We read 15 results from Walnut Grove Pws’s 2025 water quality report. No results over a legal limit or above a health goal.
Serves about 665 people · Water system ID MO5010829 · 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 0.03 to 0.03 · 2025 report, page 2 | 0.03 ppm | 2 ppm | 2 ppm | Below the health goal |
| Copper90th percentile of homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 2 | 0.01 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Fluoridehighest measured · range 0.11 to 0.12 · 2025 report, page 2 | 0.12 ppm | 1 ppm | 4 ppm | Below the health goal |
| Ironhighest measured · range 0.0053 to 0.04 · 2025 report, page 3 | 0.04 ppm | — | 0.3 ppm guideline | Within the guideline |
| Lead90th percentile of homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 2 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| pHhighest measured · range 7.99 to 8.12 · 2025 report, page 3 | 8.12 | — | — | Normal range |
| Sulfatehighest measured · range 12.9 to 13.3 · 2025 report, page 3 | 13.3 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 160 to 168 · 2025 report, page 3 | 168 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.0046 to 0.02 · 2025 report, page 3 | 0.02 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 151 to 156 · 2025 report, page 3 | 156 ppm | None set | None | No health limit |
| Calciumhighest measured · range 37.8 to 40 · 2025 report, page 3 | 40 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 10.1 to 10.5 · 2025 report, page 3 | 10.5 gpg (180 ppm) | — | — | Very hard |
| Magnesiumhighest measured · range 19.2 to 19.5 · 2025 report, page 3 | 19.5 ppm | None set | None | No health limit |
| Potassiumhighest measured · range 1.29 to 1.35 · 2025 report, page 3 | 1.35 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 2.75 to 2.82 · 2025 report, page 3 | 2.82 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. 1 number we weren’t sure about is held back until a person checks.
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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