Is Mary Lake Safe for Swimming?
Mary Lake in Dickinson County, Wisconsin has a water quality grade of B (Good). Good for swimming, clear water with low algae levels. Water clarity: 13.8 ft visibility. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | B (Good) |
| Water Clarity (Secchi Depth) | 13.8 ft |
| Location | Dickinson County, Wisconsin |
How does Mary Lake compare?
With an overall water quality grade of B, Mary Lake matches or beats the Wisconsin state average of Grade B. It ranks #5 of 6 lakes in Dickinson County by water quality score.
Water clarity (Secchi depth) sits at 13.8 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.