IET is a leader in the landfill operation and maintenance industry. Providing services ranging from landfill gas management to leachate collection system optimization to installing pumps, panels, and controls, IET is your one-stop service provider to meet all your landfill operation and maintenance needs. If it can happen on a landfill – we’ve seen it. IET’s staff has over 150 years of combined solid waste experience in engineering, environmental science, and construction management. Because of this unique combination of experience, we can provide innovative and cost-effective solutions to landfill operations' challenges - that other service firms simply can't.