Granite Lake
Halifax, Nova ScotiaView mapDirections
NSECC publishes the water-quality measurements for Granite Lake. Here is what has been measured.
- Limited data
Granite Lake in Halifax, Nova Scotia has water-quality measurements published by NSECC, shown here as reported. Phosphorus: 10 µg/L.
Granite Lake is a lake in Halifax County, Nova Scotia.
Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 1985-09-02. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Granite 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 Granite Lake
These are the measurements NSECC publishes for Granite Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 10 µg/L. TSI 37.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 10µg/L | Measured, not scored 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. | 37 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
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Frequently asked questions about Granite Lake
Where is Granite Lake?
- Granite 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 Granite Lake?
- Granite Lake in Halifax, Nova Scotia has water-quality measurements published by NSECC, shown here as reported. Phosphorus: 10 µg/L.
Is Granite Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
1 measurement from 2 monitoring stations, 1985. Retrieved from Nova Scotia open data (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- NS Dept. of Fisheries
NS Dept. of Fisheries1 sample · 1994 - Submitting organization not recorded for these samples1 sample · 1985
Some records reached the portal without a submitting organization. Those samples are counted above but not attributed.
Monitoring station identifiers (2)
6746
Canadian lakes are published with the measurements their provincial programme reports. See where the data comes from and data sources.