Long 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 Long Lake?

Long Lake has a maximum depth of 98.4 feet and an average depth of 24.3 feet. The lake covers 392.4 acres.

Long Lake

Halifax, Nova Scotia159 haView map Directions

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

Clarity

2.3 m

Typical for Nova Scotia

Secchi · sampled 2007

Phosphorus

28 µg/L

More phosphorus than most

Measured by NSECC

Chlorophyll-a

1 µg/L

Typical for Nova Scotia

Measured by NSECC

Max depth

30 m

Bathymetric survey

Area

159 ha

Surface area

98 ft max depth
Limited data

See the measurements Directions Where to stay

Long Lake in Halifax, Nova Scotia has water-quality measurements published by NSECC, shown here as reported. Water clarity: 2.3 m visibility. Phosphorus: 28 µg/L. Chlorophyll-a (algae): 1 µg/L. Maximum depth: 98.4 ft. Surface area: 392.4 acres.

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Long Lake is a 392-acre lake in Halifax County, Nova Scotia with a maximum depth of 98 feet (24-foot average).

Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 2007-10-19. Methodology: how these readings are compared.

What Long Lake is good for

From access and monitoring records, not editorial picks.

Deep water98.4 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 Long 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 Long Lake

These are the measurements NSECC publishes for Long 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 7.6 ft. Phosphorus 28 µg/L. Chlorophyll-a 1 µg/L. TSI 44.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	2.31m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	28µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	1µg/L	Measured, 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.	44	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Long Lake

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

Lake Details

Max depth

30 m

Average depth

7.4 m

Surface area

159 ha

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Stays near Long Lake

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Fishing Long Lake

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

Nearby Lakes in Halifax

Robison Pond0.7 m clear1.3 miView →Bell Lake5.3 m clear1.7 miView →Bissett Lake1 m clear3.2 miView →Settle Lake1.8 m clear3.1 miView →Otter Lake3 m clear3.4 miView →Major Lake4.3 m clear4 miView →

Frequently asked questions about Long Lake

Where is Long Lake?: Long 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 Long Lake?: Long Lake in Halifax, Nova Scotia has water-quality measurements published by NSECC, shown here as reported. Water clarity: 2.3 m visibility. Phosphorus: 28 µg/L. Chlorophyll-a (algae): 1 µg/L. Maximum depth: 98.4 ft. Surface area: 392.4 acres.
Is Long Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Long Lake?: Long Lake has a maximum depth of 98.4 feet and an average depth of 24.3 feet. The lake covers 392.4 acres.