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LakeQuality

Swan Lake

Victoria, British ColumbiaView mapDirections

NR
Not rated

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.

Water temp
No reading
No gauge
Clarity
1 m
Secchi · sampled 2026
Level
No reading
No gauge
Trend
No reading
Not enough history
  • Limited data

Swan Lake in Victoria, 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 m visibility. Phosphorus: 219 µg/L. Chlorophyll-a (algae): 25.1 µg/L.

Clarity
1 m
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Why Swan 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 Swan 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.

Swan Lake is a lake in Victoria County, British Columbia.

Source: the British Columbia Ministry of Environment and Parks — not the EPA Water Quality Portal, last sampled 2026-08-05. Grade methodology: LakeQuality methodology.

Swimming Safety

Not rated

Limited data

The letter is not a swimming clearance. Check local advisories before you swim.

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Water quality measurements for Swan Lake

These are the measurements ENV publishes for Swan Lake. No A–F letter applies here: see why.

Murky, only visible to about 3.4 ft. Phosphorus 219 µg/L. Chlorophyll-a 25.1 µg/L. TSI 68.

MetricValueGrade
Water Clarity (Secchi Depth)1.04 mMeasured, not scored
Phosphorus219 µg/LMeasured, not scored
Chlorophyll-a (Algae)25.1 µg/LMeasured, not scored
Trophic State Index (TSI)68Eutrophic

High nutrients, frequent algae, reduced clarity

Fishing Swan Lake

Nearby Lakes in Victoria

Frequently asked questions about Swan Lake

Where is Swan Lake?

Swan Lake is a lake in Victoria, 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 Swan Lake?

Swan Lake in Victoria, 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 m visibility. Phosphorus: 219 µg/L. Chlorophyll-a (algae): 25.1 µg/L.

Is Swan Lake safe to swim in?

The letter is not a swimming clearance. Check local advisories before you swim.

Eutrophic Lakes in British Columbia

Where this data comes from

55 measurements from 1 monitoring station, 2025–2026. 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 Parksenmods-bc55 samples · 2025–2026
Monitoring station identifiers (1)
  • E207364

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.