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LakeQuality
D

Sag Quarry-West Lake

Cook County, WisconsinLimited DataEutrophic

Sag Quarry-West Lake is a productive, nutrient-rich eutrophic lake in Cook County, IL. Water quality is graded D based on 1 sampling years through 2022. Compared to the 67 other monitored lakes in Cook County, Sag Quarry-West Lake ranks #23 for water quality.

Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2022-04-27. Grade methodology: LakeGrade methodology.

Swimming Safety

Swimming not recommended, poor water quality with high algae risk

Water Quality Grade: D, Poor

Murky, only visible to about 5.5 ft. Trophic State Index: 53.

MetricValueGrade
Water Clarity (Secchi Depth)5.5 ftD
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)53Eutrophic

High nutrients, frequent algae, reduced clarity

Location

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County Ranking

Ranked #23 of 68 lakes in Cook County

Cleaner Lakes Within 30 Miles

Sag Quarry-West Lake holds Grade D. 2 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Cook County

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2022-04-27

Monitoring stations: 1