Is Birch Lake Safe for Swimming?
Birch Lake in Sherburne County, Minnesota has a water quality grade of C (Fair). Generally safe for swimming — moderate water quality. Water clarity: 5.8 ft visibility. Phosphorus: 21 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | C (Fair) |
| Water Clarity (Secchi Depth) | 5.8 ft |
| Phosphorus | 21 μg/L |
| Maximum Depth | 18 ft |
| Location | Sherburne County, Minnesota |