How Clean Is Rock River Lake?
Rock River 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): 21 ft. Trophic State Index: 33.
Cleanliness Snapshot
| Metric | Rock River Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | A | C |
| Water Clarity (Secchi) | 21 ft | — |
| Trophic State Index | 33 | <50 = clean |
How does Rock River Lake compare?
Rock River Lake's grade of A matches or beats the Wisconsin state average of C. It ranks #1 of 4 lakes in Rock County by water quality score.