B
Island Lake -
Iron County, WisconsinLimited Data
Water Quality Grade: B — Good
Good clarity — visible to about 11.5 feet.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.5 m | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #43 of 50 lakes in Iron County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-09-24
Monitoring stations: 1