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King County Courthouse Third Avenue entrance closed until January 1, 2020. Please use alternative routes.  
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High school students (grades 9-12) learn how wastewater can be recycled into reusable water, energy, and a natural soil amendment for plants called Loop. Students discuss responsible water use, products we use, and how everyday choices can help protect Puget Sound.

Wastewater tours focus on the following topics:

  • Water cycle and nutrient cycle
  • Wastewater treatment and human health
  • Human impacts to water systems
  • Pollution prevention and water conservation
Cost Free
Dates/Times Vary based on staff availability
Tour length 2 hours
Chaperone ratio 1 chaperone per 10 students
Scheduling All tours require pre-registration, at least two weeks in advance.
Dress code Tours take place outside and in an industrial setting; all visitors must dress appropriately and wear long pants and closed-toed shoes.
Accessibility All participants must be able to walk approximately 1 mile and travel up and down multiple levels of stairs. Advance notice is required for accessible tours and accommodations.
Other Tour groups must start and end the tour together. It is not possible to leave early.
Register for a field trip online, via the King County Wastewater Education website.
Learn about King County's Wheels to Water Program, which provides field trip bus transportation to Brightwater for qualifying schools.
Home school groups, Scout troops, and other non-school-affiliated groups of youth should register for an upcoming Saturday general public treatment plant tour. Visit the Brightwater Center events page for a list of upcoming tour opportunities.