How Clean Is Lost Lake?
Lost Lake has fair water quality — typical of lakes with moderate nutrient enrichment. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 4.5 ft. Phosphorus: 34.5 µg/L. Trophic State Index: 55.
Cleanliness Snapshot
| Metric | Lost Lake | Wisconsin avg |
|---|---|---|
| Water Clarity (Secchi) | 4.5 ft | — |
| Phosphorus | 34.5 µg/L | <30 = clean |
| Trophic State Index | 55 | <50 = clean |
How does Lost Lake compare?
Lost Lake's readings run above the Wisconsin state average. It ranks #98 of 103 lakes in Vilas County on nutrient and algae readings. Multi-year monitoring data shows water quality is stable based on 7 years of records.
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