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LakeQuality
C

Forge Quarry Lake

Cook County, WisconsinLimited DataMesotrophic

Forge Quarry Lake is a mesotrophic lake in Cook County, IL. Water quality is graded C based on 1 sampling years through 2022. Compared to the 67 other monitored lakes in Cook County, Forge Quarry Lake ranks #11 for water quality.

Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2022-09-07. Grade methodology: LakeGrade methodology.

Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Moderate clarity, visible to about 8.5 ft. Trophic State Index: 46.

MetricValueGrade
Water Clarity (Secchi Depth)8.5 ftC
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)46Mesotrophic

Moderate nutrients, good water quality

Location

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County Ranking

Ranked #11 of 68 lakes in Cook County

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: 2022-09-07

Monitoring stations: 1