Tupper Lake
Queens, Nova Scotia440 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
Tupper Lake in Queens, 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: 10 µg/L. Maximum depth: 45.9 ft. Surface area: 1087 acres.
- Clarity
- 2.5 m
- Max depth
- 14 m
- Area
- 440 ha
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Why Tupper 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 Tupper 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.
Tupper Lake is a 1,087-acre lake in Queens 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 1982-07-15. Grade methodology: LakeQuality methodology.
What Tupper Lake is good for
From access and monitoring records, not editorial picks.
- Deep water45.9 ft surveyed max depth
- Big water1,087 acres
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Tupper Lake
These are the measurements NSECC publishes for Tupper Lake. No A–F letter applies here: see why.
Moderate clarity, visible to about 8.2 ft. Phosphorus 10 µg/L. TSI 42.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.5 m | Measured, not scored |
| Phosphorus | 10 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 42 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 14 m |
| Average Depth | 2.9 m |
| Surface Area | 440 ha |
Fishing Tupper Lake
Nearby Lakes in Queens
Frequently asked questions about Tupper Lake
Where is Tupper Lake?
- Tupper Lake is a lake in Queens, 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 Tupper Lake?
- Tupper Lake in Queens, 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: 10 µg/L. Maximum depth: 45.9 ft. Surface area: 1087 acres.
Is Tupper Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Tupper Lake?
- Tupper Lake has a maximum depth of 45.9 feet and an average depth of 9.5 feet. The lake covers 1087 acres.
Explore Tupper Lake across LakeQuality
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Where this data comes from
3 measurements from 1 monitoring station, 1974–1982. Retrieved from Nova Scotia open data (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Nova Scotia Environment and Climate Change
Nova Scotia Environment and Climate Change3 samples · — - Lands and Forests, NSDOE
Lands and Forests, NSDOE1 sample · 1982 - Lands and Forests
Lands and Forests1 sample · 1974
Monitoring station identifiers (1)
18
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.