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LakeQuality

E. A. Patterson Lake vs Larson Lake

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

Larson Lake has a higher water quality grade (C, Fair) than E. A. Patterson Lake (D, Poor). Both are in Wisconsin.

Both E. A. Patterson Lake and Larson Lake sit in North Dakota. 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: E. A. Patterson Lake (D) and Larson 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

E. A. Patterson Lake

Stark County, Wisconsin

Murky, only visible to about 5.3 ft.

C

Larson Lake

Hettinger County, Wisconsin

Murky, only visible to about 4.8 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.

MetricE. A. Patterson LakeLarson Lake
Overall GradeD (Poor)C (Fair)
Water Clarity5.3 ft4.8 ft
Phosphorus262.5 µg/LNo data
Chlorophyll-a (Algae)15.9 µg/L13.1 µg/L
Maximum Depth--
Surface Area2.2K acres235 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophiceutrophic

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

Verdict

Larson Lake wins on overall water quality with a Grade C versus E. A. Patterson Lake's Grade D. Water clarity: 4.8 ft vs 5.3 ft. For fishing diversity, Larson Lake also leads with 0 species.