We read 23 results from Montgomery City Pws’s 2025 water quality report. No results over a legal limit; 5 above a health goal or guideline.
Serves about 2,811 people · Water system ID MO6010539 · 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 |
|---|---|---|---|---|
| Fluoridehighest measured · range 1.85 to 2.04 · sampled 2024 · 2025 report, page 2 | 2.04 ppm | 1 ppm | 4 ppm | Above the 2 ppm secondary standard1x the 2 ppm secondary standard (EPA's level to prevent tooth discoloration, also used as health guidance); below the 4 ppm legal limit |
| Lead90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | 1.49 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal7.5x the health goal |
| Radium (combined 226 + 228)highest measured · range ND to 2 · sampled 2022 · 2025 report, page 2 | 2 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Radium-226highest measured · range ND to 2 · sampled 2022 · 2025 report, page 2 | 2 pCi/L | 0.05 pCi/L | 5 pCi/L | Above the health goal40x the health goal |
| Total dissolved solidshighest measured · range 619 to 690 · sampled 2024 · 2025 report, page 3 | 690 ppm | — | 500 ppm guideline | Above the guideline1.4x the guideline (taste, odor or stains; not a health limit) |
| Bariumhighest measured · range 0.01 to 0.02 · sampled 2024 · 2025 report, page 2 | 0.02 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 59.3 to 80.5 · sampled 2024 · 2025 report, page 3 | 80.5 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 | 0.12 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 1.31 to 1.31 · DBPDUAL-01 · 2025 report, page 2 | 1 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 12.8 to 12.8 · DBPDUAL-01 · 2025 report, page 2 | 13 ppb | None set | 80 ppb | Below the legal limit |
| Ironhighest measured · range 0.0063 to 0.04 · sampled 2024 · 2025 report, page 3 | 0.04 ppm | — | 0.3 ppm guideline | Within the guideline |
| Manganesehighest measured · range ND to 0.0017 · sampled 2024 · 2025 report, page 3 | 0.0017 ppm | — | 0.05 ppm guideline | Within the guideline |
| Nitrate (as N)highest measured · range 0.03 to 0.12 · 2025 report, page 2 | 0.12 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHhighest measured · range 8.1 to 8.17 · sampled 2024 · 2025 report, page 3 | 8.17 | — | — | Normal range |
| Sulfatehighest measured · range 101 to 180 · sampled 2024 · 2025 report, page 3 | 180 ppm | — | 250 ppm guideline | Within the guideline |
| Zinchighest measured · range ND to 0.0064 · sampled 2024 · 2025 report, page 3 | 0.0064 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 365 to 371 · sampled 2024 · 2025 report, page 3 | 371 ppm | None set | None | No health limit |
| Calciumhighest measured · range 68.3 to 73.1 · sampled 2024 · 2025 report, page 3 | 73.1 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 18.4 to 19.4 · sampled 2024 · 2025 report, page 3 | 19.4 gpg (332 ppm) | — | — | Very hard |
| Magnesiumhighest measured · range 34.9 to 36.4 · sampled 2024 · 2025 report, page 3 | 36.4 ppm | None set | None | No health limit |
| Nickelhighest measured · range 2.02 to 2.22 · printed as 0.00222 MG/L · sampled 2024 · 2025 report, page 3 | 2.22 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 12.1 to 13 · sampled 2024 · 2025 report, page 3 | 13 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 108 to 120 · sampled 2024 · 2025 report, page 3 | 120 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.
Fluoride
Found: Fluoride
What removes it: Reverse osmosis.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
Radium and uranium
Found: Radium (combined 226 + 228), Radium-226
What removes it: Reverse osmosis.
Salty taste / high TDS
Found: Total dissolved solids
What removes it: Reverse osmosis.
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