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LakeQuality

Lac des Bouleaux

Urban agglomeration of Longueuil, QuébecView mapDirections

zone de transition oligo-mésotrophe

This is MELCCFP's own trophic classification for 2025, not a LakeQuality grade. See every year

Clarity
4.7 m
Secchi · sampled 2025
Phosphorus
10.6 µg/L
Measured by MELCCFP
Chlorophyll-a
3 µg/L
Measured by MELCCFP

Lac des Bouleaux in Urban agglomeration of Longueuil, Québec is classified zone de transition oligo-mésotrophe by Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (Québec) for 2025. Water clarity: 4.7 m visibility. Phosphorus: 10.6 µg/L. Chlorophyll-a (algae): 3 µg/L.

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Lac des Bouleaux is a lake in Urban agglomeration of Longueuil County, Québec.

Source: Québec RSVL (MELCCFP) — not the EPA Water Quality Portal, last sampled 2025-08-01. Grade methodology: LakeQuality methodology.

What Lac des Bouleaux is good for

From access and monitoring records, not editorial picks.

  • Clear water15.4 ft of visibility

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Lac des Bouleaux 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.

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Water quality measurements for Lac des Bouleaux

These are the measurements MELCCFP publishes for Lac des Bouleaux, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

Crystal clear, you can see 15.4 ft down. Phosphorus 10.6 µg/L. Chlorophyll-a 3 µg/L.

MetricValueEPA condition class
Water Clarity (Secchi Depth)4.7 mMeasured, not scored
Phosphorus10.6 µg/LMeasured, not scored
Chlorophyll-a (Algae)3 µg/LMeasured, not scored

Fishing Lac des Bouleaux

Nearby Lakes in Urban agglomeration of Longueuil

Frequently asked questions about Lac des Bouleaux

Ask about Lac des Bouleaux

Answers come straight from the public measurements and survey records on this page.

Where is Lac des Bouleaux?

Lac des Bouleaux is a lake in Urban agglomeration of Longueuil, Québec. MELCCFP classifies it zone de transition oligo-mésotrophe for 2025. This is MELCCFP's own trophic classification for 2025, not a LakeQuality grade.

What is the water quality of Lac des Bouleaux?

Lac des Bouleaux in Urban agglomeration of Longueuil, Québec is classified zone de transition oligo-mésotrophe by Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (Québec) for 2025. Water clarity: 4.7 m visibility. Phosphorus: 10.6 µg/L. Chlorophyll-a (algae): 3 µg/L.

Is Lac des Bouleaux safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

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 des Bouleaux. It is shown here as theirs, in their words, and is not folded into the LakeQuality letter.

Most recent, 2025
zone de transition oligo-mésotrophe

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 (19 classified 2014–2025)
YearPublished class
2024zone de transition oligo-mésotrophe
2023zone de transition oligo-mésotrophe
2022zone de transition oligo-mésotrophe
2021zone de transition oligo-mésotrophe
2020zone de transition oligo-mésotrophe
2019zone de transition oligo-mésotrophe
2018zone de transition oligo-mésotrophe
2017zone de transition oligo-mésotrophe
2016zone de transition oligo-mésotrophe
2015zone de transition oligo-mésotrophe
2014zone de transition oligo-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 des Bouleaux 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.