Trout Lake
Duncan Lake, British ColumbiaView 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.
- Limited data
Trout Lake in Duncan Lake, British Columbia has water-quality measurements published by ENV and no A–F letter. The letter's EPA reference conditions stop at the US border. Water clarity: 16.3 m visibility. Chlorophyll-a (algae): 0.6 µg/L.
- Clarity
- 16.3 m
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Why Trout 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 British Columbia, so the scale cannot be applied to Trout 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. ENV publishes these measurements directly, and everything below that has been measured is reported on this page as ENV reports it.
Monitoring: the British Columbia Ministry of Environment and Parks. Read the full grading methodology.
Trout Lake is a lake in Duncan Lake County, British Columbia.
Source: the British Columbia Ministry of Environment and Parks — not the EPA Water Quality Portal, last sampled 2017-09-20. Grade methodology: LakeQuality methodology.
What Trout Lake is good for
From access and monitoring records, not editorial picks.
- Clear water53.3 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 Trout Lake
These are the measurements ENV publishes for Trout Lake. No A–F letter applies here: see why.
Crystal clear, you can see 53.3 ft down. Chlorophyll-a 0.6 µg/L. TSI 22.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 16.25 m | Measured, not scored |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 0.6 µg/L | Measured, not scored |
| Trophic State Index (TSI) | 22 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Fishing Trout Lake
Nearby Lakes in Duncan Lake
Frequently asked questions about Trout Lake
Where is Trout Lake?
- Trout Lake is a lake in Duncan Lake, British Columbia. Its water-quality measurements are published by ENV, 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 Trout Lake?
- Trout Lake in Duncan Lake, British Columbia has water-quality measurements published by ENV and no A–F letter. The letter's EPA reference conditions stop at the US border. Water clarity: 16.3 m visibility. Chlorophyll-a (algae): 0.6 µg/L.
Is Trout Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Explore Trout Lake across LakeQuality
More lakes in British Columbia
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Oligotrophic Lakes in British Columbia
Where this data comes from
5 measurements from 1 monitoring station, 2017. Retrieved from British Columbia EnMoDS (not the EPA Water Quality Portal) on 2026-09-06.
Collected and reported by
- British Columbia Ministry of Environment and Parks
enmods-bc5 samples · 2017
Monitoring station identifiers (1)
0500129
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.