How Clean Is High Lake?
High 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): 32.8 ft. Phosphorus: 14.2 µg/L. Trophic State Index: 35.
Cleanliness Snapshot
| Metric | High Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | A | B |
| Water Clarity (Secchi) | 32.8 ft | — |
| Phosphorus | 14.2 µg/L | <30 = clean |
| Trophic State Index | 35 | <50 = clean |
How does High Lake compare?
High Lake's grade of A matches or beats the Wisconsin state average of B. It ranks #59 of 202 lakes in Vilas County by water quality score. Multi-year monitoring data shows water quality is declining based on 7 years of records.