We read 21 results from Cass County Pwsd 4’s 2025 water quality report. No results over a legal limit; 2 above a health goal or guideline.
Serves about 1,840 people · Water system ID MO1024116 · 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 |
|---|---|---|---|---|
| Arsenichighest measured · range 1.09 to 1.09 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 2 | 1.09 ppb | 0.004 ppb | 10 ppb | Above the health goal273x the health goal |
| Lead90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 4.45 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal22x the health goal |
| Bariumhighest measured · range 0.07 to 0.07 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 2 | 0.07 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 21.1 to 21.1 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 21.1 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.11 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 5.91 to 5.91 · DBPDUAL-01, highest of 2 sources · 2025 report, page 2 | 6 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 7.1 to 7.1 · DBPDUAL-01, highest of 2 sources · 2025 report, page 2 | 7 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · range 0.14 to 0.14 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 2 | 0.14 ppm | 1 ppm | 4 ppm | Below the health goal |
| Ironhighest measured · range 0.01 to 0.01 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 0.01 ppm | — | 0.3 ppm guideline | Within the guideline |
| Manganesehighest measured · range 0.007 to 0.007 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 0.007 ppm | — | 0.05 ppm guideline | Within the guideline |
| Nitrate (as N)highest measured · range 0.23 to 0.23 · Purchased water (wholesaler) · 2025 report, page 2 | 0.23 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHhighest measured · range 7.86 to 7.86 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 7.86 | — | — | Normal range |
| Sulfatehighest measured · range 73.5 to 73.5 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 73.5 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 252 to 252 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 252 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.0048 to 0.0048 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 0.0048 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 116 to 116 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 116 ppm | None set | None | No health limit |
| Calciumhighest measured · range 17.7 to 17.7 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 17.7 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 8.25 to 8.25 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 8.25 gpg (141 ppm) | — | — | Hard |
| Magnesiumhighest measured · range 23.4 to 23.4 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 23.4 ppm | None set | None | No health limit |
| Potassiumhighest measured · range 5.79 to 5.79 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 5.79 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 34.2 to 34.2 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 34.2 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.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
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