Is Birch Lake Safe for Swimming?
Birch Lake in Sawyer County, Wisconsin has a water quality grade of D (Poor). Swimming not recommended, poor water quality with high algae risk. Phosphorus: 60.3 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | D (Poor) |
| Phosphorus | 60.3 μg/L |
| Location | Sawyer County, Wisconsin |
How does Birch Lake compare?
With an overall water quality grade of D, Birch Lake falls below the Wisconsin state average of Grade C. It ranks #48 of 50 lakes in Sawyer County by water quality score.