Welshtown Lake
Shelburne, Nova Scotia254 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.
- 7 ft max depth
- Limited data
Welshtown Lake in Shelburne, 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: 0.7 m visibility. Maximum depth: 6.6 ft. Surface area: 626.9 acres.
- Clarity
- 0.7 m
- Max depth
- 2 m
- Area
- 254 ha
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Why Welshtown 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 Welshtown 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.
Welshtown Lake is a 627-acre lake in Shelburne County, Nova Scotia with a maximum depth of 7 feet (3-foot average).
Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 1980-08-12. 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 Welshtown Lake
These are the measurements NSECC publishes for Welshtown Lake. No A–F letter applies here: see why.
Very murky, less than 2.3 ft of visibility. TSI 65.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.7 m | Measured, not scored |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 65 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 2 m |
| Average Depth | 0.9 m |
| Surface Area | 254 ha |
Fishing Welshtown Lake
Nearby Lakes in Shelburne
Frequently asked questions about Welshtown Lake
Where is Welshtown Lake?
- Welshtown Lake is a lake in Shelburne, 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 Welshtown Lake?
- Welshtown Lake in Shelburne, 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: 0.7 m visibility. Maximum depth: 6.6 ft. Surface area: 626.9 acres.
Is Welshtown Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Welshtown Lake?
- Welshtown Lake has a maximum depth of 6.6 feet and an average depth of 3 feet. The lake covers 626.9 acres.
Explore Welshtown Lake across LakeQuality
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Where this data comes from
1 measurement from 1 monitoring station, 1980. 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 Fisheries1 sample · 1983 - Lands and Forests
Lands and Forests1 sample · 1980
Monitoring station identifiers (1)
45
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.