How Clean Is Okabena Lake?
Okabena Lake is nutrient-rich, with elevated phosphorus and algae. It received a water quality grade of D (Nutrient-rich) based on EPA monitoring data. Water clarity (Secchi depth): 3.3 ft. Phosphorus: 166.5 µg/L. Chlorophyll-a (algae): 24.1 µg/L. Trophic State Index: 67.
Cleanliness Snapshot
| Metric | Okabena Lake | Minnesota avg |
|---|---|---|
| Overall Grade | D | C |
| Water Clarity (Secchi) | 3.3 ft | — |
| Phosphorus | 166.5 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 24.1 µg/L | <10 = clean |
| Trophic State Index | 67 | <50 = clean |
How does Okabena Lake compare?
Okabena Lake's grade of D falls below the Minnesota state average of C. It ranks #1 of 5 lakes in Nobles County by water quality score.
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