Big Heart Lake
King County, Washington176 acresView mapDirections
No nutrient or algae sampling on record from Washington Ecology for this lake.
Big Heart Lake in King County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Surface area: 176 acres.
Big Heart Lake is a 176-acre lake in King County, Washington.
Source: EPA Water Quality Portal sampling records, WA Ecology. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Big Heart Lake 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.
Water quality measurements for Big Heart Lake
These are the measurements Washington Ecology publishes for Big Heart 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. TSI undefined.
Ask about Big Heart Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
176 acres
Shoreline
3.7 mi
No bathymetric survey has been published for Big Heart Lake, so its depth is not documented here.
Stays via Stay22
Stays near Big Heart Lake
Compare lakeside cabins, hotels, and vacation rentals near Big Heart Lake in King 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.
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Fishing Big Heart Lake
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Frequently asked questions about Big Heart Lake
Where is Big Heart Lake?
- Big Heart Lake is a lake in King County, Washington. Its water-quality measurements are published by Washington Ecology and shown on this page as reported.
What is the water quality of Big Heart Lake?
- Big Heart Lake in King County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Surface area: 176 acres.
Is Big Heart Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
Measurements for Big Heart Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.