Surface water management (SWM) provides a variety of lake monitoring and management services, including:

  • Monitoring Water Quality and Toxic Algae
  • Protecting & Restoring Lake Health
  • Controlling Invasive Plants
  • Assisting lake groups and residents
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Protect Your Lake - Be LakeWise

 Your lake needs your help to stay healthy. Find out small changes you can make on your property to protect your lake and be LakeWise.

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Algae & Toxic Algae
Volunteer Lake Monitoring
  • Volunteer Opportunities and Information
  • Resources for Current Volunteers

Special Projects

Living Near Lakes
Snohomish County Lake Information & Data