How Clean Is Cannon Lake?
Cannon Lake has poor water quality, with elevated phosphorus and algae. It received a water quality grade of D (Poor) based on EPA monitoring data. Water clarity (Secchi depth): 4.1 ft. Phosphorus: 244 µg/L. Trophic State Index: 70.
Cleanliness Snapshot
| Metric | Cannon Lake | Minnesota avg |
|---|---|---|
| Overall Grade | D | C |
| Water Clarity (Secchi) | 4.1 ft | — |
| Phosphorus | 244 µg/L | <30 = clean |
| Trophic State Index | 70 | <50 = clean |
How does Cannon Lake compare?
Cannon Lake's grade of D falls below the Minnesota state average of C. It ranks #5 of 17 lakes in Rice County by water quality score.