A81/100
Dilworth Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 4,918 residents · Minnesota
What's In Dilworth's Tap Water?
35
Contaminants Tested
1
Exceed EPA Limits
0
Above EPA Goals
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
Water Utility Details
Dilworth
Population Served
4,918
Water Source
Purchased Surface Water
System ID
MN1140003
Frequently Asked Questions About Dilworth Water
Is Dilworth tap water safe to drink?
Dilworth, Minnesota tap water receives a grade of A (81/100), which is considered excellent. Out of 35 contaminants tested, 1 exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Dilworth's water?
Of the 35 contaminants tested in Dilworth's water supply, the most notable include Copper (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Dilworth have any water quality violations?
Yes, Dilworth has 7 EPA violation(s) on record, with the most recent in 2025. Violation types include MON, MR, MCL. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Dilworth?
Based on EPA data, using a water filter in Dilworth is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Dilworth's tap water come from?
Dilworth's drinking water is sourced from purchased surface water and supplied by Dilworth. The system serves approximately 4,918 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Dilworth's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Dilworth's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Dilworth's water compare to other cities in Minnesota?
Dilworth's water quality score of 81/100 earns a grade of A, which is considered excellent. This places Dilworth among the better-performing water systems in Minnesota. Visit our Minnesota state page to see how all cities in the state compare.
What should I do if I'm concerned about Dilworth's water quality?
If you have concerns about Dilworth's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (Dilworth) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.