Is Crystal Lake Max Depth Safe for Swimming?
Crystal Lake Max Depth in Hancock County, Wisconsin has a water quality grade of F (Very Poor). Avoid swimming, very poor water quality, potential algae toxins. Water clarity: 1.6 ft visibility. Chlorophyll-a (algae): 50.3 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | F (Very Poor) |
| Water Clarity (Secchi Depth) | 1.6 ft |
| Chlorophyll-a (Algae) | 50.3 μg/L |
| Location | Hancock County, Wisconsin |
How does Crystal Lake Max Depth compare?
With an overall water quality grade of F, Crystal Lake Max Depth falls below the Wisconsin state average of Grade D. It ranks #1 of 2 lakes in Hancock County by water quality score.
Water clarity (Secchi depth) sits at 1.6 feet. That signals heavy algae or sediment, often tied to high phosphorus from runoff. Algae levels (chlorophyll-a) measure 50.3 µg/L — elevated; risk of harmful algal bloom advisories increases at this concentration.