C
Union Lake
Rice County, Minnesota
Water Quality Grade: C — Fair
Very murky — less than 3.0 feet of visibility. Phosphorus level: 1.4 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.91 m | F |
| Phosphorus | 1.4 µg/L | A |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #2 of 12 lakes in Rice County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-10-20
Monitoring stations: 1