Is George Lake Safe for Swimming?
George Lake in Martin 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: 160 µg/L. Chlorophyll-a (algae): 93.5 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 | 160 μg/L |
| Chlorophyll-a (Algae) | 93.5 μg/L |
| Location | Martin County, Minnesota |
How does George Lake compare?
With an overall water quality grade of F, George Lake falls below the Minnesota state average of Grade C. It ranks #2 of 7 lakes in Martin 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 93.5 µg/L — elevated; risk of harmful algal bloom advisories increases at this concentration.