We read 24 results from Desoto Pws’s 2025 water quality report. No results over a legal limit; 6 above a health goal or guideline.
Serves about 6,400 people · Water system ID MO6010213 · 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 |
|---|---|---|---|---|
| Cadmiumhighest measured · range 2.02 to 3.25 · 2025 report, page 2 | 3.25 ppb | 0.04 ppb | 5 ppb | Above the health goal81x the health goal |
| Gross alpha (radioactivity)highest measured · range ND to 3.3 · sampled 2022 · 2025 report, page 2 | 3.3 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Lead90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 1.46 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal7.3x the health goal |
| Radium (combined 226 + 228)highest measured · range 1.1 to 2.5 · sampled 2022 · 2025 report, page 2 | 2.5 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Radium-226highest measured · range 1.1 to 1.4 · sampled 2022 · 2025 report, page 2 | 1.4 pCi/L | 0.05 pCi/L | 5 pCi/L | Above the health goal28x the health goal |
| Radium-228highest measured · range ND to 1.1 · sampled 2022 · 2025 report, page 2 | 1.1 pCi/L | 0.02 pCi/L | 5 pCi/L | Above the health goal58x the health goal |
| Bariumhighest measured · range 0.13 to 0.14 · 2025 report, page 2 | 0.14 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 5.79 to 9.32 · 2025 report, page 3 | 9.32 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.12 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (TTHM)highest running annual average · range 2.01 to 2.01 · DBPDUAL-01 · 2025 report, page 2 | 2 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · range 0.1 to 0.13 · 2025 report, page 2 | 0.13 ppm | 1 ppm | 4 ppm | Below the health goal |
| Ironhighest measured · range 0.0088 to 0.04 · 2025 report, page 3 | 0.04 ppm | — | 0.3 ppm guideline | Within the guideline |
| Manganesehighest measured · range 0.0012 to 0.0015 · 2025 report, page 3 | 0.0015 ppm | — | 0.05 ppm guideline | Within the guideline |
| pHhighest measured · range 7.49 to 8.28 · 2025 report, page 3 | 8.28 | — | — | Normal range |
| Sulfatehighest measured · range 37.6 to 43.2 · 2025 report, page 3 | 43.2 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 328 to 368 · 2025 report, page 3 | 368 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.53 to 0.87 · 2025 report, page 3 | 0.87 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 382 to 421 · 2025 report, page 3 | 421 ppm | None set | None | No health limit |
| Calciumhighest measured · range 69.9 to 75.5 · 2025 report, page 3 | 75.5 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 19.4 to 21.3 · 2025 report, page 3 | 21.3 gpg (364 ppm) | — | — | Very hard |
| Magnesiumhighest measured · range 38.1 to 42.6 · 2025 report, page 3 | 42.6 ppm | None set | None | No health limit |
| Nickelhighest measured · range 2.9 to 3.84 · printed as 0.00384 MG/L · 2025 report, page 3 | 3.84 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 1.09 to 1.88 · 2025 report, page 3 | 1.88 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 5.6 to 6.46 · 2025 report, page 3 | 6.46 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 here is an emergency notice: if the district has a violation, it must tell customers directly. If you’d like to lower these at your tap, these are the treatments that remove them, and the catalog shows the models certified for each. Ranking is by certified removal; commissions never change the order.
Radium and uranium
Found: Gross alpha (radioactivity), Radium (combined 226 + 228), Radium-226, Radium-228
What removes it: Reverse osmosis.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
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