King County provides an array of services and information to help with lake management, monitoring, and enjoyment. 

• View a list of the Lakes in King County

Water Quality Data

• Major lake monitoring graphs and data
  • Major lake buoy data
• Small lake monitoring graphs and data
• Swimming beach monitoring

Recreation

• Small Lakes Recreation Guide

Projects and Programs

• The Lake Stewardship Program
  King County's volunteer-based water quality monitoring program
• Combined sewer overflow monitoring and real-time map
• Shoreline Master Program
• Stream monitoring 
• Toxic algae monitoring

References and Resources

• King County iMap  
  Note: this link will open a new browser window
  Zoom in to your area of interest. In the layers list, click "Hydrography" and the layers you need such as "Lakes and large rivers"
• Lake fact sheets 
  Information on various lake-related topics and concerns
• Glossary of lake terms

Related information

• King County rivers, streams and watersheds
• Puget Sound marine topics
• King County wetlands

Related agencies

• Department of Natural Resources and Parks
• Water and Land Resources Division
• Wastewater Treatment Division

News and announcements