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LakeQuality

Shubenacadie Grand Lake

Halifax, Nova ScotiaView mapDirections

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

Clarity
6.3 m
Clearer than most
Secchi · sampled 2002
Phosphorus
8.5 µg/L
More phosphorus than most
Measured by NSECC
Chlorophyll-a
0.9 µg/L
Less algae than most
Measured by NSECC
Max depth
45 m
Bathymetric survey
  • 148 ft max depth
  • Limited data

Shubenacadie Grand Lake in Halifax, Nova Scotia has water-quality measurements published by NSECC, shown here as reported. Water clarity: 6.3 m visibility. Phosphorus: 8.5 µg/L. Chlorophyll-a (algae): 0.9 µg/L. Maximum depth: 147.6 ft.

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Shubenacadie Grand Lake is a lake in Halifax County, Nova Scotia with a maximum depth of 148 feet (54-foot average).

Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 2002-11-12. Methodology: how these readings are compared.

What Shubenacadie Grand Lake is good for

From access and monitoring records, not editorial picks.

  • Clear water20.7 ft of visibility
  • Deep water147.6 ft surveyed max depth

Swimming conditions

No reading

Limited data

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

Whether Shubenacadie Grand 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 Shubenacadie Grand Lake

These are the measurements NSECC publishes for Shubenacadie Grand Lake, 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 20.7 ft down. Phosphorus 8.5 µg/L. Chlorophyll-a 0.9 µg/L. TSI 33.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)6.3mMeasured, not scored

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

Total phosphorus8.5µg/LMeasured, not scored

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

Chlorophyll-a (algae)0.9µg/LMeasured, not scored

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.33Oligotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Low nutrients, clear water. No reading is a swimming clearance.

Ask about Shubenacadie Grand Lake

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

Lake Details

Max depth

45 m

Average depth

16.5 m

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Frequently asked questions about Shubenacadie Grand Lake

Where is Shubenacadie Grand Lake?

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

What is the water quality of Shubenacadie Grand Lake?

Shubenacadie Grand Lake in Halifax, Nova Scotia has water-quality measurements published by NSECC, shown here as reported. Water clarity: 6.3 m visibility. Phosphorus: 8.5 µg/L. Chlorophyll-a (algae): 0.9 µg/L. Maximum depth: 147.6 ft.

Measurements on this page ↑

Is Shubenacadie Grand 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 Shubenacadie Grand Lake?

Shubenacadie Grand Lake has a maximum depth of 147.6 feet and an average depth of 54.1 feet.

Where this data comes from

5 measurements from 1 monitoring station, 1974–2002. Retrieved from Nova Scotia open data (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

  • NSDAFNSDAF1 sample · 2002
  • Environment Canada- Shubenacadie Headwaters EnviroEnvironment Canada- Shubenacadie Headwaters Enviro1 sample · 1974
Monitoring station identifiers (1)
  • 875

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