How Clean Is Lake of the Falls?
Lake of the Falls 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): 5.4 ft. Phosphorus: 19.6 µg/L. Trophic State Index: 50.
Cleanliness Snapshot
| Metric | Lake of the Falls | Wisconsin avg |
|---|---|---|
| Overall Grade | B | C |
| Water Clarity (Secchi) | 5.4 ft | — |
| Phosphorus | 19.6 µg/L | <30 = clean |
| Trophic State Index | 50 | <50 = clean |
How does Lake of the Falls compare?
Lake of the Falls's grade of B matches or beats the Wisconsin state average of C. It ranks #16 of 33 lakes in Iron County by water quality score. Multi-year monitoring data shows water quality is stable based on 6 years of records.