How Clean Is North Long Lake?
North Long Lake is among the cleanest lakes in Minnesota. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 15.1 ft. Phosphorus: 14 µg/L. Chlorophyll-a (algae): 2.7 µg/L. Trophic State Index: 40.
Cleanliness Snapshot
| Metric | North Long Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 15.1 ft | — |
| Phosphorus | 14 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 2.7 µg/L | <10 = clean |
| Trophic State Index | 40 | <50 = clean |
How does North Long Lake compare?
North Long Lake's readings match or beat the Minnesota state average. It ranks #4 of 85 lakes in Crow Wing County on nutrient and algae readings.
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