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LakeQuality

Fowler Lake vs Okauchee Lake-Site No. 2-at Okauchee

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

Fowler Lake has a higher water quality grade (A, Excellent) than Okauchee Lake-Site No. 2-at Okauchee (B, Good). Both are in Waukesha County, Wisconsin.

Fowler Lake and Okauchee Lake-Site No. 2-at Okauchee 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. These two are within a letter of each other on the rubric — Fowler Lake (A) versus Okauchee Lake-Site No. 2-at Okauchee (B). The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.

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.

A

Fowler Lake

Waukesha County, Wisconsin

Good clarity, visible to about 14.5 ft.

B

Okauchee Lake-Site No. 2-at Okauchee

Waukesha County, Wisconsin

Murky, only visible to about 5.9 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.

MetricFowler LakeOkauchee Lake-Site No. 2-at Okauchee
Overall GradeA (Excellent)B (Good)
Water Clarity14.5 ft5.9 ft
Phosphorus15.6 µg/L18 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth--
Surface Area78 acres1.2K acres
Public AccessUnknownUnknown
Fish Species00
Trophic Statemesotrophicmesotrophic

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

Verdict

Fowler Lake wins on overall water quality with a Grade A versus Okauchee Lake-Site No. 2-at Okauchee's Grade B. Water clarity: 14.5 ft vs 5.9 ft. For fishing diversity, Fowler Lake also leads with 0 species.