Spider Lake
Halifax, Nova Scotia65 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.
- 33 ft max depth
- Limited data
Spider 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: 6.8 m visibility. Maximum depth: 32.8 ft. Surface area: 159.9 acres.
- Clarity
- 6.8 m
- Max depth
- 10 m
- Area
- 65 ha
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Why Spider 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 Spider Lake at any level of sampling. Sampling here has recorded water clarity, but not 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.
Spider Lake is a 160-acre lake in Halifax County, Nova Scotia with a maximum depth of 33 feet (7-foot average).
Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 1989-08-22. Grade methodology: LakeQuality methodology.
What Spider Lake is good for
From access and monitoring records, not editorial picks.
- Clear water22.1 ft of visibility
- Deep water32.8 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 Spider Lake
These are the measurements NSECC publishes for Spider Lake. No A–F letter applies here: see why.
Crystal clear, you can see 22.1 ft down. TSI 32.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.75 m | Measured, not scored |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 32 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 10 m |
| Average Depth | 2.2 m |
| Surface Area | 65 ha |
Fishing Spider Lake
Nearby Lakes in Halifax
Frequently asked questions about Spider Lake
Where is Spider Lake?
- Spider 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 Spider Lake?
- Spider 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: 6.8 m visibility. Maximum depth: 32.8 ft. Surface area: 159.9 acres.
Is Spider Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Spider Lake?
- Spider Lake has a maximum depth of 32.8 feet and an average depth of 7.2 feet. The lake covers 159.9 acres.
Explore Spider Lake across LakeQuality
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Where this data comes from
1 measurement from 1 monitoring station, 1989. 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 Fisheries2 samples · 1989–1999
Monitoring station identifiers (1)
193
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.