Where is Topsail Lake?

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

How deep is Topsail Lake?

Topsail Lake has a maximum depth of 23 feet and an average depth of 8.5 feet. The lake covers 146 acres.

Topsail Lake

Halifax, Nova Scotia59 haView map Directions

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

Clarity

6.3 m

Clearer than most

Secchi · sampled 1971

Max depth

7 m

Bathymetric survey

Area

59 ha

Surface area

23 ft max depth
Limited data

See the measurements Directions Where to stay

Topsail Lake in Halifax, Nova Scotia has water-quality measurements published by NSECC, shown here as reported. Water clarity: 6.3 m visibility. Maximum depth: 23 ft. Surface area: 146 acres.

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Topsail Lake is a 146-acre lake in Halifax County, Nova Scotia with a maximum depth of 23 feet (9-foot average).

Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 1971-08-05. Methodology: how these readings are compared.

What Topsail Lake is good for

From access and monitoring records, not editorial picks.

Clear water20.7 ft of visibility

Swimming conditions

No reading

Limited data

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

Whether Topsail 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 Topsail Lake

These are the measurements NSECC publishes for Topsail 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. TSI 33.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	6.3m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus		No 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.	33	Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic

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

Ask about Topsail Lake

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

Lake Details

Max depth

7 m

Average depth

2.6 m

Surface area

59 ha

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Fishing Topsail Lake

→ Topsail Lake fishing regulations (limits, seasons, special rules)

Nearby Lakes in Halifax

Settle Lake1.8 m clear1.2 miView →Otter Lake3 m clear1.8 miView →Russell Lake1.2 m clear2.2 miView →Micmac Lake4.4 m clear1.8 miView →Bell Lake5.3 m clear2 miView →Oathill Lake5.2 m clear2.2 miView →

Frequently asked questions about Topsail Lake

Where is Topsail Lake?: Topsail 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 Topsail Lake?: Topsail Lake in Halifax, Nova Scotia has water-quality measurements published by NSECC, shown here as reported. Water clarity: 6.3 m visibility. Maximum depth: 23 ft. Surface area: 146 acres.
Is Topsail Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Topsail Lake?: Topsail Lake has a maximum depth of 23 feet and an average depth of 8.5 feet. The lake covers 146 acres.