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LakeQuality

Leesville Lake vs Tappan Lake

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

Leesville Lake and Tappan Lake both received the same overall water quality grade of D (Poor). Both are in Wisconsin.

Leesville Lake and Tappan Lake are both in Ohio — 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: Leesville Lake (D) and Tappan 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

Leesville Lake

Carroll County, Wisconsin

Murky, only visible to about 5 ft.

D

Tappan Lake

Harrison County, Wisconsin

No clarity data.

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.

MetricLeesville LakeTappan Lake
Overall GradeD (Poor)D (Poor)
Water Clarity5 ftNo data
PhosphorusNo data77 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth--
Surface Area1.0K acres2.4K 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 what you want from the lake. Leesville Lake matches its peer on species count.