How Clean Is Lake Thompson?
Lake Thompson is a clean lake by Wisconsin standards. It received a water quality grade of B (Good) based on EPA monitoring data. Water clarity (Secchi depth): 13.1 ft. Phosphorus: 22.4 µg/L. Trophic State Index: 45.
Cleanliness Snapshot
| Metric | Lake Thompson | Wisconsin avg |
|---|---|---|
| Overall Grade | B | B |
| Water Clarity (Secchi) | 13.1 ft | — |
| Phosphorus | 22.4 µg/L | <30 = clean |
| Trophic State Index | 45 | <50 = clean |
How does Lake Thompson compare?
Lake Thompson's grade of B matches or beats the Wisconsin state average of B. It ranks #108 of 140 lakes in Oneida County by water quality score. Multi-year monitoring data shows water quality is stable based on 7 years of records.