How Clean Is Big Trout Lake?
Big Trout Lake is among the cleanest lakes in Minnesota. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 16.9 ft. Phosphorus: 10 µg/L. Chlorophyll-a (algae): 2.1 µg/L. Trophic State Index: 37.
Cleanliness Snapshot
| Metric | Big Trout Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 16.9 ft | — |
| Phosphorus | 10 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 2.1 µg/L | <10 = clean |
| Trophic State Index | 37 | <50 = clean |
How does Big Trout Lake compare?
Big Trout Lake's readings match or beat the Minnesota state average. It ranks #30 of 85 lakes in Crow Wing County on nutrient and algae readings. Multi-year monitoring data shows water quality is declining based on 6 years of records.
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