Mauricie County Lake Quality
Québec, 8 lakes, average grade A (Excellent)
Only 8 lakes in Mauricie 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. On average, Mauricie County lakes grade an A. That puts it near the top of the Québec county ranking.
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 Mondor (A); the most-stressed is Lac Lamarre (B).
Quick Answers for Mauricie County
Planning a trip? Check special fishing regulations for Lac Mondor — or check the official Québec fishing regulations.
All Lakes in Mauricie County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Lac Mondor | A | 15.4 ft | 8.4 µg/L |
| 2 | Lac Alphonse | A | 17.4 ft | 3.5 µg/L |
| 3 | Lac Vincent | A | 17.7 ft | 5 µg/L |
| 4 | Lac à la Tortue | A | 10.5 ft | 11.6 µg/L |
| 5 | Lac Caron | A | 12.3 ft | 7.9 µg/L |
| 6 | Lac à la Perchaude | A | 10 ft | 7.1 µg/L |
| 7 | Lac ChréTien | A | 13.5 ft | 5.6 µg/L |
| 8 | Lac Lamarre | B | 9.8 ft | 7.6 µg/L |
Other Counties in Québec
See how Mauricie County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 38 states.
Where to stay near Mauricie County
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Source: EPA National Aquatic Resource Surveys, 2026.