Manicouagan County, Québec · Water Quality Report Card
Lac Saint-Joseph
Lac Saint-Joseph in Manicouagan, Québec received a water quality grade of B (Good). Water clarity: 2.9 m visibility. Phosphorus: 7.5 µg/L. Chlorophyll-a (algae): 2.6 µg/L.
- Clarity
- 2.9 m
- Type
- Oligotrophic
Lac Saint-Joseph is a cold, clear oligotrophic lake in Manicouagan County, Québec. Water quality is graded B based on 3 sampling years through 2022. Compared to the 16 other monitored lakes in Manicouagan County, Lac Saint-Joseph ranks #8 for water quality.
Source: EPA Water Quality Portal sampling records, MELCCFP, last sampled 2022-08-01. Grade methodology: LakeGrade methodology.
Watch Lac Saint-Joseph water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 9.5 ft. Phosphorus level: 7.5 µg/L. Chlorophyll-a: 2.6 µg/L. Trophic State Index: 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.9 m | C |
| Phosphorus | 7.5 µg/L | A |
| Chlorophyll-a (Algae) | 2.6 µg/L | A |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Lac Saint-Joseph
Compare lakeside cabins, hotels, and vacation rentals near Lac Saint-Joseph in Manicouagan, Québec — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Lac Saint-Joseph
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Lac Saint-Joseph?
Get lake water-quality report cards plus the best cabin & lodging deals near Lac Saint-Joseph — straight to your inbox. No spam, unsubscribe anytime.
Fishing Lac Saint-Joseph
Location
County Ranking
Ranked #8 of 17 lakes in Manicouagan
Cleaner Lakes Within 30 Miles
Lac Saint-Joseph holds Grade B. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Manicouagan
Explore Lac Saint-Joseph 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 Saint-Joseph 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: 2022-08-01
Monitoring stations: