A81/100
Dilworth — Water Quality Report 2026
Serving 4,918 people · Minnesota
Water Source
Purchased Surface Water
County
—
System ID
MN1140003
Violations
7
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.50 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: February 1, 2025 – February 28, 2025Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2025 – January 31, 2025Rule: Total Coliform 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 Dilworth
Is Dilworth water safe to drink?
Dilworth water receives a grade of A (81/100), which is considered excellent. Out of 35 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has Dilworth detected?
35 contaminants were tested in Dilworth's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does Dilworth have any EPA violations?
Yes, Dilworth has 7 EPA violation(s) on record, with the most recent in 2025. Violation types include MON, MR, MCL. 1 are health-based violations.
How many people does Dilworth serve?
Dilworth serves approximately 4,918 people, Minnesota.
What type of water does Dilworth provide?
Dilworth sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is MN1140003.
How does Dilworth compare to other utilities in Minnesota?
Dilworth scores 81/100 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.