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LakeQuality

George Lake vs Lost Grove Lake

Water quality, depth, fish species, and recreation comparison.

George Lake has a higher water quality grade (C, Fair) than Lost Grove Lake (C, Fair).

George Lake is in Illinois; Lost Grove Lake is in Iowa. Cross-state comparisons carry an extra wrinkle — Minnesota PCA and Wisconsin DNR use slightly different sampling cadences and station coverage, though both feed the same EPA Water Quality Portal. The grades are close: George Lake (C) and Lost Grove Lake (C) are within one letter of each other on the LakeGrade rubric. The per-parameter sub-grades below will show where the small differences actually live.

With grades this close, the choice between the two lakes turns on non-water-quality factors: depth, fish species, public access, distance from home. The per-lake pages below cover all of those.

C

George Lake

Rock Island County, Wisconsin

Murky, only visible to about 4.2 ft.

C

Lost Grove Lake

Scott County, Wisconsin

Murky, only visible to about 3.9 ft.

Side-by-Side Metrics

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

MetricGeorge LakeLost Grove Lake
Overall GradeC (Fair)C (Fair)
Water Clarity4.2 ft3.9 ft
Phosphorus22.5 µg/LNo data
Chlorophyll-a (Algae)No data15.8 µg/L
Maximum Depth--
Surface Area167 acres350 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophiceutrophic

Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).

Verdict

George Lake wins on overall water quality with a Grade C versus Lost Grove Lake's Grade C. Water clarity: 4.2 ft vs 3.9 ft. For fishing diversity, George Lake also leads with 0 species.