Les Appalaches County, Québec · Water Quality Report Card
Lac Rond
Lac Rond in Les Appalaches, Québec received a water quality grade of C (Fair). Water clarity: 1 m visibility. Phosphorus: 21.3 µg/L. Chlorophyll-a (algae): 9.9 µg/L.
- Clarity
- 1 m
- Type
- Eutrophic
Lac Rond is a productive, nutrient-rich eutrophic lake in Les Appalaches County, Québec. Water quality is graded C based on 3 sampling years through 2025. Compared to the 11 other monitored lakes in Les Appalaches County, Lac Rond ranks #9 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
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Very murky, less than 3.3 ft of visibility. Phosphorus level: 21.3 µg/L. Chlorophyll-a: 9.9 µg/L. Trophic State Index: 54.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1 m | F |
| Phosphorus | 21.3 µg/L | B |
| Chlorophyll-a (Algae) | 9.9 µg/L | B |
| Trophic State Index (TSI) | 54 | Eutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Lac Rond
Location
County Ranking
Ranked #9 of 12 lakes in Les Appalaches
Cleaner Lakes Within 30 Miles
Lac Rond holds Grade C. 5 nearby lakes hold higher grades.
- BLac à la TruiteLes Appalaches · 3.8 mi · Higher grade (C → B)
- BLac de L'EstLes Appalaches · 9.7 mi · Higher grade (C → B)
- BPetit Lac Saint-FrançOisLes Appalaches · 2.2 mi · Higher grade (C → B)
- BLac CaribouLes Appalaches · 3.7 mi · Higher grade (C → B)
- BLac du HuitLes Appalaches · 5.8 mi · Higher grade (C → B)
Nearby Lakes in Les Appalaches
Explore Lac Rond across LakeGrade
More Québec Lake Rankings
Other Grade C Lakes in Québec
Eutrophic Lakes in Québec
More records, surveys & data sources
Where this data comes from
Measurements for Lac Rond 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: