We read 19 results from Clarksville Pws’s 2025 water quality report. No results over a legal limit; 5 above a health goal or guideline.
Serves about 442 people · Water system ID MO2010169 · 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 |
|---|---|---|---|---|
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.32 ppm | 0.3 ppm | 1.3 ppm (action level) | Above the health goal1.1x the health goal |
| Fluoridehighest measured · range 1.03 to 1.03 · sampled 2023 · 2025 report, page 2 | 1.03 ppm | 1 ppm | 4 ppm | Above the health goal1x the health goal |
| Lead90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 5.9 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal30x the health goal |
| PFOA (a PFAS)highest measured · range 0.62 to 0.62 · sampled 2024 · 2025 report, page 3 | 0.62 ppt | 0.007 ppt | 4 ppt from 2029 | Above the health goal89x the health goal |
| Total dissolved solidshighest measured · range 726 to 726 · sampled 2023 · 2025 report, page 3 | 726 ppm | — | 500 ppm guideline | Above the guideline1.5x the guideline (taste, odor or stains; not a health limit) |
| Bariumhighest measured · range 0.02 to 0.02 · sampled 2023 · 2025 report, page 2 | 0.02 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 164 to 164 · sampled 2023 · 2025 report, page 3 | 164 ppm | — | 250 ppm guideline | Within the guideline |
| Ironhighest measured · range 0.06 to 0.06 · sampled 2023 · 2025 report, page 3 | 0.06 ppm | — | 0.3 ppm guideline | Within the guideline |
| Manganesehighest measured · range 0.0018 to 0.0018 · sampled 2023 · 2025 report, page 3 | 0.0018 ppm | — | 0.05 ppm guideline | Within the guideline |
| pHhighest measured · range 7.86 to 7.86 · sampled 2023 · 2025 report, page 3 | 7.86 | — | — | Normal range |
| Sulfatehighest measured · range 91.6 to 91.6 · sampled 2023 · 2025 report, page 3 | 91.6 ppm | — | 250 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.05 to 0.05 · sampled 2023 · 2025 report, page 3 | 0.05 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 399 to 399 · sampled 2023 · 2025 report, page 3 | 399 ppm | None set | None | No health limit |
| Calciumhighest measured · range 44.4 to 44.4 · sampled 2023 · 2025 report, page 3 | 44.4 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 11.6 to 11.6 · sampled 2023 · 2025 report, page 3 | 11.6 gpg (199 ppm) | — | — | Very hard |
| Magnesiumhighest measured · range 21.4 to 21.4 · sampled 2023 · 2025 report, page 3 | 21.4 ppm | None set | None | No health limit |
| Nickelhighest measured · range 1.97 to 1.97 · printed as 0.00197 MG/L · sampled 2023 · 2025 report, page 3 | 1.97 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 6.15 to 6.15 · sampled 2023 · 2025 report, page 3 | 6.15 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 187 to 187 · sampled 2023 · 2025 report, page 3 | 187 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. 6 numbers we weren’t sure about are 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.
Lead
Found: Copper, Lead
What removes it: Reverse osmosis or Certified carbon block or RO.
Fluoride
Found: Fluoride
What removes it: Reverse osmosis.
PFAS ("forever chemicals")
Found: PFOA (a PFAS)
What removes it: Reverse osmosis.
Salty taste / high TDS
Found: Total dissolved solids
What removes it: Reverse osmosis.
More districts: Missouri water quality · All states · Something look wrong? Tell us