Is Shell Lake Safe for Swimming?
Shell Lake in Washburn County, Wisconsin has nutrient and algae measurements on record from state and federal monitoring. A water-quality reading is not a swimming clearance. The state water agency and county health departments post current advisories; check them before you swim.. Water clarity: 16 ft visibility. Phosphorus: 15.2 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Water Clarity (Secchi Depth) | 16 ft |
| Phosphorus | 15.2 μg/L |
| Maximum Depth | 36 ft |
| Location | Washburn County, Wisconsin |
How does Shell Lake compare?
With an overall water-quality readings of —, Shell Lake matches or beats the Wisconsin state average. It ranks #8 of 27 lakes in Washburn County by water quality score.
Water clarity (Secchi depth) sits at 16 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.
Watch Shell Lake water quality
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