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USACE - Philadelphia District
Airport Landfill Capping

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ROS Advantage:

ROS uses traditional and innovative methods and techniques to successfully complete projects. For example, ROS’ remedial action activities at the Lone Pine Landfill Superfund Site included:

  • Regrading the existing landfill to establish proper draining;
  • Construction of a soil-bentonite slurry wall;
  • Installation of multi-layer cap including a gas collection and flare system;
  • Installation of a leachate collection system and treatment plant;
  • Performance of other site improvements.
As a value engineering suggestion, ROS recommended to replace a 2-foot clay liner with the combination of a geosynthetic clay liner (GCL) and a very low-density polyethylene (VLDPE) liner. The advantages of the proposed liner system included cost savings, superior mechanical behavior when subjected to settlement, and reduced truck traffic in the community.

ROS Services

  • Single and Multi-layer Caps
  • Leachate Collection & Treatment
  • Horizontal and Vertical Liners
  • Landfill Cell Construction
  • Waste Relocation, Contouring & Grading
  • Storm water Management
  • Anchor Trenches
  • Gas Venting Systems
ROS personnel are experienced in all phases of landfill cap and cover techniques, including the installation of capping, venting, conveyance and drainage systems.
Our experience includes composite caps (widely referred to as RCRA caps) that are typically comprised of barrier, drainage, and vegetative layers. We also have installed numerous earthen or soil caps.

Leachate collection/treatment systems and gas ventilation systems, either active or passive, are often incorporated in our landfill cap projects.

ROS has capped and contained sites contaminated with both organic and inorganic compounds including chromium, lead, arsenic, coal tar, and BTEX. In each case, ROS delivered the safe, sound, and cost-effective solutions our clients required.

PROVIDING SELF-PERFORMED ENVIRONMENTAL REMEDIATION SERVICES
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