Is Marion Lake Safe for Swimming?
Marion Lake in Dakota County, Minnesota has a water quality grade of C (Fair). Generally safe for swimming, moderate water quality. Water clarity: 7 ft visibility. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | C (Fair) |
| Water Clarity (Secchi Depth) | 7 ft |
| Maximum Depth | 21 ft |
| Location | Dakota County, Minnesota |
How does Marion Lake compare?
With an overall water quality grade of C, Marion Lake matches or beats the Minnesota state average of Grade C. It ranks #12 of 36 lakes in Dakota County by water quality score.
Water clarity (Secchi depth) sits at 7 feet. That puts the lake in good clarity range, with limited algae interference.