WEFTEC – Connecting the World to Clean Water

WEFTEC is the world’s most comprehensive gathering of water quality professionals and thought leaders, featuring the sector’s leading conference program, an extensive exhibition showcasing the field’s most cutting-edge solutions, and a variety of valuable networking opportunities.

94th Annual Technical Exhibition & Conference
Chicago, Illinois USA | McCormick Place
Conference: October 16 - 20, 2021
Exhibition: October 18 - 20 , 2021
Online via WEFTEC Connect


WEF thanks our sponsors for their extraordinary support of WEFTEC programs and events. 

View Sponsors

Media Information

The WEFTEC online press room is your resource for the latest news and information on the world's largest annual water quality event.

Learn More

About WEF

Every year, the Water Environment Federation brings you WEFTEC — The Water Quality Event.

Learn More

WEF Membership

Gain access to water knowledge, valuable networking opportunities, and member benefits at WEFTEC.

Join WEF