Big Bar Lake
Big Bar Creek, 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
Big Bar Lake in Big Bar Creek, 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: 5 m visibility. Phosphorus: 3.5 µg/L. Chlorophyll-a (algae): 2 µg/L.
- Clarity
- 5 m
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Why Big Bar 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 Big Bar 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. 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.
Big Bar Lake is a lake in Big Bar Creek County, British Columbia.
Source: the British Columbia Ministry of Environment and Parks — not the EPA Water Quality Portal, last sampled 2017-05-04. Grade methodology: LakeQuality methodology.
What Big Bar Lake is good for
From access and monitoring records, not editorial picks.
- Clear water16.4 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 Big Bar Lake
These are the measurements ENV publishes for Big Bar Lake. No A–F letter applies here: see why.
Crystal clear, you can see 16.4 ft down. Phosphorus 3.5 µg/L. Chlorophyll-a 2 µg/L. TSI 32.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5 m | Measured, not scored |
| Phosphorus | 3.5 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | 2 µg/L | Measured, not scored |
| Trophic State Index (TSI) | 32 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Fishing Big Bar Lake
Nearby Lakes in Big Bar Creek
Frequently asked questions about Big Bar Lake
Where is Big Bar Lake?
- Big Bar Lake is a lake in Big Bar Creek, 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 Big Bar Lake?
- Big Bar Lake in Big Bar Creek, 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: 5 m visibility. Phosphorus: 3.5 µg/L. Chlorophyll-a (algae): 2 µg/L.
Is Big Bar Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Explore Big Bar Lake across LakeQuality
More lakes in British Columbia
Other Lakes in British Columbia
Oligotrophic Lakes in British Columbia
Where this data comes from
3 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-bc3 samples · 2017
Monitoring station identifiers (1)
E207266
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.