Is Birch Lake Safe for Swimming?
Birch Lake in Washburn County, Wisconsin has a water quality grade of C (Fair). Generally safe for swimming, moderate water quality. Water clarity: 5.5 ft visibility. Phosphorus: 27.6 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | C (Fair) |
| Water Clarity (Secchi Depth) | 5.5 ft |
| Phosphorus | 27.6 μg/L |
| Location | Washburn County, Wisconsin |
How does Birch Lake compare?
With an overall water quality grade of C, Birch Lake matches or beats the Wisconsin state average of Grade C. It ranks #36 of 47 lakes in Washburn County by water quality score.
Water clarity (Secchi depth) sits at 5.5 feet. That falls into moderate clarity — typical for lakes with some nutrient enrichment.