Is Long Lake Safe for Swimming?
Long Lake in Fond du Lac 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: 9.1 ft visibility. Phosphorus: 19.3 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Water Clarity (Secchi Depth) | 9.1 ft |
| Phosphorus | 19.3 μg/L |
| Maximum Depth | 47 ft |
| Location | Fond du Lac County, Wisconsin |
How does Long Lake compare?
On nutrient and algae readings, Long Lake matches or beats the Wisconsin state average. It ranks #1 of 9 lakes in Fond du Lac County on nutrient and algae readings.
Water clarity (Secchi depth) sits at 9.1 feet. That puts the lake in good clarity range, with limited algae interference.
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