Is Altoona Lake Safe for Swimming?
Altoona Lake in Eau Claire County, Wisconsin has a water quality grade of F (Very Poor). Avoid swimming, very poor water quality, potential algae toxins. Water clarity: 3 ft visibility. Phosphorus: 99.6 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | F (Very Poor) |
| Water Clarity (Secchi Depth) | 3 ft |
| Phosphorus | 99.6 μg/L |
| Maximum Depth | 25 ft |
| Location | Eau Claire County, Wisconsin |
How does Altoona Lake compare?
With an overall water quality grade of F, Altoona Lake falls below the Wisconsin state average of Grade C. It ranks #3 of 3 lakes in Eau Claire County by water quality score.
Water clarity (Secchi depth) sits at 3 feet. That falls into moderate clarity — typical for lakes with some nutrient enrichment.