We read 20 results from Coffey Pws’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 166 people · Water system ID MO1010179 · 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 |
|---|---|---|---|---|
| Total dissolved solidshighest measured · range 574 to 574 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 574 ppm | — | 500 ppm guideline | Above the guideline1.1x the guideline (taste, odor or stains; not a health limit) |
| Bariumhighest measured · range 0.1 to 0.1 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 2 | 0.1 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 45.2 to 45.2 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 45.2 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 | 0.09 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 24.1 to 41.6 · DBPDUAL-02, highest of 3 sources · 2025 report, page 2 | 34 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 38.7 to 90.2 · Purchased water: Distribution system, highest of 3 sources · 2025 report, page 3 | 72 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · range 0.43 to 0.43 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 2 | 0.43 ppm | 1 ppm | 4 ppm | Below the health goal |
| Ironhighest measured · range 0.01 to 0.01 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 0.01 ppm | — | 0.3 ppm guideline | Within the guideline |
| 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 0.26 to 0.26 · Purchased water (wholesaler) · 2025 report, page 2 | 0.26 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHhighest measured · range 8.04 to 8.04 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 8.04 | — | — | Normal range |
| Sulfatehighest measured · range 88.4 to 88.4 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 88.4 ppm | — | 250 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.001 to 0.001 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 0.001 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 359 to 359 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 359 ppm | None set | None | No health limit |
| Calciumhighest measured · range 56.9 to 56.9 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 56.9 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 12.6 to 12.6 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 12.6 gpg (215 ppm) | — | — | Very hard |
| Lithiumhighest measured · range 22 to 28.8 · sampled 2024 · Purchased water (wholesaler) · 2025 report, page 3 | 28.8 ppb | None set | None | No health limit |
| Magnesiumhighest measured · range 17.8 to 17.8 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 17.8 ppm | None set | None | No health limit |
| Potassiumhighest measured · range 3.77 to 3.77 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 3.77 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 134 to 134 · sampled 2023 · Purchased water (wholesaler) · 2025 report, page 3 | 134 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 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.
Salty taste / high TDS
Found: Total dissolved solids
What removes it: Reverse osmosis.
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