How Clean Is Bright Lake?
Bright Lake has very poor water quality and a high algae bloom risk. It received a water quality grade of F (Very Poor) based on EPA monitoring data. Water clarity (Secchi depth): 1 ft. Phosphorus: 138 µg/L. Trophic State Index: 76.
Cleanliness Snapshot
| Metric | Bright Lake | Minnesota avg |
|---|---|---|
| Overall Grade | F | C |
| Water Clarity (Secchi) | 1 ft | — |
| Phosphorus | 138 µg/L | <30 = clean |
| Trophic State Index | 76 | <50 = clean |
How does Bright Lake compare?
Bright Lake's grade of F falls below the Minnesota state average of C. It ranks #13 of 14 lakes in Martin County by water quality score.