How Clean Is Cannon Lake?
Cannon 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): 4.1 ft. Phosphorus: 244 µg/L. Chlorophyll-a (algae): 46.5 µg/L. Trophic State Index: 69.
Cleanliness Snapshot
| Metric | Cannon Lake | Minnesota avg |
|---|---|---|
| Overall Grade | F | C |
| Water Clarity (Secchi) | 4.1 ft | — |
| Phosphorus | 244 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 46.5 µg/L | <10 = clean |
| Trophic State Index | 69 | <50 = clean |
How does Cannon Lake compare?
Cannon Lake's grade of F falls below the Minnesota state average of C. It ranks #12 of 14 lakes in Rice County by water quality score.