How Clean Is Lake Bonaparte?
Lake Bonaparte 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): 15.8 ft. Trophic State Index: 37.
Cleanliness Snapshot
| Metric | Lake Bonaparte | Wisconsin avg |
|---|---|---|
| Overall Grade | A | B |
| Water Clarity (Secchi) | 15.8 ft | — |
| Trophic State Index | 37 | <50 = clean |
How does Lake Bonaparte compare?
Lake Bonaparte's grade of A matches or beats the Wisconsin state average of B. It ranks #1 of 3 lakes in Lewis County by water quality score.