We read 16 results from Fredericktown Pws’s 2025 water quality report. No results over a legal limit or above a health goal.
Serves about 4,429 people · Water system ID MO4010290 · 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 0.04 to 0.04 · 2025 report, page 2 | 0.04 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 28 to 28 · 2025 report, page 3 | 28 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.03 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 14.6 to 66.6 · DBPDUAL-02, highest of 2 sources · 2025 report, page 2 | 39 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 18.2 to 92.8 · DBPDUAL-02, highest of 2 sources · 2025 report, page 2 | 56 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · range 0.55 to 0.55 · 2025 report, page 2 | 0.55 ppm | 1 ppm | 4 ppm | Below the health goal |
| 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 |
| Nitrate (as N)highest measured · range 0.73 to 0.73 · 2025 report, page 2 | 0.73 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHhighest measured · range 8 to 8 · 2025 report, page 3 | 8 | — | — | Normal range |
| Total dissolved solidshighest measured · range 152 to 152 · 2025 report, page 3 | 152 ppm | — | 500 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 171 to 171 · highest of 2 sources · 2025 report, page 3 | 171 ppm | None set | None | No health limit |
| Calciumhighest measured · range 19.5 to 19.5 · 2025 report, page 3 | 19.5 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 5.64 to 5.64 · 2025 report, page 3 | 5.64 gpg (96.5 ppm) | — | — | Moderately hard |
| Magnesiumhighest measured · range 11.6 to 11.6 · 2025 report, page 3 | 11.6 ppm | None set | None | No health limit |
| Potassiumhighest measured · range 1.68 to 1.68 · 2025 report, page 3 | 1.68 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 17.1 to 17.1 · 2025 report, page 3 | 17.1 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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