C
Big Round Lake -
Pierce County, Wisconsin
Water Quality Grade: C — Fair
Murky — only visible to about 4.9 feet. Phosphorus level: 28.7 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.5 m | D |
| Phosphorus | 28.7 µg/L | B |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #89 of 113 lakes in Pierce County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-08-25
Monitoring stations: 1