Les Etchemins County Lake Quality
Québec, 7 lakes, average grade B (Good)
Only 7 lakes in Les Etchemins County carry an active grade. The county-level summary is therefore representative of those specific lakes, not necessarily of every water body in the county. The county-wide average lands at B — solid water quality with most lakes carrying clear summer transparency and low-to-moderate phosphorus.
Most of the county's monitored lakes are shallow — under 50 feet — which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed. Lac Etchemin (A) is the cleanest in the county.
Quick Answers for Les Etchemins County
Planning a trip? Check special fishing regulations for Lac Etchemin — or check the official Québec fishing regulations.
All Lakes in Les Etchemins County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Lac Etchemin | A | 10.8 ft | 6.4 µg/L |
| 2 | Lac Chabot | A | 10.3 ft | 7 µg/L |
| 3 | Lac Joli | B | 7.2 ft | 9.4 µg/L |
| 4 | Lac à Pierre | B | 6.2 ft | 9.7 µg/L |
| 5 | Lac Ulric | B | 12.8 ft | - |
| 6 | Lac des AbéNaquis | B | 5.2 ft | 15.5 µg/L |
| 7 | Lac Algonquin | C | 3 ft | 24.8 µg/L |
Other Counties in Québec
See how Les Etchemins 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.