How Clean Is Otter Lake?
Otter Lake has poor water quality, with elevated phosphorus and algae. It received a water quality grade of D (Poor) based on EPA monitoring data. Water clarity (Secchi depth): 6.6 ft. Trophic State Index: 50.
Cleanliness Snapshot
| Metric | Otter Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | D | B |
| Water Clarity (Secchi) | 6.6 ft | — |
| Trophic State Index | 50 | <50 = clean |
How does Otter Lake compare?
Otter Lake's grade of D falls below the Wisconsin state average of B. It ranks #1 of 1 lakes in Oneida County by water quality score.