Is Petit Lac de L'Orignal safe to swim in?

Good for swimming, clear water with low algae levels. Petit Lac de L'Orignal has an overall water quality grade of B. Algae concentration (chlorophyll-a) is 4.5 µg/L. Always check local health department advisories before swimming.

Les Laurentides County, Québec · Water Quality Report Card

Petit Lac de L'Orignal

Grade B — Good

Mesotrophic

Petit Lac de L'Orignal in Les Laurentides, Québec received a water quality grade of B (Good). Water clarity: 2.5 m visibility. Phosphorus: 8.6 µg/L. Chlorophyll-a (algae): 4.5 µg/L.

Clarity: 2.5 m
Type: Mesotrophic

Where to stay →Safe to swim?

Petit Lac de L'Orignal is a mesotrophic lake in Les Laurentides County, Québec. Water quality is graded B based on 3 sampling years through 2010. Compared to the 118 other monitored lakes in Les Laurentides County, Petit Lac de L'Orignal ranks #93 for water quality.

Source: EPA Water Quality Portal sampling records, MELCCFP, last sampled 2010-08-01. Grade methodology: LakeGrade methodology.

Watch Petit Lac de L'Orignal 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: 8.6 µg/L. Chlorophyll-a: 4.5 µg/L. Trophic State Index: 42.

Metric	Value	Grade
Water Clarity (Secchi Depth)	2.5 m	C
Phosphorus	8.6 µg/L	A
Chlorophyll-a (Algae)	4.5 µg/L	A
Trophic State Index (TSI)	42	Mesotrophic

Moderate nutrients, good water quality

Where to stay near Petit Lac de L'Orignal

Compare lakeside cabins, hotels, and vacation rentals near Petit Lac de L'Orignal in Les Laurentides, 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 Petit Lac de L'Orignal

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 Petit Lac de L'Orignal?

Get lake water-quality report cards plus the best cabin & lodging deals near Petit Lac de L'Orignal — straight to your inbox. No spam, unsubscribe anytime.

Fishing Petit Lac de L'Orignal

→ Petit Lac de L'Orignal fishing regulations (limits, seasons, special rules)

Location

Loading map…

County Ranking

Ranked #93 of 119 lakes in Les Laurentides

Cleaner Lakes Within 30 Miles

Petit Lac de L'Orignal holds Grade B. 4 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Les Laurentides

Explore Petit Lac de L'Orignal across LakeGrade

Lake Fishing Forecast

Species activity outlook by water temperature and season

Mesotrophic Lakes

Moderate nutrients, good water quality

The State of Québec's Lakes

Québec's cleanest and most-polluted lakes, ranked

More Québec Lake Rankings

Cleanest lakes in Québec

Top 25 by overall water quality score

Clearest lakes in Québec

Top 25 by Secchi water clarity

Best swimming lakes in Québec

Grade A/B + low algae filter

Family fishing lakes in Québec

Panfish-rich, public access

All Québec lakes

Full state directory

Other Grade B Lakes in Québec

Matawinie · 2.3 m

Matawinie · 2.7 m

Matawinie · 1.4 m

Matawinie · 2.3 m

Matawinie · 2.8 m

Matawinie · 3 m

Mesotrophic Lakes in Québec

Lac Léon Lac ÉLan Lac Major Lac des Trois FrèRes

More records, surveys & data sources

Where this data comes from

Measurements for Petit Lac de L'Orignal 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: 2010-08-01

Monitoring stations:

Where to stay near Petit Lac de L'Orignal →