We read 18 results from Lanagan Pws’s 2025 water quality report. No results over a legal limit; 4 above a health goal or guideline.
Serves about 417 people · Water system ID MO5010449 · 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 |
|---|---|---|---|---|
| Gross alpha (radioactivity)highest measured · range 7 to 12.5 · highest of 2 sources · 2025 report, page 2 | 12.5 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 | 5.75 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal29x the health goal |
| pHhighest measured · range 8.52 to 8.52 · 2025 report, page 3 | 8.52 | — | — | Outside the normal rangeAlkaline water can leave scale |
| Radium-228highest measured · range ND to 1.1 · 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 0.0058 to 0.0058 · 2025 report, page 2 | 0.0058 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 31.1 to 31.1 · 2025 report, page 3 | 31.1 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.26 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Fluoridehighest measured · range 0.69 to 0.69 · 2025 report, page 2 | 0.69 ppm | 1 ppm | 4 ppm | Below the health goal |
| Sulfatehighest measured · range 19.9 to 19.9 · 2025 report, page 3 | 19.9 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 204 to 204 · 2025 report, page 3 | 204 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.0075 to 0.0075 · 2025 report, page 3 | 0.0075 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 339 to 339 · 2025 report, page 3 | 339 ppm | None set | None | No health limit |
| Calciumhighest measured · range 25.9 to 25.9 · 2025 report, page 3 | 25.9 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 6.73 to 6.73 · 2025 report, page 3 | 6.73 gpg (115 ppm) | — | — | Moderately hard |
| Magnesiumhighest measured · range 12.3 to 12.3 · 2025 report, page 3 | 12.3 ppm | None set | None | No health limit |
| Nickelhighest measured · range 1.03 to 1.03 · printed as 0.00103 MG/L · 2025 report, page 3 | 1.03 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 2.52 to 2.52 · 2025 report, page 3 | 2.52 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 34.1 to 34.1 · 2025 report, page 3 | 34.1 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. 2 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.
Radium and uranium
Found: Gross alpha (radioactivity), Radium-228
What removes it: Reverse osmosis.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
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