How Clean Is Greenwood Lake?
Greenwood Lake has fair water quality — typical of lakes with moderate nutrient enrichment. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 2.1 ft. Phosphorus: 27.5 µg/L. Chlorophyll-a (algae): 5.9 µg/L. Trophic State Index: 56.
Cleanliness Snapshot
| Metric | Greenwood Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 2.1 ft | — |
| Phosphorus | 27.5 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 5.9 µg/L | <10 = clean |
| Trophic State Index | 56 | <50 = clean |
How does Greenwood Lake compare?
Greenwood Lake's readings match or beat the Minnesota state average. It ranks #30 of 35 lakes in Lake County on nutrient and algae readings.
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