F
Duck Lake
Blue Earth County, Minnesota
Water Quality Grade: F — Very Poor
Very murky — less than 2.8 feet of visibility. Phosphorus level: 105 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.86 m | F |
| Phosphorus | 105 µg/L | F |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #7 of 9 lakes in Blue Earth County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-09-25
Monitoring stations: 1