Where is Alouette Reservoir?

Alouette Reservoir is a lake in Lower Fraser, British Columbia. Its water-quality measurements are published by ENV and shown on this page as reported.

Alouette Reservoir

Lower Fraser, British ColumbiaView map Directions

ENV publishes the water-quality measurements for Alouette Reservoir. Here is what has been measured.

Phosphorus

4.1 µg/L

Less phosphorus than most

Measured by ENV

Chlorophyll-a

2.1 µg/L

Typical for British Columbia

Measured by ENV

Limited data

See the measurements Directions Where to stay

Alouette Reservoir in Lower Fraser, British Columbia has water-quality measurements published by ENV, shown here as reported. Phosphorus: 4.1 µg/L. Chlorophyll-a (algae): 2.1 µg/L.

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Alouette Reservoir 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 2026-08-19. 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 Alouette Reservoir 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 Alouette Reservoir

These are the measurements ENV publishes for Alouette Reservoir, 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 4.1 µg/L. Chlorophyll-a 2.1 µg/L. TSI 31.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)		No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	4.1µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	2.1µg/L	Measured, 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.	31	Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic

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

Ask about Alouette Reservoir

Answers come straight from the public measurements and survey records on this page.

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Fishing Alouette Reservoir

→ Alouette Reservoir fishing regulations (limits, seasons, special rules)

Nearby Lakes in Lower Fraser

Rolley Lake7.2 miView →Mike Lake8.8 miView →Hatzic Lake14.2 miView →Deer Lake1.9 m clear—View →

Frequently asked questions about Alouette Reservoir

Where is Alouette Reservoir?: Alouette Reservoir is a lake in Lower Fraser, British Columbia. Its water-quality measurements are published by ENV and shown on this page as reported.
What is the water quality of Alouette Reservoir?: Alouette Reservoir in Lower Fraser, British Columbia has water-quality measurements published by ENV, shown here as reported. Phosphorus: 4.1 µg/L. Chlorophyll-a (algae): 2.1 µg/L.
Is Alouette Reservoir safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.