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LakeQuality

Sugar Creek Lake vs Thomas Hill Res. Nr. Dam Lake

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

Sugar Creek Lake and Thomas Hill Res. Nr. Dam Lake both received the same overall water quality grade of D (Poor). Both are in Randolph County, Wisconsin.

Sugar Creek Lake and Thomas Hill Res. Nr. Dam Lake are both in Missouri — a same-state head-to-head where the comparison comes down to lake-specific differences in depth, watershed, and monitoring history rather than the broader state-level water-quality regime. The grades are close: Sugar Creek Lake (D) and Thomas Hill Res. Nr. Dam Lake (D) 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.

D

Sugar Creek Lake

Randolph County, Wisconsin

Very murky, less than 2.5 ft of visibility.

D

Thomas Hill Res. Nr. Dam Lake

Randolph County, Wisconsin

Very murky, less than 2.3 ft of visibility.

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.

MetricSugar Creek LakeThomas Hill Res. Nr. Dam Lake
Overall GradeD (Poor)D (Poor)
Water Clarity2.5 ft2.3 ft
Phosphorus45 µg/L61 µg/L
Chlorophyll-a (Algae)22.7 µg/L14.2 µg/L
Maximum Depth--
Surface Area323 acres3.5K acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophiceutrophic

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

Verdict

Both lakes earn the same Grade D. The tiebreakers come down to clarity (Sugar Creek Lake: 2.5 ft, Thomas Hill Res. Nr. Dam Lake: 2.3 ft) and what you want from the lake. Sugar Creek Lake matches its peer on species count.