ESOI does not accept free liquids at the facility. Natural rainfall and moisture entrained within the waste are the only sources of aqueous phased substances within the perimeter of the cell. Prevention of any queous phase migration is the function of the liner system, and to accomplish this the facility has undergone constant upgrades and improvements since acquisition by ESOI. The first composite lined cell was constructed in 1983. The first double lined cell was constructed in 1987, which met the then newly promulgated federal design requirements. ESOIís subsequent cells have been of state-of-the-art design, utilizing double synthetic liners with a leak detection and leachate collection systems. Cell caps have been designed to eliminate infiltration of precipitation by using clay/HDPE composite systems. By preventing infiltration, while continuing the removal of leachate, the landfill cell eventually becomes void of liquid.
The following diagram is a representation of the synthetic state-of-the-art liner system used for the construction of ESOIís RCRA Subtitle C Cell M landfill. The thickness of the liner system is about 13 feet, with 9 feet of recompated clay at its base.
The following diagram is a representation of the synthetic state-of-the-art liner system used to cap ESOIís RCRA Subtitle C landfills.
Landfill Unit Leachate Collection System
The following diagram is a representation of the leachate collection system used for the removal of leachate from ESOIís RCRA Subtitle C landfills. The leachate system is protected from clogging by a geotextile fabric filter and from physical disturbance by a 6-inch soil protective layer. The leachate collection system has been designed in accordance with EPAís guidance recommendations.