Mékinac County, Québec · Water Quality Report Card
Lac Noir
Lac Noir in Mékinac, Québec received a water quality grade of B (Good). Water clarity: 3 m visibility. Phosphorus: 5 µg/L. Chlorophyll-a (algae): 2.4 µg/L.
- Clarity
- 3 m
- Type
- Oligotrophic
Lac Noir is a cold, clear oligotrophic lake in Mékinac County, Québec. Water quality is graded B based on 3 sampling years through 2010. Compared to the 24 other monitored lakes in Mékinac County, Lac Noir ranks #17 for water quality.
Source: EPA Water Quality Portal sampling records, MELCCFP, last sampled 2010-08-01. 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 9.8 ft. Phosphorus level: 5 µg/L. Chlorophyll-a: 2.4 µg/L. Trophic State Index: 37.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 m | C |
| Phosphorus | 5 µg/L | A |
| Chlorophyll-a (Algae) | 2.4 µg/L | A |
| Trophic State Index (TSI) | 37 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Lac Noir
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Fishing Lac Noir
Location
County Ranking
Ranked #17 of 25 lakes in Mékinac
Cleaner Lakes Within 30 Miles
Lac Noir holds Grade B. 5 nearby lakes hold higher grades.
- ALac du MissionnaireMékinac · 18.7 mi · Higher grade (B → A)
- ALac du JéSuiteMékinac · 19.9 mi · Higher grade (B → A)
- ALac WayagamacUrban agglomeration of La Tuque · 21.7 mi · Higher grade (B → A)
- ALac Aux BrochetsUrban agglomeration of La Tuque · 13.2 mi · Higher grade (B → A)
- ALac à BeauceUrban agglomeration of La Tuque · 17.4 mi · Higher grade (B → A)
Nearby Lakes in Mékinac
Explore Lac Noir 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 Noir 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: