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Water System Data for Download

These files contain public water system general and source information for Washington State Group A and Group B water systems. There are approximately 4,193 Group A systems and approximately 13,071 Group B systems.

Updated 02/09/15. The files are available in two formats. Microsoft Excel and tab delimited format (text files). Note, some files are large. Expect a longer download time.

Excel files:

Tab delimited format (text files)

Directions: These files cannot be viewed correctly until imported into a database such as Microsoft Access. To download these files, right click your mouse on the links below and save the text files to a directory on your hard drive. Then import the files into your database.

For questions regarding the files on this page, e-mail the Office of Drinking Water.

Public Disclosure Statement

The information provided in this website is believed to be accurate and reliable. However, the Washington State Department of Health (DOH) assumes no responsibility for errors in the content of the information provided. Further, DOH assumes no responsibility for the use of the information provided. Information provided is considered public information and may be distributed or copied.