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Many King County facilities are closed to the public. Learn how to access services remotely or while following social distancing guidelines.  
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The Carnation Treatment Plant runs 24 hours a day, seven days a week. State licensed operators are on site daily performing analysis on processes, maintaining proper water chemistry and biology, and optimizing the plant's operations.

Additional King County staff at the South Treatment Plant in Renton help maintain operations of the plant.

Learn more about career opportunities in WTD.

rsz_14812942859_ca38126547_zLaboratory employees run tests on the water to maintain EPA and DOE standards.

View more photos on our Flickr site  .

Contact us

24 hour emergency and odor reporting:   206-263-1760
Administration:  206-263-1760 

4405 Larson Ave.
Carnation, WA 98041

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