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LakeQuality

Lake Wapello vs White Oak Lake

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

Lake Wapello has a higher water quality grade (C, Fair) than White Oak Lake (F, Very Poor). Both are in Wisconsin.

Lake Wapello and White Oak Lake 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. Lake Wapello (C) is materially cleaner than White Oak Lake (F). A gap that wide is unlikely to close in a single year of remediation work; it reflects multi-decade differences in the lakes themselves.

For a recreational visitor, the wider grade gap is decisive — Lake Wapello is the better water-quality choice. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?

C

Lake Wapello

Davis County, Wisconsin

Moderate clarity, visible to about 7.5 ft.

F

White Oak Lake

Mahaska County, Wisconsin

Very murky, less than 1.4 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.

MetricLake WapelloWhite Oak Lake
Overall GradeC (Fair)F (Very Poor)
Water Clarity7.5 ft1.4 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)13 µg/L68.7 µg/L
Maximum Depth--
Surface Area287 acres20 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophichypereutrophic

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

Verdict

Lake Wapello wins on overall water quality with a Grade C versus White Oak Lake's Grade F. Water clarity: 7.5 ft vs 1.4 ft. For fishing diversity, Lake Wapello also leads with 0 species.