Mékinac County, Québec · Water Quality Report Card
Lac MéKinac
Lac MéKinac in Mékinac, Québec received a water quality grade of B (Good). Water clarity: 2.7 m visibility. Phosphorus: 6.6 µg/L. Chlorophyll-a (algae): 2.4 µg/L.
- Clarity
- 2.7 m
- Type
- Oligotrophic
Lac MéKinac is a cold, clear oligotrophic lake in Mékinac County, Québec. Water quality is graded B based on 3 sampling years through 2025. Compared to the 24 other monitored lakes in Mékinac County, Lac MéKinac ranks #16 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
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 8.9 ft. Phosphorus level: 6.6 µg/L. Chlorophyll-a: 2.4 µg/L. Trophic State Index: 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.7 m | C |
| Phosphorus | 6.6 µg/L | A |
| Chlorophyll-a (Algae) | 2.4 µg/L | A |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Lac MéKinac
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Fishing Lac MéKinac
Location
County Ranking
Ranked #16 of 25 lakes in Mékinac
Cleaner Lakes Within 30 Miles
Lac MéKinac holds Grade B. 5 nearby lakes hold higher grades.
- ALac du MissionnaireMékinac · 9.8 mi · Higher grade (B → A)
- ALac du JéSuiteMékinac · 12.5 mi · Higher grade (B → A)
- ALac du Missionnaire SudMékinac · 13.9 mi · Higher grade (B → A)
- ALac BrûLéMékinac · 16 mi · Higher grade (B → A)
- ALac Aux BrochetsUrban agglomeration of La Tuque · 11 mi · Higher grade (B → A)
Nearby Lakes in Mékinac
Explore Lac MéKinac across LakeGrade
More Québec Lake Rankings
Other Grade B Lakes in Québec
Oligotrophic Lakes in Québec
More records, surveys & data sources
Where this data comes from
Measurements for Lac MéKinac 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: