Cost and Performance Report - Evaluating the Longevity and Hydraulic Performance of Permeable Reactive Barriers at Department of Defense Sites
Final technical rept.
BATTELLE MEMORIAL INST COLUMBUS OH
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The U.S. Department of Defense DOD Strategic Environmental Research and Development Program SERDP and Environmental Security Technology Certification Program ESTCP sponsored a project to assess performance and longevity issues at DOD permeable reactive barrier PRIB sites. The goal of this project was to evaluate short- and long-term performance issues associated with permeable reactive barriers PRBs installed at several United States Department of Defense DoD sites, A PRB is a passive, in situ technology, in which natural groundwater flow brings contaminants into contact with a reactive or adsorptive material that removes the dissolved contaminants and protects down gradient receptors. Therefore, PRBs have potentially lower life cycle costs compared to an equivalent pump-and-treat system. The key regulatory driver for the technology is the proven ability of common barrier materials, such as elemental iron, to meet groundwater cleanup standards for many common contaminants, including chlorinated solvents and certain heavy metals. Regulatory interest in this project was driven by the two challenges involved in implementing PRBs, namely, their longevity and hydraulic performance. The Strategic Environmental Research and Development Program SERDP and Environmental Security Technology Certification Program ESTCP sponsored this project. The Naval Facilities Engineering Service Center NFESC was the lead agency for the DoD project. Eattelle, under contract to NFESC, planned and implemented the technical scope and has prepared this report to summarize the results.
- Water Pollution and Control