How Clean Is Clearwater Lake?
Clearwater Lake is among the cleanest lakes in Minnesota. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 29 ft. Phosphorus: 4 µg/L. Chlorophyll-a (algae): 1.3 µg/L. Trophic State Index: 29.
Cleanliness Snapshot
| Metric | Clearwater Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 29 ft | — |
| Phosphorus | 4 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 1.3 µg/L | <10 = clean |
| Trophic State Index | 29 | <50 = clean |
How does Clearwater Lake compare?
Clearwater Lake's readings match or beat the Minnesota state average. It ranks #1 of 44 lakes in Cook County by water quality score. Multi-year monitoring data shows water quality is stable based on 6 years of records.
Watch Clearwater Lake water quality
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