How Clean Is Long Lost Lake?
Long Lost Lake is among the cleanest lakes in Minnesota. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 22 ft. Phosphorus: 10.5 µg/L. Chlorophyll-a (algae): 2.4 µg/L. Trophic State Index: 37.
Cleanliness Snapshot
| Metric | Long Lost Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 22 ft | — |
| Phosphorus | 10.5 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 2.4 µg/L | <10 = clean |
| Trophic State Index | 37 | <50 = clean |
How does Long Lost Lake compare?
Long Lost Lake's readings match or beat the Minnesota state average. It ranks #15 of 37 lakes in Clearwater 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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