Provost Lake
Digby, Nova Scotia34 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
Provost 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: 2.5 m visibility. Phosphorus: 11.5 µg/L. Chlorophyll-a (algae): 7.5 µg/L. Maximum depth: 29.5 ft. Surface area: 83.5 acres.
- Clarity
- 2.5 m
- Max depth
- 9 m
- Area
- 34 ha
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Why Provost 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 Provost Lake at any level of sampling. Sampling here has recorded water clarity, 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.
Provost Lake is a 84-acre lake in Digby County, Nova Scotia with a maximum depth of 30 feet (10-foot average).
Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 2018-08-30. 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 Provost Lake
These are the measurements NSECC publishes for Provost Lake. No A–F letter applies here: see why.
Moderate clarity, visible to about 8.3 ft. Phosphorus 11.5 µg/L. Chlorophyll-a 7.5 µg/L. TSI 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.53 m | Measured, not scored |
| Phosphorus | 11.5 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | 7.5 µg/L | Measured, not scored |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 9 m |
| Average Depth | 3.1 m |
| Surface Area | 34 ha |
Fishing Provost Lake
Nearby Lakes in Digby
Frequently asked questions about Provost Lake
Where is Provost Lake?
- Provost 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 Provost Lake?
- Provost 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: 2.5 m visibility. Phosphorus: 11.5 µg/L. Chlorophyll-a (algae): 7.5 µg/L. Maximum depth: 29.5 ft. Surface area: 83.5 acres.
Is Provost Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Provost Lake?
- Provost Lake has a maximum depth of 29.5 feet and an average depth of 10.2 feet. The lake covers 83.5 acres.
Explore Provost Lake across LakeQuality
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Where this data comes from
21 measurements from 1 monitoring station, 1983–2018. Retrieved from Nova Scotia open data (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- NS Department of Fisheries & Aquaculture
NS Department of Fisheries & Aquaculture5 samples · 2014–2018 - NSDFA
NSDFA2 samples · 2008 - Lands and Forests, NSDOE
Lands and Forests, NSDOE1 sample · 1983
Monitoring station identifiers (1)
966
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.