La Matapédia County, Québec · Water Quality Report Card
Lac Michaud
Lac Michaud in La Matapédia, Québec received a water quality grade of C (Fair). Water clarity: 1.6 m visibility. Phosphorus: 19.9 µg/L. Chlorophyll-a (algae): 13.4 µg/L.
- Clarity
- 1.6 m
- Type
- Eutrophic
Lac Michaud is a productive, nutrient-rich eutrophic lake in La Matapédia County, Québec. Water quality is graded C based on 3 sampling years through 2025. Compared to the 13 other monitored lakes in La Matapédia County, Lac Michaud ranks #14 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
Murky, only visible to about 5.2 ft. Phosphorus level: 19.9 µg/L. Chlorophyll-a: 13.4 µg/L. Trophic State Index: 52.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.6 m | D |
| Phosphorus | 19.9 µg/L | A |
| Chlorophyll-a (Algae) | 13.4 µg/L | C |
| Trophic State Index (TSI) | 52 | Eutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Lac Michaud
Location
County Ranking
Ranked #14 of 14 lakes in La Matapédia
Cleaner Lakes Within 30 Miles
Lac Michaud holds Grade C. 5 nearby lakes hold higher grades.
- ALac du QuinzièMe MilleLa Matapédia · 5.9 mi · Two grade letters higher (C → A)
- ALac MatapéDiaLa Matapédia · 10.7 mi · Two grade letters higher (C → A)
- ALac TowagoLa Matanie · 11.8 mi · Two grade letters higher (C → A)
- ALac Saint-PierreLa Matapédia · 12.8 mi · Two grade letters higher (C → A)
- ALac du PortageLa Matanie · 11.1 mi · Two grade letters higher (C → A)
Nearby Lakes in La Matapédia
Explore Lac Michaud 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 Michaud 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: