How Clean Is South Lake?
South Lake is among the cleanest lakes in Wisconsin. It received a water quality grade of A (Excellent) based on EPA monitoring data. Phosphorus: 4 µg/L. Trophic State Index: 24.
Cleanliness Snapshot
| Metric | South Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | A | B |
| Phosphorus | 4 µg/L | <30 = clean |
| Trophic State Index | 24 | <50 = clean |
How does South Lake compare?
South Lake's grade of A matches or beats the Wisconsin state average of B. It ranks #1 of 7 lakes in Herkimer County by water quality score.