Papineau County, Québec · Water Quality Report Card
Lac Aux Brochets
Lac Aux Brochets in Papineau, Québec received a water quality grade of B (Good). Water clarity: 2.5 m visibility. Phosphorus: 9.3 µg/L. Chlorophyll-a (algae): 4.7 µg/L.
- Clarity
- 2.5 m
- Type
- Mesotrophic
Lac Aux Brochets is a mesotrophic lake in Papineau County, Québec. Water quality is graded B based on 3 sampling years through 2025. Compared to the 32 other monitored lakes in Papineau County, Lac Aux Brochets ranks #33 for water quality.
Source: EPA Water Quality Portal sampling records, MELCCFP, last sampled 2025-08-01. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 8.2 ft. Phosphorus level: 9.3 µg/L. Chlorophyll-a: 4.7 µg/L. Trophic State Index: 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.5 m | C |
| Phosphorus | 9.3 µg/L | A |
| Chlorophyll-a (Algae) | 4.7 µg/L | A |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lac Aux Brochets
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Fishing Lac Aux Brochets
Location
County Ranking
Ranked #33 of 33 lakes in Papineau
Cleaner Lakes Within 30 Miles
Lac Aux Brochets holds Grade B. 5 nearby lakes hold higher grades.
- ALac SmallianPapineau · 7.1 mi · Higher grade (B → A)
- ALac HawkPapineau · 7.9 mi · Higher grade (B → A)
- ALac LadyPapineau · 8.8 mi · Higher grade (B → A)
- ALac de L'OrignalPapineau · 9.2 mi · Higher grade (B → A)
- ALac VertPapineau · 10.6 mi · Higher grade (B → A)
Nearby Lakes in Papineau
Explore Lac Aux Brochets across LakeGrade
More Québec Lake Rankings
Other Grade B Lakes in Québec
Mesotrophic Lakes in Québec
More records, surveys & data sources
Where this data comes from
Measurements for Lac Aux Brochets come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Data Sources
Water quality data from the EPA Water Quality Portal
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2025-08-01
Monitoring stations: