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LakeQuality

Olp-10 Lake vs Wpa-04 Lake

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

Wpa-04 Lake has a higher water quality grade (C, Fair) than Olp-10 Lake (D, Poor). Both are in Wisconsin.

Both Olp-10 Lake and Wpa-04 Lake sit in Indiana. 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. The grades are close: Olp-10 Lake (D) and Wpa-04 Lake (C) 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

Olp-10 Lake

Warrick County, Wisconsin

Murky, only visible to about 3.5 ft.

C

Wpa-04 Lake

Dubois County, Wisconsin

Very murky, less than 1.5 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.

MetricOlp-10 LakeWpa-04 Lake
Overall GradeD (Poor)C (Fair)
Water Clarity3.5 ft1.5 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)30.3 µg/L5.3 µg/L
Maximum Depth--
Surface Area60 acres180 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophiceutrophic

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

Verdict

Wpa-04 Lake wins on overall water quality with a Grade C versus Olp-10 Lake's Grade D. Water clarity: 1.5 ft vs 3.5 ft. For fishing diversity, Wpa-04 Lake also leads with 0 species.