A
Viola Lake -
Burnett County, Wisconsin
Water Quality Grade: A — Excellent
Crystal clear — you can see 55.8 feet down. Phosphorus level: 17.2 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 17 m | A |
| Phosphorus | 17.2 µg/L | A |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #5 of 76 lakes in Burnett County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-10-10
Monitoring stations: 1