Is Lake Nehai Tonkayea Safe for Swimming?
Lake Nehai Tonkayea in Chariton County, Wisconsin has a water quality grade of B (Good). Good for swimming, clear water with low algae levels. Water clarity: 8 ft visibility. Phosphorus: 10 µg/L. Chlorophyll-a (algae): 1.3 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | B (Good) |
| Water Clarity (Secchi Depth) | 8 ft |
| Phosphorus | 10 μg/L |
| Chlorophyll-a (Algae) | 1.3 μg/L |
| Location | Chariton County, Wisconsin |
How does Lake Nehai Tonkayea compare?
With an overall water quality grade of B, Lake Nehai Tonkayea matches or beats the Wisconsin state average of Grade C. It ranks #1 of 3 lakes in Chariton County by water quality score.
Water clarity (Secchi depth) sits at 8 feet. That puts the lake in good clarity range, with limited algae interference. Algae levels (chlorophyll-a) measure 1.3 µg/L — low and well within safe swimming guidelines.