We read 20 results from Mo American Spokane Highlands’s 2025 water quality report. No results over a legal limit; 5 above a health goal or guideline.
Serves about 150 people · Water system ID MO5031093 · 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 6.1 to 6.1 · 2025 report, page 2 | 6.1 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 | 1.9 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal9.5x the health goal |
| Radium (combined 226 + 228)highest measured · range 1.6 to 1.6 · 2025 report, page 2 | 1.6 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Radium-226highest measured · range 1.6 to 1.6 · 2025 report, page 2 | 1.6 pCi/L | 0.05 pCi/L | 5 pCi/L | Above the health goal32x the health goal |
| Total dissolved solidshighest measured · range 600 to 600 · 2025 report, page 2 | 600 ppm | — | 500 ppm guideline | Above the guideline1.2x the guideline (taste, odor or stains; not a health limit) |
| Bariumhighest measured · range 0.03 to 0.03 · 2025 report, page 2 | 0.03 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 6.06 to 6.06 · 2025 report, page 2 | 6.06 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.07 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Ironhighest measured · range 0.02 to 0.02 · 2025 report, page 2 | 0.02 ppm | — | 0.3 ppm guideline | Within the guideline |
| Manganesehighest measured · range 0.005 to 0.005 · 2025 report, page 2 | 0.005 ppm | — | 0.05 ppm guideline | Within the guideline |
| pHhighest measured · range 7.92 to 7.92 · 2025 report, page 2 | 7.92 | — | — | Normal range |
| Sulfatehighest measured · range 247 to 247 · 2025 report, page 2 | 247 ppm | — | 250 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.0029 to 0.0029 · 2025 report, page 2 | 0.0029 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 203 to 203 · 2025 report, page 2 | 203 ppm | None set | None | No health limit |
| Calciumhighest measured · range 109 to 109 · 2025 report, page 2 | 109 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 27 to 27 · 2025 report, page 2 | 27 gpg (461 ppm) | — | — | Very hard |
| Magnesiumhighest measured · range 46.2 to 46.2 · 2025 report, page 2 | 46.2 ppm | None set | None | No health limit |
| Nickelhighest measured · range 3.58 to 3.58 · printed as 0.00358 MG/L · 2025 report, page 2 | 3.58 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 1.84 to 1.84 · 2025 report, page 2 | 1.84 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 1.35 to 1.35 · 2025 report, page 2 | 1.35 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
What removes it: Reverse osmosis.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
Salty taste / high TDS
Found: Total dissolved solids
What removes it: Reverse osmosis.
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