Is Franklin Lake Safe for Swimming?
Franklin Lake in Forest County, Wisconsin has nutrient and algae measurements on record from state and federal monitoring. A water-quality reading is not a swimming clearance. The state water agency and county health departments post current advisories; check them before you swim.. Water clarity: 16 ft visibility. Phosphorus: 11.3 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Water Clarity (Secchi Depth) | 16 ft |
| Phosphorus | 11.3 μg/L |
| Maximum Depth | 46 ft |
| Location | Forest County, Wisconsin |
How does Franklin Lake compare?
With an overall water-quality readings of —, Franklin Lake matches or beats the Wisconsin state average. It ranks #14 of 23 lakes in Forest County by water quality score.
Water clarity (Secchi depth) sits at 16 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.
Watch Franklin Lake water quality
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