We read 18 results from Chamois Pws’s 2025 water quality report. No results over a legal limit; 6 above a health goal or guideline.
Serves about 396 people · Water system ID MO3010155 · 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 |
|---|---|---|---|---|
| Chloridehighest measured · range ND to 310 · sampled 2024 · 2025 report, page 3 | 310 ppm | — | 250 ppm guideline | Above the guideline1.2x the guideline (taste, odor or stains; not a health limit) |
| Gross alpha (radioactivity)highest measured · range 3.1 to 4.8 · highest of 2 sources · 2025 report, page 2 | 4.8 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 | 6.5 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal33x the health goal |
| Radium (combined 226 + 228)highest measured · range ND to 1.2 · 2025 report, page 2 | 1.2 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Radium-226highest measured · range ND to 1.2 · 2025 report, page 2 | 1.2 pCi/L | 0.05 pCi/L | 5 pCi/L | Above the health goal24x the health goal |
| Total dissolved solidshighest measured · range 983 to 983 · sampled 2024 · 2025 report, page 3 | 983 ppm | — | 500 ppm guideline | Above the guideline2x the guideline (taste, odor or stains; not a health limit) |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.1 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (TTHM)highest running annual average · range 4.13 to 4.13 · DBPDUAL-01 · 2025 report, page 2 | 4 ppb | None set | 80 ppb | Below the legal limit |
| Ironhighest measured · range 0.16 to 0.16 · sampled 2024 · 2025 report, page 3 | 0.16 ppm | — | 0.3 ppm guideline | Within the guideline |
| pHhighest measured · range 8.36 to 8.36 · sampled 2024 · 2025 report, page 3 | 8.36 | — | — | Normal range |
| Sulfatehighest measured · range 7.12 to 7.12 · sampled 2024 · 2025 report, page 3 | 7.12 ppm | — | 250 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.02 to 0.02 · sampled 2024 · 2025 report, page 3 | 0.02 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 396 to 396 · sampled 2024 · 2025 report, page 3 | 396 ppm | None set | None | No health limit |
| Calciumhighest measured · range 60.4 to 60.4 · sampled 2024 · 2025 report, page 3 | 60.4 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 17.3 to 17.3 · sampled 2024 · 2025 report, page 3 | 17.3 gpg (295 ppm) | — | — | Very hard |
| Magnesiumhighest measured · range 35 to 35 · sampled 2024 · 2025 report, page 3 | 35 ppm | None set | None | No health limit |
| Potassiumhighest measured · range 2.78 to 2.78 · sampled 2024 · 2025 report, page 3 | 2.78 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 252 to 252 · sampled 2024 · 2025 report, page 3 | 252 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. 4 numbers we weren’t sure about are 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.
Salty taste / high TDS
Found: Chloride, Total dissolved solids
What removes it: Reverse osmosis.
Radium and uranium
Found: Gross alpha (radioactivity), Radium (combined 226 + 228), Radium-226
What removes it: Reverse osmosis.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
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