For questions about the King County  Swimming Beach Monitoring Program, please contact Dean Wilson, Program Manager

For questions about the Swimming Beach Web site, please contact Daniel Smith

Swimming Beach Bacteria Levels and Water Temperature

The following map depicts the locations of current swimming beach sampling stations in King County. To view the current bacteria and temperature data, either click on the map or select from the list of beaches. You can also view plots of bacteria data. Units of bacteria data are cfu/100mL. To view historical data and trends, visit our archived bacteria and temperature data page. Current beach closures, if any, are listed right hand column of this page and will appear as red dots on the map.

Andrews Bay - Seward Park
Angle Lake Beach
Clarke Beach
Echo Lake
Gene Coulon
Groveland Beach
Hidden Lake
Idylwood Beach
Idylwood Creek
John's Creek
Juanita Beach
Juanita Creek
Lake Sammamish Beach
Lake Wilderness Beach
Luther Burbank Beach
Madison Park Beach
Madrona Beach
Magnuson Beach
Magnuson Beach Off Leash Area
Matthews Beach
Meydenbauer Bay Beach
Mount Baker Beach
NE 130th Pl
Newcastle Beach
Pine Lake
Pritchard Island Beach
Rattlesnake Lake
Thornton Creek
West Green Lake

Fish Kill Information

image of three-spined stickleback

Read about the recent three-spine stickleback deaths.

Swimmer's Itch Information

Visit Public Health -Seattle & King County  Swimmer's Itch Page to learn about swimmer's itch.

Current Beach Closures:

All sampled beaches are open.

We recommend avoiding contact with water from the following creeks: John's Creek, Juanita Creek, Ravenna Creek, Idylwood Creek, and Thornton Creek.

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Updated: 9/22/2009