Lac Castor
Antoine-Labelle, QuébecView mapDirections
This is MELCCFP's own trophic classification for 2025, not a LakeQuality grade. See every year
Lac Castor in Antoine-Labelle, Québec is classified classe mésotrophe by Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (Québec) for 2025. Water clarity: 3.6 m visibility. Phosphorus: 7.1 µg/L. Chlorophyll-a (algae): 3.2 µg/L.
Stays via Stay22
Stays near Lac Castor
Compare lakeside cabins, hotels, and vacation rentals near Lac Castor in Antoine-Labelle, 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 Castor
Prices for Sep 18–20, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Follow Lac Castor’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Lac Castor is a lake in Antoine-Labelle County, Québec.
Source: Québec RSVL (MELCCFP) — not the EPA Water Quality Portal, last sampled 2025-08-01. Grade methodology: LakeQuality methodology.
What Lac Castor is good for
From access and monitoring records, not editorial picks.
- Clear water11.8 ft of visibility
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lac Castor is safe to swim in today is a call for le Ministère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lac Castor
These are the measurements MELCCFP publishes for Lac Castor, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 11.8 ft. Phosphorus 7.1 µg/L. Chlorophyll-a 3.2 µg/L.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.6 m | Measured, not scored |
| Phosphorus | 7.1 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | 3.2 µg/L | Measured, not scored |
Fishing Lac Castor
Nearby Lakes in Antoine-Labelle
Frequently asked questions about Lac Castor
Ask about Lac Castor
Answers come straight from the public measurements and survey records on this page.
Where is Lac Castor?
- Lac Castor is a lake in Antoine-Labelle, Québec. MELCCFP classifies it classe mésotrophe for 2025. This is MELCCFP's own trophic classification for 2025, not a LakeQuality grade.
What is the water quality of Lac Castor?
- Lac Castor in Antoine-Labelle, Québec is classified classe mésotrophe by Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (Québec) for 2025. Water clarity: 3.6 m visibility. Phosphorus: 7.1 µg/L. Chlorophyll-a (algae): 3.2 µg/L.
Is Lac Castor safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Lac Castor across LakeQuality
More lakes in Québec
Other Lakes in Québec
The authority’s own classification
Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (Québec) publishes its own classification for Lac Castor. It is shown here as theirs, in their words, and is not folded into the LakeQuality letter.
This is MELCCFP's own trophic classification for 2025, not a LakeQuality grade.
A trophic class ranks how nutrient-rich a lake is, from oligotrophic at the low end to eutrophic at the high end. It describes nutrients and plant growth, not bacteria, and it is not a swimming clearance.
Earlier years (9 classified 2017–2025)
| Year | Published class |
|---|---|
| 2024 | classe mésotrophe |
| 2023 | classe oligotrophe |
| 2022 | zone de transition oligo-mésotrophe |
| 2021 | classe mésotrophe |
| 2020 | zone de transition oligo-mésotrophe |
| 2019 | zone de transition oligo-mésotrophe |
| 2018 | zone de transition oligo-mésotrophe |
| 2017 | classe mésotrophe |
Published by Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (Québec). A classification is not a same-day swimming clearance. See data sources.
Where this data comes from
Measurements for Lac Castor come from the Réseau de surveillance volontaire des lacs (RSVL), not the EPA Water Quality Portal. Per-sample source details are not recorded for this lake. MELCCFP RSVL (CC BY 4.0). See data sources.