
Yes, Rosemount has 1 EPA violation(s) on record, with the most recent in 2022. Violation types include MR.
How many people does Rosemount serve?
Rosemount serves approximately 26,500 people, Minnesota.
What type of water does Rosemount provide?
Rosemount sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MN1190019.
How does Rosemount compare to other utilities in Minnesota?
Rosemount scores 96/100 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.