Gary Lake
Guysborough, Nova Scotia9 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.
- Limited data
Gary Lake in Guysborough, 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: 2.2 m visibility. Surface area: 22 acres.
- Clarity
- 2.2 m
- Area
- 9 ha
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Why Gary 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 Gary 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.
Gary Lake is a 22-acre lake in Guysborough County, Nova Scotia.
Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 1977-08-23. 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 Gary Lake
These are the measurements NSECC publishes for Gary Lake. No A–F letter applies here: see why.
Moderate clarity, visible to about 7.2 ft. TSI 49.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.2 m | Measured, not scored |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 49 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 9 ha |
The available depth estimate for Gary Lake is shallower than its measured water clarity, which cannot be right, so no depth is shown.
Fishing Gary Lake
Nearby Lakes in Guysborough
Frequently asked questions about Gary Lake
Where is Gary Lake?
- Gary Lake is a lake in Guysborough, 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 Gary Lake?
- Gary Lake in Guysborough, 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: 2.2 m visibility. Surface area: 22 acres.
Is Gary Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Gary Lake?
- The available depth estimate for Gary Lake is shallower than its measured water clarity, which cannot be right, so no depth is shown. The lake covers 22 acres.
Explore Gary Lake across LakeQuality
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Where this data comes from
1 measurement from 1 monitoring station, 1977. Retrieved from Nova Scotia open data (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- DFO
DFO1 sample · 1977
Monitoring station identifiers (1)
975
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.