How Clean Is Lost Lake?
Lost Lake is a clean lake by Wisconsin standards. It received a water quality grade of B (Good) based on EPA monitoring data. Water clarity (Secchi depth): 14.8 ft. Phosphorus: 35.3 µg/L. Trophic State Index: 47.
Cleanliness Snapshot
| Metric | Lost Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | B | B |
| Water Clarity (Secchi) | 14.8 ft | — |
| Phosphorus | 35.3 µg/L | <30 = clean |
| Trophic State Index | 47 | <50 = clean |
How does Lost Lake compare?
Lost Lake's grade of B matches or beats the Wisconsin state average of B. It ranks #190 of 202 lakes in Vilas County by water quality score. Multi-year monitoring data shows water quality is stable based on 7 years of records.