Southern Section Lake
Washington County, WisconsinEutrophic
Southern Section Lake is a productive, nutrient-rich eutrophic lake in Washington County, NY. Water quality is graded D based on 3 sampling years through 2024. Compared to the 2 other monitored lakes in Washington County, Southern Section Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2024-11-08. Grade methodology: LakeGrade methodology.
Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Very murky, less than 2 ft of visibility. Phosphorus level: 36.7 µg/L. Chlorophyll-a: 13.8 µg/L. Trophic State Index: 60.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2 ft | F |
| Phosphorus | 36.7 µg/L | C |
| Chlorophyll-a (Algae) | 13.8 µg/L | C |
| Trophic State Index (TSI) | 60 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #3 of 3 lakes in Washington County
Cleaner Lakes Within 30 Miles
Southern Section Lake holds Grade D. 2 nearby lakes hold higher grades.
- AQueneska Island LakeEssex County · 15.4 mi · Two grade letters higher (D → A)
- CSouthern Section LakeEssex County · 15.3 mi · Higher grade (D → C)
Nearby Lakes in Washington County
More Wisconsin Lake Rankings
Other Grade D Lakes in Wisconsin
Eutrophic Lakes in Wisconsin
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-11-08
Monitoring stations: 1