Deer Lake
Lower Fraser, 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
Deer Lake in Lower Fraser, 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: 1.9 m visibility. Phosphorus: 17.3 µg/L. Chlorophyll-a (algae): 7.9 µg/L.
- Clarity
- 1.9 m
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Why Deer 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 Deer 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.
Deer Lake is a lake in Lower Fraser County, British Columbia.
Source: the British Columbia Ministry of Environment and Parks — not the EPA Water Quality Portal, last sampled 2018-02-15. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Deer Lake
These are the measurements ENV publishes for Deer Lake. No A–F letter applies here: see why.
Murky, only visible to about 6.2 ft. Phosphorus 17.3 µg/L. Chlorophyll-a 7.9 µg/L. TSI 49.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.9 m | Measured, not scored |
| Phosphorus | 17.3 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | 7.9 µg/L | Measured, not scored |
| Trophic State Index (TSI) | 49 | Mesotrophic |
Moderate nutrients, good water quality
Fishing Deer Lake
Nearby Lakes in Lower Fraser
Frequently asked questions about Deer Lake
Where is Deer Lake?
- Deer Lake is a lake in Lower Fraser, 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 Deer Lake?
- Deer Lake in Lower Fraser, 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: 1.9 m visibility. Phosphorus: 17.3 µg/L. Chlorophyll-a (algae): 7.9 µg/L.
Is Deer Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Explore Deer Lake across LakeQuality
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Where this data comes from
7 measurements from 1 monitoring station, 2017–2018. 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-bc7 samples · 2017–2018
Monitoring station identifiers (1)
E219178
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.