We read 20 results from Marshfield Pws’s 2025 water quality report. No results over a legal limit or above a health goal.
Serves about 7,425 people · Water system ID MO5010503 · 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 |
|---|---|---|---|---|
| Bariumhighest measured · range 0.09 to 0.17 · 2025 report, page 2 | 0.17 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range ND to 5.36 · 2025 report, page 3 | 5.36 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.21 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (TTHM)highest running annual average · range 4.97 to 4.97 · DBPDUAL-01, highest of 2 sources · 2025 report, page 2 | 5 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · range ND to 0.11 · 2025 report, page 2 | 0.11 ppm | 1 ppm | 4 ppm | Below the health goal |
| Ironhighest measured · range 0.0063 to 0.12 · 2025 report, page 3 | 0.12 ppm | — | 0.3 ppm guideline | Within the guideline |
| Lead90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Manganesehighest measured · range 0.0011 to 0.0054 · 2025 report, page 3 | 0.0054 ppm | — | 0.05 ppm guideline | Within the guideline |
| Nitrate (as N)highest measured · range ND to 0.2 · 2025 report, page 2 | 0.2 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHhighest measured · range 8.19 to 8.33 · 2025 report, page 3 | 8.33 | — | — | Normal range |
| Sulfatehighest measured · range 17.9 to 97.3 · 2025 report, page 3 | 97.3 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 224 to 344 · 2025 report, page 3 | 344 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range ND to 0.03 · 2025 report, page 3 | 0.03 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 206 to 288 · 2025 report, page 3 | 288 ppm | None set | None | No health limit |
| Calciumhighest measured · range 46.9 to 66.2 · 2025 report, page 3 | 66.2 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 12.3 to 17.6 · 2025 report, page 3 | 17.6 gpg (301 ppm) | — | — | Very hard |
| Magnesiumhighest measured · range 22.9 to 33 · 2025 report, page 3 | 33 ppm | None set | None | No health limit |
| Nickelhighest measured · range 1.84 to 2.36 · printed as 0.00236 MG/L · 2025 report, page 3 | 2.36 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 1.26 to 1.35 · 2025 report, page 3 | 1.35 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 4.24 to 10.1 · 2025 report, page 3 | 10.1 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 in this report is above a health goal or legal limit. If you’re bothered by taste, smell, hardness or spots, or your home has older pipes, the filter catalog and buyer questions can help you pick, and a test of your own tap shows what your plumbing adds.
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