NGWA Groundwater week is a 3 day event being held from 6th December to the 8th December 2016 in Las Vegas The Groundwater Expo has changed its name to Groundwater Week in 2016. A new name for a new, bold, and fresh direction for the industry’s leading annual event.. The biggest groundwater industry event of the year! So come to booth 179 and see all the products available from DAB Pumps & Tesla submersible motors and there new Resin filled 4" & 6" Submersible motors.