How Clean Is North Twin Lake?
North Twin 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): 45.9 ft. Trophic State Index: 22.
Cleanliness Snapshot
| Metric | North Twin Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | A | B |
| Water Clarity (Secchi) | 45.9 ft | — |
| Trophic State Index | 22 | <50 = clean |
How does North Twin Lake compare?
North Twin Lake's grade of A matches or beats the Wisconsin state average of B. It ranks #38 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.