Cleanest Lakes in Carroll County, Iowa
Swan Lake Max Depth in Carroll County leads the rankings with a water quality grade of F and 1.4 ft of clarity. Below are the top 1 cleanest monitored lakes in Carroll County, Iowa, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Swan Lake Max Depth | Carroll | F | 1.4 ft | - | 74 µg/L |