Is Bright Lake Safe for Swimming?
Bright 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 ft visibility. Phosphorus: 138 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | F (Very Poor) |
| Water Clarity (Secchi Depth) | 1 ft |
| Phosphorus | 138 μg/L |
| Maximum Depth | 7 ft |
| Location | Martin County, Minnesota |
How does Bright Lake compare?
With an overall water quality grade of F, Bright Lake falls below the Minnesota state average of Grade C. It ranks #13 of 14 lakes in Martin County by water quality score.
Water clarity (Secchi depth) sits at 1 feet. That signals heavy algae or sediment, often tied to high phosphorus from runoff.