GCE wrote the Solid Waste Association of North America (SWANA) Landfill Gas Manual of Practice (MOP) which is an indicator of the breadth and depth of our knowledge and experience in the operations and maintenance of landfill gas collection/ recovery/control systems, flares, and leachate and condensate control systems. This comprehensive MOP is currently available for sale through SWANA to landfill owner/operators across the United States.