Les Laurentides County, Québec · Water Quality Report Card
Lac Aux Ours
Lac Aux Ours in Les Laurentides, Québec received a water quality grade of C (Fair). Water clarity: 1.4 m visibility. Phosphorus: 12.8 µg/L. Chlorophyll-a (algae): 10.2 µg/L.
- Clarity
- 1.4 m
- Type
- Mesotrophic
Lac Aux Ours is a mesotrophic lake in Les Laurentides County, Québec. Water quality is graded C based on 3 sampling years through 2014. Compared to the 118 other monitored lakes in Les Laurentides County, Lac Aux Ours ranks #117 for water quality.
Source: EPA Water Quality Portal sampling records, MELCCFP, last sampled 2014-08-01. 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 4.6 ft. Phosphorus level: 12.8 µg/L. Chlorophyll-a: 10.2 µg/L. Trophic State Index: 50.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.4 m | D |
| Phosphorus | 12.8 µg/L | A |
| Chlorophyll-a (Algae) | 10.2 µg/L | C |
| Trophic State Index (TSI) | 50 | Mesotrophic |
Moderate nutrients, good water quality
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Fishing Lac Aux Ours
Location
County Ranking
Ranked #117 of 119 lakes in Les Laurentides
Cleaner Lakes Within 30 Miles
Lac Aux Ours holds Grade C. 5 nearby lakes hold higher grades.
- ALac SupéRieurLes Laurentides · 1.1 mi · Two grade letters higher (C → A)
- ALac ÉQuerreLes Laurentides · 1.3 mi · Two grade letters higher (C → A)
- ALac GauthierLes Laurentides · 2.3 mi · Two grade letters higher (C → A)
- ALac CarréLes Laurentides · 4.7 mi · Two grade letters higher (C → A)
- ALac LauzonLes Laurentides · 2.1 mi · Two grade letters higher (C → A)
Nearby Lakes in Les Laurentides
Explore Lac Aux Ours across LakeGrade
More Québec Lake Rankings
Other Grade C Lakes in Québec
Mesotrophic Lakes in Québec
More records, surveys & data sources
Where this data comes from
Measurements for Lac Aux Ours 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: 2014-08-01
Monitoring stations: