Is Topaz Lake Safe for Swimming?
Topaz Lake in Lake County, Minnesota has a water quality grade of A (Excellent). Excellent for swimming, crystal clear water with minimal algae. Water clarity: 17.5 ft visibility. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | A (Excellent) |
| Water Clarity (Secchi Depth) | 17.5 ft |
| Maximum Depth | 110 ft |
| Location | Lake County, Minnesota |
How does Topaz Lake compare?
With an overall water quality grade of A, Topaz Lake matches or beats the Minnesota state average of Grade C. It ranks #19 of 142 lakes in Lake County by water quality score.
Water clarity (Secchi depth) sits at 17.5 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.