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Liners and Geocomposites for Improved Water Management

Liners separate solids and liquids and retain liquids in order to prevent contamination. They are often used for landfills, stormwater management, mining and waste containment. A variety of high-performance materials are used to manufacture liners including:

Geosynthetic clay liner for hospital BMP in Manassas, VA


Geosynthetic Clay Liners combine geosynthetics and sodium bentonite clay to make an impermeable product.

There are two options for GCLs: Fabric Encased or Geomembrane Supported.

A Fabric Encased GCL combines a woven geotextile and sodium bentonite. The resulting product has the stabilization qualities of a woven geotextile and the permeability of clay.

The Geomembrane Supported GCL combines HDPE or LLDPE with sodium bentonite clay to produce a leak-resistant liner.


Ethylene Propylene Diene Monomer (EPDM) is very flexible and has great elongation which makes it the easiest material to handle. It is also UV, Ozone and Weather Resistant. EPDM is a great choice for decorative ponds because it is fish and pet friendly. You can also install this liner on stormwater and mining projects.


Linear Low Density Polyethylene liners (LLDPE) are flexible, have great elongation and are UV and chemical resistant. This product is an ideal choice for waste containment because the LLDPE is so durable. LLDPE is available in a smooth or textured finish.


High Density Polyethylene (HDPE) liners are durable and have superior UV and chemical resistance. Similar to LLDPE, HDPE is offered in a smooth or textured finish. HDPE is a cost-effective option for landfill lining, waste containment and stormwater ponds.

Liners are used in wet pond construction to separate soils


PVC is a trusted choice for separating water, waste, soil and chemicals because it is flexible, strong and impermeable. These liners are custom manufactured to meet site requirements which reduces the number seams and makes installation easier.

Use PVC liners for landfills, stormwater ponds, ditches, canals and mining projects.

PVC liners are available in multiple strengths including:

  • 10 Mil
  • 20 Mil
  • 30 Mil
  • 40 Mil
  • 50 Mil
  • 60 Mil

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