We read 23 results from Ava Pws’s 2025 water quality report. No results over a legal limit; 6 above a health goal or guideline.
Serves about 3,000 people · Water system ID MO5010040 · 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 7.5 to 7.5 · highest of 2 sources · 2025 report, page 2 | 7.5 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Lead90th percentile of homes tested, 1 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | 4.55 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal23x the health goal |
| Radium (combined 226 + 228)highest measured · range 4.2 to 4.2 · 2025 report, page 2 | 4.2 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Radium-226highest measured · range 2.7 to 2.7 · 2025 report, page 2 | 2.7 pCi/L | 0.05 pCi/L | 5 pCi/L | Above the health goal54x the health goal |
| Radium-228highest measured · range 1.5 to 1.5 · 2025 report, page 2 | 1.5 pCi/L | 0.02 pCi/L | 5 pCi/L | Above the health goal79x the health goal |
| Uraniumhighest measured · range 0.73 to 0.73 · sampled 2021 · 2025 report, page 2 | 0.73 ppb | 0.6 ppb | 30 ppb | Above the health goal1.2x the health goal |
| Bariumhighest measured · range 0.04 to 0.05 · 2025 report, page 2 | 0.05 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 6.64 to 16 · 2025 report, page 3 | 16 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | 0.07 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Ironhighest measured · range ND to 0.02 · 2025 report, page 3 | 0.02 ppm | — | 0.3 ppm guideline | Within the guideline |
| Manganesehighest measured · range ND to 0.0012 · 2025 report, page 3 | 0.0012 ppm | — | 0.05 ppm guideline | Within the guideline |
| Nitrate (as N)highest measured · range 0.02 to 0.76 · 2025 report, page 2 | 0.76 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHhighest measured · range 7.52 to 7.62 · 2025 report, page 3 | 7.62 | — | — | Normal range |
| Sulfatehighest measured · range 20 to 22.5 · 2025 report, page 3 | 22.5 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 260 to 320 · 2025 report, page 3 | 320 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.0089 to 0.03 · 2025 report, page 3 | 0.03 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 237 to 244 · 2025 report, page 3 | 244 ppm | None set | None | No health limit |
| Calciumhighest measured · range 57.5 to 60.1 · 2025 report, page 3 | 60.1 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 15.5 to 16.7 · 2025 report, page 3 | 16.7 gpg (286 ppm) | — | — | Very hard |
| Magnesiumhighest measured · range 29.6 to 33 · 2025 report, page 3 | 33 ppm | None set | None | No health limit |
| Nickelhighest measured · range 2.68 to 3.82 · printed as 0.00382 MG/L · 2025 report, page 3 | 3.82 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 1.95 to 2.72 · 2025 report, page 3 | 2.72 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 3.2 to 5.17 · 2025 report, page 3 | 5.17 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, Radium-228, Uranium
What removes it: Reverse osmosis.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
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