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LakeQuality

Humeston Reservoir vs Williamson Pond Max Depth

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

Humeston Reservoir and Williamson Pond Max Depth both received the same overall water quality grade of F (Very Poor). Both are in Wisconsin.

Humeston Reservoir and Williamson Pond Max Depth are both in Iowa — 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: Humeston Reservoir (F) and Williamson Pond Max Depth (F) 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.

F

Humeston Reservoir

Wayne County, Wisconsin

Very murky, less than 1.6 ft of visibility.

F

Williamson Pond Max Depth

Lucas County, Wisconsin

Very murky, less than 1.6 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.

MetricHumeston ReservoirWilliamson Pond Max Depth
Overall GradeF (Very Poor)F (Very Poor)
Water Clarity1.6 ft1.6 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)41.4 µg/L73.9 µg/L
Maximum Depth--
Surface Area37.4 acres25 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophichypereutrophic

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

Verdict

Both lakes earn the same Grade F. The tiebreakers come down to clarity (Humeston Reservoir: 1.6 ft, Williamson Pond Max Depth: 1.6 ft) and what you want from the lake. Humeston Reservoir matches its peer on species count.