Is Stockton, MN tap water safe?
The short answer
2 of the 3 utilities serving Stockton have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Minnesota’s records: Winona and Stockton.
Winona, which serves the most people here, has 1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 50.1 ppb, above EPA’s health benchmark. Health goals are stricter than legal limits and are not enforced.
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 Stockton’s ZIP codes, from EPA’s estimates.
- Open report
Winona
Minnesota · serves 27,782 people · about 280 in Stockton
1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 50.1 ppb, above EPA’s health benchmark.
8 health-based violations since 2016
- Open report
Goodview
Minnesota · serves 4,158 people · under 100 in Stockton
1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 50 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
Stockton
Minnesota · serves 697 people · under 100 in Stockton
1 result above the health goal. The worst: Lead at 3.0 ppb, above the health goal.
1 health-based violation since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Winona’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Brita Tahoe Pitcher with Elite Filter (OB60, OB06)
Pitcher
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 13, 2026
- IAPMO listing:NSF/ANSI 53checked Oct. 13, 2026
Certified for: Lead
Brita Everyday Pitcher with Elite Filter (OB46, OB06)
Pitcher
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 13, 2026
Certified for: Lead
PUR PLUS 11-Cup Pitcher (PPT111W)
Pitcher
- NSF listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
Certified for: Lead
Water testing near Stockton
The 3 labs Minnesota certifies closest to Stockton, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Fillmore SWCD Water Quality Laboratory
Preston, MN · about 36 miles
Certified for bacteria
Southeastern Minnesota Water Analysis Laboratory
Rochester, MN · about 39 miles
Certified for bacteria, nitrate
Red Wing City Laboratory
Red Wing, MN · about 58 miles
Certified for bacteria
ZIP codes in Stockton
Which ZIP codes are in Stockton: 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 Stockton
Towns nearby with a page of their own.
What to do next
- Read Winona’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About LithiumWhat it does to health, where it comes from, and the certification claim that addresses it.About Lithium
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water