Is Birch Island Lake Safe for Swimming?
Birch Island Lake in Burnett County, Wisconsin has a water quality grade of A (Excellent). Excellent for swimming, crystal clear water with minimal algae. Water clarity: 26.2 ft visibility. Phosphorus: 13.7 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | A (Excellent) |
| Water Clarity (Secchi Depth) | 26.2 ft |
| Phosphorus | 13.7 μg/L |
| Location | Burnett County, Wisconsin |
How does Birch Island Lake compare?
With an overall water quality grade of A, Birch Island Lake matches or beats the Wisconsin state average of Grade B. It ranks #4 of 70 lakes in Burnett County by water quality score.
Water clarity (Secchi depth) sits at 26.2 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.