Is Jacksonville Lake Safe for Swimming?
Jacksonville Lake in Morgan County, Wisconsin has a water quality grade of D (Poor). Swimming not recommended, poor water quality with high algae risk. Water clarity: 1.8 ft visibility. Phosphorus: 48 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | D (Poor) |
| Water Clarity (Secchi Depth) | 1.8 ft |
| Phosphorus | 48 μg/L |
| Location | Morgan County, Wisconsin |
How does Jacksonville Lake compare?
With an overall water quality grade of D, Jacksonville Lake matches or beats the Wisconsin state average of Grade D. It ranks #1 of 2 lakes in Morgan County by water quality score.
Water clarity (Secchi depth) sits at 1.8 feet. That signals heavy algae or sediment, often tied to high phosphorus from runoff.