Is Outlet of Onamia Lake on the Rum River Safe for Swimming?
Outlet of Onamia Lake on the Rum River in Mille Lacs County, Minnesota has nutrient and algae measurements on record from state and federal monitoring. A water-quality reading is not a swimming clearance. The state water agency and county health departments post current advisories; check them before you swim.. Phosphorus: 21.8 µg/L. Chlorophyll-a (algae): 0.6 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Phosphorus | 21.8 μg/L |
| Chlorophyll-a (Algae) | 0.6 μg/L |
| Maximum Depth | 10 ft |
| Location | Mille Lacs County, Minnesota |
How does Outlet of Onamia Lake on the Rum River compare?
On nutrient and algae readings, Outlet of Onamia Lake on the Rum River matches or beats the Minnesota state average. It ranks #3 of 9 lakes in Mille Lacs County on nutrient and algae readings.
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