How Clean Is Upper Eau Claire Lake?
Upper Eau Claire Lake 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): 18.7 ft. Phosphorus: 11.9 µg/L. Trophic State Index: 37.
Cleanliness Snapshot
| Metric | Upper Eau Claire Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | B | B |
| Water Clarity (Secchi) | 18.7 ft | — |
| Phosphorus | 11.9 µg/L | <30 = clean |
| Trophic State Index | 37 | <50 = clean |
How does Upper Eau Claire Lake compare?
Upper Eau Claire Lake's grade of B matches or beats the Wisconsin state average of B. It ranks #11 of 24 lakes in Bayfield County by water quality score. Multi-year monitoring data shows water quality is declining based on 6 years of records.
Watch Upper Eau Claire Lake water quality
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