We read 19 results from Dunklin County Pwsd 1’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 4,365 people · Water system ID MO4024206 · 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, 0 over the action level · Customer taps · 2025 report, page 2 | 1.66 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal8.3x the health goal |
| Bariumhighest measured · range 0.02 to 0.02 · sampled 2024 · 2025 report, page 2 | 0.02 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 82.8 to 94.5 · sampled 2024 · 2025 report, page 3 | 94.5 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.08 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Fluoridehighest measured · range 0.36 to 0.41 · sampled 2024 · 2025 report, page 2 | 0.41 ppm | 1 ppm | 4 ppm | Below the health goal |
| Ironhighest measured · range 0.04 to 0.06 · sampled 2024 · 2025 report, page 3 | 0.06 ppm | — | 0.3 ppm guideline | Within the guideline |
| Manganesehighest measured · range 0.0027 to 0.0031 · sampled 2024 · 2025 report, page 3 | 0.0031 ppm | — | 0.05 ppm guideline | Within the guideline |
| Nitrate (as N)highest measured · range ND to 0.02 · 2025 report, page 2 | 0.02 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHhighest measured · range 8.3 to 8.37 · sampled 2024 · 2025 report, page 3 | 8.37 | — | — | Normal range |
| Sulfatehighest measured · range 7.15 to 9.22 · sampled 2024 · 2025 report, page 3 | 9.22 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 403 to 426 · sampled 2024 · 2025 report, page 3 | 426 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.02 to 0.07 · sampled 2024 · 2025 report, page 3 | 0.07 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 232 to 232 · sampled 2024 · 2025 report, page 3 | 232 ppm | None set | None | No health limit |
| Calciumhighest measured · range 9.44 to 10.7 · sampled 2024 · 2025 report, page 3 | 10.7 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 2.02 to 2.31 · sampled 2024 · 2025 report, page 3 | 2.31 gpg (39.5 ppm) | — | — | Soft |
| Lithiumhighest measured · range 51.5 to 56.2 · highest of 2 sources · 2025 report, page 3 | 56.2 ppb | None set | None | No health limit |
| Magnesiumhighest measured · range 2.64 to 3.09 · sampled 2024 · 2025 report, page 3 | 3.09 ppm | None set | None | No health limit |
| Potassiumhighest measured · range 3.9 to 4.13 · sampled 2024 · 2025 report, page 3 | 4.13 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 137 to 142 · sampled 2024 · 2025 report, page 3 | 142 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.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Dunklin County Pwsd 1’s water between Mar 2025 and Sep 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium56.2 ppbFound in 4 of 4 samples · highest resultAbove EPA’s health reference level of 10 ppb (a guide, not a legal limit)
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.
More districts: Missouri water quality · All states · Something look wrong? Tell us