A
Big Marine Lake
Washington County, Minnesota
Water Quality Grade: A — Excellent
Good clarity — visible to about 11.5 feet. Phosphorus level: 14.5 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.5 m | B |
| Phosphorus | 14.5 µg/L | A |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #6 of 31 lakes in Washington County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2020-10-19
Monitoring stations: 1