We read 18 results from Village of Preston Water Dept’s 2025 water quality report. No results over a legal limit or above a health goal.
Serves about 225 people · Water system ID MO5024250 · 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 |
|---|---|---|---|---|
| Aluminumhighest measured · range 0.02 to 0.02 · 2025 report, page 2 | 0.02 ppm | — | 0.2 ppm guideline | Within the guideline |
| Bariumhighest measured · range 0.06 to 0.06 · 2025 report, page 2 | 0.06 ppm | 2 ppm | 2 ppm | Below the health goal |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.02 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Fluoridehighest measured · range 0.22 to 0.22 · 2025 report, page 2 | 0.22 ppm | 1 ppm | 4 ppm | Below the health goal |
| Ironhighest measured · range 0.13 to 0.13 · 2025 report, page 2 | 0.13 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 0.0026 to 0.0026 · 2025 report, page 2 | 0.0026 ppm | — | 0.05 ppm guideline | Within the guideline |
| pHhighest measured · range 7.77 to 7.77 · 2025 report, page 2 | 7.77 | — | — | Normal range |
| Sulfatehighest measured · range 11.3 to 11.3 · 2025 report, page 2 | 11.3 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 256 to 256 · 2025 report, page 2 | 256 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.08 to 0.08 · 2025 report, page 2 | 0.08 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 249 to 249 · 2025 report, page 2 | 249 ppm | None set | None | No health limit |
| Calciumhighest measured · range 55.9 to 55.9 · 2025 report, page 2 | 55.9 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 15 to 15 · 2025 report, page 2 | 15 gpg (257 ppm) | — | — | Very hard |
| Magnesiumhighest measured · range 28.6 to 28.6 · 2025 report, page 2 | 28.6 ppm | None set | None | No health limit |
| Nickelhighest measured · range 1.19 to 1.19 · printed as 0.00119 MG/L · 2025 report, page 2 | 1.19 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 2.52 to 2.52 · 2025 report, page 2 | 2.52 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 3.39 to 3.39 · 2025 report, page 2 | 3.39 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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