We read 18 results from Lake Tapawingo Pws’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 995 people · Water system ID MO1010980 · 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 |
|---|---|---|---|---|
| pHhighest measured · range 9.65 to 9.65 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 3 | 9.65 | — | — | Outside the normal rangeAlkaline water can leave scale |
| Bariumhighest measured · range 0.04 to 0.04 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 2 | 0.04 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 30 to 30 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 3 | 30 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | 0.0042 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 2.86 to 5.81 · Purchased water: Distribution system, 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 · Purchased water: Distribution system, 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 · Purchased water (wholesaler) · 2025 report, page 2 | 0.23 ppm | 1 ppm | 4 ppm | Below the health goal |
| Lead90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Nitrate (as N)highest measured · range 0.29 to 0.29 · Purchased water (wholesaler) · 2025 report, page 2 | 0.29 ppm | 10 ppm | 10 ppm | Below the health goal |
| Sulfatehighest measured · range 144 to 144 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 3 | 144 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 322 to 322 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 3 | 322 ppm | — | 500 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 60.2 to 60.2 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 3 | 60.2 ppm | None set | None | No health limit |
| Calciumhighest measured · range 16.4 to 16.4 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 3 | 16.4 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 7.19 to 7.19 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 3 | 7.19 gpg (123 ppm) | — | — | Hard |
| Lithiumhighest measured · range 37.2 to 40.1 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 3 | 40.1 ppb | None set | None | No health limit |
| Magnesiumhighest measured · range 19.9 to 19.9 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 3 | 19.9 ppm | None set | None | No health limit |
| Potassiumhighest measured · range 6 to 6 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 3 | 6 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 50 to 50 · sampled 2024 · Purchased water (wholesaler) · 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.
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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