Cleanest Lakes in Dakota County, Minnesota
Holland Lake in Dakota County leads the rankings with a water quality grade of A and 27.9 ft of clarity. Below are the top 26 cleanest monitored lakes in Dakota County, Minnesota, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Holland Lake | Dakota | A | 27.9 ft | 20 µg/L | 3.3 µg/L |
| 2 | O'Brien Lake | Dakota | B | 19.7 ft | 21 µg/L | 5.7 µg/L |
| 3 | Schultz Lake | Dakota | B | 8.5 ft | 20 µg/L | 4.8 µg/L |
| 4 | Sunfish Lake | Dakota | B | 11.5 ft | 20 µg/L | - |
| 5 | Unnamed Lake | Dakota | B | 6.9 ft | 25 µg/L | - |
| 6 | Lemay Lake | Dakota | B | 6.9 ft | 27 µg/L | - |
| 7 | Blackhawk Lake | Dakota | B | 6.9 ft | 25 µg/L | - |
| 8 | Carlson Lake | Dakota | B | 8 ft | 26 µg/L | - |
| 9 | Mcdonough Lake | Dakota | C | 9.8 ft | 25 µg/L | 10 µg/L |
| 10 | Jensen Lake | Dakota | C | 5 ft | 23.5 µg/L | 9 µg/L |
| 11 | Fish Lake | Dakota | C | 6.9 ft | 36.5 µg/L | - |
| 12 | Thomas Lake | Dakota | C | 5.6 ft | 25 µg/L | - |
| 13 | Pitts Lake | Dakota | C | 4.9 ft | 43 µg/L | - |
| 14 | East Thomas Lake | Dakota | C | 5.2 ft | 30 µg/L | - |
| 15 | Bald Lake | Dakota | C | 4.9 ft | 44 µg/L | - |
| 16 | Keller Lake | Dakota | C | 4.3 ft | 31.5 µg/L | - |
| 17 | Orchard Lake | Dakota | C | 4.8 ft | 30 µg/L | - |
| 18 | Bur Oaks Pond | Dakota | D | 4.6 ft | 64 µg/L | - |
| 19 | Gerhardt Lake | Dakota | D | 2.5 ft | 43 µg/L | 38 µg/L |
| 20 | Hilltop Pd Lake | Dakota | D | 3.6 ft | 97 µg/L | - |
| 21 | Augusta Lake | Dakota | F | - | 178 µg/L | 160 µg/L |
| 22 | O'Leary Lake | Dakota | F | 2.6 ft | 153 µg/L | - |
| 23 | Unn Pond | Dakota | F | 2 ft | 135 µg/L | - |
| 24 | Mccarthy Lake | Dakota | F | 1 ft | 195 µg/L | - |
| 25 | Quigley Lake | Dakota | F | 2 ft | 141 µg/L | - |
| 26 | Byllesby Lake | Dakota | F | 3 ft | 220 µg/L | - |