Lake Kathleen
King County, Washington48 acresView mapDirections
No nutrient or algae sampling on record from Washington Ecology for this lake.
- Impaired · Nutrients (phosphorus, nitrogen)
Lake Kathleen in King County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Surface area: 48 acres.
Lake Kathleen is a 48-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. Lake Kathleen is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Lake Kathleen 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 Lake Kathleen
These are the measurements Washington Ecology publishes for Lake Kathleen, 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 Kathleen
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
48 acres
Shoreline
1.3 mi
No bathymetric survey has been published for Lake Kathleen, so its depth is not documented here.
Stays via Stay22
Stays near Lake Kathleen
Compare lakeside cabins, hotels, and vacation rentals near Lake Kathleen 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.
Top-rated places to stay near Lake Kathleen
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Fishing Lake Kathleen
EPA Impairment Status
Lake Kathleen is officially listed as impaired under Clean Water Act §303(d) in the 2018 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life.
Source: EPA ATTAINS assessment unit WA17110012000431_001_001 · Official waterbody report
Nearby Lakes in King County
Frequently asked questions about Lake Kathleen
Where is Lake Kathleen?
- Lake Kathleen 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 Lake Kathleen?
- Lake Kathleen in King County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Surface area: 48 acres.
Is Lake Kathleen safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Lake Kathleen is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
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Where this data comes from
Measurements for Lake Kathleen come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database