We read 20 results from Ocwc Lantern Bay’s 2025 water quality report. No results over a legal limit; 2 above a health goal or guideline.
Serves about 502 people · Water system ID MO5071085 · 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 3.1 to 3.1 · sampled 2022 · 2025 report, page 2 | 3.1 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Lead90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | 3.54 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal18x the health goal |
| 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 5.08 to 5.08 · 2025 report, page 3 | 5.08 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 | 0.14 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Ironhighest measured · range 0.09 to 0.09 · 2025 report, page 3 | 0.09 ppm | — | 0.3 ppm guideline | Within the guideline |
| Manganesehighest measured · range 0.0036 to 0.0036 · 2025 report, page 3 | 0.0036 ppm | — | 0.05 ppm guideline | Within the guideline |
| Nitrate (as N)highest measured · range 0.08 to 0.08 · 2025 report, page 2 | 0.08 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHhighest measured · range 7.98 to 7.98 · 2025 report, page 3 | 7.98 | — | — | Normal range |
| Sulfatehighest measured · range 18.7 to 18.7 · 2025 report, page 3 | 18.7 ppm | — | 250 ppm guideline | Within the guideline |
| Toluenehighest measured · range 0.0016 to 0.0016 · 2025 report, page 2 | 0.0016 ppm | 1 ppm | 1 ppm | Below the health goal |
| Total dissolved solidshighest measured · range 276 to 276 · 2025 report, page 3 | 276 ppm | — | 500 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.14 to 0.14 · 2025 report, page 3 | 0.14 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 394 to 394 · 2025 report, page 3 | 394 ppm | None set | None | No health limit |
| Calciumhighest measured · range 60.8 to 60.8 · 2025 report, page 3 | 60.8 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 15.3 to 15.3 · 2025 report, page 3 | 15.3 gpg (262 ppm) | — | — | Very hard |
| Magnesiumhighest measured · range 26.7 to 26.7 · 2025 report, page 3 | 26.7 ppm | None set | None | No health limit |
| Nickelhighest measured · range 1.61 to 1.61 · printed as 0.00161 MG/L · 2025 report, page 3 | 1.61 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 1.37 to 1.37 · 2025 report, page 3 | 1.37 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 2.72 to 2.72 · 2025 report, page 3 | 2.72 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.
Radium and uranium
Found: Gross alpha (radioactivity)
What removes it: Reverse osmosis.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
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