AbstractNo one remedial technology is best suited to treat every groundwater contaminant plume. This article describes how pilot testing and analytical evaluation targeted selection of two treatment technologies, UV peroxidation and air stripping, to be used in series to create a synergistic, cost‐effective pump‐and‐treat system for the removal of VOCs from groundwater.Pilot plant size equipment was employed to treat the VOC‐contaminated groundwater in order to obtain site‐specific reaction rates and to develop full‐scale design parameters. It was found that by using the two treatment technologies in combination, the influent concentration of 2,000 ppb total VOCs could be reduced to less than 1 ppb, thus meeting drinking wate