Le Fjord-du-Saguenay County, Québec · Water Quality Report Card
Lac des Copains
Lac des Copains in Le Fjord-du-Saguenay, Québec received a water quality grade of B (Good). Water clarity: 2.3 m visibility. Phosphorus: 6.1 µg/L. Chlorophyll-a (algae): 3.3 µg/L.
- Clarity
- 2.3 m
- Type
- Mesotrophic
Lac des Copains is a mesotrophic lake in Le Fjord-du-Saguenay County, Québec. Water quality is graded B based on 3 sampling years through 2020. Compared to the 22 other monitored lakes in Le Fjord-du-Saguenay County, Lac des Copains ranks #13 for water quality.
Source: EPA Water Quality Portal sampling records, MELCCFP, last sampled 2020-08-01. 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 7.4 ft. Phosphorus level: 6.1 µg/L. Chlorophyll-a: 3.3 µg/L. Trophic State Index: 40.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.25 m | C |
| Phosphorus | 6.1 µg/L | A |
| Chlorophyll-a (Algae) | 3.3 µg/L | A |
| Trophic State Index (TSI) | 40 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lac des Copains
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Fishing Lac des Copains
Location
County Ranking
Ranked #13 of 23 lakes in Le Fjord-du-Saguenay
Cleaner Lakes Within 30 Miles
Lac des Copains holds Grade B. 5 nearby lakes hold higher grades.
- ALac LimonyLe Fjord-du-Saguenay · 0.8 mi · Higher grade (B → A)
- ALac EmmurailléLe Fjord-du-Saguenay · 2 mi · Higher grade (B → A)
- ALac ClairLe Fjord-du-Saguenay · 2.7 mi · Higher grade (B → A)
- APetit Lac ClairLe Fjord-du-Saguenay · 0.9 mi · Higher grade (B → A)
- ALac MungerLe Fjord-du-Saguenay · 2.9 mi · Higher grade (B → A)
Nearby Lakes in Le Fjord-du-Saguenay
Explore Lac des Copains 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 des Copains 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: 2020-08-01
Monitoring stations: