Folly Lake
Colchester, Nova Scotia79 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.
- 110 ft max depth
- Limited data
Folly Lake in Colchester, 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: 8 m visibility. Chlorophyll-a (algae): 1.4 µg/L. Maximum depth: 109.9 ft. Surface area: 195 acres.
- Clarity
- 8 m
- Max depth
- 33.5 m
- Area
- 79 ha
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Why Folly 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 Folly Lake at any level of sampling. Sampling here has recorded water clarity and algae (chlorophyll-a), but not phosphorus.
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.
Folly Lake is a 195-acre lake in Colchester County, Nova Scotia with a maximum depth of 110 feet.
Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 2018-09-10. Grade methodology: LakeQuality methodology.
What Folly Lake is good for
From access and monitoring records, not editorial picks.
- Clear water26.2 ft of visibility
- Deep water109.9 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 Folly Lake
These are the measurements NSECC publishes for Folly Lake. No A–F letter applies here: see why.
Crystal clear, you can see 26.2 ft down. Chlorophyll-a 1.4 µg/L. TSI 32.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8 m | Measured, not scored |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 1.4 µg/L | Measured, not scored |
| Trophic State Index (TSI) | 32 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 33.5 m |
| Surface Area | 79 ha |
Fishing Folly Lake
Nearby Lakes in Colchester
Frequently asked questions about Folly Lake
Where is Folly Lake?
- Folly Lake is a lake in Colchester, 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 Folly Lake?
- Folly Lake in Colchester, 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: 8 m visibility. Chlorophyll-a (algae): 1.4 µg/L. Maximum depth: 109.9 ft. Surface area: 195 acres.
Is Folly Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Folly Lake?
- Folly Lake has a maximum depth of 109.9 feet. The lake covers 195 acres.
Explore Folly Lake across LakeQuality
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Where this data comes from
2 measurements from 1 monitoring station, 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 & Aquaculture1 sample · 2018 - NS Dept. of Fisheries
NS Dept. of Fisheries1 sample · 1990 - Lands and Forests
Lands and Forests1 sample · 1973
Monitoring station identifiers (1)
10
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.