Hubley Big Lake
Halifax, Nova Scotia255 haView mapDirections
No A–F letter for this lake. The letter is scored against EPA reference conditions for a lake’s ecoregion, and those stop at the US border. Here is what has been measured.
- 46 ft max depth
- Limited data
Hubley Big Lake in Halifax, Nova Scotia has water-quality measurements published by NSECC and no A–F letter. The letter's EPA reference conditions stop at the US border. Water clarity: 3 m visibility. Phosphorus: 10.9 µg/L. Chlorophyll-a (algae): 1.5 µg/L. Maximum depth: 45.9 ft. Surface area: 630.9 acres.
- Clarity
- 3 m
- Max depth
- 14 m
- Area
- 255 ha
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Why Hubley Big Lake has no A–F letter
The LakeQuality letter is scored against EPA National Lakes Assessment reference conditions for a lake’s ecoregion, and those stop at the US border. There is no reference condition for Nova Scotia, so the scale cannot be applied to Hubley Big Lake at any level of sampling. Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).
This is not a gap in the monitoring record. NSECC publishes these measurements directly, and everything below that has been measured is reported on this page as NSECC reports it.
Monitoring: Nova Scotia Environment and Climate Change. Read the full grading methodology.
Hubley Big Lake is a 631-acre lake in Halifax County, Nova Scotia with a maximum depth of 46 feet (10-foot average).
Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 1990-10-28. Grade methodology: LakeQuality methodology.
What Hubley Big Lake is good for
From access and monitoring records, not editorial picks.
- Clear water9.8 ft of visibility
- Deep water45.9 ft surveyed max depth
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Hubley Big Lake
These are the measurements NSECC publishes for Hubley Big Lake. No A–F letter applies here: see why.
Moderate clarity, visible to about 9.8 ft. Phosphorus 10.9 µg/L. Chlorophyll-a 1.5 µg/L. TSI 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.98 m | Measured, not scored |
| Phosphorus | 10.9 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | 1.5 µg/L | Measured, not scored |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 14 m |
| Average Depth | 3 m |
| Surface Area | 255 ha |
Fishing Hubley Big Lake
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Frequently asked questions about Hubley Big Lake
Where is Hubley Big Lake?
- Hubley Big Lake is a lake in Halifax, Nova Scotia. Its water-quality measurements are published by NSECC, and it carries no A–F letter, because no reference condition exists for lakes in this region, so the assessment thresholds behind the A–F scale cannot be applied here.
What is the water quality grade for Hubley Big Lake?
- Hubley Big Lake in Halifax, Nova Scotia has water-quality measurements published by NSECC and no A–F letter. The letter's EPA reference conditions stop at the US border. Water clarity: 3 m visibility. Phosphorus: 10.9 µg/L. Chlorophyll-a (algae): 1.5 µg/L. Maximum depth: 45.9 ft. Surface area: 630.9 acres.
Is Hubley Big Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Hubley Big Lake?
- Hubley Big Lake has a maximum depth of 45.9 feet and an average depth of 9.8 feet. The lake covers 630.9 acres.
Explore Hubley Big Lake across LakeQuality
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Where this data comes from
11 measurements from 1 monitoring station, 1979–1990. Retrieved from Nova Scotia open data (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Soil and Water Conservation Society of Metro
Soil and Water Conservation Society of Metro3 samples · 1990 - Nova Scotia Environment and Climate Change
Nova Scotia Environment and Climate Change1 sample · 1984 - Lands and Forests
Lands and Forests1 sample · 1979
Monitoring station identifiers (1)
932
Canadian lakes are published with the measurements their provincial programme reports, and without a LakeQuality A–F letter. The letter is scored against EPA reference conditions for a lake’s ecoregion, and the EPA does not survey these lakes. See how grades are calculated and data sources.