Jackson County Pwsd 12 water quality

Updated 2026-10-22 · Missouri · Affiliate disclosure

We read 16 results from Jackson County Pwsd 12’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.

Serves about 5,705 people · Water system ID MO1024278 · 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.

ContaminantResultHealth goalLegal limitWhat it means
pHhighest measured · range 9.65 to 9.65 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 39.65——Outside the normal rangeAlkaline water can leave scale
Chloridehighest measured · range 25 to 25 · Purchased water (wholesaler) · 2025 report, page 325 ppm—250 ppm guidelineWithin the guideline
Copper90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 20.02 ppm0.3 ppm1.3 ppm (action level)Below the health goal
Disinfection byproducts (HAA5)highest running annual average · range 24.7 to 24.7 · DBPDUAL-01, highest of 2 sources · 2025 report, page 225 ppbNone set60 ppbBelow the legal limit
Disinfection byproducts (TTHM)highest running annual average · range 15.3 to 15.3 · DBPDUAL-01, highest of 2 sources · 2025 report, page 215 ppbNone set80 ppbBelow the legal limit
Lead90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 2Not detected0.2 ppb15 ppb (action level)Not detected
Sulfatehighest measured · range 178 to 178 · Purchased water (wholesaler) · 2025 report, page 3178 ppm—250 ppm guidelineWithin the guideline
Total dissolved solidshighest measured · range 340 to 340 · Purchased water (wholesaler) · 2025 report, page 3340 ppm—500 ppm guidelineWithin the guideline
Alkalinityhighest measured · range 158 to 216 · Purchased water (wholesaler), highest of 2 sources · 2025 report, page 3216 ppmNone setNoneNo health limit
Calciumhighest measured · range 16.4 to 16.4 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 316.4 ppmNone setNoneNo health limit
Hardnesshighest measured · range 7.19 to 7.19 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 37.19 gpg (123 ppm)——Hard
Lithiumhighest measured · range 26.7 to 58.6 · sampled 2024 · Purchased water (wholesaler), highest of 3 sources · 2025 report, page 358.6 ppbNone setNoneNo health limit
Magnesiumhighest measured · range 19.9 to 19.9 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 319.9 ppmNone setNoneNo health limit
Orthophosphatehighest measured · range 0.12 to 0.12 · Purchased water (wholesaler) · 2025 report, page 30.12 ppmNone setNoneNo health limit
Potassiumhighest measured · range 6 to 6 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 36 ppmNone setNoneNo health limit
Sodiumhighest measured · range 50 to 50 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 350 ppmNone setNoneNo 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. 13 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 Jackson County Pwsd 12’s water between Jan 2024 and Oct 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.

  • Lithium52 ppbFound in 8 of 8 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 in this report is above a health goal or legal limit. If you’re bothered by taste, smell, hardness or spots, or your home has older pipes, the filter catalog and buyer questions can help you pick, and a test of your own tap shows what your plumbing adds.

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