Is Halsey Lake Safe for Swimming?
Halsey Lake in Florence County, Wisconsin has a water quality grade of A (Excellent). Excellent for swimming, crystal clear water with minimal algae. Water clarity: 21.3 ft visibility. Phosphorus: 18 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | A (Excellent) |
| Water Clarity (Secchi Depth) | 21.3 ft |
| Phosphorus | 18 μg/L |
| Location | Florence County, Wisconsin |
How does Halsey Lake compare?
With an overall water quality grade of A, Halsey Lake matches or beats the Wisconsin state average of Grade B. It ranks #17 of 39 lakes in Florence County by water quality score.
Water clarity (Secchi depth) sits at 21.3 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.