We read 17 results from Caledonia Pws’s 2025 water quality report. No results over a legal limit or above a health goal.
Serves about 130 people · Water system ID MO4010003 · 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 0.01 to 0.01 · sampled 2024 · 2025 report, page 2 | 0.01 ppm | 2 ppm | 2 ppm | Below the health goal |
| Copper90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | 0.13 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 5.82 to 5.82 · DBPDUAL-01 · 2025 report, page 2 | 6 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 21.3 to 21.3 · DBPDUAL-01 · 2025 report, page 2 | 21 ppb | None set | 80 ppb | Below the legal limit |
| Ironhighest measured · range 0.01 to 0.01 · sampled 2024 · 2025 report, page 3 | 0.01 ppm | — | 0.3 ppm guideline | Within the guideline |
| Lead90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Nitrate (as N)highest measured · range 0.79 to 0.79 · 2025 report, page 2 | 0.79 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHhighest measured · range 8.05 to 8.05 · sampled 2024 · 2025 report, page 3 | 8.05 | — | — | Normal range |
| Sulfatehighest measured · range 8.89 to 8.89 · sampled 2024 · 2025 report, page 3 | 8.89 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 281 to 281 · sampled 2024 · 2025 report, page 3 | 281 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.0074 to 0.0074 · sampled 2024 · 2025 report, page 3 | 0.0074 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 267 to 267 · sampled 2024 · 2025 report, page 3 | 267 ppm | None set | None | No health limit |
| Calciumhighest measured · range 55 to 55 · sampled 2024 · 2025 report, page 3 | 55 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 16.3 to 16.3 · sampled 2024 · 2025 report, page 3 | 16.3 gpg (278 ppm) | — | — | Very hard |
| Magnesiumhighest measured · range 34.2 to 34.2 · sampled 2024 · 2025 report, page 3 | 34.2 ppm | None set | None | No health limit |
| Nickelhighest measured · range 1.39 to 1.39 · printed as 0.00139 MG/L · sampled 2024 · 2025 report, page 3 | 1.39 ppb | None set | None | No health limit |
| Sodiumhighest measured · range 4.38 to 4.38 · sampled 2024 · 2025 report, page 3 | 4.38 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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