Is Ann Lake Safe for Swimming?
Ann Lake in Kanabec County, Minnesota has a water quality grade of D (Poor). Swimming not recommended, poor water quality with high algae risk. Water clarity: 2 ft visibility. Phosphorus: 78.5 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | D (Poor) |
| Water Clarity (Secchi Depth) | 2 ft |
| Phosphorus | 78.5 μg/L |
| Maximum Depth | 17 ft |
| Location | Kanabec County, Minnesota |
How does Ann Lake compare?
With an overall water quality grade of D, Ann Lake falls below the Minnesota state average of Grade C. It ranks #5 of 7 lakes in Kanabec County by water quality score.
Water clarity (Secchi depth) sits at 2 feet. That signals heavy algae or sediment, often tied to high phosphorus from runoff.