City Millpond vs Green Lake East Basin
Water quality, depth, fish species, and recreation comparison.
Green Lake East Basin has a higher water quality grade (B, Good) than City Millpond (C, Fair). Both are in Green Lake County, Wisconsin.
City Millpond and Green Lake East Basin 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 — City Millpond (C) versus Green Lake East Basin (B). 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.
City Millpond
No clarity data.
Green Lake East Basin
Good clarity, visible to about 11.8 ft.
Side-by-Side Metrics
| Metric | City Millpond | Green Lake East Basin |
|---|---|---|
| Overall Grade | C (Fair) | B (Good) |
| Water Clarity | No data | 11.8 ft |
| Phosphorus | 38.4 µg/L | 43 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 236 ft | 236 ft |
| Surface Area | 7.9K acres | 7.9K acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | eutrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Green Lake East Basin wins on overall water quality with a Grade B versus City Millpond's Grade C. For fishing diversity, Green Lake East Basin also leads with 0 species.