Cleanest Lakes in McDonough County, Illinois
Vermont New Lake in McDonough County leads the rankings with a water quality grade of NR. Below are the top 4 cleanest monitored lakes in McDonough County, Illinois, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Vermont New Lake | McDonough | NR | - | - | - |
| 2 | Colmar Lake | McDonough | NR | - | - | - |
| 3 | Spring Lake | McDonough | NR | - | - | - |
| 4 | Argyle Lake | McDonough | NR | - | - | - |
More Answers for McDonough County, Illinois
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