Performance data for treatment technologies such as permeable reactive barriers, chemical oxidation, and chemical or biological reductive dechlorination suggests there are factors that may consistently impact the effectiveness of groundwater remediation at sites with volatile organic contamination. Aquifer and remedy geochemistry, site characterization, and implementation issues are factors that have impacted groundwater remedy performance at a number of sites. After illustrating these performance factors through case studies, we will cover tips and tricks that can be used to increase the likelihood of a successful groundwater remedy. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/GW-Remedy-Selection_040225/