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LakeQuality

North Lake West Basin vs Pine Lake

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

Pine Lake has a higher water quality grade (A, Excellent) than North Lake West Basin (C, Fair). Both are in Waukesha County, Wisconsin.

North Lake West Basin and Pine 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: Pine Lake grades a A while North Lake West Basin grades a C. 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 — Pine 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?

C

North Lake West Basin

Waukesha County, Wisconsin

Moderate clarity, visible to about 9.5 ft.

A

Pine Lake

Waukesha County, Wisconsin

Crystal clear, you can see 25 ft down.

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.

MetricNorth Lake West BasinPine Lake
Overall GradeC (Fair)A (Excellent)
Water Clarity9.5 ft25 ft
PhosphorusNo data11.9 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth78.4 ft85 ft
Surface Area440 acres711 acres
Public AccessUnknownUnknown
Fish Species55
Trophic Statemesotrophicoligotrophic

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

Verdict

Pine Lake wins on overall water quality with a Grade A versus North Lake West Basin's Grade C. Water clarity: 25 ft vs 9.5 ft. For fishing diversity, Pine Lake also leads with 5 species.