How Clean Is Union Grove Lake?
Union Grove Lake has very poor water quality and a high algae bloom risk. It received a water quality grade of F (Very Poor) based on EPA monitoring data. Water clarity (Secchi depth): 1.6 ft. Chlorophyll-a (algae): 88.5 µg/L. Trophic State Index: 73.
Cleanliness Snapshot
| Metric | Union Grove Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | F | D |
| Water Clarity (Secchi) | 1.6 ft | — |
| Chlorophyll-a (Algae) | 88.5 µg/L | <10 = clean |
| Trophic State Index | 73 | <50 = clean |
How does Union Grove Lake compare?
Union Grove Lake's grade of F falls below the Wisconsin state average of D. It ranks #2 of 3 lakes in Tama County by water quality score.