C
Isanti County Lake Quality
Minnesota — 21 lakes, average grade C (Fair)
All Lakes in Isanti County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Lower Birch Lake | A | 3.3m | 15 µg/L |
| 2 | Spectacle Lake | A | 4.21m | 11 µg/L |
| 3 | Upper Birch Lake | A | 3.3m | 9.5 µg/L |
| 4 | Horseshoe Lake | B | 1.09m | 12 µg/L |
| 5 | Hoffman Lake | B | 1.24m | 15 µg/L |
| 6 | Horseleg Lake | B | 1.14m | 17 µg/L |
| 7 | Fannie Lake | C | 2.13m | 37 µg/L |
| 8 | Elms Lake | C | 2.1m | 53 µg/L |
| 9 | Florence Lake | C | 2.74m | — |
| 10 | Blue Lake | C | 2.74m | 46 µg/L |
| 11 | Blue Lake | C | 2.13m | 48 µg/L |
| 12 | Skogman Lake | C | 1.65m | 31 µg/L |
| 13 | Green Lake | C | 1.54m | 44 µg/L |
| 14 | Lory Lake | C | 1.83m | 41 µg/L |
| 15 | Francis Lake | D | 0.61m | 62 µg/L |
| 16 | Twin Lake | D | 0.8m | 110 µg/L |
| 17 | Little Stanchfield Lake | D | 1.07m | 132 µg/L |
| 18 | Typo Lake | F | 0.3m | 198 µg/L |
| 19 | Krans Lake | F | 0.49m | — |
| 20 | North Stanchfield Lake | F | 0.84m | 171 µg/L |
| 21 | South Stanchfield Lake | F | 0.76m | 119 µg/L |