Current Job Openings: Operating Engineers IET often has need for chemical process design engineers at various levels of experience. For more information, send a resume to the email address below. Integrated Environmental Technologies, LLC 1935 Butler Loop Richland, WA 99354 For immediate information contact: William J. Quapp Vice President of Project Development Idaho Office: 208-535-9001 Main Office: 509-946-5700 wjquapp@inentec.com