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LakeQuality

Grand Lac Squatec

Témiscouata, QuébecView mapDirections

classe oligotrophe

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

Clarity
7.1 m
Secchi · sampled 2025
Phosphorus
3.3 µg/L
Measured by MELCCFP
Chlorophyll-a
1.9 µg/L
Measured by MELCCFP
Max depth
~14.6 m est.
GLOBathy model
  • 48 ft max depth

Grand Lac Squatec in Témiscouata, Québec is classified classe oligotrophe by Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (Québec) for 2025. Water clarity: 7.1 m visibility. Phosphorus: 3.3 µg/L. Chlorophyll-a (algae): 1.9 µg/L.

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Grand Lac Squatec is a lake in Témiscouata County, Québec with an estimated average depth of about 48 feet.

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

What Grand Lac Squatec is good for

From access and monitoring records, not editorial picks.

  • Clear water23.3 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 Grand Lac Squatec 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 Grand Lac Squatec

These are the measurements MELCCFP publishes for Grand Lac Squatec, 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 23.3 ft down. Phosphorus 3.3 µg/L. Chlorophyll-a 1.9 µg/L.

MetricValueEPA condition class
Water Clarity (Secchi Depth)7.1 mMeasured, not scored
Phosphorus3.3 µg/LMeasured, not scored
Chlorophyll-a (Algae)1.9 µg/LMeasured, not scored

Lake Details

CharacteristicValue
Maximum Depth~14.6 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 Grand Lac Squatec.

Lake Size & Watershed

Watershed (drainage) area
145 sq mi
Surface area
2,938 acres
Shoreline
17.4 mi
Elevation
574 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 Grand Lac Squatec

Nearby Lakes in Témiscouata

Frequently asked questions about Grand Lac Squatec

Ask about Grand Lac Squatec

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

Where is Grand Lac Squatec?

Grand Lac Squatec is a lake in Témiscouata, Québec. MELCCFP classifies it classe oligotrophe for 2025. This is MELCCFP's own trophic classification for 2025, not a LakeQuality grade.

What is the water quality of Grand Lac Squatec?

Grand Lac Squatec in Témiscouata, Québec is classified classe oligotrophe by Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (Québec) for 2025. Water clarity: 7.1 m visibility. Phosphorus: 3.3 µg/L. Chlorophyll-a (algae): 1.9 µg/L.

Is Grand Lac Squatec safe to swim in?

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

How deep is Grand Lac Squatec?

No published bathymetric survey covers Grand Lac Squatec, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 48 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 Grand Lac Squatec. It is shown here as theirs, in their words, and is not folded into the LakeQuality letter.

Most recent, 2025
classe oligotrophe

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 (3 classified 2023–2025)
YearPublished class
2024classe oligotrophe
2023classe oligotrophe

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 Grand Lac Squatec 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)