How Clean Is Manitowish Lake?
Manitowish 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): 41.8 ft. Trophic State Index: 23.
Cleanliness Snapshot
| Metric | Manitowish Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | A | B |
| Water Clarity (Secchi) | 41.8 ft | — |
| Trophic State Index | 23 | <50 = clean |
How does Manitowish Lake compare?
Manitowish Lake's grade of A matches or beats the Wisconsin state average of B. It ranks #78 of 202 lakes in Vilas County by water quality score. Multi-year monitoring data shows water quality is declining based on 2 years of records.