Geoenvironmental containment refers to practices used to prevent migration of subsurface contaminants without actively treating the contaminants. The mitigation and control of groundwater has been in the forefront of environmental policy for several decades as a result of past decisions specifically in relation to the disposal of industrial and toxic waste. With the public’s health and rising real estate prices in mind, there has been and continues to be a desire to mitigate Brownfields in the United States and abroad. The technologies developed to control contaminant migration at these sites are often insitu methods of containment.