How Clean Is Lake Chetac?
Lake Chetac has poor water quality, with elevated phosphorus and algae. It received a water quality grade of D (Poor) based on EPA monitoring data. Phosphorus: 68.8 µg/L. Trophic State Index: 65.
Cleanliness Snapshot
| Metric | Lake Chetac | Wisconsin avg |
|---|---|---|
| Overall Grade | D | B |
| Phosphorus | 68.8 µg/L | <30 = clean |
| Trophic State Index | 65 | <50 = clean |
How does Lake Chetac compare?
Lake Chetac's grade of D falls below the Wisconsin state average of B. It ranks #51 of 52 lakes in Sawyer County by water quality score. Multi-year monitoring data shows water quality is declining based on 5 years of records.