Lewis performs both interim maintenance and permanent closure work on surface impoundments and landfills . Our technical staff of project managers and OSHA certified construction support group provides a combined skill set which includes surveying, heavy equipment operation, stormwater management systems installation and site restoration to provide our clients with superior services for regulatory compliance in the management of lagoons, settling ponds and industrial waste landfills. Our extensive experience in the installation of soil, clay and synthetic liners for final capping of surface impoundments and landfills provides our clients with complete turnkey construction services.