How Clean Is Franklin Lake?
Franklin Lake is a clean lake by Wisconsin standards. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 16 ft. Phosphorus: 11.3 µg/L. Trophic State Index: 38.
Cleanliness Snapshot
| Metric | Franklin Lake | Wisconsin avg |
|---|---|---|
| Water Clarity (Secchi) | 16 ft | — |
| Phosphorus | 11.3 µg/L | <30 = clean |
| Trophic State Index | 38 | <50 = clean |
How does Franklin Lake compare?
Franklin Lake's readings match or beat the Wisconsin state average. It ranks #14 of 23 lakes in Forest County by water quality score. Multi-year monitoring data shows water quality is declining based on 6 years of records.
Watch Franklin Lake water quality
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