Ellis Lake vs Williamson Pond Max Depth
Water quality, depth, fish species, and recreation comparison.
Ellis Lake and Williamson Pond Max Depth both received the same overall water quality grade of F (Very Poor). Both are in Lucas County, Wisconsin.
Both Ellis Lake and Williamson Pond Max Depth sit in Iowa. 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. These two are within a letter of each other on the rubric — Ellis Lake (F) versus Williamson Pond Max Depth (F). 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.
Ellis Lake
Very murky, less than 2 ft of visibility.
Williamson Pond Max Depth
Very murky, less than 1.6 ft of visibility.
Side-by-Side Metrics
| Metric | Ellis Lake | Williamson Pond Max Depth |
|---|---|---|
| Overall Grade | F (Very Poor) | F (Very Poor) |
| Water Clarity | 2 ft | 1.6 ft |
| Phosphorus | No data | No data |
| Chlorophyll-a (Algae) | 35.6 µg/L | 73.9 µg/L |
| Maximum Depth | - | - |
| Surface Area | 80 acres | 25 acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | eutrophic | hypereutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Both lakes earn the same Grade F. The tiebreakers come down to clarity (Ellis Lake: 2 ft, Williamson Pond Max Depth: 1.6 ft) and what you want from the lake. Ellis Lake matches its peer on species count.