Is Ocheda Lake Safe for Swimming?
Ocheda Lake in Nobles County, Minnesota has a water quality grade of F (Very Poor). Avoid swimming, very poor water quality, potential algae toxins. Water clarity: 1.6 ft visibility. Phosphorus: 265 µg/L. Chlorophyll-a (algae): 72.8 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | F (Very Poor) |
| Water Clarity (Secchi Depth) | 1.6 ft |
| Phosphorus | 265 μg/L |
| Chlorophyll-a (Algae) | 72.8 μg/L |
| Maximum Depth | 5 ft |
| Location | Nobles County, Minnesota |
How does Ocheda Lake compare?
With an overall water quality grade of F, Ocheda Lake falls below the Minnesota state average of Grade C. It ranks #3 of 5 lakes in Nobles County by water quality score.
Water clarity (Secchi depth) sits at 1.6 feet. That signals heavy algae or sediment, often tied to high phosphorus from runoff. Algae levels (chlorophyll-a) measure 72.8 µg/L — elevated; risk of harmful algal bloom advisories increases at this concentration.