D
Cup Lake
Big Stone County, MinnesotaLimited Data
Water Quality Grade: D — Poor
Murky — only visible to about 5.1 feet.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.55 m | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #2 of 13 lakes in Big Stone County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2022-08-22
Monitoring stations: 2