Is Tappan Lake Safe for Swimming?
Tappan Lake in Harrison County, Wisconsin has a water quality grade of D (Poor). Swimming not recommended, poor water quality with high algae risk. Phosphorus: 77 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | D (Poor) |
| Phosphorus | 77 μg/L |
| Location | Harrison County, Wisconsin |
How does Tappan Lake compare?
With an overall water quality grade of D, Tappan Lake matches or beats the Wisconsin state average of Grade D. It ranks #1 of 2 lakes in Harrison County by water quality score.