Gillis Lake
Antigonish, Nova Scotia28 haView mapDirections
NSECC publishes the water-quality measurements for Gillis Lake. Here is what has been measured.
- 36 ft max depth
- Limited data
Gillis Lake in Antigonish, Nova Scotia has water-quality measurements published by NSECC, shown here as reported. Water clarity: 3.5 m visibility. Maximum depth: 36.1 ft. Surface area: 69.2 acres.
Gillis Lake is a 69-acre lake in Antigonish County, Nova Scotia with a maximum depth of 36 feet (13-foot average).
Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 1975-08-21. Methodology: how these readings are compared.
What Gillis Lake is good for
From access and monitoring records, not editorial picks.
- Clear water11.5 ft of visibility
- Deep water36.1 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Gillis 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.
Water quality measurements for Gillis Lake
These are the measurements NSECC publishes for Gillis Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 11.5 ft. TSI 42.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3.5m | 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. | 42 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Gillis Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
11 m
Average depth
3.9 m
Surface area
28 ha
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Fishing Gillis Lake
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Frequently asked questions about Gillis Lake
Where is Gillis Lake?
- Gillis Lake is a lake in Antigonish, Nova Scotia. Its water-quality measurements are published by NSECC and shown on this page as reported.
What is the water quality of Gillis Lake?
- Gillis Lake in Antigonish, Nova Scotia has water-quality measurements published by NSECC, shown here as reported. Water clarity: 3.5 m visibility. Maximum depth: 36.1 ft. Surface area: 69.2 acres.
Is Gillis Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Gillis Lake?
- Gillis Lake has a maximum depth of 36.1 feet and an average depth of 12.8 feet. The lake covers 69.2 acres.
Explore Gillis Lake across LakeQuality
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Where this data comes from
2 measurements from 1 monitoring station, 1973–1975. Retrieved from Nova Scotia open data (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Lands and Forests
Lands and Forests1 sample · 1975 - DFO
DFO1 sample · 1973
Monitoring station identifiers (1)
4
Canadian lakes are published with the measurements their provincial programme reports. See where the data comes from and data sources.