Montcalm County, Québec · Water Quality Report Card
Lac Mcgill
Lac Mcgill in Montcalm, Québec received a water quality grade of B (Good). Water clarity: 2.1 m visibility. Phosphorus: 9.8 µg/L. Chlorophyll-a (algae): 3 µg/L.
- Clarity
- 2.1 m
- Type
- Mesotrophic
Lac Mcgill is a mesotrophic lake in Montcalm County, Québec. Water quality is graded B based on 3 sampling years through 2005. Compared to the 7 other monitored lakes in Montcalm County, Lac Mcgill ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, MELCCFP, last sampled 2005-08-01. 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 6.9 ft. Phosphorus level: 9.8 µg/L. Chlorophyll-a: 3 µg/L. Trophic State Index: 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.1 m | C |
| Phosphorus | 9.8 µg/L | A |
| Chlorophyll-a (Algae) | 3 µg/L | A |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
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Fishing Lac Mcgill
Location
County Ranking
Ranked #3 of 8 lakes in Montcalm
Cleaner Lakes Within 30 Miles
Lac Mcgill holds Grade B. 3 nearby lakes hold higher grades.
- ALac CristalMontcalm · 6.3 mi · Higher grade (B → A)
- ALac BeaulacMatawinie · 7.7 mi · Higher grade (B → A)
- ALac BobMontcalm · 3.1 mi · Higher grade (B → A)
Nearby Lakes in Montcalm
Explore Lac Mcgill across LakeGrade
More Québec Lake Rankings
Other Grade B Lakes in Québec
Mesotrophic Lakes in Québec
More records, surveys & data sources
Where this data comes from
Measurements for Lac Mcgill 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: 2005-08-01
Monitoring stations: