Abstract: Systems for containing a fluid leaked from a pipeline include a flexible, impermeable liner such as like those comprising a coated substrate (or other impermeable liner or material) and disposed to extend along a trench for enveloping the pipeline deployed therein; and separating means disposed between the pipeline and the containment liner for containing the fluid therein; wherein the liner prevents migration of the fluid into the trench of the pipeline or surrounding environment by flowing the fluid laterally within the containment liner, system also protects the steel pipe from corrosion caused by the environment, such as groundwater. Methods for deploying the above systems are provided.

Abstract: Systems for containing a fluid leaked from a pipeline include a flexible, impermeable liner comprising a coated substrate and disposed to extend along a trench for enveloping the pipeline deployed therein; and separating means disposed between the pipeline and the liner for containing the fluid therein; wherein the liner prevents migration of the fluid into the trench by flowing the fluid laterally within the liner. Methods for deploying the above systems are provided.

Abstract: Systems for containing a fluid leaked from a pipeline include a flexible, impermeable liner comprising a coated substrate and disposed to extend along a trench for enveloping the pipeline deployed therein; and separating means disposed between the pipeline and the liner for containing the fluid therein; wherein the liner prevents migration of the fluid into the trench by flowing the fluid laterally within the liner. Methods for deploying the above systems are provided.

Abstract: Systems for containing a fluid leaked from a pipeline include a flexible, impermeable liner comprising a coated substrate and disposed to extend along a trench for enveloping the pipeline deployed therein; and separating means disposed between the pipeline and the liner for containing the fluid therein; wherein the liner prevents migration of the fluid into the trench by flowing the fluid laterally within the liner. Methods for deploying the above systems are provided.