Cleanest Lakes in Nebraska
Lake C W Mcconaughy in Keith County leads the rankings with a water quality grade of A and 7.2 ft of clarity. Below are the top 37 cleanest monitored lakes in Nebraska, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Lake C W Mcconaughy | Keith | A | 7.2 ft | 57.6 µg/L | 6.9 µg/L |
| 2 | Sherman Reservoir | Sherman | A | 2.4 ft | 99.7 µg/L | 4.4 µg/L |
| 3 | Lake Minatare | Scotts Bluff | A | 5.5 ft | 52.4 µg/L | 2.8 µg/L |
| 4 | Hershey Lake | Lincoln | A | 13.6 ft | 51.4 µg/L | 2.1 µg/L |
| 5 | Bridgeport Middle Lake | Morrill | A | 18.9 ft | - | 2 µg/L |
| 6 | Hugh Butler Lake | Frontier | A | 2.8 ft | 82.9 µg/L | 5.9 µg/L |
| 7 | Calamus Reservoir | Garfield | B | 3.6 ft | 124.5 µg/L | 26.1 µg/L |
| 8 | Cub Creek Lake | Keya Paha | B | 4.9 ft | 48.1 µg/L | 8.4 µg/L |
| 9 | Lake Maloney | Lincoln | B | 2.1 ft | 47.8 µg/L | 10.2 µg/L |
| 10 | Merritt Reservoir | Cherry | B | 2 ft | 147 µg/L | 92.1 µg/L |
| 11 | Pelican Lake | Cherry | B | 1.2 ft | 210 µg/L | 88.9 µg/L |
| 12 | Oliver Reservoir | Kimball | B | 1.7 ft | 71.8 µg/L | 7.9 µg/L |
| 13 | Smith Lake | Sheridan | B | 1.7 ft | 248 µg/L | 56.1 µg/L |
| 14 | Crescent Lake | Garden | B | 0.8 ft | 132.5 µg/L | 109.6 µg/L |
| 15 | Goose Lake | Holt | B | 1 ft | 170 µg/L | 32.6 µg/L |
| 16 | Swanson Reservoir | Hitchcock | B | 2.6 ft | 90 µg/L | 7.1 µg/L |
| 17 | Box Butte Reservoir | Dawes | C | 5.6 ft | 51.5 µg/L | 4.5 µg/L |
| 18 | Harry Strunk Lake | Frontier | C | 2.5 ft | 67.6 µg/L | 10.3 µg/L |
| 19 | Pibel Lake | Wheeler | C | 2 ft | 979 µg/L | 54.9 µg/L |
| 20 | Kramper Lake | Dakota | C | 4.5 ft | 46.3 µg/L | 13.3 µg/L |
| 21 | Kirkman'S Cove Lake | Richardson | D | 1.4 ft | 132 µg/L | 20.5 µg/L |
| 22 | Enders Reservoir | Chase | D | 2.8 ft | 56.4 µg/L | 10.3 µg/L |
| 23 | Johnson Lake | Gosper | D | 2.8 ft | 62.3 µg/L | 11.3 µg/L |
| 24 | Harlan County Reservoir | Harlan | D | 2.8 ft | 201 µg/L | 12.6 µg/L |
| 25 | Lake Wanahoo | Saunders | D | 2.4 ft | 92.4 µg/L | 28 µg/L |
| 26 | Prairie Queen Lake | Sarpy | D | 3.3 ft | 42.3 µg/L | 26.2 µg/L |
| 27 | Lake Ogallala | Keith | D | 4.9 ft | 52.2 µg/L | 14.2 µg/L |
| 28 | Maskenthine Reservoir | Stanton | F | 2.1 ft | 151 µg/L | 62.9 µg/L |
| 29 | Lone Star Reservoir | Fillmore | F | 2.1 ft | 740 µg/L | 36.5 µg/L |
| 30 | Willow Creek Reservoir | Sarpy | F | 1.5 ft | 96.7 µg/L | 65.6 µg/L |
| 31 | Summit Lake | Burt | F | 2.6 ft | 104 µg/L | 37.7 µg/L |
| 32 | Rockford Lake | Gage | F | 1.7 ft | 328 µg/L | 35.5 µg/L |
| 33 | Big Indian Lake | Gage | F | 1.5 ft | 255 µg/L | 42.1 µg/L |
| 34 | Hedgefield Lake | Lancaster | F | 1.6 ft | 679.5 µg/L | 46.9 µg/L |
| 35 | Meadowlark Lake | Seward | F | 1.8 ft | 235.5 µg/L | 49.8 µg/L |
| 36 | Burchard Lake | Pawnee | F | 1.9 ft | 114 µg/L | 65.3 µg/L |
| 37 | Wildwood Lake | Lancaster | F | 1.7 ft | 227.5 µg/L | 85.8 µg/L |
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