One way to classify secondary containment of stored industrial liquids is either permanent or portable. Both routinely use the same type of geomembrane as the primary containment layer. In this blog, we will compare the two applications and look at the principal ways geomembrane use is the same and how it differs in permanent vs. portable secondary containment.

Federal regulations requiring safeguards against spills of bulk liquid storage (most commonly petroleum) have been in effect since the Clean Water Act was passed in 1972. Geomembranes are used to line bermed areas that have been created to provide sufficient storage volume for spill containment and associated rainfall. There are important properties that determine which geomembranes are most suited to these critical applications: