TCA Contacts

For information about joining as a member, or to check on your membership status:

For questions about Thornton Creek Alliance or to tell TCA something you think we should know, contact Jeff Laufle at

Have a public question for the whole watershed? Post your question to TCA’s Facebook page at:

Our mailing address:

Thornton Creek Alliance
P.O. Box 25690
Seattle, WA 98165-1190