Is Portage Lake Safe for Swimming?
Portage Lake in Hubbard County, Minnesota has a water quality grade of C (Fair). Generally safe for swimming, moderate water quality. Water clarity: 5.7 ft visibility. Phosphorus: 28 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | C (Fair) |
| Water Clarity (Secchi Depth) | 5.7 ft |
| Phosphorus | 28 μg/L |
| Location | Hubbard County, Minnesota |
How does Portage Lake compare?
With an overall water quality grade of C, Portage Lake matches or beats the Minnesota state average of Grade C. It ranks #69 of 76 lakes in Hubbard County by water quality score.
Water clarity (Secchi depth) sits at 5.7 feet. That falls into moderate clarity — typical for lakes with some nutrient enrichment.