Cleanest Lakes in Marion County, Iowa
Roberts Creek Lake in Marion County leads the rankings with a water quality grade of F and 1.5 ft of clarity. Below are the top 1 cleanest monitored lakes in Marion County, Iowa, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Roberts Creek Lake | Marion | F | 1.5 ft | - | 44.6 µg/L |