How Clean Is Forest Lake?
Forest Lake 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): 23 ft. Trophic State Index: 32.
Cleanliness Snapshot
| Metric | Forest Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | A | B |
| Water Clarity (Secchi) | 23 ft | — |
| Trophic State Index | 32 | <50 = clean |
How does Forest Lake compare?
Forest Lake's grade of A matches or beats the Wisconsin state average of B. It ranks #134 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.