Is Stump Lake Safe for Swimming?
Stump Lake in Beltrami County, Minnesota has a water quality grade of A (Excellent). Excellent for swimming, crystal clear water with minimal algae. Water clarity: 12.5 ft visibility. Phosphorus: 19.5 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | A (Excellent) |
| Water Clarity (Secchi Depth) | 12.5 ft |
| Phosphorus | 19.5 μg/L |
| Location | Beltrami County, Minnesota |
How does Stump Lake compare?
With an overall water quality grade of A, Stump Lake matches or beats the Minnesota state average of Grade C. It ranks #32 of 92 lakes in Beltrami County by water quality score.
Water clarity (Secchi depth) sits at 12.5 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.