We read 15 results from Forest Park Deer Park’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 150 people · Water system ID MO5036100 · 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 |
|---|---|---|---|---|
| Gross alpha (radioactivity)highest measured · range 3.2 to 3.2 · sampled 2021 · 2025 report, page 2 | 3.2 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Bariumhighest measured · range 0.02 to 0.02 · 2025 report, page 2 | 0.02 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 5.36 to 5.36 · 2025 report, page 3 | 5.36 ppm | — | 250 ppm guideline | Within the guideline |
| Nitrate (as N)highest measured · range 0.21 to 0.21 · 2025 report, page 2 | 0.21 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHhighest measured · range 7.68 to 7.68 · 2025 report, page 3 | 7.68 | — | — | Normal range |
| Sulfatehighest measured · range 8.96 to 8.96 · 2025 report, page 3 | 8.96 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 344 to 344 · 2025 report, page 3 | 344 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.01 to 0.01 · 2025 report, page 3 | 0.01 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 324 to 324 · 2025 report, page 3 | 324 ppm | None set | None | No health limit |
| Calciumhighest measured · range 64.5 to 64.5 · 2025 report, page 3 | 64.5 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 18.4 to 18.4 · 2025 report, page 3 | 18.4 gpg (314 ppm) | — | — | Very hard |
| Magnesiumhighest measured · range 37 to 37 · 2025 report, page 3 | 37 ppm | None set | None | No health limit |
| Nickelhighest measured · range 2.61 to 2.61 · printed as 0.00261 MG/L · 2025 report, page 3 | 2.61 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 1.08 to 1.08 · 2025 report, page 3 | 1.08 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 1.7 to 1.7 · 2025 report, page 3 | 1.7 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. 3 numbers we weren’t sure about are 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.
Radium and uranium
Found: Gross alpha (radioactivity)
What removes it: Reverse osmosis.
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