We read 22 results from Parma Pws’s 2025 water quality report. No results over a legal limit; 6 above a health goal or guideline.
Serves about 450 people · Water system ID MO4010626 · 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 |
|---|---|---|---|---|
| Arsenichighest measured · range 3.74 to 3.74 · 2025 report, page 2 | 3.74 ppb | 0.004 ppb | 10 ppb | Above the health goal935x the health goal |
| Ironhighest measured · range 0.8 to 0.8 · 2025 report, page 3 | 0.8 ppm | — | 0.3 ppm guideline | Above the guideline2.7x the guideline (taste, odor or stains; not a health limit) |
| Lead90th percentile of homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 2 | 4.18 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal21x the health goal |
| Manganesehighest measured · range 0.1 to 0.1 · 2025 report, page 3 | 0.1 ppm | — | 0.05 ppm guideline | Above the guideline2x the guideline (taste, odor or stains; not a health limit) |
| Radium (combined 226 + 228)highest measured · range 2.1 to 2.1 · sampled 2024 · 2025 report, page 2 | 2.1 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Radium-226highest measured · range 2.1 to 2.1 · sampled 2024 · 2025 report, page 2 | 2.1 pCi/L | 0.05 pCi/L | 5 pCi/L | Above the health goal42x the health goal |
| Bariumhighest measured · range 0.33 to 0.33 · 2025 report, page 2 | 0.33 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 9.33 to 9.33 · 2025 report, page 3 | 9.33 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 2 | 0.05 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 11.3 to 11.3 · DBPDUAL-01 · 2025 report, page 2 | 11 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 15.5 to 15.5 · DBPDUAL-01 · 2025 report, page 2 | 16 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · range 0.26 to 0.26 · 2025 report, page 2 | 0.26 ppm | 1 ppm | 4 ppm | Below the health goal |
| pHhighest measured · range 8.01 to 8.01 · 2025 report, page 3 | 8.01 | — | — | Normal range |
| Total dissolved solidshighest measured · range 240 to 240 · 2025 report, page 3 | 240 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.0045 to 0.0045 · 2025 report, page 3 | 0.0045 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 246 to 246 · 2025 report, page 3 | 246 ppm | None set | None | No health limit |
| Calciumhighest measured · range 43.7 to 43.7 · 2025 report, page 3 | 43.7 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 8.95 to 8.95 · 2025 report, page 3 | 8.95 gpg (153 ppm) | — | — | Hard |
| Magnesiumhighest measured · range 10.6 to 10.6 · 2025 report, page 3 | 10.6 ppm | None set | None | No health limit |
| Nickelhighest measured · range 1.42 to 1.42 · printed as 0.00142 MG/L · 2025 report, page 3 | 1.42 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 2.06 to 2.06 · 2025 report, page 3 | 2.06 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 16 to 16 · 2025 report, page 3 | 16 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. 1 number we weren’t sure about is held back until a person checks.
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.
Sediment or cloudy water
Found: Iron, Manganese
What removes it: Oxidation filter.
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.
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