Petit Lac Lake
Inverness, 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.
- 53 ft max depth
- Limited data
Petit Lac Lake in Inverness, 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: 1.4 m visibility. Maximum depth: 52.5 ft. Surface area: 22.5 acres.
- Clarity
- 1.4 m
- Max depth
- 16 m
- Area
- 9 ha
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Why Petit Lac 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 Petit Lac 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.
Petit Lac Lake is a 23-acre lake in Inverness County, Nova Scotia with a maximum depth of 53 feet (16-foot average).
Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 1975-08-19. Grade methodology: LakeQuality methodology.
What Petit Lac Lake is good for
From access and monitoring records, not editorial picks.
- Deep water52.5 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 Petit Lac Lake
These are the measurements NSECC publishes for Petit Lac Lake. No A–F letter applies here: see why.
Murky, only visible to about 4.6 ft. TSI 55.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.4 m | Measured, not scored |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 55 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 16 m |
| Average Depth | 5 m |
| Surface Area | 9 ha |
Fishing Petit Lac Lake
Nearby Lakes in Inverness
Frequently asked questions about Petit Lac Lake
Where is Petit Lac Lake?
- Petit Lac Lake is a lake in Inverness, 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 Petit Lac Lake?
- Petit Lac Lake in Inverness, 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: 1.4 m visibility. Maximum depth: 52.5 ft. Surface area: 22.5 acres.
Is Petit Lac Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Petit Lac Lake?
- Petit Lac Lake has a maximum depth of 52.5 feet and an average depth of 16.4 feet. The lake covers 22.5 acres.
Explore Petit Lac Lake across LakeQuality
More lakes in Nova Scotia
Other Lakes in Nova Scotia
Eutrophic Lakes in Nova Scotia
Where this data comes from
1 measurement from 1 monitoring station, 1975. 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 · 1989 - Lands and Forests
Lands and Forests1 sample · 1975
Monitoring station identifiers (1)
158
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.