Cleanest Lakes in Toole County, Montana
Grassy Lake in Toole County leads the rankings with a water quality grade of NR. Below are the top 11 cleanest monitored lakes in Toole County, Montana, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Grassy Lake | Toole | NR | - | - | - |
| 2 | Perkins Lake | Toole | NR | - | - | - |
| 3 | The Pot Hole | Toole | NR | - | - | - |
| 4 | Fowler Reservoir | Toole | NR | - | - | - |
| 5 | Verden Lake | Toole | NR | - | - | - |
| 6 | Aloe Lake | Toole | NR | - | - | - |
| 7 | Melcott Reservoir | Toole | NR | - | - | - |
| 8 | Dunkirk Reservoir | Toole | NR | - | - | - |
| 9 | Mc Carters Lake | Toole | NR | - | - | - |
| 10 | Big Dam | Toole | NR | - | - | - |
| 11 | Long Lake | Toole | NR | - | - | - |
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