La Haute-Côte-Nord County, Québec · Water Quality Report Card
Lac Aux Perles
Lac Aux Perles in La Haute-Côte-Nord, Québec received a water quality grade of B (Good). Water clarity: 2.5 m visibility. Phosphorus: 7.2 µg/L. Chlorophyll-a (algae): 2.3 µg/L.
- Clarity
- 2.5 m
- Type
- Oligotrophic
Lac Aux Perles is a cold, clear oligotrophic lake in La Haute-Côte-Nord County, Québec. Water quality is graded B based on 3 sampling years through 2010. Compared to the 13 other monitored lakes in La Haute-Côte-Nord County, Lac Aux Perles ranks #13 for water quality.
Source: EPA Water Quality Portal sampling records, MELCCFP, last sampled 2010-08-01. 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: 7.2 µg/L. Chlorophyll-a: 2.3 µg/L. Trophic State Index: 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.5 m | C |
| Phosphorus | 7.2 µg/L | A |
| Chlorophyll-a (Algae) | 2.3 µg/L | A |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
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Fishing Lac Aux Perles
Location
County Ranking
Ranked #13 of 14 lakes in La Haute-Côte-Nord
Cleaner Lakes Within 30 Miles
Lac Aux Perles holds Grade B. 2 nearby lakes hold higher grades.
- ALac RenardLe Fjord-du-Saguenay · 29 mi · Higher grade (B → A)
- ARéServoir PipmuacanLa Haute-Côte-Nord · 10.7 mi · Higher grade (B → A)
Nearby Lakes in La Haute-Côte-Nord
Explore Lac Aux Perles across LakeGrade
More Québec Lake Rankings
Other Grade B Lakes in Québec
Oligotrophic Lakes in Québec
More records, surveys & data sources
Where this data comes from
Measurements for Lac Aux Perles 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: 2010-08-01
Monitoring stations: