Lac Dufresnoy
Abitibi-Témiscamingue, QuébecView mapDirections
This is MELCCFP's own trophic classification for 2024, not a LakeQuality grade. See every year
Lac Dufresnoy in Abitibi-Témiscamingue, 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 2024. Water clarity: 0.7 m visibility. Phosphorus: 28.2 µg/L. Chlorophyll-a (algae): 5.3 µg/L.
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Lac Dufresnoy is a lake in Abitibi-Témiscamingue County, Québec.
Source: Québec RSVL (MELCCFP) — not the EPA Water Quality Portal, last sampled 2024-08-01. Grade methodology: LakeQuality methodology.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lac Dufresnoy 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 Dufresnoy
These are the measurements MELCCFP publishes for Lac Dufresnoy, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 2.3 ft of visibility. Phosphorus 28.2 µg/L. Chlorophyll-a 5.3 µg/L.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.7 m | Measured, not scored |
| Phosphorus | 28.2 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | 5.3 µg/L | Measured, not scored |
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Frequently asked questions about Lac Dufresnoy
Ask about Lac Dufresnoy
Answers come straight from the public measurements and survey records on this page.
Where is Lac Dufresnoy?
- Lac Dufresnoy is a lake in Abitibi-Témiscamingue, Québec. MELCCFP classifies it classe hyper-eutrophe for 2024. This is MELCCFP's own trophic classification for 2024, not a LakeQuality grade.
What is the water quality of Lac Dufresnoy?
- Lac Dufresnoy in Abitibi-Témiscamingue, 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 2024. Water clarity: 0.7 m visibility. Phosphorus: 28.2 µg/L. Chlorophyll-a (algae): 5.3 µg/L.
Is Lac Dufresnoy safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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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 Dufresnoy. 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 2024, 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 (4 classified 2012–2024)
| Year | Published class |
|---|---|
| 2014 | classe eutrophe |
| 2013 | zone de transition méso-eutrophe |
| 2012 | zone de transition méso-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 Dufresnoy 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.