Advantages

• The plume is remediated within the aquifer.
• Remediation is performed passively with no ongoing energy input and limited maintenance following installation.
• Surface structures are not required as part of the remediation.
• PRBs do not alter the ground-water flow system as would be the case with the pump and treat method.
• Contaminants are not brought to the surface requiring disposal costs, treatment, or measures to protect human health.
• PRBs avoid mixing of contaminated and uncontaminated ground water that would occur with a pump and treat method.