Rimouski-Neigette County, Québec · Water Quality Report Card
Lac à Vaillancourt
Lac à Vaillancourt in Rimouski-Neigette, Québec received a water quality grade of D (Poor). Water clarity: 1.5 m visibility. Phosphorus: 63.7 µg/L. Chlorophyll-a (algae): 56.4 µg/L.
- Clarity
- 1.5 m
- Type
- Eutrophic
Lac à Vaillancourt is a productive, nutrient-rich eutrophic lake in Rimouski-Neigette County, Québec. Water quality is graded D based on 3 sampling years through 2020. Compared to the 11 other monitored lakes in Rimouski-Neigette County, Lac à Vaillancourt ranks #11 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
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Murky, only visible to about 4.9 ft. Phosphorus level: 63.7 µg/L. Chlorophyll-a: 56.4 µg/L. Trophic State Index: 63.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.5 m | D |
| Phosphorus | 63.7 µg/L | D |
| Chlorophyll-a (Algae) | 56.4 µg/L | F |
| Trophic State Index (TSI) | 63 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lac à Vaillancourt
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Fishing Lac à Vaillancourt
Location
County Ranking
Ranked #11 of 12 lakes in Rimouski-Neigette
Cleaner Lakes Within 30 Miles
Lac à Vaillancourt holds Grade D. 5 nearby lakes hold higher grades.
- ALac FerréRimouski-Neigette · 10.6 mi · Two grade letters higher (D → A)
- BLac à la TruiteRimouski-Neigette · 3 mi · Two grade letters higher (D → B)
- BGrand Lac ShawRimouski-Neigette · 7.6 mi · Two grade letters higher (D → B)
- BLac PlourdeRimouski-Neigette · 8.5 mi · Two grade letters higher (D → B)
- BLac NeigetteRimouski-Neigette · 10.6 mi · Two grade letters higher (D → B)
Nearby Lakes in Rimouski-Neigette
Explore Lac à Vaillancourt across LakeGrade
More Québec Lake Rankings
Other Grade D Lakes in Québec
Eutrophic Lakes in Québec
More records, surveys & data sources
Where this data comes from
Measurements for Lac à Vaillancourt 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: