Is Andrew Lake Safe for Swimming?
Andrew Lake in Douglas County, Minnesota has a water quality grade of A (Excellent). Excellent for swimming, crystal clear water with minimal algae. Water clarity: 13.9 ft visibility. Phosphorus: 16.5 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | A (Excellent) |
| Water Clarity (Secchi Depth) | 13.9 ft |
| Phosphorus | 16.5 μg/L |
| Maximum Depth | 83 ft |
| Location | Douglas County, Minnesota |
How does Andrew Lake compare?
With an overall water quality grade of A, Andrew Lake matches or beats the Minnesota state average of Grade C. It ranks #18 of 51 lakes in Douglas County by water quality score.
Water clarity (Secchi depth) sits at 13.9 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.