Cleanest Lakes in Kentucky
Nla Lake in Bell County leads the rankings with a water quality grade of A and 8.7 ft of clarity. Below are the top 16 cleanest monitored lakes in Kentucky, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Nla Lake | Bell | A | 8.7 ft | 8.5 µg/L | 2.1 µg/L |
| 2 | Nla Lake | Greenup | A | 19.5 ft | 9.9 µg/L | 2.2 µg/L |
| 3 | Nla Lake | Jackson | A | 5.7 ft | 8.9 µg/L | 2.9 µg/L |
| 4 | Nla Lake | Hopkins | A | 8 ft | 11.1 µg/L | 3.4 µg/L |
| 5 | Rough River Lake | Breckinridge | B | 6.4 ft | 23 µg/L | 4 µg/L |
| 6 | Nolin Lake | Edmonson | B | 5.5 ft | 17.5 µg/L | 10.2 µg/L |
| 7 | Nla Lake | Lincoln | B | 3.8 ft | 16.2 µg/L | 16.9 µg/L |
| 8 | Nla Lake | Webster | C | 5.1 ft | 28.7 µg/L | 15.1 µg/L |
| 9 | Nla Lake | Grant | C | 2.5 ft | 35.2 µg/L | 28.1 µg/L |
| 10 | Nla Lake | Christian | D | 4.4 ft | 25000 µg/L | 11.3 µg/L |
| 11 | Nla Lake | Madison | D | 4.4 ft | 44000 µg/L | 11.2 µg/L |
| 12 | Nla Lake | Hart | D | 4.6 ft | 25000 µg/L | 10.1 µg/L |
| 13 | Nla Lake | Shelby | D | 3.9 ft | 75000 µg/L | 21.7 µg/L |
| 14 | Nla Lake | Fulton | F | 1.5 ft | 469.3 µg/L | 46 µg/L |
| 15 | Nla Lake | Shelby | F | 2.1 ft | 95000 µg/L | 53.8 µg/L |
| 16 | Nla Lake | Graves | F | 1.1 ft | 196.6 µg/L | 53.9 µg/L |