Big Indian Lake
Halifax, Nova Scotia106 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.
- 30 ft max depth
- Limited data
Big Indian 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: 2.5 m visibility. Phosphorus: 2.5 µg/L. Chlorophyll-a (algae): 2.2 µg/L. Maximum depth: 29.5 ft. Surface area: 261.9 acres.
- Clarity
- 2.5 m
- Max depth
- 9 m
- Area
- 106 ha
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Why Big Indian 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 Big Indian 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.
Big Indian Lake is a 262-acre lake in Halifax County, Nova Scotia with a maximum depth of 30 feet.
Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 2007-08-15. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Big Indian Lake
These are the measurements NSECC publishes for Big Indian Lake. No A–F letter applies here: see why.
Moderate clarity, visible to about 8.2 ft. Phosphorus 2.5 µg/L. Chlorophyll-a 2.2 µg/L. TSI 34.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.5 m | Measured, not scored |
| Phosphorus | 2.5 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | 2.2 µg/L | Measured, not scored |
| Trophic State Index (TSI) | 34 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 9 m |
| Surface Area | 106 ha |
Fishing Big Indian Lake
Nearby Lakes in Halifax
Frequently asked questions about Big Indian Lake
Where is Big Indian Lake?
- Big Indian 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 Big Indian Lake?
- Big Indian 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: 2.5 m visibility. Phosphorus: 2.5 µg/L. Chlorophyll-a (algae): 2.2 µg/L. Maximum depth: 29.5 ft. Surface area: 261.9 acres.
Is Big Indian Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Big Indian Lake?
- Big Indian Lake has a maximum depth of 29.5 feet. The lake covers 261.9 acres.
Explore Big Indian Lake across LakeQuality
More lakes in Nova Scotia
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Oligotrophic Lakes in Nova Scotia
Where this data comes from
3 measurements from 1 monitoring station, 1974–2007. Retrieved from Nova Scotia open data (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- NSDFA
NSDFA2 samples · 2007–2008 - Submitting organization not recorded for these samples1 sample · 1974
Some records reached the portal without a submitting organization. Those samples are counted above but not attributed.
Monitoring station identifiers (1)
980
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.