A
Pat Martin Lake
Carlton County, Minnesota
Water Quality Grade: A — Excellent
Good clarity — visible to about 13.6 feet. Phosphorus level: 15 µg/L. Chlorophyll-a: 3.6 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.15 m | B |
| Phosphorus | 15 µg/L | A |
| Chlorophyll-a (Algae) | 3.6 µg/L | A |
County Ranking
Ranked #6 of 41 lakes in Carlton County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-10-03
Monitoring stations: 1