How Clean Is Bemidji Lake?
Bemidji Lake is among the cleanest lakes in Minnesota. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 12.5 ft. Phosphorus: 16.5 µg/L. Chlorophyll-a (algae): 4 µg/L. Trophic State Index: 43.
Cleanliness Snapshot
| Metric | Bemidji Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 12.5 ft | — |
| Phosphorus | 16.5 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 4 µg/L | <10 = clean |
| Trophic State Index | 43 | <50 = clean |
How does Bemidji Lake compare?
Bemidji Lake's readings match or beat the Minnesota state average. It ranks #25 of 85 lakes in Beltrami County by water quality score. Multi-year monitoring data shows water quality is improving based on 5 years of records.
Watch Bemidji Lake water quality
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