How Clean Is Long Interlaken Lake Deep?
Long Interlaken Lake Deep is among the cleanest lakes in Wisconsin. It received a water quality grade of A (Excellent) based on EPA monitoring data. Water clarity (Secchi depth): 49.2 ft. Trophic State Index: 21.
Cleanliness Snapshot
| Metric | Long Interlaken Lake Deep | Wisconsin avg |
|---|---|---|
| Overall Grade | A | B |
| Water Clarity (Secchi) | 49.2 ft | — |
| Trophic State Index | 21 | <50 = clean |
How does Long Interlaken Lake Deep compare?
Long Interlaken Lake Deep's grade of A matches or beats the Wisconsin state average of B. It ranks #113 of 202 lakes in Vilas County by water quality score. Multi-year monitoring data shows water quality is declining based on 6 years of records.