Saguenay–Lac-Saint-Jean County Lake Quality
Québec, 2 lakes, average grade B (Good)
Only 2 lakes in Saguenay–Lac-Saint-Jean 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.
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 KéNogami (B); the most-stressed is Lac des Bleuets (C).
Quick Answers for Saguenay–Lac-Saint-Jean County
Planning a trip? Check special fishing regulations for Lac KéNogami — or check the official Québec fishing regulations.
All Lakes in Saguenay–Lac-Saint-Jean County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Lac KéNogami | B | 7.2 ft | 8.6 µg/L |
| 2 | Lac des Bleuets | C | 5.6 ft | 9.3 µg/L |
Other Counties in Québec
See how Saguenay–Lac-Saint-Jean 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.