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LakeQuality

Lac CôMe

Matawinie, QuébecView mapDirections

classe eutrophe

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

Clarity
1.8 m
Secchi · sampled 2025
Phosphorus
9.5 µg/L
Measured by MELCCFP
Chlorophyll-a
4.4 µg/L
Measured by MELCCFP
Max depth
~12.5 m est.
GLOBathy model
  • 41 ft max depth

Lac CôMe in Matawinie, Québec is classified classe eutrophe by Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (Québec) for 2025. Water clarity: 1.8 m visibility. Phosphorus: 9.5 µg/L. Chlorophyll-a (algae): 4.4 µg/L.

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Lac CôMe is a lake in Matawinie County, Québec with an estimated average depth of about 41 feet.

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

Swimming conditions

No reading

Not rated

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

Whether Lac CôMe 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 CôMe

These are the measurements MELCCFP publishes for Lac CôMe, 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 5.9 ft. Phosphorus 9.5 µg/L. Chlorophyll-a 4.4 µg/L.

MetricValueEPA condition class
Water Clarity (Secchi Depth)1.8 mMeasured, not scored
Phosphorus9.5 µg/LMeasured, not scored
Chlorophyll-a (Algae)4.4 µg/LMeasured, not scored

Lake Details

CharacteristicValue
Maximum Depth~12.5 m est.
Average Depth~4.3 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 CôMe.

Lake Size & Watershed

Watershed (drainage) area
1 sq mi
Surface area
57 acres
Shoreline
2.2 mi
Elevation
1,017 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.

Fishing Lac CôMe

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Frequently asked questions about Lac CôMe

Ask about Lac CôMe

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

Where is Lac CôMe?

Lac CôMe is a lake in Matawinie, Québec. MELCCFP classifies it classe eutrophe for 2025. This is MELCCFP's own trophic classification for 2025, not a LakeQuality grade.

What is the water quality of Lac CôMe?

Lac CôMe in Matawinie, Québec is classified classe eutrophe by Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (Québec) for 2025. Water clarity: 1.8 m visibility. Phosphorus: 9.5 µg/L. Chlorophyll-a (algae): 4.4 µg/L.

Is Lac CôMe safe to swim in?

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

How deep is Lac CôMe?

No published bathymetric survey covers Lac CôMe, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 41 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.

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

Most recent, 2025
classe eutrophe

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 (16 classified 2012–2025)
YearPublished class
2024zone de transition méso-eutrophe
2023classe mésotrophe
2022classe mésotrophe
2020zone de transition méso-eutrophe
2019zone de transition oligo-mésotrophe
2018zone de transition oligo-mésotrophe
2016zone de transition oligo-mésotrophe
2015zone de transition oligo-mésotrophe
2014zone de transition oligo-mésotrophe
2013zone de transition oligo-mésotrophe
2012classe 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 CôMe 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)