D
Little Lake Butte des Morts
Winnebago County, Wisconsin
Water Quality Grade: D — Poor
Murky — only visible to about 6.6 feet. Phosphorus level: 133.5 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2 m | D |
| Phosphorus | 133.5 µg/L | F |
| Chlorophyll-a (Algae) | No data |
Location
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County Ranking
Ranked #5 of 5 lakes in Winnebago County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-09-09
Monitoring stations: 1