A
Jack Lake
Cass County, Minnesota
Water Quality Grade: A — Excellent
Crystal clear — you can see 15.7 feet down. Phosphorus level: 7 µg/L. Chlorophyll-a: 3.1 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.8 m | A |
| Phosphorus | 7 µg/L | A |
| Chlorophyll-a (Algae) | 3.1 µg/L | A |
County Ranking
Ranked #47 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: 2024-09-16
Monitoring stations: 2