Is Upper Eau Claire Lake Safe for Swimming?
Upper Eau Claire Lake in Bayfield County, Wisconsin has a water quality grade of A (Excellent). Excellent for swimming, crystal clear water with minimal algae. Water clarity: 61.5 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) | 61.5 ft |
| Phosphorus | 11.5 μg/L |
| Maximum Depth | 92 ft |
| Location | Bayfield County, Wisconsin |
How does Upper Eau Claire Lake compare?
With an overall water quality grade of A, Upper Eau Claire Lake matches or beats the Wisconsin state average of Grade B. It ranks #2 of 55 lakes in Bayfield County by water quality score.
Water clarity (Secchi depth) sits at 61.5 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.