Is Little Lake Butte des Morts Safe for Swimming?
Little Lake Butte des Morts in Winnebago County, Wisconsin has a water quality grade of F (Very Poor). Avoid swimming, very poor water quality, potential algae toxins. Water clarity: 2 ft visibility. Phosphorus: 133.5 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | F (Very Poor) |
| Water Clarity (Secchi Depth) | 2 ft |
| Phosphorus | 133.5 μg/L |
| Location | Winnebago County, Wisconsin |
How does Little Lake Butte des Morts compare?
With an overall water quality grade of F, Little Lake Butte des Morts falls below the Wisconsin state average of Grade C. It ranks #5 of 5 lakes in Winnebago County by water quality score.
Water clarity (Secchi depth) sits at 2 feet. That signals heavy algae or sediment, often tied to high phosphorus from runoff.