We read 26 results from Jackson Pws’s 2025 water quality report. No results over a legal limit; 8 above a health goal or guideline.
Serves about 15,000 people · Water system ID MO4010404 · 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 |
|---|---|---|---|---|
| Arsenichighest measured · range ND to 1.15 · 2025 report, page 2 | 1.15 ppb | 0.004 ppb | 10 ppb | Above the health goal288x the health goal |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.71 ppm | 0.3 ppm | 1.3 ppm (action level) | Above the health goal2.4x the health goal |
| Fluoridehighest measured · range 2.03 to 2.15 · 2025 report, page 2 | 2.15 ppm | 1 ppm | 4 ppm | Above the 2 ppm secondary standard1.1x the 2 ppm secondary standard (EPA's level to prevent tooth discoloration, also used as health guidance); below the 4 ppm legal limit |
| Gross alpha (radioactivity)highest measured · range 5.7 to 5.7 · sampled 2024 · 2025 report, page 2 | 5.7 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Ironhighest measured · range 0.09 to 0.33 · 2025 report, page 3 | 0.33 ppm | — | 0.3 ppm guideline | Above the guideline1.1x the guideline (taste, odor or stains; not a health limit) |
| Lead90th percentile of homes tested, 1 over the action level · Customer taps · 2025 report, page 2 | 1.03 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal5.1x the health goal |
| Radium (combined 226 + 228)highest measured · range 3 to 3 · sampled 2024 · 2025 report, page 2 | 3 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Radium-226highest measured · range 3 to 3 · sampled 2024 · 2025 report, page 2 | 3 pCi/L | 0.05 pCi/L | 5 pCi/L | Above the health goal60x the health goal |
| Bariumhighest measured · range 0.1 to 0.1 · 2025 report, page 2 | 0.1 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 105 to 113 · 2025 report, page 3 | 113 ppm | — | 250 ppm guideline | Within the guideline |
| Disinfection byproducts (HAA5)highest running annual average · range 1.28 to 1.28 · DBPDUAL-01 · 2025 report, page 2 | 1 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 11.2 to 11.2 · DBPDUAL-01 · 2025 report, page 2 | 11 ppb | None set | 80 ppb | Below the legal limit |
| Manganesehighest measured · range 0.0047 to 0.01 · 2025 report, page 3 | 0.01 ppm | — | 0.05 ppm guideline | Within the guideline |
| Nitrate (as N)highest measured · range 0.04 to 0.19 · 2025 report, page 2 | 0.19 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHhighest measured · range 7.45 to 8.19 · 2025 report, page 3 | 8.19 | — | — | Normal range |
| Sulfatehighest measured · range ND to 30.9 · 2025 report, page 3 | 30.9 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 464 to 484 · 2025 report, page 3 | 484 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.0075 to 0.02 · 2025 report, page 3 | 0.02 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 343 to 353 · 2025 report, page 3 | 353 ppm | None set | None | No health limit |
| Calciumhighest measured · range 76.8 to 81.1 · 2025 report, page 3 | 81.1 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 19.3 to 20.8 · 2025 report, page 3 | 20.8 gpg (355 ppm) | — | — | Very hard |
| Lithiumhighest measured · range ND to 16.2 · highest of 2 sources · 2025 report, page 3 | 16.2 ppb | None set | None | No health limit |
| Magnesiumhighest measured · range 33.6 to 37 · 2025 report, page 3 | 37 ppm | None set | None | No health limit |
| Nickelhighest measured · range 1.68 to 2.48 · printed as 0.00248 MG/L · 2025 report, page 3 | 2.48 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 4.94 to 5.21 · 2025 report, page 3 | 5.21 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 29.8 to 31.7 · 2025 report, page 3 | 31.7 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 Jackson Pws’s water between Jun 2024 and Jan 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium19.5 ppbFound in 2 of 6 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: Copper, Lead
What removes it: Reverse osmosis or Certified carbon block or RO.
Fluoride
Found: Fluoride
What removes it: Reverse osmosis.
Radium and uranium
Found: Gross alpha (radioactivity), Radium (combined 226 + 228), Radium-226
What removes it: Reverse osmosis.
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