Cleanest Lakes in Iowa County, Wisconsin
Black Hawk Lake in Iowa County leads the rankings with a water quality grade of B and 5 ft of clarity. Below are the top 6 cleanest monitored lakes in Iowa County, Wisconsin, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Black Hawk Lake | Iowa | B | 5 ft | 19.9 µg/L | - |
| 2 | Goodwiler Lake | Iowa | C | 4.7 ft | 29.7 µg/L | - |
| 3 | Kendal Lake | Iowa | C | 6.9 ft | 32.7 µg/L | - |
| 4 | Helen Lake | Iowa | C | 3.4 ft | 54.7 µg/L | - |
| 5 | Avoca Lake | Iowa | D | 2 ft | 80.5 µg/L | - |
| 6 | Ludden Lake | Iowa | F | 1.5 ft | 172 µg/L | - |