We read 24 results from West Plains Pws’s 2025 water quality report. No results over a legal limit; 5 above a health goal or guideline.
Serves about 12,864 people · Water system ID MO4010853 · Read the district’s 2025 report (opens in a new tab)
Open this district in the water lookupCompare with your own test results, see the district map and get matched filters.
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 |
|---|---|---|---|---|
| Lead90th percentile of homes tested, 1 over the action level · Customer taps · 2025 report, page 2 | 1.12 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal5.6x the health goal |
| PFOA (a PFAS)highest measured · range ND to 1.6 · 2025 report, page 3 | 1.6 ppt | 0.007 ppt | 4 ppt from 2029 | Above the health goal229x the health goal |
| PFOS (a PFAS)highest measured · range ND to 2.3 · 2025 report, page 3 | 2.3 ppt | 1 ppt | 4 ppt from 2029 | Above the health goal2.3x the health goal |
| Radium (combined 226 + 228)highest measured · range 1.1 to 1.1 · sampled 2021 · 2025 report, page 2 | 1.1 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Radium-226highest measured · range 1.1 to 1.1 · sampled 2021 · 2025 report, page 2 | 1.1 pCi/L | 0.05 pCi/L | 5 pCi/L | Above the health goal22x the health goal |
| Aluminumhighest measured · range 0.04 to 0.04 · 2025 report, page 3 | 0.04 ppm | — | 0.2 ppm guideline | Within the guideline |
| Bariumhighest measured · range 0.04 to 0.04 · 2025 report, page 2 | 0.04 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 5.79 to 5.79 · 2025 report, page 3 | 5.79 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.05 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 2.07 to 11.9 · DBPDUAL-02, highest of 2 sources · 2025 report, page 2 | 17 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 8.43 to 23.9 · DBPDUAL-02, highest of 2 sources · 2025 report, page 2 | 32 ppb | None set | 80 ppb | Below the legal limit |
| Nitrate (as N)highest measured · range 1.18 to 1.18 · 2025 report, page 2 | 1.18 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHhighest measured · range 8.15 to 8.15 · 2025 report, page 3 | 8.15 | — | — | Normal range |
| Sulfatehighest measured · range 11.6 to 11.6 · 2025 report, page 3 | 11.6 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 212 to 212 · 2025 report, page 3 | 212 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.0093 to 0.0093 · 2025 report, page 3 | 0.0093 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 363 to 363 · highest of 2 sources · 2025 report, page 3 | 363 ppm | None set | None | No health limit |
| Calciumhighest measured · range 51.8 to 51.8 · 2025 report, page 3 | 51.8 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 15 to 15 · 2025 report, page 3 | 15 gpg (256 ppm) | — | — | Very hard |
| Magnesiumhighest measured · range 30.8 to 30.8 · 2025 report, page 3 | 30.8 ppm | None set | None | No health limit |
| Nickelhighest measured · range 1.43 to 1.43 · printed as 0.00143 MG/L · 2025 report, page 3 | 1.43 ppb | None set | None | No health limit |
| PFBS (a PFAS)highest measured · range ND to 2.5 · 2025 report, page 3 | 2.5 ppt | None set | None | No health limit |
| Potassiumhighest measured · range 2.09 to 2.09 · 2025 report, page 3 | 2.09 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 2.55 to 2.55 · 2025 report, page 3 | 2.55 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. 3 numbers we weren’t sure about are held back until a person checks.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in West Plains Pws’s water between Mar 2024 and Jan 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFBS3.2 pptFound in 1 of 4 samples · highest resultNo federal limit in force for this one
Source: EPA UCMR 5 occurrence data. The highest single result is shown; one high sample doesn’t mean every glass is that high.
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.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
PFAS ("forever chemicals")
Found: PFOA (a PFAS), PFOS (a PFAS)
What removes it: Reverse osmosis.
Radium and uranium
Found: Radium (combined 226 + 228), Radium-226
What removes it: Reverse osmosis.
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