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LakeQuality

Lac la Belle Lake vs Lac la Belle Lake

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

Lac la Belle Lake has a higher water quality grade (B, Good) than Lac la Belle Lake (D, Poor). Both are in Waukesha County, Wisconsin.

Lac la Belle Lake and Lac la Belle Lake are both in Wisconsin — 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 meaningfully apart: Lac la Belle Lake grades a B while Lac la Belle Lake grades a D. That two-letter spread reflects real underlying differences — different watershed inputs, different depth profiles, or different monitoring rigor.

For a recreational visitor, the wider grade gap is decisive — Lac la Belle Lake 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?

B

Lac la Belle Lake

Waukesha County, Wisconsin

Murky, only visible to about 4.8 ft.

D

Lac la Belle Lake

Waukesha County, Wisconsin

Murky, only visible to about 5.5 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.

MetricLac la Belle LakeLac la Belle Lake
Overall GradeB (Good)D (Poor)
Water Clarity4.8 ft5.5 ft
Phosphorus14.7 µg/LNo data
Chlorophyll-a (Algae)No dataNo data
Maximum Depth45 ft45 ft
Surface Area1.2K acres1.2K acres
Public AccessUnknownUnknown
Fish Species00
Trophic Statemesotrophiceutrophic

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

Verdict

Lac la Belle Lake wins on overall water quality with a Grade B versus Lac la Belle Lake's Grade D. Water clarity: 4.8 ft vs 5.5 ft. For fishing diversity, Lac la Belle Lake also leads with 0 species.