Is Stone Lake Safe for Swimming?
Stone Lake in Washburn County, Wisconsin has a water quality grade of B (Good). Good for swimming, clear water with low algae levels. Water clarity: 23 ft visibility. Phosphorus: 11.2 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | B (Good) |
| Water Clarity (Secchi Depth) | 23 ft |
| Phosphorus | 11.2 μg/L |
| Maximum Depth | 49 ft |
| Location | Washburn County, Wisconsin |
How does Stone Lake compare?
With an overall water quality grade of B, Stone Lake matches or beats the Wisconsin state average of Grade B. It ranks #5 of 27 lakes in Washburn County by water quality score.
Water clarity (Secchi depth) sits at 23 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.