Where is Fourth Lake?

Fourth 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 Fourth Lake?

Fourth Lake has a maximum depth of 9.8 feet and an average depth of 5.9 feet. The lake covers 53.9 acres.

Fourth Lake

Halifax, Nova Scotia22 haView map Directions

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

Clarity

1.7 m

Typical for Nova Scotia

Secchi · sampled 2005

Phosphorus

7 µg/L

Typical for Nova Scotia

Measured by NSECC

Chlorophyll-a

2.8 µg/L

Typical for Nova Scotia

Measured by NSECC

Max depth

3 m

Bathymetric survey

Area

22 ha

Surface area

10 ft max depth
Limited data

See the measurements Directions Where to stay

Fourth Lake in Halifax, Nova Scotia has water-quality measurements published by NSECC, shown here as reported. Water clarity: 1.7 m visibility. Phosphorus: 7 µg/L. Chlorophyll-a (algae): 2.8 µg/L. Maximum depth: 9.8 ft. Surface area: 53.9 acres.

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Fourth Lake is a 54-acre lake in Halifax County, Nova Scotia with a maximum depth of 10 feet (6-foot average).

Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 2005-09-08. 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 Fourth 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 Fourth Lake

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

Murky, only visible to about 5.6 ft. Phosphorus 7 µg/L. Chlorophyll-a 2.8 µg/L. TSI 42.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	1.7m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	7µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	2.8µg/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.	42	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Fourth Lake

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

Lake Details

Max depth

3 m

Average depth

1.8 m

Surface area

22 ha

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Fishing Fourth Lake

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

Nearby Lakes in Halifax

Salmon River Big Lake1 m clear2.5 miView →Nowlin Lake4.9 m clear2.5 miView →Paul Morris Lake3.1 m clear2.3 miView →Halfway Brook Lake2.6 m clear2.6 miView →Green Lake1.6 m clear3.6 miView →Second Lake4.4 m clear2.7 miView →

Frequently asked questions about Fourth Lake

Where is Fourth Lake?: Fourth 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 Fourth Lake?: Fourth Lake in Halifax, Nova Scotia has water-quality measurements published by NSECC, shown here as reported. Water clarity: 1.7 m visibility. Phosphorus: 7 µg/L. Chlorophyll-a (algae): 2.8 µg/L. Maximum depth: 9.8 ft. Surface area: 53.9 acres.
Is Fourth Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Fourth Lake?: Fourth Lake has a maximum depth of 9.8 feet and an average depth of 5.9 feet. The lake covers 53.9 acres.