Oathill Lake
Halifax, Nova Scotia5 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.
- 28 ft max depth
- Limited data
Oathill Lake in Halifax, 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: 5.2 m visibility. Phosphorus: 11.3 µg/L. Chlorophyll-a (algae): 2.8 µg/L. Maximum depth: 28 ft. Surface area: 12.1 acres.
- Clarity
- 5.2 m
- Max depth
- 8.5 m
- Area
- 5 ha
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Why Oathill 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 Oathill 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.
Oathill Lake is a 12-acre lake in Halifax County, Nova Scotia with a maximum depth of 28 feet (13-foot average).
Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 2010-07-21. Grade methodology: LakeQuality methodology.
What Oathill Lake is good for
From access and monitoring records, not editorial picks.
- Clear water16.9 ft of visibility
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Oathill Lake
These are the measurements NSECC publishes for Oathill Lake. No A–F letter applies here: see why.
Crystal clear, you can see 16.9 ft down. Phosphorus 11.3 µg/L. Chlorophyll-a 2.8 µg/L. TSI 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.15 m | Measured, not scored |
| Phosphorus | 11.3 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | 2.8 µg/L | Measured, not scored |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 8.5 m |
| Average Depth | 3.8 m |
| Surface Area | 5 ha |
Fishing Oathill Lake
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Frequently asked questions about Oathill Lake
Where is Oathill Lake?
- Oathill Lake is a lake in Halifax, 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 Oathill Lake?
- Oathill Lake in Halifax, 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: 5.2 m visibility. Phosphorus: 11.3 µg/L. Chlorophyll-a (algae): 2.8 µg/L. Maximum depth: 28 ft. Surface area: 12.1 acres.
Is Oathill Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Oathill Lake?
- Oathill Lake has a maximum depth of 28 feet and an average depth of 12.5 feet. The lake covers 12.1 acres.
Explore Oathill Lake across LakeQuality
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Where this data comes from
11 measurements from 1 monitoring station, 1971–2010. Retrieved from Nova Scotia open data (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Soil and Water Conservation Society of Metro
Soil and Water Conservation Society of Metro3 samples · 1990 - NSDFA
NSDFA1 sample · 2010 - NS Dept. of Fisheries
NS Dept. of Fisheries1 sample · 1993 - Submitting organization not recorded for these samples1 sample · 1971
Some records reached the portal without a submitting organization. Those samples are counted above but not attributed.
Monitoring station identifiers (1)
23
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.