Is Marion Lake Safe for Swimming?
Marion Lake in McLeod County, Minnesota has a water quality grade of F (Algae-prone). Algae and nutrients are often high — check current advisories before swimming. Skip the water if you see scum or a paint-like bloom. Phosphorus: 71 µg/L. Chlorophyll-a (algae): 73 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | F (Algae-prone) |
| Phosphorus | 71 μg/L |
| Chlorophyll-a (Algae) | 73 μg/L |
| Maximum Depth | 15.2 ft |
| Location | McLeod County, Minnesota |
How does Marion Lake compare?
With an overall water quality grade of F, Marion Lake falls below the Minnesota state average of Grade C. It ranks #3 of 5 lakes in McLeod County by water quality score.
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