INDUSTRIAL WASTE CONTAINMENT IN PERMITTED ON-SITE LANDFILL CELLS IS A COMMON PRACTICE FOR CONTINUOUS WASTE STREAM MANAGEMENT. Commercial industries such as coal power plants and pulp, paper, and packaging facilities use this approach to manage waste. In addition to new cell construction, closure of inactive landfill cells, unpermitted disposal areas, or former dump sites is a major sector of the environmental market. Construction of low-permeable soil or synthetic covers to eliminate infiltration into waste has been a solution incorporated into remedial actions over the past four decades.

Proper sequencing of the intricate liner system installation and earth moving drives the overall project success. Cell construction typically includes a combination of structural fill, low permeability clay liner, high-density polyethylene (HDPE) geomembrane, geosynthetic clay liner, geo-composite, and cover sand. In addition to new cell construction, AST has constructed over 150 acres of closure systems at different types of facilities ranging from unpermitted hazardous waste disposal sites to permitted municipal landfills. These closure systems have varied in design but contain some of the same components used with new landfill cell construction.

AST has moved more than 1 million cubic yards of waste and soil for landfill portfolio projects and has constructed approximately 50 acres of multi-layered landfill cells for the pulp and paper industry over the past 20 years.