How Clean Is Lake Iowa?
Lake Iowa 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): 1.9 ft. Chlorophyll-a (algae): 53.8 µg/L. Trophic State Index: 69.
Cleanliness Snapshot
| Metric | Lake Iowa | Wisconsin avg |
|---|---|---|
| Overall Grade | F | D |
| Water Clarity (Secchi) | 1.9 ft | — |
| Chlorophyll-a (Algae) | 53.8 µg/L | <10 = clean |
| Trophic State Index | 69 | <50 = clean |
How does Lake Iowa compare?
Lake Iowa's grade of F falls below the Wisconsin state average of D. It ranks #5 of 7 lakes in Iowa County by water quality score.