Pewaukee Lake vs Spring Lake
Water quality, depth, fish species, and recreation comparison.
Spring Lake has a higher water quality grade (A, Excellent) than Pewaukee Lake (B, Good). Both are in Waukesha County, Wisconsin.
Both Pewaukee Lake and Spring Lake sit in Wisconsin. 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: Pewaukee Lake (B) and Spring Lake (A) 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.
Pewaukee Lake
Moderate clarity, visible to about 7.5 ft.
Spring Lake
No clarity data.
Side-by-Side Metrics
| Metric | Pewaukee Lake | Spring Lake |
|---|---|---|
| Overall Grade | B (Good) | A (Excellent) |
| Water Clarity | 7.5 ft | No data |
| Phosphorus | 19.9 µg/L | 12.2 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | - | - |
| Surface Area | 2.5K acres | 60 acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | mesotrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Spring Lake wins on overall water quality with a Grade A versus Pewaukee Lake's Grade B. For fishing diversity, Spring Lake also leads with 0 species.