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LakeQuality

East Lake Osceola vs Humeston Reservoir

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

East Lake Osceola and Humeston Reservoir both received the same overall water quality grade of F (Very Poor). Both are in Wisconsin.

Both East Lake Osceola and Humeston Reservoir sit in Iowa. A same-state comparison strips out the state-level water-quality regime as a variable: any grade differences here are about the lakes themselves, not the agencies grading them. These two are within a letter of each other on the rubric — East Lake Osceola (F) versus Humeston Reservoir (F). The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.

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

East Lake Osceola

Clarke County, Wisconsin

Very murky, less than 1.2 ft of visibility.

F

Humeston Reservoir

Wayne 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.

MetricEast Lake OsceolaHumeston Reservoir
Overall GradeF (Very Poor)F (Very Poor)
Water Clarity1.2 ft1.6 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)81.6 µg/L41.4 µg/L
Maximum Depth--
Surface Area13 acres37.4 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Statehypereutrophiceutrophic

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 (East Lake Osceola: 1.2 ft, Humeston Reservoir: 1.6 ft) and what you want from the lake. East Lake Osceola matches its peer on species count.