We read 18 results from Monroe City Pws’s 2025 water quality report. No results over a legal limit or above a health goal.
Serves about 2,500 people · Water system ID MO2010538 · 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 |
|---|---|---|---|---|
| Aluminumhighest measured · range 0.06 to 0.06 · 2025 report, page 3 | 0.06 ppm | — | 0.2 ppm guideline | Within the guideline |
| Bariumhighest measured · range 0.03 to 0.03 · 2025 report, page 2 | 0.03 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 22.5 to 22.5 · 2025 report, page 3 | 22.5 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.13 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 37.5 to 67.1 · DBPDUAL-01 · 2025 report, page 2 | 49 ppb | None set | 60 ppb | Below the legal limit |
| Fluoridehighest measured · range 0.45 to 0.45 · 2025 report, page 2 | 0.45 ppm | 1 ppm | 4 ppm | Below the health goal |
| Lead90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Manganesehighest measured · range 0.0061 to 0.0061 · 2025 report, page 3 | 0.0061 ppm | — | 0.05 ppm guideline | Within the guideline |
| Nitrate (as N)highest measured · range 0.7 to 0.7 · 2025 report, page 2 | 0.7 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHhighest measured · range 8.15 to 8.15 · 2025 report, page 3 | 8.15 | — | — | Normal range |
| Sulfatehighest measured · range 8.65 to 8.65 · 2025 report, page 3 | 8.65 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 192 to 192 · 2025 report, page 3 | 192 ppm | — | 500 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 120 to 120 · highest of 2 sources · 2025 report, page 3 | 120 ppm | None set | None | No health limit |
| Calciumhighest measured · range 21.9 to 21.9 · 2025 report, page 3 | 21.9 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 3.99 to 3.99 · 2025 report, page 3 | 3.99 gpg (68.2 ppm) | — | — | Moderately hard |
| Magnesiumhighest measured · range 3.26 to 3.26 · 2025 report, page 3 | 3.26 ppm | None set | None | No health limit |
| Potassiumhighest measured · range 9.21 to 9.21 · 2025 report, page 3 | 9.21 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 36.7 to 36.7 · 2025 report, page 3 | 36.7 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. 4 numbers we weren’t sure about are held back until a person checks.
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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