Belly Deep Slough Lake
Cook County, WisconsinLimited DataHypereutrophic
Belly Deep Slough Lake is a highly nutrient-loaded hypereutrophic lake in Cook County, IL. Water quality is graded F based on 1 sampling years through 2022. Compared to the 67 other monitored lakes in Cook County, Belly Deep Slough Lake ranks #47 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2022-03-22. Grade methodology: LakeGrade methodology.
Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 0.7 ft of visibility. Trophic State Index: 83.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.7 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 83 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Location
County Ranking
Ranked #47 of 68 lakes in Cook County
Cleaner Lakes Within 30 Miles
Belly Deep Slough Lake holds Grade F. 3 nearby lakes hold higher grades.
- CSag Quarry East LakeCook County · 4.4 mi · Two grade letters higher (F → C)
- DBullfrog LakeCook County · 2.6 mi · Higher grade (F → D)
- DHorsetail LakeCook County · 3.1 mi · Higher grade (F → D)
Nearby Lakes in Cook County
More Wisconsin Lake Rankings
Other Grade F Lakes in Wisconsin
Hypereutrophic Lakes in Wisconsin
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2022-03-22
Monitoring stations: 1