WMS is one the world's premier environmental companies. From the selection of new facilities to the final capping of existing sites, WMS utilizes the latest landfill management techniques. For example, the landfill site at the Eastern Seaboard Environmental Complex () includes a high density polyethylene (HDPE) and clay liner, a leachate collection and treatment system, a ground and surface water monitoring system, and a gas collection and control system.
WMS contributes to a post-closure fund that will finance the transformation of the ESBEC landfill into a recreation area and open green space. The Fund will also finance 10 years of post-closure maintenance fees ensuring the safety of the local community