Lac Rose
Bécancour, QuébecView mapDirections
This is MELCCFP's own trophic classification for 2023, not a LakeQuality grade. See every year
- 40 ft max depth
Lac Rose in Bécancour, Québec is classified classe hyper-eutrophe by Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (Québec) for 2023. Water clarity: 1.1 m visibility. Phosphorus: 34.9 µg/L. Chlorophyll-a (algae): 16.6 µg/L.
Lac Rose is a lake in Bécancour County, Québec with an estimated average depth of about 40 feet.
Source: Québec RSVL (MELCCFP) — not the EPA Water Quality Portal, last sampled 2023-08-01. Methodology: how these readings are compared.
Swimming conditions
No readingAlgae risk
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lac Rose 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 Rose
These are the measurements MELCCFP publishes for Lac Rose, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 3.6 ft. Phosphorus 34.9 µg/L. Chlorophyll-a 16.6 µg/L.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1.1m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 34.9µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 16.6µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
Ask about Lac Rose
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~12.2 m est.
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Québec has not published bathymetry for Lac Rose.
Lake Size & Watershed
Watershed (drainage) area
1 sq mi
HydroLAKES / HydroSHEDS
Surface area
94 acres
HydroLAKES / HydroSHEDS
Shoreline
1.7 mi
HydroLAKES / HydroSHEDS
Elevation
272 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
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Frequently asked questions about Lac Rose
Where is Lac Rose?
- Lac Rose is a lake in Bécancour, Québec. MELCCFP classifies it classe hyper-eutrophe for 2023. This is MELCCFP's own trophic classification for 2023, not a LakeQuality grade.
What is the water quality of Lac Rose?
- Lac Rose in Bécancour, Québec is classified classe hyper-eutrophe by Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (Québec) for 2023. Water clarity: 1.1 m visibility. Phosphorus: 34.9 µg/L. Chlorophyll-a (algae): 16.6 µg/L.
Is Lac Rose safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Lac Rose?
- No published bathymetric survey covers Lac Rose, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 40 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
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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 Rose. 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 2023, 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 (20 classified 2012–2023)
| Year | Published class |
|---|---|
| 2022 | classe eutrophe |
| 2021 | classe eutrophe |
| 2020 | classe eutrophe |
| 2019 | classe hyper-eutrophe |
| 2018 | classe hyper-eutrophe |
| 2017 | classe eutrophe |
| 2016 | zone de transition méso-eutrophe |
| 2015 | classe eutrophe |
| 2014 | classe hyper-eutrophe |
| 2013 | classe eutrophe |
| 2012 | classe eutrophe |
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 Rose 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.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)