How Clean Is Bright Lake?
Bright Lake is algae-prone, with a higher bloom risk in warm months. It received a water quality grade of F (Algae-prone) based on EPA monitoring data. Water clarity (Secchi depth): 1 ft. Phosphorus: 110.5 µg/L. Chlorophyll-a (algae): 54.1 µg/L. Trophic State Index: 73.
Cleanliness Snapshot
| Metric | Bright Lake | Minnesota avg |
|---|---|---|
| Overall Grade | F | C |
| Water Clarity (Secchi) | 1 ft | — |
| Phosphorus | 110.5 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 54.1 µg/L | <10 = clean |
| Trophic State Index | 73 | <50 = clean |
How does Bright Lake compare?
Bright Lake's grade of F falls below the Minnesota state average of C. It ranks #11 of 12 lakes in Martin County by water quality score.