Urban agglomeration of La Tuque County, Québec · Water Quality Report Card
Lac Chat
Lac Chat in Urban agglomeration of La Tuque, Québec received a water quality grade of B (Good). Water clarity: 2.2 m visibility. Phosphorus: 7.8 µg/L. Chlorophyll-a (algae): 4.6 µg/L.
- Clarity
- 2.2 m
- Type
- Mesotrophic
Lac Chat is a mesotrophic lake in Urban agglomeration of La Tuque County, Québec. Water quality is graded B based on 3 sampling years through 2025. Compared to the 7 other monitored lakes in Urban agglomeration of La Tuque County, Lac Chat ranks #6 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 7.2 ft. Phosphorus level: 7.8 µg/L. Chlorophyll-a: 4.6 µg/L. Trophic State Index: 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.2 m | C |
| Phosphorus | 7.8 µg/L | A |
| Chlorophyll-a (Algae) | 4.6 µg/L | A |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lac Chat
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Fishing Lac Chat
Location
County Ranking
Ranked #6 of 8 lakes in Urban agglomeration of La Tuque
Cleaner Lakes Within 30 Miles
Lac Chat holds Grade B. 4 nearby lakes hold higher grades.
- ALac WayagamacUrban agglomeration of La Tuque · 14.1 mi · Higher grade (B → A)
- ALac du MissionnaireMékinac · 16.2 mi · Higher grade (B → A)
- ALac Aux BrochetsUrban agglomeration of La Tuque · 3.9 mi · Higher grade (B → A)
- ALac à BeauceUrban agglomeration of La Tuque · 12.5 mi · Higher grade (B → A)
Nearby Lakes in Urban agglomeration of La Tuque
Explore Lac Chat 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 Chat 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: