How Clean Is Big Round Deep Hole South Lake?
Big Round Deep Hole South Lake does not have enough monitoring data to grade. Its EPA monitoring record does not meet the evidence bar for a letter grade, so it is published unrated — that is an absence of evidence, not a poor result. The measurements below are what the record does contain. Water clarity (Secchi depth): 4.9 ft. Trophic State Index: 54.
Cleanliness Snapshot
| Metric | Big Round Deep Hole South Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | NR | B |
| Water Clarity (Secchi) | 4.9 ft | — |
| Trophic State Index | 54 | <50 = clean |
How does Big Round Deep Hole South Lake compare?
Big Round Deep Hole South Lake is not rated for water quality — its monitoring record does not meet the evidence bar, so it is not compared with the Wisconsin state average. Multi-year monitoring data shows water quality is improving based on 7 years of records.