We read 17 results from Oakdale’s 2025 water quality report. No results over a legal limit; 3 above a health goal or guideline.
Serves about 28,674 people · Water system ID MN1820016 · 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 |
|---|---|---|---|---|
| Lead90th percentile of 30 homes tested, 0 over the action level · listed as a violation in the report · Customer taps · 2025 report, page 4 | 1.6 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal8x the health goal |
| PFOA (a PFAS)as reported · range ND to 1.5 · Drinking water · 2025 report, page 6 | 1.2 ppt | 0.007 ppt | 4 ppt from 2029 | Above the health goal171x the health goal |
| PFOS (a PFAS)as reported · range ND to 1.5 · Drinking water · 2025 report, page 6 | 1.1 ppt | 1 ppt | 4 ppt from 2029 | Above the health goal1.1x the health goal |
| Bariumas reported · range ND to 0.07 · listed as a violation in the report · Drinking water · 2025 report, page 4 | 0.07 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chlorineas reported · range 0.18 to 0.43 · listed as a violation in the report · Distribution system · 2025 report, page 5 | 0.32 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of 30 homes tested, 0 over the action level · listed as a violation in the report · Customer taps · 2025 report, page 4 | 0.14 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (TTHM)as reported · range ND to 3.4 · listed as a violation in the report · Distribution system · 2025 report, page 5 | 3.4 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideas reported · range 0.38 to 0.54 · listed as a violation in the report · Drinking water · 2025 report, page 5 | 0.52 ppm | 1 ppm | 4 ppm | Below the health goal |
| Nitrate (as N)as reported · range ND to 2.4 · listed as a violation in the report · Drinking water · 2025 report, page 4 | 2.4 ppm | 10 ppm | 10 ppm | Below the health goal |
| PFHxS (a PFAS)as reported · range ND to 2.6 · Drinking water · 2025 report, page 8 | 2.29 ppt | None set | 10 ppt from 2029 | Below the legal limit |
| Sulfateas reported · range 6.2 to 17.4 · Drinking water · 2025 report, page 8 | 17.4 ppm | — | 250 ppm guideline | Within the guideline |
| PFBA (a PFAS)as reported · range ND to 2,900 · Drinking water · 2025 report, page 8 | 1,313 ppt | None set | None | No health limit |
| PFBS (a PFAS)as reported · range ND to 0.9 · Drinking water · 2025 report, page 8 | 0.8 ppt | None set | None | No health limit |
| PFHpA (a PFAS)as reported · range ND to 0.55 · Drinking water · 2025 report, page 8 | 0.55 ppt | None set | None | No health limit |
| PFPeA (a PFAS)as reported · range ND to 21 · Drinking water · 2025 report, page 8 | 10.4 ppt | None set | None | No health limit |
| PFPeS (a PFAS)as reported · range ND to 0.42 · Drinking water · 2025 report, page 8 | 0.42 ppt | None set | None | No health limit |
| Sodiumas reported · range 11.3 to 36.4 · Drinking water · 2025 report, page 8 | 36.4 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.
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.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
PFAS ("forever chemicals")
Found: PFOA (a PFAS), PFOS (a PFAS)
What removes it: Reverse osmosis.
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