We read 18 results from Hartville Pws’s 2025 water quality report. No results over a legal limit; 3 above a health goal or guideline.
Serves about 655 people · Water system ID MO5010351 · 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 3.5 to 4.6 · sampled 2023 · 2025 report, page 2 | 4.6 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Radium (combined 226 + 228)highest measured · range 1.7 to 4.1 · sampled 2023 · 2025 report, page 2 | 4.1 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Radium-226highest measured · range 1.7 to 4.1 · sampled 2023 · 2025 report, page 2 | 4.1 pCi/L | 0.05 pCi/L | 5 pCi/L | Above the health goal82x the health goal |
| Bariumhighest measured · range 0.15 to 0.26 · 2025 report, page 2 | 0.26 ppm | 2 ppm | 2 ppm | Below the health goal |
| Copper90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | 0.02 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Ironhighest measured · range ND to 0.05 · 2025 report, page 3 | 0.05 ppm | — | 0.3 ppm guideline | Within the guideline |
| Lead90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Nitrate (as N)highest measured · range ND to 0.09 · 2025 report, page 2 | 0.09 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHhighest measured · range 8.22 to 8.27 · 2025 report, page 3 | 8.27 | — | — | Normal range |
| Total dissolved solidshighest measured · range 176 to 212 · 2025 report, page 3 | 212 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.0037 to 0.01 · 2025 report, page 3 | 0.01 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 172 to 229 · 2025 report, page 3 | 229 ppm | None set | None | No health limit |
| Calciumhighest measured · range 37 to 46 · 2025 report, page 3 | 46 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 10.2 to 12.9 · 2025 report, page 3 | 12.9 gpg (221 ppm) | — | — | Very hard |
| Magnesiumhighest measured · range 19.8 to 25.8 · 2025 report, page 3 | 25.8 ppm | None set | None | No health limit |
| Nickelhighest measured · range 1.32 to 1.58 · printed as 0.00158 MG/L · 2025 report, page 3 | 1.58 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 1.39 to 1.47 · 2025 report, page 3 | 1.47 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 1.24 to 1.76 · 2025 report, page 3 | 1.76 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.
Radium and uranium
Found: Gross alpha (radioactivity), Radium (combined 226 + 228), Radium-226
What removes it: Reverse osmosis.
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