Matawinie County, Québec · Water Quality Report Card
Lac à Lunettes
Lac à Lunettes in Matawinie, Québec received a water quality grade of B (Good). Water clarity: 2.5 m visibility. Phosphorus: 11.2 µg/L. Chlorophyll-a (algae): 5.5 µg/L.
- Clarity
- 2.5 m
- Type
- Mesotrophic
Lac à Lunettes is a mesotrophic lake in Matawinie County, Québec. Water quality is graded B based on 3 sampling years through 2025. Compared to the 111 other monitored lakes in Matawinie County, Lac à Lunettes ranks #99 for water quality.
Source: EPA Water Quality Portal sampling records, MELCCFP, last sampled 2025-08-01. Grade methodology: LakeGrade methodology.
Watch Lac à Lunettes 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 8.2 ft. Phosphorus level: 11.2 µg/L. Chlorophyll-a: 5.5 µg/L. Trophic State Index: 44.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.5 m | C |
| Phosphorus | 11.2 µg/L | A |
| Chlorophyll-a (Algae) | 5.5 µg/L | B |
| Trophic State Index (TSI) | 44 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lac à Lunettes
Compare lakeside cabins, hotels, and vacation rentals near Lac à Lunettes in Matawinie, 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 à Lunettes
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 à Lunettes?
Get lake water-quality report cards plus the best cabin & lodging deals near Lac à Lunettes — straight to your inbox. No spam, unsubscribe anytime.
Fishing Lac à Lunettes
Location
County Ranking
Ranked #99 of 112 lakes in Matawinie
Cleaner Lakes Within 30 Miles
Lac à Lunettes holds Grade B. 5 nearby lakes hold higher grades.
- ALac BeaulacMatawinie · 2.6 mi · Higher grade (B → A)
- ALac MooneyMatawinie · 2.7 mi · Higher grade (B → A)
- ALac AshtonLes Pays-d'en-Haut · 3.8 mi · Higher grade (B → A)
- BLac BeaulneMatawinie · 3.1 mi · Higher overall water quality score
- BLac DuffyMontcalm · 4 mi · Higher overall water quality score
Nearby Lakes in Matawinie
Explore Lac à Lunettes 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 à Lunettes 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: