Is Plum Lake Safe for Swimming?
Plum Lake in Vilas County, Wisconsin has a water quality grade of A (Excellent). Excellent for swimming, crystal clear water with minimal algae. Water clarity: 47.6 ft visibility. Phosphorus: 12.7 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | A (Excellent) |
| Water Clarity (Secchi Depth) | 47.6 ft |
| Phosphorus | 12.7 μg/L |
| Maximum Depth | 57 ft |
| Location | Vilas County, Wisconsin |
How does Plum Lake compare?
With an overall water quality grade of A, Plum Lake matches or beats the Wisconsin state average of Grade B. It ranks #95 of 202 lakes in Vilas County by water quality score.
Water clarity (Secchi depth) sits at 47.6 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.