Cleanest Lakes in Nebraska
Nla Lake in Morrill County leads the rankings with a water quality grade of A. Below are the top 50 cleanest monitored lakes in Nebraska, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Nla Lake | Morrill | A | - | 21.2 µg/L | 0.9 µg/L |
| 2 | Qacnelakefbk | Douglas | A | - | 11 µg/L | 3 µg/L |
| 3 | Lake Minatare | Scotts Bluff | B | 5.4 ft | 52.4 µg/L | 2.8 µg/L |
| 4 | Hershey Lake | Lincoln | B | 13.6 ft | 51.4 µg/L | 2.1 µg/L |
| 5 | Nla Lake | Dawes | B | 11.8 ft | 35.1 µg/L | 6.1 µg/L |
| 6 | Lake C W Mcconaughy | Keith | B | 7.2 ft | 56.6 µg/L | 5.3 µg/L |
| 7 | Box Butte Reservoir | Dawes | B | 5.6 ft | 51.5 µg/L | 4.5 µg/L |
| 8 | Enders Reservoir | Chase | C | 2.8 ft | 56.4 µg/L | 10.4 µg/L |
| 9 | Cub Creek Lake | Keya Paha | C | 4.9 ft | 48.1 µg/L | 8.4 µg/L |
| 10 | Nla Lake | Holt | C | 2.7 ft | 48051.7 µg/L | 2.7 µg/L |
| 11 | Lake Maloney | Lincoln | C | 2.1 ft | 47.8 µg/L | 10.1 µg/L |
| 12 | Kramper Lake | Dakota | C | 4.5 ft | 46.3 µg/L | 13.3 µg/L |
| 13 | Hugh Butler Lake | Frontier | C | 2.8 ft | 82.9 µg/L | 5.9 µg/L |
| 14 | Lake Ogallala | Keith | C | 4.9 ft | 52.2 µg/L | 14.2 µg/L |
| 15 | Johnson Lake | Gosper | C | 2.8 ft | 62.3 µg/L | 11.3 µg/L |
| 16 | Nla Lake | Saunders | C | 1.9 ft | 47.4 µg/L | 23.1 µg/L |
| 17 | Nla Lake | Sherman | C | 1.4 ft | 120521.2 µg/L | 6.5 µg/L |
| 18 | Nla Lake | Gage | C | 0.3 ft | 697000 µg/L | 5.3 µg/L |
| 19 | Nla Lake | Saunders | C | 1.7 ft | 47.8 µg/L | 29.3 µg/L |
| 20 | Nla Lake | Jefferson | C | 0 ft | 1365 µg/L | 3.5 µg/L |
| 21 | Nla Lake | Garden | C | - | 71.3 µg/L | 9 µg/L |
| 22 | Sherman Reservoir | Sherman | C | 2.4 ft | 100 µg/L | 4.4 µg/L |
| 23 | Harry Strunk Lake | Frontier | C | 2.5 ft | 67.6 µg/L | 9.8 µg/L |
| 24 | Oliver Reservoir | Kimball | C | 1.7 ft | 71.9 µg/L | 7.9 µg/L |
| 25 | Swanson Reservoir | Hitchcock | C | 2.6 ft | 90 µg/L | 7.1 µg/L |
| 26 | Prairie Queen Lake | Sarpy | C | 3.3 ft | 42.3 µg/L | 26.2 µg/L |
| 27 | Nla Lake | Lincoln | D | 2.1 ft | 59000 µg/L | 10.6 µg/L |
| 28 | Nla Lake | Scotts Bluff | D | 3.1 ft | 40518.4 µg/L | 12.8 µg/L |
| 29 | Nla Lake | Cherry | D | 4.6 ft | 64030.9 µg/L | 7.4 µg/L |
| 30 | Nla Lake | Buffalo | D | 4.1 ft | 83.7 µg/L | 25.9 µg/L |
| 31 | Nla Lake | Dawson | D | 2.2 ft | 95.7 µg/L | 21.6 µg/L |
| 32 | Harlan County Reservoir | Harlan | D | 2.8 ft | 201 µg/L | 12.6 µg/L |
| 33 | Jenny Newman Lake | Cass | D | 5.4 ft | 72.1 µg/L | 20.2 µg/L |
| 34 | Lake Wanahoo | Saunders | D | 2.4 ft | 95.3 µg/L | 27.1 µg/L |
| 35 | Calamus Reservoir | Garfield | D | 3.6 ft | 124.5 µg/L | 26.1 µg/L |
| 36 | Kirkman'S Cove Lake | Richardson | D | 1.4 ft | 132 µg/L | 20.5 µg/L |
| 37 | Nla Lake | Frontier | D | 0.8 ft | 310000 µg/L | 33 µg/L |
| 38 | Nla Lake | Sheridan | D | 1.4 ft | 566000 µg/L | 24.1 µg/L |
| 39 | Nla Lake | Harlan | D | 1.6 ft | 109631.9 µg/L | 23.5 µg/L |
| 40 | Nla Lake | Garden | D | 1.1 ft | 138573.9 µg/L | 28 µg/L |
| 41 | Nla Lake | Dawson | D | 3.1 ft | 104000 µg/L | 26.5 µg/L |
| 42 | Nla Lake | Seward | D | 2.7 ft | 89.1 µg/L | 50.4 µg/L |
| 43 | Nla Lake | Polk | D | 0.2 ft | 1035.7 µg/L | 25.8 µg/L |
| 44 | Nla Lake | Lincoln | D | 2.7 ft | 120.1 µg/L | 22.2 µg/L |
| 45 | Lone Star Reservoir | Fillmore | D | 2.1 ft | 885 µg/L | 36.5 µg/L |
| 46 | Willow Creek Reservoir | Sarpy | D | 1.5 ft | 96.7 µg/L | 66.4 µg/L |
| 47 | Summit Lake | Burt | D | 2.6 ft | 104 µg/L | 38.4 µg/L |
| 48 | Rockford Lake | Gage | D | 1.7 ft | 328 µg/L | 37.9 µg/L |
| 49 | Grove Lake | Antelope | D | 2.1 ft | 91.3 µg/L | 84.8 µg/L |
| 50 | Goose Lake | Holt | D | 1 ft | 170 µg/L | 32.6 µg/L |