A
Koonz Lake - Deepest Part
Shawano County, WisconsinLimited Data
Water Quality Grade: A — Excellent
Crystal clear — you can see 34.5 feet down.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10.5 m | A |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #9 of 31 lakes in Shawano County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-10-04
Monitoring stations: 1