How Clean Is Eau Claire Lake?
Eau Claire Lake has poor water quality, with elevated phosphorus and algae. It received a water quality grade of D (Poor) based on EPA monitoring data. Water clarity (Secchi depth): 2.8 ft. Phosphorus: 88 µg/L. Trophic State Index: 66.
Cleanliness Snapshot
| Metric | Eau Claire Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | D | C |
| Water Clarity (Secchi) | 2.8 ft | — |
| Phosphorus | 88 µg/L | <30 = clean |
| Trophic State Index | 66 | <50 = clean |
How does Eau Claire Lake compare?
Eau Claire Lake's grade of D falls below the Wisconsin state average of C. It ranks #2 of 3 lakes in Eau Claire County by water quality score. Multi-year monitoring data shows water quality is stable based on 4 years of records.