Lake Janus is a lake in Snohomish County, Washington. Its water-quality measurements are published by Washington Ecology and shown on this page as reported.

Lake Janus

Snohomish County, Washington28 acresView map Directions

No nutrient or algae sampling on record from Washington Ecology for this lake.

Area

28 acres

Surface area

Shoreline

1.1 mi

Measured length

See the measurements Directions Where to stay

Lake Janus in Snohomish County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Surface area: 28 acres.

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Lake Janus is a 28-acre lake in Snohomish County, Washington.

Source: EPA Water Quality Portal sampling records, WA Ecology. Methodology: how these readings are compared.

Swimming conditions

No reading

Not rated

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

Whether Lake Janus is safe to swim in today is a call for the Washington State Department of Ecology and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Lake Janus

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

No clarity data. TSI undefined.

Ask about Lake Janus

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

Lake Details

Surface area

28 acres

Shoreline

1.1 mi

No bathymetric survey has been published for Lake Janus, so its depth is not documented here.

Stays via Stay22

Stays near Lake Janus

Compare lakeside cabins, hotels, and vacation rentals near Lake Janus in Snohomish County, Washington — 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.

Top-rated places to stay near Lake Janus

Prices for Oct 16–18, 4 adults. Change dates on the map below.

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Follow Lake Janus’s readings

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Fishing Lake Janus

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

Nearby Lakes in Snohomish County

Pear Lake5.1 miView →Blanca Lake—View →Sunset Lake—View →Lake Byrne—View →Twin Lakes—View →Goat Lake—View →

Frequently asked questions about Lake Janus

Where is Lake Janus?: Lake Janus is a lake in Snohomish County, Washington. Its water-quality measurements are published by Washington Ecology and shown on this page as reported.
What is the water quality of Lake Janus?: Lake Janus in Snohomish County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Surface area: 28 acres.
Is Lake Janus safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.