Is North Twin Lake Safe for Swimming?
North Twin Lake in Mahnomen County, Minnesota has a water quality grade of B (Good). Good for swimming, clear water with low algae levels. Water clarity: 8.5 ft visibility. Phosphorus: 17 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | B (Good) |
| Water Clarity (Secchi Depth) | 8.5 ft |
| Phosphorus | 17 μg/L |
| Maximum Depth | 16 ft |
| Location | Mahnomen County, Minnesota |
How does North Twin Lake compare?
With an overall water quality grade of B, North Twin Lake matches or beats the Minnesota state average of Grade C. It ranks #5 of 16 lakes in Mahnomen County by water quality score.
Water clarity (Secchi depth) sits at 8.5 feet. That puts the lake in good clarity range, with limited algae interference.