We read 11 results from Red Wing’s 2025 water quality report. No results over a legal limit; 3 above a health goal or guideline.
Water system ID MN1250013 · Read the district’s 2025 report (opens in a new tab)
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Results from the 2025 report
Each number is copied from the district’s report and links to the page it’s printed on. Where the report lists several plants, wells or purchased water, the highest is shown.
| Contaminant | Result | Health goal | Legal limit | What it means |
|---|---|---|---|---|
| Gross alpha (radioactivity)highest measured · range 5.1 to 14 · 2025 report, page 3 | 14 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Lead90th percentile of 30 homes tested, 0 over the action level · 2025 report, page 3 | 1.51 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal7.6x the health goal |
| Radium (combined 226 + 228)highest measured · range 1.2 to 2.3 · 2025 report, page 3 | 2.3 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Chlorinehighest measured · range 0.94 to 1.62 · 2025 report, page 4 | 1.29 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of 30 homes tested, 0 over the action level · 2025 report, page 3 | 0.1 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (TTHM)highest measured · range 0.8 to 1 · 2025 report, page 4 | 1 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · range 0.6 to 0.65 · 2025 report, page 4 | 0.64 ppm | 1 ppm | 4 ppm | Below the health goal |
| Nitrate (as N)highest measured · range 0.06 to 0.91 · 2025 report, page 3 | 0.91 ppm | 10 ppm | 10 ppm | Below the health goal |
| Sulfatehighest measured · range 18.8 to 192 · sampled 2023 · 2025 report, page 6 | 192 ppm | — | 250 ppm guideline | Within the guideline |
| Lithiumhighest measured · range 20.8 to 68.3 · 2025 report, page 6 | 68.3 ppb | None set | None | No health limit |
| Sodiumhighest measured · range 23.3 to 182 · sampled 2023 · 2025 report, page 6 | 182 ppm | None set | None | No health limit |
Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Red Wing’s water between Dec 2024 and Jun 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium70 ppbFound in 4 of 4 samples · highest resultAbove EPA’s health reference level of 10 ppb (a guide, not a legal limit)
Source: EPA UCMR 5 occurrence data. The highest single result is shown; one high sample doesn’t mean every glass is that high.
What you can do
Nothing here is an emergency notice: if the district has a violation, it must tell customers directly. If you’d like to lower these at your tap, these are the treatments that remove them, and the catalog shows the models certified for each. Ranking is by certified removal; commissions never change the order.
Radium and uranium
Found: Gross alpha (radioactivity), Radium (combined 226 + 228)
What removes it: Reverse osmosis.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
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