Mardi Gras Lake
Digby, Nova Scotia12 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
Mardi Gras Lake in Digby, 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: 0.9 m visibility. Phosphorus: 6.5 µg/L. Maximum depth: 6.6 ft. Surface area: 29.9 acres.
- Clarity
- 0.9 m
- Max depth
- 2 m
- Area
- 12 ha
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Why Mardi Gras 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 Mardi Gras 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.
Mardi Gras Lake is a 30-acre lake in Digby County, Nova Scotia with a maximum depth of 7 feet.
Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 1982-08-20. 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 Mardi Gras Lake
These are the measurements NSECC publishes for Mardi Gras Lake. No A–F letter applies here: see why.
Very murky, less than 3 ft of visibility. Phosphorus 6.5 µg/L. TSI 46.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.9 m | Measured, not scored |
| Phosphorus | 6.5 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 46 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 2 m |
| Surface Area | 12 ha |
Fishing Mardi Gras Lake
Nearby Lakes in Digby
Frequently asked questions about Mardi Gras Lake
Where is Mardi Gras Lake?
- Mardi Gras Lake is a lake in Digby, 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 Mardi Gras Lake?
- Mardi Gras Lake in Digby, 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: 0.9 m visibility. Phosphorus: 6.5 µg/L. Maximum depth: 6.6 ft. Surface area: 29.9 acres.
Is Mardi Gras Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Mardi Gras Lake?
- Mardi Gras Lake has a maximum depth of 6.6 feet. The lake covers 29.9 acres.
Explore Mardi Gras Lake across LakeQuality
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Where this data comes from
4 measurements from 1 monitoring station, 1982. Retrieved from Nova Scotia open data (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Lands and Forests, NSDOE
Lands and Forests, NSDOE2 samples · 1982
Monitoring station identifiers (1)
972
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.