Card Lake
Lunenburg, Nova Scotia270 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.
- 56 ft max depth
- Limited data
Card Lake in Lunenburg, 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 m visibility. Phosphorus: 2.5 µg/L. Maximum depth: 55.8 ft. Surface area: 667.2 acres.
- Clarity
- 2 m
- Max depth
- 17 m
- Area
- 270 ha
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Why Card 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 Card Lake at any level of sampling. Sampling here has recorded water clarity and phosphorus, but not 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.
Card Lake is a 667-acre lake in Lunenburg County, Nova Scotia with a maximum depth of 56 feet (10-foot average).
Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 2006-08-16. Grade methodology: LakeQuality methodology.
What Card Lake is good for
From access and monitoring records, not editorial picks.
- Deep water55.8 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 Card Lake
These are the measurements NSECC publishes for Card Lake. No A–F letter applies here: see why.
Murky, only visible to about 6.6 ft. Phosphorus 2.5 µg/L. TSI 34.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2 m | Measured, not scored |
| Phosphorus | 2.5 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 34 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 17 m |
| Average Depth | 2.9 m |
| Surface Area | 270 ha |
Fishing Card Lake
Nearby Lakes in Lunenburg
Frequently asked questions about Card Lake
Where is Card Lake?
- Card Lake is a lake in Lunenburg, 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 Card Lake?
- Card Lake in Lunenburg, 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 m visibility. Phosphorus: 2.5 µg/L. Maximum depth: 55.8 ft. Surface area: 667.2 acres.
Is Card Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Card Lake?
- Card Lake has a maximum depth of 55.8 feet and an average depth of 9.5 feet. The lake covers 667.2 acres.
Explore Card Lake across LakeQuality
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Where this data comes from
3 measurements from 1 monitoring station, 1990–2006. Retrieved from Nova Scotia open data (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- NSDAF
NSDAF1 sample · 2006 - NS Dept. of Fisheries
NS Dept. of Fisheries1 sample · 1990
Monitoring station identifiers (1)
24
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.