Performance Site Environmental specializes in landfill capping, closures and cell expansions of 10 acres or less (subtitle D and subtitle C). Our primary experience is in industrial and municipal landfills.



Clay Cap Construction Pre 76 Closure Design
For landfills closed before 1976, Performance Site Environmental can use native clay to create a 10-7 permeability cap to help prevent leachate concerns.

Clay Cap with GCLs or HDPE Liner
Performance Site Environmental can add a GCL or HDPE liner to an existing landfill to prevent leachate concerns.

Leachate Collection Piping
Performance Site Environmental can install High Density Polyethylene (HDPE) recovery piping in existing landfills to pick up groundwater before it migrates off-site. This piping is often used with cut-off walls and barrier walls to control groundwater migration.

Limited New Cell Expansion (under 10 acres)
Performance Site Environmental offers complete construction services for new landfills or landfill expansions under 10 acres, including:

• Soil excavation
• Installation of a GCL or HDPE liner
• Installation of leachate collection piping:
• Final grade installation
• (Gas recovery systems) fugitive gas collection systems
• Fugitive gas emissions
• Well connections
• Flare installation