How Clean Is Little St Germain Lake?
Little St Germain 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): 11.5 ft. Phosphorus: 45.4 µg/L. Trophic State Index: 51.
Cleanliness Snapshot
| Metric | Little St Germain Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | B | B |
| Water Clarity (Secchi) | 11.5 ft | — |
| Phosphorus | 45.4 µg/L | <30 = clean |
| Trophic State Index | 51 | <50 = clean |
How does Little St Germain Lake compare?
Little St Germain Lake's grade of B matches or beats the Wisconsin state average of B. It ranks #189 of 202 lakes in Vilas County by water quality score. Multi-year monitoring data shows water quality is improving based on 7 years of records.