Cleanest Lakes in Sac County, Iowa
Arrowhead Lake in Sac County leads the rankings with a water quality grade of C and 5.6 ft of clarity. Below are the top 2 cleanest monitored lakes in Sac County, Iowa, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Arrowhead Lake | Sac | C | 5.6 ft | - | 7.1 µg/L |
| 2 | Black Hawk Lake | Sac | F | 0.9 ft | - | 54.1 µg/L |