Lake 36 vs Lake St. Louis by Dam
Water quality, depth, fish species, and recreation comparison.
Lake 36 has a higher water quality grade (D, Poor) than Lake St. Louis by Dam (F, Very Poor). Both are in St. Charles County, Wisconsin.
Both Lake 36 and Lake St. Louis by Dam sit in Missouri. 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 — Lake 36 (D) versus Lake St. Louis by Dam (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.
Lake 36
Very murky, less than 2.5 ft of visibility.
Lake St. Louis by Dam
Very murky, less than 2.3 ft of visibility.
Side-by-Side Metrics
| Metric | Lake 36 | Lake St. Louis by Dam |
|---|---|---|
| Overall Grade | D (Poor) | F (Very Poor) |
| Water Clarity | 2.5 ft | 2.3 ft |
| Phosphorus | 31 µg/L | 74.8 µg/L |
| Chlorophyll-a (Algae) | 29.4 µg/L | 32.2 µg/L |
| Maximum Depth | - | - |
| Surface Area | 16 acres | 563 acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | eutrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Lake 36 wins on overall water quality with a Grade D versus Lake St. Louis by Dam's Grade F. Water clarity: 2.5 ft vs 2.3 ft. For fishing diversity, Lake 36 also leads with 0 species.