Olp-09 Lake vs Wpa-04 Lake
Water quality, depth, fish species, and recreation comparison.
Wpa-04 Lake has a higher water quality grade (C, Fair) than Olp-09 Lake (F, Very Poor). Both are in Wisconsin.
Olp-09 Lake and Wpa-04 Lake are both in Indiana — 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. Wpa-04 Lake (C) is materially cleaner than Olp-09 Lake (F). A gap that wide is unlikely to close in a single year of remediation work; it reflects multi-decade differences in the lakes themselves.
For a recreational visitor, the wider grade gap is decisive — Wpa-04 Lake 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?
Olp-09 Lake
Very murky, less than 1.6 ft of visibility.
Wpa-04 Lake
Very murky, less than 1.5 ft of visibility.
Side-by-Side Metrics
| Metric | Olp-09 Lake | Wpa-04 Lake |
|---|---|---|
| Overall Grade | F (Very Poor) | C (Fair) |
| Water Clarity | 1.6 ft | 1.5 ft |
| Phosphorus | No data | No data |
| Chlorophyll-a (Algae) | 81.8 µg/L | 5.3 µg/L |
| Maximum Depth | - | - |
| Surface Area | 39 acres | 180 acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | hypereutrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Wpa-04 Lake wins on overall water quality with a Grade C versus Olp-09 Lake's Grade F. Water clarity: 1.5 ft vs 1.6 ft. For fishing diversity, Wpa-04 Lake also leads with 0 species.