Rouville County, Québec · Water Quality Report Card
Lac Bleu
Lac Bleu in Rouville, Québec received a water quality grade of F (Very Poor). Water clarity: 0.4 m visibility. Phosphorus: 165 µg/L. Chlorophyll-a (algae): 82.4 µg/L.
- Clarity
- 0.4 m
- Type
- Hypereutrophic
Lac Bleu is a highly nutrient-loaded hypereutrophic lake in Rouville County, Québec. Water quality is graded F based on 3 sampling years through 2010.
Source: EPA Water Quality Portal sampling records, MELCCFP, last sampled 2010-08-01. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 1.1 ft of visibility. Phosphorus level: 165 µg/L. Chlorophyll-a: 82.4 µg/L. Trophic State Index: 76.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.35 m | F |
| Phosphorus | 165 µg/L | F |
| Chlorophyll-a (Algae) | 82.4 µg/L | F |
| Trophic State Index (TSI) | 76 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
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Fishing Lac Bleu
Location
County Ranking
Ranked #1 of 1 lakes in Rouville
Cleaner Lakes Within 30 Miles
Lac Bleu holds Grade F. 5 nearby lakes hold higher grades.
- ALac GaleBrome-Missisquoi · 12.9 mi · Two grade letters higher (F → A)
- BLac BromontBrome-Missisquoi · 13.9 mi · Two grade letters higher (F → B)
- BLac SelbyBrome-Missisquoi · 19.3 mi · Two grade letters higher (F → B)
- BLac DavignonBrome-Missisquoi · 14.5 mi · Two grade letters higher (F → B)
- CLac BoivinLa Haute-Yamaska · 10.7 mi · Two grade letters higher (F → C)
Nearby Lakes in Rouville
Explore Lac Bleu across LakeGrade
More Québec Lake Rankings
Other Grade F Lakes in Québec
Hypereutrophic Lakes in Québec
More records, surveys & data sources
Where this data comes from
Measurements for Lac Bleu 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: