B
Porcupine Lake-
Monroe County, Wisconsin
Water Quality Grade: B — Good
Crystal clear — you can see 18.5 feet down. Phosphorus level: 54.3 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.63 m | A |
| Phosphorus | 54.3 µg/L | C |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #71 of 82 lakes in Monroe County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-08-23
Monitoring stations: 1