Cleanest Lakes in Dewey County, South Dakota
Little Moreau Lake in Dewey County leads the rankings with a water quality grade of NR. Below are the top 11 cleanest monitored lakes in Dewey County, South Dakota, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Little Moreau Lake | Dewey | NR | - | - | - |
| 2 | Livermant Lake | Dewey | NR | - | - | - |
| 3 | Horseshoe Lake | Dewey | NR | - | - | - |
| 4 | Peach Lake | Dewey | NR | - | - | - |
| 5 | Whitehorse Lake | Dewey | NR | - | - | - |
| 6 | Goose Creek Dam | Dewey | NR | - | - | - |
| 7 | Isabel Lake | Dewey | NR | - | - | - |
| 8 | Timber Lake | Dewey | NR | - | - | - |
| 9 | Timber Lake | Dewey | NR | - | - | - |
| 10 | Lantry Lake | Dewey | NR | - | - | - |
| 11 | Eagle Butte Lake | Dewey | NR | - | - | - |
More Answers for Dewey County, South Dakota
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