"Water pollution and control." . . "Economic analysis." . . . . . "Economic analysis of the implementation of permeable reactive barriers for remediation of contaminated ground water"@en . . . . . "Economic Analysis of the Implementation of Permeable Reactive Barriers for Remediation of Contaminated Ground Water"@en . . . "This report presents an analysis of the cost of using permeable reactive barriers to remediate contaminated ground water. When possible, these costs are compared with the cost of pump-and-treat technology for similar situations. Permeable reactive barriers are no longer perceived as an innovative remediation technology but are rapidly maturing and may be considered as a standard remediation technology, similar to pump-and-treat. PRB cost information was obtained from a variety of sources, including reports, surveys, and interviews. Costs were broken out into four general categories: site characterization, design, construction, and operation and maintenance. Subcategories within these four further detailed the costs."@en . . . . . . . . . . . . . . . . "United States. Environmental Protection Agency." . . "Reactivities." . . "Economics and cost analysis." . . "DYNAMAC CORP ROCKVILLE MD." . . "Barriers." . . "Ground water." . . "Contamination." . .