A
Spider Lake
Cass County, Minnesota
Water Quality Grade: A — Excellent
Good clarity — visible to about 10.2 feet. Phosphorus level: 12.5 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.1 m | B |
| Phosphorus | 12.5 µg/L | A |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #71 of 154 lakes in Cass County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2020-09-15
Monitoring stations: 1