Lower Nemahbin Lake vs Spring Lake
Water quality, depth, fish species, and recreation comparison.
Spring Lake has a higher water quality grade (A, Excellent) than Lower Nemahbin Lake (A, Excellent). Both are in Waukesha County, Wisconsin.
Lower Nemahbin Lake and Spring 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. These two are within a letter of each other on the rubric — Lower Nemahbin Lake (A) versus Spring Lake (A). 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.
Lower Nemahbin Lake
Good clarity, visible to about 10.9 ft.
Spring Lake
No clarity data.
Side-by-Side Metrics
| Metric | Lower Nemahbin Lake | Spring Lake |
|---|---|---|
| Overall Grade | A (Excellent) | A (Excellent) |
| Water Clarity | 10.9 ft | No data |
| Phosphorus | 11 µg/L | 12.2 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | - | - |
| Surface Area | 268 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 Lower Nemahbin Lake's Grade A. For fishing diversity, Spring Lake also leads with 0 species.