Major Lakes Monitoring

The Lakes Monitoring Program is part of the King County Department of Natural Resources, Water and Land Resources Division. We are committed to monitoring the water quality of the County's lakes to ensure their continued health, as well as the health of the public who utilize the lake's many resources. We invite you to learn more about our program by looking through the pages listed below. This site contains detailed graphs of water quality data, photographs of water sampling, and general information about the water quality of King County's lakes

Fish Kill Information

Read about the recent three-spine stickleback deaths.

What is that yellow scum on the water?

Read about the yellow scum.

Other Lake Resources

View presentations on lakes topics given by King County staff on the Science Seminar Web site.

King County Lake Monitoring Buoy Program

King County Swimming Beach Monitoring Program Web site

US Army Corps of Engineers Lake Washington elevation Web page

US Geological Survey Lake Sammamish elevation Web page

US Army Corps of Engineers Lake Washington Hydrograph Web page

King County Streams Monitoring Program Web site

King County Small Lakes Stewardship Program Web site

King County Aquatic Plants Web page