A
Ashland County Lake Quality
Wisconsin — 21 lakes, average grade A (Excellent)
All Lakes in Ashland County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Lake Galilee - | A | 8.5m | 16.8 µg/L |
| 2 | Lake Superior Ngl20_wi | A | 27.9m | 4.7 µg/L |
| 3 | Lake Superior Ngl20_wi | A | 25.1m | 4.5 µg/L |
| 4 | Lake Superior Ngl20_wi | A | 22m | 2.2 µg/L |
| 5 | Lake Superior Ngl20_wi | A | 16.1m | 4.2 µg/L |
| 6 | Gates Lake | A | — | 16 µg/L |
| 7 | Lake Superior Ngl20_wi | A | 13.2m | 5.6 µg/L |
| 8 | Lake Superior Ngl20_wi | A | 24.6m | 3.3 µg/L |
| 9 | Lake Superior Ngl20_wi | A | 22.6m | 2.1 µg/L |
| 10 | Lake Superior Ngl20_wi | A | 30.5m | 5 µg/L |
| 11 | Tea Lake | A | — | 18.8 µg/L |
| 12 | Nc Cheq Bay Site 1 Lake | A | — | 8.3 µg/L |
| 13 | Lake Superior | A | — | 11.1 µg/L |
| 14 | Ngl25_wi-30040 Lake | A | — | 17 µg/L |
| 15 | Ngl25_wi-30035 Lake | A | — | 3.6 µg/L |
| 16 | Ls94-106322 Lake | A | — | — |
| 17 | Su20b Lake | A | — | — |
| 18 | Csmi 2021 Station Med-069 Lake | A | — | — |
| 19 | Augustine Lake - | B | 4.25m | — |
| 20 | Mineral Lake - | B | 4.25m | 28.2 µg/L |
| 21 | Meder Lake - | B | 3.64m | — |