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LakeQuality

Sproat Lake

Alberni Inlet, British ColumbiaView mapDirections

ENV publishes the water-quality measurements for Sproat Lake. Here is what has been measured.

Phosphorus
2.9 µg/L
Less phosphorus than most
Measured by ENV
Chlorophyll-a
0.3 µg/L
Less algae than most
Measured by ENV
  • Limited data

Sproat Lake in Alberni Inlet, British Columbia has water-quality measurements published by ENV, shown here as reported. Phosphorus: 2.9 µg/L. Chlorophyll-a (algae): 0.3 µg/L.

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Sproat Lake is a lake in Alberni Inlet County, British Columbia.

Source: the British Columbia Ministry of Environment and Parks — not the EPA Water Quality Portal, last sampled 2020-11-10. Methodology: how these readings are compared.

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Sproat Lake is safe to swim in today is a call for the British Columbia Ministry of Environment and Parks and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Sproat Lake

These are the measurements ENV publishes for Sproat Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. Phosphorus 2.9 µg/L. Chlorophyll-a 0.3 µg/L. TSI 19.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)No reading

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus2.9µg/LMeasured, not scored

The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.

Chlorophyll-a (algae)0.3µg/LMeasured, not scored

The green pigment in algae — a direct measure of how much algae is in the water.

Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.19Oligotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Low nutrients, clear water. No reading is a swimming clearance.

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Frequently asked questions about Sproat Lake

Where is Sproat Lake?

Sproat Lake is a lake in Alberni Inlet, British Columbia. Its water-quality measurements are published by ENV and shown on this page as reported.

What is the water quality of Sproat Lake?

Sproat Lake in Alberni Inlet, British Columbia has water-quality measurements published by ENV, shown here as reported. Phosphorus: 2.9 µg/L. Chlorophyll-a (algae): 0.3 µg/L.

Measurements on this page ↑

Is Sproat Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Swimming on this page ↑

Where this data comes from

31 measurements from 3 monitoring stations, 2019–2020. 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-bc31 samples · 2019–2020
Monitoring station identifiers (3)
  • E267903
  • E267902
  • E267905

Canadian lakes are published with the measurements their provincial programme reports. See where the data comes from and data sources.