How Clean Is Lake Metonga?
Lake Metonga 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): 72.2 ft. Phosphorus: 14 µg/L. Trophic State Index: 29.
Cleanliness Snapshot
| Metric | Lake Metonga | Wisconsin avg |
|---|---|---|
| Overall Grade | A | B |
| Water Clarity (Secchi) | 72.2 ft | — |
| Phosphorus | 14 µg/L | <30 = clean |
| Trophic State Index | 29 | <50 = clean |
How does Lake Metonga compare?
Lake Metonga's grade of A matches or beats the Wisconsin state average of B. It ranks #12 of 35 lakes in Forest County by water quality score. Multi-year monitoring data shows water quality is stable based on 7 years of records.