Is Maple Lake Safe for Swimming?
Maple Lake in Polk County, Minnesota has a water quality grade of C (Fair). Generally safe for swimming, moderate water quality. Water clarity: 3.4 ft visibility. Phosphorus: 38 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | C (Fair) |
| Water Clarity (Secchi Depth) | 3.4 ft |
| Phosphorus | 38 μg/L |
| Location | Polk County, Minnesota |
How does Maple Lake compare?
With an overall water quality grade of C, Maple Lake matches or beats the Minnesota state average of Grade C. It ranks #10 of 20 lakes in Polk County by water quality score.
Water clarity (Secchi depth) sits at 3.4 feet. That falls into moderate clarity — typical for lakes with some nutrient enrichment.