Mabel Lake
Upper Shuswap, 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
Mabel Lake in Upper Shuswap, 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: 12.8 m visibility. Phosphorus: 3.2 µg/L. Chlorophyll-a (algae): 0.6 µg/L.
- Clarity
- 12.8 m
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Why Mabel 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 Mabel 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.
Mabel Lake is a lake in Upper Shuswap County, British Columbia.
Source: the British Columbia Ministry of Environment and Parks — not the EPA Water Quality Portal, last sampled 2025-08-28. Grade methodology: LakeQuality methodology.
What Mabel Lake is good for
From access and monitoring records, not editorial picks.
- Clear water41.8 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 Mabel Lake
These are the measurements ENV publishes for Mabel Lake. No A–F letter applies here: see why.
Crystal clear, you can see 41.8 ft down. Phosphorus 3.2 µg/L. Chlorophyll-a 0.6 µg/L. TSI 23.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 12.75 m | Measured, not scored |
| Phosphorus | 3.2 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | 0.6 µg/L | Measured, not scored |
| Trophic State Index (TSI) | 23 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Fishing Mabel Lake
Nearby Lakes in Upper Shuswap
Frequently asked questions about Mabel Lake
Where is Mabel Lake?
- Mabel Lake is a lake in Upper Shuswap, 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 Mabel Lake?
- Mabel Lake in Upper Shuswap, 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: 12.8 m visibility. Phosphorus: 3.2 µg/L. Chlorophyll-a (algae): 0.6 µg/L.
Is Mabel Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Explore Mabel Lake across LakeQuality
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Oligotrophic Lakes in British Columbia
Where this data comes from
100 measurements from 2 monitoring stations, 2017–2025. 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-bc100 samples · 2017–2025
Monitoring station identifiers (2)
05001170500118
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.