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COST ANALYSIS OF PERMEABLE REACTIVE BARRIERS FOR REMEDIATION OF GROUND WATER
Citation:
Puls*, R W. COST ANALYSIS OF PERMEABLE REACTIVE BARRIERS FOR REMEDIATION OF GROUND WATER. Presented at 3rd Intl. Conf. on Remediation of Chlorinated and Recalcitrant Compounds, Monterey, CA, 05/20-23/2002.
Description:
ABSTRACT
Permeable reactive barriers (PRB's) are an emerging, alternative in-situ approach for remediating contaminated groundwater that combine subsurface fluid flow management with a passive chemical treatment zone. PRB's are a potentially more cost effective treatment option at several sites for a variety of contaminants, such as chlorinated solvent compounds, arsenic, chromium, and uranium due to lower operation and maintenance costs associated with long-term monitoring and performance. Several challenges present themselves in making reliable and fair cost assessments with new, innovative, in situ remedial technologies. These include the following: lack of consistent cost data from site to site; differences in cost accounting for "commercial" versus publically funded pilot and demonstration sites; hydrogeochemical variability of sites; methods used for unit cost comparisons among different technologies; long-term monitoring costs; and relatively short (< 6 years) lifetime of the technology. This presentation will summarize data from a recently published report which evaluated cost data for 22 sites where PRB's have been installed. It will also provide more in-depth analysis of two sites(U.S. Coast Guard site in Elizabeth City, North Carolina; Denver Federal Center, Lakewood, Colorado), where EPA/ORD has compiled extensive data on long-term performance of these two PRB'S.
This is an abstract of a proposed presentation and does not necessarily reflect EPA policy.