Is Jamesville Reservoir Safe for Swimming?
Jamesville Reservoir in Onondaga County, Wisconsin has a water quality grade of D (Poor). Swimming not recommended, poor water quality with high algae risk. Water clarity: 5.3 ft visibility. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | D (Poor) |
| Water Clarity (Secchi Depth) | 5.3 ft |
| Location | Onondaga County, Wisconsin |
How does Jamesville Reservoir compare?
With an overall water quality grade of D, Jamesville Reservoir falls below the Wisconsin state average of Grade B. It ranks #4 of 4 lakes in Onondaga County by water quality score.
Water clarity (Secchi depth) sits at 5.3 feet. That falls into moderate clarity — typical for lakes with some nutrient enrichment.