The Department of Health (DOH), Office of Drinking Water, has
authorized Washington Certification Services at Green River College
to maintain a list of certified Backflow Assembly Testers (BAT) that
may provide testing services to the public. Only certified BATs that
have authorized disclosure of this information are listed. There is
no implication of preference, nor does this list constitute
endorsement by Green River College (GRC) or DOH.
The Hire a BAT List is believed to be accurate and is updated
frequently. However, GRC and DOH assume no responsibility for
errors in or for the use of the information provided. Persons or
entities relying on any information obtained from the Hire a BAT
List do so at their own risk.
This list is considered public information and may be distributed or
copied. However, the list may not be used for commercial purposes.
See Disclaimer. The search results below may be printed.
To be added to the Hire a BAT List, or to make a change to information already on the list, use the
Hire a BAT List Authorization Form.