Is Lower Nemahbin Lake Safe for Swimming?
Lower Nemahbin Lake in Waukesha County, Wisconsin has a water quality grade of A (Excellent). Excellent for swimming, crystal clear water with minimal algae. Water clarity: 10.9 ft visibility. Phosphorus: 11 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | A (Excellent) |
| Water Clarity (Secchi Depth) | 10.9 ft |
| Phosphorus | 11 μg/L |
| Location | Waukesha County, Wisconsin |
How does Lower Nemahbin Lake compare?
With an overall water quality grade of A, Lower Nemahbin Lake matches or beats the Wisconsin state average of Grade C. It ranks #16 of 45 lakes in Waukesha County by water quality score.
Water clarity (Secchi depth) sits at 10.9 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.