Comus Lake vs Lake Beulah
Water quality, depth, fish species, and recreation comparison.
Lake Beulah has a higher water quality grade (A, Excellent) than Comus Lake (F, Very Poor). Both are in Walworth County, Wisconsin.
Both Comus Lake and Lake Beulah 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 meaningfully apart: Lake Beulah grades a A while Comus Lake grades a F. 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 — Lake Beulah 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?
Comus Lake
Very murky, less than 1.5 ft of visibility.
Lake Beulah
Good clarity, visible to about 11 ft.
Side-by-Side Metrics
| Metric | Comus Lake | Lake Beulah |
|---|---|---|
| Overall Grade | F (Very Poor) | A (Excellent) |
| Water Clarity | 1.5 ft | 11 ft |
| Phosphorus | 193 µg/L | 13 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | - | - |
| Surface Area | 164 acres | 834 acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | hypereutrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Lake Beulah wins on overall water quality with a Grade A versus Comus Lake's Grade F. Water clarity: 11 ft vs 1.5 ft. For fishing diversity, Lake Beulah also leads with 0 species.