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LakeQuality

Big Gaspereaux Lake

Guysborough, Nova Scotia325 haView mapDirections

NSECC publishes the water-quality measurements for Big Gaspereaux Lake. Here is what has been measured.

Clarity
2.3 m
Typical for Nova Scotia
Secchi · sampled 1978
Max depth
9 m
Bathymetric survey
Area
325 ha
Surface area
  • 30 ft max depth
  • Limited data

Big Gaspereaux Lake in Guysborough, Nova Scotia has water-quality measurements published by NSECC, shown here as reported. Water clarity: 2.3 m visibility. Maximum depth: 29.5 ft. Surface area: 804.3 acres.

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Big Gaspereaux Lake is a 804-acre lake in Guysborough County, Nova Scotia with a maximum depth of 30 feet (11-foot average).

Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 1978-08-07. Methodology: how these readings are compared.

Swimming conditions

No reading

Limited data

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

Whether Big Gaspereaux Lake is safe to swim in today is a call for Nova Scotia Environment and Climate Change and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Big Gaspereaux Lake

These are the measurements NSECC publishes for Big Gaspereaux Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

Moderate clarity, visible to about 7.5 ft. TSI 48.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)2.3mMeasured, not scored

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorusNo reading

The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.

Chlorophyll-a (algae)No reading

The green pigment in algae — a direct measure of how much algae is in the water.

Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.48Mesotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

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

Lake Details

Max depth

9 m

Average depth

3.3 m

Surface area

325 ha

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Frequently asked questions about Big Gaspereaux Lake

Where is Big Gaspereaux Lake?

Big Gaspereaux Lake is a lake in Guysborough, Nova Scotia. Its water-quality measurements are published by NSECC and shown on this page as reported.

What is the water quality of Big Gaspereaux Lake?

Big Gaspereaux Lake in Guysborough, Nova Scotia has water-quality measurements published by NSECC, shown here as reported. Water clarity: 2.3 m visibility. Maximum depth: 29.5 ft. Surface area: 804.3 acres.

Measurements on this page ↑

Is Big Gaspereaux Lake safe to swim in?

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

Swimming on this page ↑

How deep is Big Gaspereaux Lake?

Big Gaspereaux Lake has a maximum depth of 29.5 feet and an average depth of 10.8 feet. The lake covers 804.3 acres.

Mesotrophic Lakes in Nova Scotia

Where this data comes from

1 measurement from 1 monitoring station, 1978. Retrieved from Nova Scotia open data (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

  • Lands and ForestsLands and Forests1 sample · 1978
Monitoring station identifiers (1)
  • 986

Canadian lakes are published with the measurements their provincial programme reports. See where the data comes from and data sources.