Is Upper Turtle Lake Safe for Swimming?
Upper Turtle Lake in Barron County, Wisconsin has a water quality grade of B (Good). Good for swimming, clear water with low algae levels. Water clarity: 13.1 ft visibility. Phosphorus: 41.2 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | B (Good) |
| Water Clarity (Secchi Depth) | 13.1 ft |
| Phosphorus | 41.2 μg/L |
| Maximum Depth | 25 ft |
| Location | Barron County, Wisconsin |
How does Upper Turtle Lake compare?
With an overall water quality grade of B, Upper Turtle Lake matches or beats the Wisconsin state average of Grade B. It ranks #26 of 38 lakes in Barron County by water quality score.
Water clarity (Secchi depth) sits at 13.1 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.