How Clean Is Long Lake?
Long Lake is a clean lake by Wisconsin standards. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 13.1 ft. Phosphorus: 12.4 µg/L. Trophic State Index: 40.
Cleanliness Snapshot
| Metric | Long Lake | Wisconsin avg |
|---|---|---|
| Water Clarity (Secchi) | 13.1 ft | — |
| Phosphorus | 12.4 µg/L | <30 = clean |
| Trophic State Index | 40 | <50 = clean |
How does Long Lake compare?
Long Lake's readings match or beat the Wisconsin state average. It ranks #3 of 7 lakes in Chippewa County by water quality score. Multi-year monitoring data shows water quality is improving based on 7 years of records.
Watch Long Lake water quality
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