Snohomish County Water Department

Find Snohomish County Washington water departments, districts, authorities, boards, and services. Water departments are municipal utilities that provide information on drinking water, treatment plants, sewage treatment, conservation and testing.


Alderwood Water Department 3626 156th Street Southwest Lynnwood WA 98087 425-741-7900


Edmonds Water Department 121 5th Avenue North Edmonds WA 98020 425-771-0241

Snohomish County Water Department 3000 Rockefeller Avenue Everett WA 98201 425-388-3331

Water Departments by City

What is a Water Department?

A water department is a utility which provides water and sometimes sewage services in a given community. This department may also be responsible for managing and operating wastewater treatment facilities, as well as maintaining and repairing water delivery lines and other infrastructure.

This department may be an independent agency of local or state government, or it may be combined within another, larger government department such as a department of public works. In either case, a water department is responsible for providing the community with safe, reliable water for drinking, cooking, washing and other purposes. Some departments add chlorine or other chemicals to the water supply to reduce the growth of organisms or render it safer to use.