Where is Summit Lake?

Summit Lake is a lake in Middle Muskwa River, British Columbia. Its water-quality measurements are published by ENV and shown on this page as reported.

Summit Lake

Middle Muskwa River, British ColumbiaView map Directions

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

Clarity

6.2 m

Typical for British Columbia

Secchi · sampled 2025

Phosphorus

3.2 µg/L

Less phosphorus than most

Measured by ENV

Chlorophyll-a

0.7 µg/L

Less algae than most

Measured by ENV

Limited data

See the measurements Directions Where to stay

Summit Lake in Middle Muskwa River, British Columbia has water-quality measurements published by ENV, shown here as reported. Water clarity: 6.2 m visibility. Phosphorus: 3.2 µg/L. Chlorophyll-a (algae): 0.7 µg/L.

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Summit Lake is a lake in Middle Muskwa River County, British Columbia.

Source: the British Columbia Ministry of Environment and Parks — not the EPA Water Quality Portal, last sampled 2025-08-19. Methodology: how these readings are compared.

What Summit Lake is good for

From access and monitoring records, not editorial picks.

Clear water20.2 ft of visibility

Swimming conditions

No reading

Limited data

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

Whether Summit 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 Summit Lake

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

Crystal clear, you can see 20.2 ft down. Phosphorus 3.2 µg/L. Chlorophyll-a 0.7 µg/L. TSI 27.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	6.15m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	3.2µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	0.7µg/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.	27	Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic

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

Ask about Summit Lake

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

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Stays near Summit Lake

Compare lakeside cabins, hotels, and vacation rentals near Summit Lake in Middle Muskwa River, British Columbia — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

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Fishing Summit Lake

→ Summit Lake fishing regulations (limits, seasons, special rules)

Nearby Lakes in Middle Muskwa River

Muncho Lake9.6 m clear45.9 miView →Morrison Lake246.9 miView →Moberly Lake1.8 m clear223 miView →Babine Lake5.3 m clear270.2 miView →Stuart Lake4.9 m clear—View →Charlie Lake1.9 m clear210.9 miView →

Frequently asked questions about Summit Lake

Where is Summit Lake?: Summit Lake is a lake in Middle Muskwa River, British Columbia. Its water-quality measurements are published by ENV and shown on this page as reported.
What is the water quality of Summit Lake?: Summit Lake in Middle Muskwa River, British Columbia has water-quality measurements published by ENV, shown here as reported. Water clarity: 6.2 m visibility. Phosphorus: 3.2 µg/L. Chlorophyll-a (algae): 0.7 µg/L.
Is Summit Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.