From the WEFTEC Website:

WEFTEC^®, the Water Environment Federation’s Annual Technical Exhibition and Conference, is the biggest meeting of its kind in North America and offers thousands of water quality professionals from around the world the best water quality education and training available today. Also recognized as the world’s largest annual water quality exhibition, WEFTEC’s massive show floor provides unparalleled access to the field’s most cutting-edge technologies and services. 

Stop by the Campbell Scientific booth, #4784.