Is Serpent Lake Safe for Swimming?
Serpent Lake in Crow Wing County, Minnesota has a water quality grade of A (Excellent). Excellent for swimming, crystal clear water with minimal algae. Water clarity: 25 ft visibility. Phosphorus: 11.5 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | A (Excellent) |
| Water Clarity (Secchi Depth) | 25 ft |
| Phosphorus | 11.5 μg/L |
| Maximum Depth | 65 ft |
| Location | Crow Wing County, Minnesota |
How does Serpent Lake compare?
With an overall water quality grade of A, Serpent Lake matches or beats the Minnesota state average of Grade C. It ranks #20 of 120 lakes in Crow Wing County by water quality score.
Water clarity (Secchi depth) sits at 25 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.