Is Willmar, MN tap water safe?
The short answer
1 of the 2 utilities serving Willmar has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Minnesota’s records: Willmar.
Willmar, which serves the most people here, has 1 result above the action level, 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Copper at 1.7 ppm, above the action level.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Willmar’s ZIP codes, from EPA’s estimates.
- Open report
Willmar
Minnesota · serves 21,991 people · about 2,500 in Willmar
1 result above the action level, 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Copper at 1.7 ppm, above the action level.
No health-based violations since 2016
- Open report
Sunray Glacial Waters Inc
Minnesota · serves 90 people · under 100 in Willmar
1 result above the health goal. The worst: Lead at 3.0 ppb, above the health goal.
No health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Willmar’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Copper, Lead, Arsenic
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Copper, Lead, Arsenic
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 58checked Oct. 9, 2026
Certified for: Copper, Lead, Arsenic
Water testing near Willmar
The 3 labs Minnesota certifies closest to Willmar, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Traut Water Analysis Lab
St. Joseph, MN · about 53 miles
Certified for bacteria, nitrate
Steven M. Traut Wells, Inc.
Alexandria, MN · about 56 miles
Certified for bacteria, nitrate
Southwest Health and Human Services
Marshall, MN · about 57 miles
Certified for bacteria, nitrate
ZIP codes in Willmar
Which ZIP codes are in Willmar: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: Minnesota Department of Health, accredited labs in Minnesota accepting drinking water samples from private well users; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Willmar
Towns nearby with a page of their own.
What to do next
- Read Willmar’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About CopperWhat it does to health, where it comes from, and the certification claim that addresses it.About Copper
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water