We read 18 results from Independence Pws’s 2025 water quality report. No results over a legal limit; 2 above a health goal or guideline.
Serves about 120,000 people · Water system ID MO1010399 · 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 |
|---|---|---|---|---|
| Lead90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 1.1 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal5.5x the health goal |
| pHhighest measured · range 9.65 to 9.65 · sampled 2024 · 2025 report, page 3 | 9.65 | — | — | Outside the normal rangeAlkaline water can leave scale |
| Bariumhighest measured · range 0.04 to 0.04 · sampled 2024 · 2025 report, page 2 | 0.04 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 30 to 30 · sampled 2024 · 2025 report, page 3 | 30 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.0068 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 3.16 to 5.81 · DBPDUAL-03, highest of 2 sources · 2025 report, page 2 | 5 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 1.39 to 6.08 · DBPDUAL-04, highest of 2 sources · 2025 report, page 2 | 4 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · range 0.23 to 0.23 · sampled 2024 · 2025 report, page 2 | 0.23 ppm | 1 ppm | 4 ppm | Below the health goal |
| Nitrate (as N)highest measured · range 0.29 to 0.29 · 2025 report, page 2 | 0.29 ppm | 10 ppm | 10 ppm | Below the health goal |
| Sulfatehighest measured · range 144 to 144 · sampled 2024 · 2025 report, page 3 | 144 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 322 to 322 · sampled 2024 · 2025 report, page 3 | 322 ppm | — | 500 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 60.2 to 60.2 · sampled 2024 · 2025 report, page 3 | 60.2 ppm | None set | None | No health limit |
| Calciumhighest measured · range 16.4 to 16.4 · sampled 2024 · 2025 report, page 3 | 16.4 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 7.19 to 7.19 · sampled 2024 · 2025 report, page 3 | 7.19 gpg (123 ppm) | — | — | Hard |
| Lithiumhighest measured · range 37.2 to 40.1 · sampled 2024 · highest of 2 sources · 2025 report, page 3 | 40.1 ppb | None set | None | No health limit |
| Magnesiumhighest measured · range 19.9 to 19.9 · sampled 2024 · 2025 report, page 3 | 19.9 ppm | None set | None | No health limit |
| Potassiumhighest measured · range 6 to 6 · sampled 2024 · 2025 report, page 3 | 6 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 50 to 50 · sampled 2024 · 2025 report, page 3 | 50 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.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Independence Pws’s water between Apr 2024 and Oct 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium40.1 ppbFound in 2 of 2 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.
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