Antoine-Labelle County Lake Quality
Québec, 69 lakes, average grade A (Excellent)
Antoine-Labelle County has 69 graded lakes, enough that within-county variation matters as much as the county average. Some are deep glacial basins, others are shallow agricultural-watershed waters, and the grade distribution reflects that mix. The county's average grade is A — among the cleanest in Québec. 56 lakes pull an A on their own, and almost none fall into the D or F brackets.
The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is Lac des Cornes (A); the most-stressed is Petit Lac Noir (C).
Quick Answers for Antoine-Labelle County
Planning a trip? Check special fishing regulations for Lac des Cornes — or check the official Québec fishing regulations.
All Lakes in Antoine-Labelle County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Lac des Cornes | A | 20.7 ft | 3 µg/L |
| 2 | Lac PéRodeau | A | 22.3 ft | 3.1 µg/L |
| 3 | Lac Lesage | A | 22.3 ft | 3.9 µg/L |
| 4 | Petit Lac du Cerf | A | 22.3 ft | 3.1 µg/L |
| 5 | Grand Lac du Cerf | A | 22.3 ft | 3.5 µg/L |
| 6 | Lac David | A | 17.1 ft | 5.2 µg/L |
| 7 | Lac Pope | A | 15.3 ft | 5.4 µg/L |
| 8 | Lac Vert | A | - | 6.8 µg/L |
| 9 | Lac Serpent | A | 15.9 ft | 4.5 µg/L |
| 10 | Lac Bigelow | A | 24 ft | 2.9 µg/L |
| 11 | Lac Marie-Louise | A | 19.7 ft | 3.7 µg/L |
| 12 | Lac Blanc | A | 20.8 ft | 4.2 µg/L |
| 13 | Lac Gauvin | A | 15.9 ft | 5.9 µg/L |
| 14 | Lac Marsan | A | 15.7 ft | 4.9 µg/L |
| 15 | Lac la Minerve | A | 18 ft | 4.4 µg/L |
| 16 | Lac de L'Aigle | A | 17.7 ft | 4.8 µg/L |
| 17 | Lac Aux Bouleaux | A | 20.5 ft | 5.4 µg/L |
| 18 | Lac O'Neil | A | 15.9 ft | 4.5 µg/L |
| 19 | Lac Quinn | A | 19 ft | 4.5 µg/L |
| 20 | Lac Mitchell | A | 19.4 ft | 3.1 µg/L |
| 21 | Lac Mallonne | A | 17.1 ft | 8.1 µg/L |
| 22 | Lac à la Truite | A | 18.7 ft | 4.4 µg/L |
| 23 | Lac Rochon | A | 18.7 ft | 4.3 µg/L |
| 24 | Lac Earhart | A | 17.4 ft | 4.5 µg/L |
| 25 | Lac Mousseau | A | 19.7 ft | - |
| 26 | Lac Major | A | 16.1 ft | - |
| 27 | Lac Vaillant | A | 10.8 ft | 7.3 µg/L |
| 28 | Lac des ÎLes | A | 14.8 ft | 7.2 µg/L |
| 29 | Lac Chaud | A | 11.8 ft | 5.7 µg/L |
| 30 | Petit Lac Nominingue | A | 12.8 ft | 6.2 µg/L |
| 31 | Lac Caché | A | 11.5 ft | 5.8 µg/L |
| 32 | Lac des Grandes Baies | A | 13.5 ft | 4.4 µg/L |
| 33 | Lac FrançOis | A | 10.2 ft | 6.9 µg/L |
| 34 | Petit Lac FrançOis | A | 10.2 ft | 7 µg/L |
| 35 | Grand Lac Nominingue | A | 12.5 ft | 5.9 µg/L |
| 36 | Lac Lynch | A | 10.5 ft | 5.9 µg/L |
| 37 | Lac Aux Poissons | A | 12.1 ft | 5.5 µg/L |
| 38 | Lac Lacoste | A | 13.3 ft | 6.6 µg/L |
| 39 | Lac Lanthier | A | 11.5 ft | 7.4 µg/L |
| 40 | Lac Gravel | A | 14.1 ft | 5.4 µg/L |
| 41 | Lac Saint-Paul | A | 14.4 ft | 7.9 µg/L |
| 42 | Lac Lefebvre | A | 14.6 ft | 7 µg/L |
| 43 | Lac Long | A | 12.1 ft | 10 µg/L |
| 44 | Lac Saguay | A | 13.1 ft | 6.2 µg/L |
| 45 | Lac de la Haie | A | 10.2 ft | 7.5 µg/L |
| 46 | Lac Allard | A | 12 ft | 5.9 µg/L |
| 47 | Lac du Corbeau | A | 12.6 ft | 4.2 µg/L |
| 48 | Lac Boileau | A | 10.2 ft | 5.3 µg/L |
| 49 | Lac Clair | A | 13.1 ft | 5.7 µg/L |
| 50 | Lac Aux Bois Francs | A | 12.8 ft | 7.7 µg/L |
| 51 | Lac Castor | A | 11.8 ft | 7.1 µg/L |
| 52 | RéServoir Kiamika | A | 13.5 ft | 5.2 µg/L |
| 53 | Lac du Gros Brochet | A | 12.3 ft | 7.5 µg/L |
| 54 | Lac Forgeron | A | 10.5 ft | 8.7 µg/L |
| 55 | Lac des ÉCorces | A | 12.1 ft | 8 µg/L |
| 56 | Lac Tapani | A | 10.5 ft | 8.9 µg/L |
| 57 | Lac Francis | B | 8.9 ft | 8.3 µg/L |
| 58 | Lac GuéRin | B | 6.9 ft | 9.4 µg/L |
| 59 | Lac Mccaskill | B | 9.4 ft | 8.6 µg/L |
| 60 | Lac du Club | B | 9.2 ft | 8.2 µg/L |
| 61 | Lac Louvigny | B | 9.8 ft | 8.4 µg/L |
| 62 | Lac Sainte-Marie | B | 6.9 ft | 11.9 µg/L |
| 63 | Lac Saint-Joseph | B | 6.9 ft | 9.8 µg/L |
| 64 | Lac des Journalistes | B | 7.9 ft | 12.1 µg/L |
| 65 | Lac Chaudron | B | 8.2 ft | 12.1 µg/L |
| 66 | Lac Blanc | B | 6.4 ft | 9.1 µg/L |
| 67 | Lac Paquet | B | 6.6 ft | 12.8 µg/L |
| 68 | Petit Lac Noir | C | 5.2 ft | 11.9 µg/L |
| 69 | Lac Ouellette | C | 6.4 ft | 14.9 µg/L |
Other Counties in Québec
See how Antoine-Labelle County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 38 states.
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Source: EPA National Aquatic Resource Surveys, 2026.