How Clean Is Trout Lake?
Trout Lake is among the cleanest lakes in Minnesota. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 18 ft. Phosphorus: 3.5 µg/L. Chlorophyll-a (algae): 1.1 µg/L. Trophic State Index: 30.
Cleanliness Snapshot
| Metric | Trout Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 18 ft | — |
| Phosphorus | 3.5 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 1.1 µg/L | <10 = clean |
| Trophic State Index | 30 | <50 = clean |
How does Trout Lake compare?
Trout Lake's readings match or beat the Minnesota state average. It ranks #5 of 72 lakes in Itasca County on nutrient and algae readings. Multi-year monitoring data shows water quality is improving based on 5 years of records.
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