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LakeQuality

Casey Lake vs Pleasant Creek Lake

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

Pleasant Creek Lake has a higher water quality grade (D, Poor) than Casey Lake (F, Very Poor). Both are in Wisconsin.

Casey Lake and Pleasant Creek 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. The grades are close: Casey Lake (F) and Pleasant Creek 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.

F

Casey Lake

Tama County, Wisconsin

Very murky, less than 1.2 ft of visibility.

D

Pleasant Creek Lake

Linn County, Wisconsin

Murky, only visible to about 3.6 ft.

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.

MetricCasey LakePleasant Creek Lake
Overall GradeF (Very Poor)D (Poor)
Water Clarity1.2 ft3.6 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)95.5 µg/L26.5 µg/L
Maximum Depth--
Surface Area39.2 acres410 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Statehypereutrophiceutrophic

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

Verdict

Pleasant Creek Lake wins on overall water quality with a Grade D versus Casey Lake's Grade F. Water clarity: 3.6 ft vs 1.2 ft. For fishing diversity, Pleasant Creek Lake also leads with 0 species.