C
Polk County Lake Quality
Minnesota — 22 lakes, average grade C (Fair)
All Lakes in Polk County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Union Lake | A | 4.42m | 14 µg/L |
| 2 | Cable Lake | B | 3.1m | 20 µg/L |
| 3 | Sand Hill Lake | B | 2.1m | 26 µg/L |
| 4 | Poplar Lake | B | 2.7m | 23 µg/L |
| 5 | Badger Lake | B | 2.05m | 27 µg/L |
| 6 | Sarah Lake | B | 2.4m | 29.5 µg/L |
| 7 | Kittleson Lake | B | 2.15m | 26 µg/L |
| 8 | Spring Lake | C | 1.5m | 27.5 µg/L |
| 9 | Whitefish Lake | C | 1.25m | 42.5 µg/L |
| 10 | Unnamed Lake | C | 1.3m | 38 µg/L |
| 11 | Maple Lake | C | 1.1m | 37 µg/L |
| 12 | Turtle Lake | C | 1.1m | 56.5 µg/L |
| 13 | Uff Lake | C | 1.2m | 35 µg/L |
| 14 | Unnamed Lake | D | 2.1m | 95 µg/L |
| 15 | Maple Lake | D | 1m | 40 µg/L |
| 16 | Cross Lake | D | 0.9m | 57 µg/L |
| 17 | Store Lake | D | 2.1m | 193 µg/L |
| 18 | Halverson Lake | D | 0.9m | 51 µg/L |
| 19 | Unnamed Lake | D | 0.7m | 71 µg/L |
| 20 | Hill River Lake | D | 1.4m | 95 µg/L |
| 21 | Oak Lake | F | 0.9m | 144 µg/L |
| 22 | Cameron Lake | F | 0.3m | 133 µg/L |