Is Lake Redstone Safe for Swimming?
Lake Redstone in Sauk 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: 92 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 | 92 μg/L |
| Location | Sauk County, Wisconsin |
How does Lake Redstone compare?
With an overall water quality grade of F, Lake Redstone falls below the Wisconsin state average of Grade C. It ranks #9 of 11 lakes in Sauk 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.