We read 22 results from Cass County Pwsd 7’s 2025 water quality report. No results over a legal limit; 3 above a health goal or guideline.
Serves about 4,143 people · Water system ID MO1024111 · 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 |
|---|---|---|---|---|
| Atrazinehighest measured · range ND to 0.5 · 2025 report, page 2 | 0.5 ppb | 0.15 ppb | 3 ppb | Above the health goal3.3x the health goal |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.77 ppm | 0.3 ppm | 1.3 ppm (action level) | Above the health goal2.6x the health goal |
| Lead90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 2.89 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal14x the health goal |
| Aluminumhighest measured · range 0.05 to 0.05 · 2025 report, page 3 | 0.05 ppm | — | 0.2 ppm guideline | Within the guideline |
| Bariumhighest measured · range 0.11 to 0.11 · 2025 report, page 2 | 0.11 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 45.7 to 45.7 · 2025 report, page 3 | 45.7 ppm | — | 250 ppm guideline | Within the guideline |
| Disinfection byproducts (HAA5)highest running annual average · range 26.1 to 36.3 · 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 37.8 to 54.3 · DBPDUAL-01, highest of 2 sources · 2025 report, page 2 | 57 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · range 0.18 to 0.18 · 2025 report, page 2 | 0.18 ppm | 1 ppm | 4 ppm | Below the health goal |
| Manganesehighest measured · range 0.0071 to 0.0071 · 2025 report, page 3 | 0.0071 ppm | — | 0.05 ppm guideline | Within the guideline |
| Nitrate (as N)highest measured · range 0.09 to 0.09 · 2025 report, page 2 | 0.09 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHhighest measured · range 8.04 to 8.04 · 2025 report, page 3 | 8.04 | — | — | Normal range |
| Sulfatehighest measured · range 139 to 139 · 2025 report, page 3 | 139 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 424 to 424 · 2025 report, page 3 | 424 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.0051 to 0.0051 · 2025 report, page 3 | 0.0051 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 170 to 170 · highest of 2 sources · 2025 report, page 3 | 170 ppm | None set | None | No health limit |
| Calciumhighest measured · range 63.5 to 63.5 · 2025 report, page 3 | 63.5 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 12.1 to 12.1 · 2025 report, page 3 | 12.1 gpg (206 ppm) | — | — | Very hard |
| Magnesiumhighest measured · range 11.5 to 11.5 · 2025 report, page 3 | 11.5 ppm | None set | None | No health limit |
| Nickelhighest measured · range 3.22 to 3.22 · printed as 0.00322 MG/L · 2025 report, page 3 | 3.22 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 4.85 to 4.85 · 2025 report, page 3 | 4.85 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 62.3 to 62.3 · 2025 report, page 3 | 62.3 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. 1 number we weren’t sure about is held back until a person checks.
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.
Industrial chemicals and pesticides
Found: Atrazine
What removes it: Carbon block or RO.
Lead
Found: Copper, Lead
What removes it: Reverse osmosis or Certified carbon block or RO.
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