Le Rocher-Percé County, Québec · Water Quality Report Card
Lac Vachon
Lac Vachon in Le Rocher-Percé, Québec received a water quality grade of B (Good). Water clarity: 1.6 m visibility. Phosphorus: 13.8 µg/L. Chlorophyll-a (algae): 3 µg/L.
- Clarity
- 1.6 m
- Type
- Mesotrophic
Lac Vachon is a mesotrophic lake in Le Rocher-Percé County, Québec. Water quality is graded B based on 3 sampling years through 2023. Compared to the 1 other monitored lakes in Le Rocher-Percé County, Lac Vachon ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, MELCCFP, last sampled 2023-08-01. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Murky, only visible to about 5.2 ft. Phosphorus level: 13.8 µg/L. Chlorophyll-a: 3 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.6 m | D |
| Phosphorus | 13.8 µg/L | A |
| Chlorophyll-a (Algae) | 3 µg/L | A |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
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Fishing Lac Vachon
Location
County Ranking
Ranked #2 of 2 lakes in Le Rocher-Percé
Cleaner Lakes Within 30 Miles
Lac Vachon holds Grade B. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Le Rocher-Percé
Explore Lac Vachon 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 Vachon 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: 2023-08-01
Monitoring stations: