Doctor Lake
Yarmouth, Nova Scotia113 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
Doctor Lake in Yarmouth, 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: 0.8 m visibility. Phosphorus: 18 µg/L. Maximum depth: 29.5 ft. Surface area: 280 acres.
- Clarity
- 0.8 m
- Max depth
- 9 m
- Area
- 113 ha
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Why Doctor 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 Doctor 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.
Doctor Lake is a 280-acre lake in Yarmouth County, Nova Scotia with a maximum depth of 30 feet (11-foot average).
Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 1981-08-26. 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 Doctor Lake
These are the measurements NSECC publishes for Doctor Lake. No A–F letter applies here: see why.
Very murky, less than 2.6 ft of visibility. Phosphorus 18 µg/L. TSI 55.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.8 m | Measured, not scored |
| Phosphorus | 18 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 55 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 9 m |
| Average Depth | 3.3 m |
| Surface Area | 113 ha |
Fishing Doctor Lake
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Frequently asked questions about Doctor Lake
Where is Doctor Lake?
- Doctor Lake is a lake in Yarmouth, 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 Doctor Lake?
- Doctor Lake in Yarmouth, 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: 0.8 m visibility. Phosphorus: 18 µg/L. Maximum depth: 29.5 ft. Surface area: 280 acres.
Is Doctor Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Doctor Lake?
- Doctor Lake has a maximum depth of 29.5 feet and an average depth of 10.8 feet. The lake covers 280 acres.
Explore Doctor Lake across LakeQuality
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Where this data comes from
2 measurements from 1 monitoring station, 1981. 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 · 1992 - Lands and Forests, NSDOE
Lands and Forests, NSDOE1 sample · 1981
Monitoring station identifiers (1)
84
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.