Sag Quarry East Lake
Cook County, WisconsinEutrophic
Sag Quarry East Lake is a productive, nutrient-rich eutrophic lake in Cook County, IL. Water quality is graded C based on 2 sampling years through 2021. Compared to the 67 other monitored lakes in Cook County, Sag Quarry East Lake ranks #12 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2021-10-26. Grade methodology: LakeGrade methodology.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 5.4 ft. Phosphorus level: 30.5 µg/L. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.4 ft | D |
| Phosphorus | 30.5 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #12 of 68 lakes in Cook County
Nearby Lakes in Cook County
More Wisconsin Lake Rankings
Other Grade C 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: 2021-10-26
Monitoring stations: 2