F
Hall Lake
Martin County, Minnesota
Water Quality Grade: F — Very Poor
Very murky — less than 2.6 feet of visibility. Phosphorus level: 96 µg/L. Chlorophyll-a: 80.1 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.8 m | F |
| Phosphorus | 96 µg/L | F |
| Chlorophyll-a (Algae) | 80.1 µg/L | F |
County Ranking
Ranked #3 of 7 lakes in Martin County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-10-23
Monitoring stations: 1